US Pat. No. 9,481,749

PROCESSES FOR PREPARING METALLOCENE-BASED CATALYST SYSTEMS IN CYCLOHEXENE

Chevron Phillips Chemical...

1. A process to produce a catalyst composition, the process comprising:
(i) contacting an activator-support and an organoaluminum compound for a first period of time to form a precontacted mixture;
and

(ii) contacting the precontacted mixture with a second mixture comprising cyclohexene and a metallocene compound for a second
period of time to form the catalyst composition.

US Pat. No. 9,238,193

SEPARATIONS WITH IONIC LIQUID SOLVENTS

CHEVRON PHILLIPS CHEMICAL...

1. A method comprising:
providing a process stream comprising an acid gas;
capturing at least a portion of the acid gas from the process stream by an ionic liquid solvent; and
recovering at least a portion of a captured acid gas from the ionic liquid solvent,
wherein the ionic liquid solvent comprises a Ag(I) salt, a Cu(I) salt, or combinations thereof.

US Pat. No. 9,382,348

SYSTEM AND METHOD FOR POLYMERIZATION

Chevron Phillips Chemical...

1. A method, comprising:
polymerizing a monomer in a polymerization reactor to produce a slurry comprising polyolefin particles and a diluent;
discharging at least the polyolefin particles and the diluent of the slurry as an effluent from the polymerization reactor
and into a slurry handling system;

conveying the effluent from the slurry handling system to a diluent and monomer recovery system, wherein the diluent and monomer
recovery system includes a separation vessel configured to separate the effluent into the polyolefin particles and the diluent;
and

injecting steam into the effluent downstream of the slurry handling system and upstream of the separation vessel using a steam
injection system.

US Pat. No. 9,358,515

COMPRESSIBLE LIQUID DILUENT IN POLYOLEFIN POLYMERIZATION

Chevron Phillips Chemical...

1. A method of operating a linear low-density polyethylene (LLDPE) reactor, comprising:
combining a catalyst with a diluent mixture in a polymerization reactor, wherein the diluent mixture comprises a diluent and
an olefin monomer;

operating the polymerization reactor above a critical pressure of the diluent mixture and below a critical temperature of
the diluent mixture;

forming a slurry comprising LLDPE particles and the diluent mixture in the polymerization reactor, wherein operating the polymerization
reactor above the critical pressure of the diluent mixture and below the critical temperature of the diluent mixture comprises
maintaining the LLDPE particles in a solid state and the diluent mixture in a compressible state;

discharging the slurry from the polymerization reactor;
separating a majority of the diluent mixture from the slurry with a recovery system; and
controlling, with one or more controllers, a pressure of the polymerization reactor above the critical pressure of the diluent
mixture and a temperature of the polymerization reactor below the critical temperature of the diluent mixture based at least
in part on a detected composition of the diluent mixture such that the diluent mixture is maintained in the compressible state
and two phase flow of the diluent mixture is prevented within the polymerization reactor.

US Pat. No. 9,085,736

SYSTEM AND METHOD FOR ON STREAM CATALYST REPLACEMENT

CHEVRON PHILLIPS CHEMICAL...

1. A process for operating a reforming reactor system comprising:
operating a plurality of reactors until at least one reactor is deemed to have an operational issue, wherein each of the plurality
of reactors contains a catalyst capable of converting at least a portion of a hydrocarbon stream to aromatic hydrocarbons,
wherein the plurality of reactors comprises three or more serially connected reactors, wherein the hydrocarbon stream flows
along a first flow path through the plurality of reactors in a first order, and wherein the at least one reactor is adjacent
to a second reactor of the plurality of reactors in the first flow path;

isolating the at least one reactor deemed to have the operational issue from a remaining plurality of reactors that continue
to operate to convert at least the portion of the hydrocarbon stream to aromatic hydrocarbons while the at least one reactor
deemed to have the operational issue is isolated from the plurality of remaining reactors;

addressing the operational issues;
reconnecting the at least one reactor to the remaining plurality of reactors at a new location to form a second flow path
of the hydrocarbon stream through the plurality of reactors, and wherein the at least one reactor is not adjacent to the second
reactor in the second flow path; and

resuming operations of the reforming reactor system to convert at least the portion of the hydrocarbon stream to aromatic
hydrocarbons.

US Pat. No. 9,133,370

METHODS OF MERCAPTANIZING OLEFINIC HYDROCARBONS AND COMPOSITIONS PRODUCED THEREFROM

Chevron Phillips Chemical...

1. A polythiol composition comprising sulfur-containing compounds, wherein the sulfur-containing compounds of the polythiol
composition comprise:
an average of from 0.3 to 6 wt. % sulfide sulfur;
from 30 to 85 wt. % tri(2-mercaptoethyl)cyclohexane; and
from 10 to 60 wt. % di(2-mercaptoethyl)vinylcyclohexane.

US Pat. No. 9,079,986

POLYOLEFIN PRODUCTION WITH DIFFERENT DILUENTS IN MULTIPLE POLYMERIZATION REACTORS

Chevron Phillips Chemical...

1. A method of operating a polyolefin reactor system, comprising:
polymerizing olefin in a first inert diluent in a first reactor to form a first polyolefin;
discharging continuously from the first reactor a transfer slurry comprising the first polyolefin and the first inert diluent;
processing the transfer slurry through a separator to form (1) a recycle stream comprising the first inert diluent and (2)
a concentrated slurry comprising the first polyolefin;

feeding the concentrated slurry to a second reactor;
polymerizing olefin in a second inert diluent in the second reactor to form a second polyolefin;
discharging from the second reactor a product slurry comprising the first polyolefin, the second polyolefin, and the second
inert diluent; and

wherein the first inert diluent and the second inert diluent are different, wherein process the transfer slurry comprises
feeding the transfer slurry to a wash column or decanter.

US Pat. No. 9,108,147

COMPONENT SEPARATIONS IN POLYMERIZATION

CHEVRON PHILLIPS CHEMICAL...

1. A process for component separation in a polymer production system, comprising:
polymerizing olefin monomers in a first polymerization reactor to yield a mid-polymerization product stream;
separating the mid-polymerization product stream into a mid-gas stream and a mid-polymer stream, wherein the mid-gas stream
comprises ethane, unreacted ethylene, and hydrogen; and

polymerizing the mid-polymer stream in a second polymerization reactor.

US Pat. No. 9,089,831

SYSTEM AND METHOD FOR BLENDING POLYMERS

Chevron Phillips Chemical...

1. A manufacturing system for producing a polyolefin, comprising:
a reactor system comprising a polymerization reactor, wherein the reactor system is configured to produce two or more polyolefin
polymers; and

an extruder comprising a screw having a feed zone and a high shear melting and mixing zone downstream from the feed zone,
the high shear melting and mixing zone starting a distance from an entry point of the screw corresponding to 35% -50% of the
overall screw L/D, wherein the screw is configured to blend the two or more polyolefin polymers, and wherein the screw comprises
segments configured to increase a degree of fill in the high shear melting and mixing zone, and the segments comprise a backward
conveying segment having a screw turn direction that is substantially opposite a screw turn direction of the feed zone, a
3-lobe kneading block segment positioned immediately adjacent and downstream of the feed zone, a neutral kneading block segment
positioned downstream of the 3-lobe kneading block segment, and a 2-lobe right hand kneading block segment positioned downstream
of the neutral kneading block segment.

US Pat. No. 9,180,405

ETHYLENE RECOVERY BY ABSORPTION

Chevron Phillips Chemical...

1. A process for recovery of ethylene from a polymerization product stream of a polyethylene production system, comprising:
separating a light gas stream from the polymerization product stream, wherein the light gas stream comprises ethane and unreacted
ethylene;

contacting the light gas stream with an absorption solvent system, wherein the contacting the light gas stream with the absorption
solvent system occurs at a temperature in a range of from about 40° F. to about 110° F., wherein at least a portion of the
unreacted ethylene from the light gas stream is absorbed by the absorption solvent system; and

recovering unreacted ethylene from the absorption solvent system to yield recovered ethylene,
wherein recovering unreacted ethylene from the absorption solvent system comprises depressurizing the absorption solvent system
having absorbed unreacted ethylene at a temperature in a range of from about 160° F. to about 200° F.

US Pat. No. 9,181,370

LOW DENSITY POLYOLEFIN RESINS WITH LOW MOLECULAR WEIGHT AND HIGH MOLECULAR WEIGHT COMPONENTS, AND FILMS MADE THEREFROM

Chevron Phillips Chemical...

1. An ethylene polymer composition comprising a higher molecular weight component and a lower molecular weight component,
wherein:
a ratio of the Mp of the higher molecular weight component to the Mp of the lower molecular weight component is in a range
from about 5:1 to about 100:1;

a number of LCB of the lower molecular weight component is in a range from about 5 to about 50 LCB per million total carbon
atoms; and

a number of LCB of the higher molecular weight component is less than or equal to about 5 LCB per million total carbon atoms.

US Pat. No. 9,144,787

SELECTIVE HYDROGENATION CATALYST AND METHODS OF MAKING AND USING SAME

Chevron Phillips Chemical...

1. A composition comprising:
an agglomerated inorganic support comprising an oxide of a metal or metalloid; and
at least one catalytically active Group 10 metal,
wherein the agglomerated inorganic support has pores, a total pore volume, and a pore size distribution; wherein the pore
size distribution displays at least two peaks of pore diameters, each peak having a maximum; wherein a first peak has a first
maximum of pore diameters of from greater than 1,000 nm to about 6,000 nm and a second peak has a second maximum of pore diameters
of less than about 120 nm; wherein greater than or equal to about 15% of the total pore volume of the agglomerated inorganic
support is contained within the first peak of pore diameters; and wherein the composition has a total pore volume of from
about 0.1 cc/g to 0.6 cc/g as determined by differential mercury intrusion.

US Pat. No. 9,102,768

CYCLOBUTYLIDENE-BRIDGED METALLOCENES AND CATALYST SYSTEMS CONTAINING THE SAME

Chevron Phillips Chemical...

1. An olefin polymerization process, the process comprising:
contacting a catalyst composition with an olefin monomer and an optional olefin comonomer in a polymerization reactor system
under polymerization conditions to produce an olefin polymer, wherein the olefin polymer is characterized by less than about
0.002 long chain braches (LCB) per 1000 total carbon atoms, and wherein the catalyst composition comprises a metallocene compound,
an activator, and an optional co-catalyst,

wherein the metallocene compound has the formula:

M is Ti, Zr, or Hf;
Cp is a cyclopentadienyl group with an alkyl and/or an alkenyl substituent;
X1 and X2 independently are a monoanionic ligand; and

RX and RY independently are H, a halide, a C1 to C36 hydrocarbyl group, a C1 to C36 halogenated hydrocarbyl group, a C1 to C36 hydrocarboxy group, or a C1 to C36 hydrocarbylsilyl group.

US Pat. No. 9,056,930

CATALYST COMPOSITIONS CONTAINING TRANSITION METAL COMPLEXES WITH THIOLATE LIGANDS

Chevron Phillips Chemical...

1. A catalyst composition comprising an activator and a compound having the formula:
wherein:
M1 is a transition metal;

each R1A and R1B independently is a C1 to C18 hydrocarbyl or hydrocarbylsilyl group, wherein p and q independently are 1, 2, 3, or 4;

D is O or NR1C, wherein R1C is hydrogen or a C1 to C18 hydrocarbyl group;

each X0 independently is a neutral ligand, wherein a is 0, 1, or 2;

each X1 independently is a monoanionic ligand, wherein b is 0, 1, 2, 3, or 4;

X2 is a dianionic ligand, wherein c is 0 or 1; and

an oxidation state of M1 is equal to (b+2c+2).

US Pat. No. 9,359,460

CYCLOBUTYLIDENE-BRIDGED METALLOCENES AND CATALYST SYSTEMS CONTAINING THE SAME

Chevron Phillips Chemical...

1. A catalyst composition comprising a metallocene compound, an activator, and an optional co-catalyst, wherein the metallocene
compound has the formula:
wherein:
M is Ti, Zr, or Hf;
Cp is a cyclopentadienyl group with an alkyl and/or an alkenyl substituent;
X1 and X2 independently are a monoanionic ligand;

RX and RY independently are H, a halide, a C1 to C36 hydrocarbyl group, a C1 to C36 halogenated hydrocarbyl group, a C1 to C36 hydrocarboxy group, or a C1 to C36 hydrocarbylsilyl group;

a catalyst activity of the catalyst composition is greater than about 350,000 grams of ethylene homopolymer per millimole
of the metallocene compound per hour, under slurry polymerization conditions, with a triisobutylaluminum co-catalyst, using
isobutane as a diluent, and with a polymerization temperature of 80° C. and a reactor pressure of 340 psig; and

a catalyst activity of the catalyst composition is greater than about 1,500,000 grams of ethylene/1-hexene copolymer per millimole
of the metallocene compound per hour, under slurry polymerization conditions, with a triisobutylaluminum co-catalyst, using
isobutane as a diluent, and with a polymerization temperature of 80° C. and a reactor pressure of 340 psig.

US Pat. No. 9,283,555

PHOSPHINYL AMIDINE COMPOUNDS, METAL COMPLEXES, CATALYST SYSTEMS, AND THEIR USE TO OLIGOMERIZE OR POLYMERIZE OLEFINS

Chevron Phillips Chemical...

1. A catalyst system comprising:
i) an N2-phosphinyl amidine metal salt complex having the formula:


wherein:
R1 is a C1 to C30 organyl group,

R2 is a C1 to C30 organyl group consisting essentially of inert functional groups,

R3 is hydrogen or a C1 to C30 organyl group consisting essentially of inert functional groups,

R4 and R5 are each independently a C1 to C30 organyl group consisting essentially of inert functional groups,

MXp represents the metal salt where M is a transition metal, X is a monoanion, and p ranges from 2 to 6,

Q is a neutral ligand, and
a ranges from 0 to 6, and
ii) a metal alkyl,
wherein the inert functional groups are selected from the group consisting of halo groups, nitro groups, hydrocarboxy groups,
sulfidyl groups, hydrocarbyl groups, or combinations thereof.

US Pat. No. 9,181,369

POLYMER FILMS HAVING IMPROVED HEAT SEALING PROPERTIES

Chevron Phillips Chemical...

1. A film prepared from an ethylene alpha-olefin copolymer having:
(a) a density in the range of from greater than about 0.910 g/cc to about 0.930 g/cc, as determined according to ASTM D1505;
(b) a melt index in the range of from greater than about 0.5 g/10 min to about 3 g/10 min, as determined according to ASTM
D1238, Condition 190° C./2.16 kg;

(c) a molecular weight distribution of from about 3.4 to about 12, as determined by gel permeation chromatography;
(d) a weight average molecular weight of from greater than about 85 kg/mol to about 160 kg/mol, as determined by gel permeation
chromatography;

(e) a z-average molecular weight of from greater than about 210 kg/mol to about 500 kg/mol, as determined by gel permeation
chromatography;

(f) a ratio of high load melt index to melt index of from about 16 to about 30;
(g) less than 22 branches per 1000 carbon atoms; and
(h) a number average molecular weight of from about 7 kg/mol to about 50 kg/mol.

US Pat. No. 9,079,993

HIGH CLARITY LOW HAZE COMPOSITIONS

CHEVRON PHILLIPS CHEMICAL...

1. A bimodal polymer having a weight fraction of a lower molecular weight (LMW) component ranging from about 0.25 to about
0.45, a weight fraction of a higher molecular weight (HMW) component ranging from about 0.55 to about 0.75 and a density of
from about 0.931 g/cc to about 0.955 g/cc which when tested in accordance with ASTM D1003 using a 1 mil test specimen displays
a haze characterized by equation: % Haze=2145?2216*FractionLMw?181*a molecular weight distribution of the LMW component (MWDLMW)?932*a molecular weight distribution of the HMW component (MWDHMW)+27*(FractionLMW*MWDLMW)+1019*(FractionLMW*MWDHMW)+73*(MWDLMW*MWDHmw) wherein fraction refers to the weight fraction of the component in the polymer as a whole.
US Pat. No. 9,073,029

SYSTEM AND METHOD FOR DETERRING FOULING IN A POLYMERIZATION REACTOR

Chevron Phillips Chemical...

1. A method, comprising:
introducing a catalyst composition formed within a precontactor into a polymerization zone of a polymerization reactor; and
polymerizing, within the polymerization zone, an olefin monomer using the catalyst composition to produce a polyolefin polymer;
wherein the catalyst composition formed within the precontactor comprises a contact product of contact components comprising:
an olefin polymerization catalyst; and
an agent comprising an ammonium salt; and
wherein the catalyst composition has a greater catalyst activity in the presence of water than the olefin polymerization catalyst
where the ammonium salt is not present.

US Pat. No. 9,062,134

HALF-METALLOCENE COMPOUNDS AND CATALYST COMPOSITIONS

Chevron Phillips Chemical...

1. An olefin polymerization process, the process comprising:
contacting a catalyst composition with an olefin monomer and optionally an olefin comonomer under polymerization conditions
to produce an olefin polymer, wherein the catalyst composition comprises a hybrid metallocene compound and an activator, and
wherein the hybrid metallocene compound has the formula:


 wherein:
M is Zr or Hf;
X1 and X2 independently are a halide or a substituted or unsubstituted aliphatic, aromatic, or cyclic group, or a combination thereof;
and

X3 is a substituted or unsubstituted cyclopentadienyl, indenyl, or fluorenyl group, wherein any substituents on X3 independently are a hydrogen atom or a substituted or unsubstituted aliphatic, aromatic, or cyclic group, or a combination
thereof.

US Pat. No. 9,447,481

DIPENTENE DIMERCAPTAN COMPOSITIONS AND USE THEREOF AS A MINING CHEMICAL COLLECTOR

Chevron Phillips Chemical...

15. A collector composition comprising water and a polythiol composition comprising sulfur-containing compounds, the sulfur-containing
compounds comprising:
(i) dipentene dimercaptan compounds; and
(ii) at least 4 wt. % of a heavy fraction comprising intermolecular sulfide compounds having at least one thiol sulfur group
(—SH), at least one intermolecular sulfide group (—S—), and at least two substituted cyclohexyl groups.

US Pat. No. 9,441,063

TITANIUM PHOSPHINIMIDE AND TITANIUM IMINOIMIDAZOLIDIDE CATALYST SYSTEMS WITH ACTIVATOR-SUPPORTS

Chevron Phillips Chemical...

1. An olefin polymerization process, the process comprising:
contacting a catalyst composition with an olefin monomer and an optional olefin comonomer in a polymerization reactor system
under polymerization conditions to produce an olefin polymer,

wherein the catalyst composition comprises:
a half-metallocene titanium compound;
(ii) an activator-support comprising a solid oxide treated with an electron-withdrawing ion, wherein the solid oxide comprises
alumina, silica-alumina, silica-coated alumina, or any combination thereof, and the electron-withdrawing anion comprises sulfate
and/or fluoride; and

(iii) an optional co-catalyst;
wherein the half-metallocene titanium compound has the formula:
wherein:
Cp is a cyclopentadienyl, indenyl, or fluorenyl group;
each X independently is a monoanionic ligand; and
L is a phosphinimide ligand; and
wherein the olefin polymer has less than or equal to about 0.008 long chain branches (LCB) per 1000 total carbon atoms.

US Pat. No. 9,399,608

ETHYLENE RECOVERY BY ABSORPTION

Chevron Phillips Chemical...

1. A process for the recovery of ethylene from a polymerization product stream of a polyethylene production system, the process
comprising:
separating a light gas stream from the polymerization product stream in a flash tank, wherein the light gas stream comprises
ethane and unreacted ethylene;

routing the light gas stream from the flash tank to an absorption solvent system;
contacting the light gas stream with the absorption solvent system, wherein the contacting the light gas stream with the absorption
solvent system occurs at a temperature in a range of from about 40° F. to about 110° F., wherein at least a portion of the
unreacted ethylene from the light gas stream is absorbed by the absorption solvent system; and

recovering unreacted ethylene from the absorption solvent system to yield recovered ethylene.

US Pat. No. 9,376,511

POLYMERIZATION CATALYSTS AND POLYMERS

Chevron Phillips Chemical...

1. A method comprising:
subjecting a support material to a first thermal treatment at a temperature in a range of from about 550° C. to about 900°
C. for a period of from about 1 hour to about 10 hours to produce a thermally-treated support material;

cooling the thermally-treated support material to a temperature in the range of from about 100° C. to about 150° C.;
contacting the thermally-treated support material with chromium (III) acetylacetonate, which is in powder or crystal form,
to produce a mixture; and

subjecting the mixture in the presence of oxygen to a second thermal treatment at a temperature in a range of from about 100°
C. to about 500° C. for a period of from about 1 hour to about 10 hours, wherein at least a portion of the chromium(III) acetylacetonate
sublimes onto the support material to produce a polymerization catalyst and wherein the second thermal treatment occurs at
a temperature that is less than the first thermal treatment.

US Pat. No. 9,321,026

SYSTEM AND METHOD FOR SEAL FLUSH

Chevron Phillips Chemical...

1. A system, comprising:
a reactor circulation pump configured to circulate a slurry through a polymerization reactor, wherein the slurry comprises
an olefin monomer, a catalyst, and a diluent;

a catalyst-inhibiting additive system configured to supply a catalyst-inhibiting additive to a seal of the reactor circulation
pump; and

a seal flush system configured to generate a seal flush mixture and supply the seal flush mixture to the seal of the reactor
circulation pump.

US Pat. No. 9,221,727

SELECTIVE HYDROGENATION CATALYST AND METHODS OF MAKING AND USING SAME

Chevron Phillips Chemical...

1. A method of selectively hydrogenating highly unsaturated hydrocarbons to an unsaturated hydrocarbon enriched composition
comprising:
contacting the highly unsaturated hydrocarbons and hydrogen in a reaction zone with a catalyst comprising palladium and an
organophosphorus compound under conditions suitable for hydrogenating at least a portion of the highly unsaturated hydrocarbons
to unsaturated hydrocarbons to produce the unsaturated hydrocarbon enriched composition.

US Pat. No. 9,187,269

POLYMERIC PIPE LOADING

CHEVRON PHILLIPS CHEMICAL...

10. A polymeric pipe loading method comprising:
receiving a length of polymeric pipe from an extruder on a conveyor chain of a positioning platform, wherein the conveyor
chain comprises a plurality of rollers, wherein the plurality of rollers have a longitudinal axis which is perpendicular to
a longitudinal axis of the length of polymeric pipe, wherein the plurality of rollers comprises at least one ratcheted roller;

longitudinally indexing the length of polymeric pipe from the extruder while the length of polymeric pipe is received on the
conveyor chain and without slipping the length of polymeric pipe on the plurality of rollers of the conveyor chain via a unidirectional
rotation of the at least one ratcheted roller;

engaging the length of polymeric pipe with a vacuum lift mechanism; and
transferring the length of polymeric pipe to a bundling cart.

US Pat. No. 9,096,694

MONOMER/DILUENT RECOVERY

CHEVRON PHILLIPS CHEMICAL...

1. A polymerization process comprising:
producing a polymerization product;
recovering a vapor phase from the polymerization product;
fractionating the vapor phase in a first column to yield a fraction stream;
fractionating the fraction stream in a second column;
emitting a first stream and a second stream from the second column, wherein the first stream comprises a diluent, wherein
the second stream comprises an olefin monomer, the diluent, and hydrogen, wherein the first stream is a bottoms stream of
the second column, and wherein the second stream is a side-draw stream of the second column;

recycling at least a portion of the diluent of the first stream to a first polymerization reactor; and
recycling at least a portion of the diluent, at least a portion of the olefin monomer, and at least a portion of the hydrogen
of the second stream to a second polymerization reactor.

US Pat. No. 9,068,027

METHODS OF PREPARING A POLYMERIZATION CATALYST

CHEVRON PHILLIPS CHEMICAL...

1. A method comprising:
contacting a silica support material consisting essentially of silica with a sulfating agent to form a sulfated silica support
material comprising sulfate anions;

thermally treating the sulfated silica support material to form a thermally treated sulfated silica support material;
contacting the thermally treated sulfated silica support material with a chromium-containing compound to form a mixture;
thermally treating the mixture to form a polymerization catalyst wherein the polymerization catalyst has a sulfate anion content
of from about 0.1 wt. % to about 3.0 wt. %;

contacting a monomer with the polymerization catalyst under conditions suitable for the formation of a polymer; and
recovering the polymer wherein the polymer has a weight average molecular weight that is decreased by from about 5% to about
99% when compared to the weight average molecular weight of a polymer obtained from an otherwise identical catalyst made in
the absence of the sulfating agent.

US Pat. No. 9,427,694

HYDROCARBON RECOVERY WITH PRESSURE SWING ADSORPTION

Chevron Phillips Chemical...

1. A polyethylene production system comprising:
an ethylene polymerization reactor system, a separator, one or more distillation columns, and at least two pressure swing
adsorption units operated in parallel;

wherein the ethylene polymerization reactor system is configured to receive a reagents stream and to produce a polymerization
product stream;

wherein the separator is configured to receive at least a portion of the polymerization product stream and to produce a polymer
stream and a gas stream;

wherein the one or more distillation columns are configured to receive at least a portion of the gas stream and to produce
a light hydrocarbon stream, wherein the light hydrocarbon stream comprises a first hydrocarbon and a second hydrocarbon;

wherein each of the at least two pressure swing adsorption units is configured to receive at least a portion of the light
hydrocarbon stream and a sweeping gas stream, and to produce a non-adsorbed gas stream comprising the second hydrocarbon and
a spent sweeping gas comprising the first hydrocarbon;

wherein a hydrocarbon adsorber bed is disposed in each pressure swing adsorption unit, wherein the hydrocarbon adsorber bed
comprises a hydrocarbon adsorber and wherein the hydrocarbon adsorber has an adsorption selectivity of the first hydrocarbon
versus the second hydrocarbon as determined by volumetric adsorption at 298 K and at a first pressure of equal to or greater
than about 2;

wherein upon contact of the light hydrocarbon stream with the hydrocarbon adsorber at the first pressure the hydrocarbon adsorber
adsorbs at least a portion of the first hydrocarbon of the light hydrocarbon stream to yield a loaded hydrocarbon adsorber
comprising adsorbed first hydrocarbon, and the non-adsorbed gas stream comprising at least at least a portion of the second
hydrocarbon of the light hydrocarbon stream;

wherein the hydrocarbon adsorber regenerates at a second pressure to yield an unloaded hydrocarbon adsorber and a desorbed
first hydrocarbon, wherein the desorbed first hydrocarbon comprises at least a portion of the adsorbed first hydrocarbon,
and wherein the first pressure is greater than the second pressure by equal to or greater than about 400 kPa; and

wherein the unloaded hydrocarbon adsorber is contacted with the sweeping gas stream to yield a purged hydrocarbon adsorber.

US Pat. No. 9,200,214

CATALYTIC REFORMING

Chevron Phillips Chemical...

1. A method for catalytic reforming comprising:
providing a feedstream comprising C6-convertibles to one or more reactors, wherein the C6-convertibles are C6 hydrocarbons having no more than one branch;

contacting the feedstream with a reforming catalyst in the one or more reactors at a temperature between 700° F. and 1050°
F., and at a first value for each of a LHSV, a H2/HC ratio, and a conversion of the C6-convertibles;

kinetically modeling a fouling curve of the reforming catalyst with a deactivation kinetic model comprising at least one first
order aromatization reaction rate equation for a plug flow reactor, based on the first value for each of the LHSV, the H2/HC ratio, and the conversion of the C6-convertibles to determine a start of run temperature To;

approximating a fouling curve with an analytical solution to the deactivation kinetic model;
calculating run lengths of the reforming catalyst for each of a plurality of values for each of the LHSV, the H2/HC ratio, and the conversion of the C6-convertibles using the analytical solution and the start of run temperature To;

calculating net present amounts of benzene that is are produced over the run-lengths of the reforming catalyst for each of
the plurality of values for each of the LHSV, the H2/HC ratio, and the conversion of the C6-convertibles;

selecting a second value for each of the LHSV, the H2/HC ratio, and the conversion of the C6-convertibles from the plurality of values that maximizes the net present amount of benzene produced over the run-length of
the reforming catalyst;

operating the one or more reactors at the selected second value for each of the LHSV, the H2/HC ratio, and the conversion of the C6-convertibles; and

recovering an effluent from the one or more reactors, wherein the effluent comprises at least about 40 wt % benzene.

US Pat. No. 9,120,886

POLYMERIZATION PRODUCT PRESSURES IN OLEFIN POLYMERIZATION

CHEVRON PHILLIPS CHEMICAL...

1. A process for pressure management of a polymerization system comprising:
operating a slurry polymerization reactor at a pressure above a bubble point pressure of a liquid phase of a polymerization
slurry;

withdrawing a polymerization product from the slurry polymerization reactor; and
reducing a pressure of the polymerization product to a pressure below a bubble point pressure of one or more components in
a liquid phase of the polymerization product at least at one location downstream of the slurry polymerization reactor and
upstream of a heater.

US Pat. No. 9,447,204

METHODS FOR TERMINATING OLEFIN POLYMERIZATIONS

Chevron Phillips Chemical...

1. A composition consisting of:
a hydrocarbon solvent having from 3 to 18 carbon atoms; and
a catalyst deactivating agent comprising a compound having the structure:
or a combination thereof.

US Pat. No. 9,309,338

HIGH CLARITY LOW HAZE COMPOSITIONS

Chevron Phillips Chemical...

1. A bimodal polymer having a weight fraction of a lower molecular weight (LMW) component ranging from about 0.25 to about
0.45, a weight fraction of a higher molecular weight (HMW) component ranging from about 0.55 to about 0.75 and a density of
from about 0.931 g/cc to about 0.955 g/cc which when tested in accordance with ASTM D1003 using a 1 mil test specimen displays
a haze characterized by equation: % Haze=2145?2216*FractionLMW?181* a molecular weight distribution of the LMW component (MWDLMW)?932* a molecular weight distribution of the HMW component(MWDHMW)+27*(FractionLMW* MWDLMW)+1019*(FractionLMW*MWDHMW)+73*(MWDLMW*MWDHMW) wherein fraction refers to the weight fraction of the component in the polymer as a whole, wherein the bimodal polymer is
produced by:
contacting a polymerization catalyst and monomer in the presence of hydrogen in one or more polymerization reactors to yield
the bimodal polymer.

US Pat. No. 9,273,170

POLYMERS WITH IMPROVED TOUGHNESS AND ESCR FOR LARGE-PART BLOW MOLDING APPLICATIONS

Chevron Phillips Chemical...

1. An ethylene polymer having a density of greater than or equal to about 0.945 g/cm3, a high load melt index (HLMI) in a range from about 1 to about 25 g/10 min, a peak molecular weight (Mp) in a range from
about 52,000 to about 132,000 g/mol, a Mn in a range from about 30,000 to about 60,000 g/mol, a Mz in a range from about 1,750,000
to about 4,000,000 g/mol, a ratio of Mw/Mn in a range from about 5 to about 22, less than about 0.008 long chain branches
per 1000 total carbon atoms, and an environmental stress crack resistance (ESCR) of at least 250 hours.

US Pat. No. 9,505,675

DEACTIVATION OF A PROCESS BY-PRODUCT

Chevron Phillips Chemical...

1. A process of forming an oligomerization product comprising:
contacting an olefin and a catalyst system to form an oligomerization product at oligomerization conditions, wherein a reaction
system effluent comprises components selected from the oligomerization product, a chromium containing compound, pr combinations
thereof; and

adding a beta-diketone to the chromium containing compound in i) the reaction system effluent, ii) a deactivated reaction
system effluent stream, iii) a deactivated and quenched reaction system effluent, or iv) a reaction system effluent stream,
a deactivated reaction system effluent stream, or a deactivated and quenched reaction system effluent stream which has been
processed to remove one or more materials comprising all or a portion of ethylene, the oligomerization product, and/or reaction
solvent, at conditions capable of changing an oxidation state of chromium.

US Pat. No. 9,394,393

HIGHER DENSITY POLYOLEFINS WITH IMPROVED STRESS CRACK RESISTANCE

Chevron Phillips Chemical...

1. An ethylene/?-olefin copolymer having a density from about 0.935 to about 0.947 g/cm3, a zero-shear viscosity in a range from about 1×106 to about 1×109 Pa-sec, a CY-a parameter in a range from about 0.08 to about 0.35, a peak molecular weight (Mp) in a range from about 35,000
to about 100,000 g/mol, a bimodal molecular weight distribution, and a number of short chain branches per 1000 total carbon
atoms at Mz that is greater than at Mn.
US Pat. No. 9,346,897

PEROXIDE TREATED METALLOCENE-BASED POLYOLEFINS WITH IMPROVED MELT STRENGTH

Chevron Phillips Chemical...

1. An ethylene polymer having a ratio of Mw/Mn of less than or equal to about 5, a ratio of Mz/Mw of less than or equal to
about 2.3, a zero-shear viscosity at 190° C. of greater than or equal to about 8×104 Pa-sec, a peak melting point in a range from about 100 to about 120° C., a vicat softening temperature in a range from about
95 to about 110° C., and a difference between the peak melting point and the vicat softening temperature of less than or equal
to about 16° C.
US Pat. No. 9,340,716

METHODS OF MERCAPTANIZING OLEFINIC HYDROCARBONS AND COMPOSITIONS PRODUCED THEREFROM

Chevron Phillips Chemical...

1. A polythiol composition derived from cyclododecatriene comprising sulfur-containing compounds, the sulfur-containing compounds
of the polythiol composition comprising:
i) an average of at least 20 wt. % thiol sulfur; and
ii) an average of from 0.1 to 8 wt. % sulfide sulfur.

US Pat. No. 9,187,383

COMPONENT SEPARATIONS IN POLYMERIZATION

CHEVRON PHILLIPS CHEMICAL...

1. A process for component separation in a polymer production system, comprising:
separating a polymerization product stream into a gas stream and a polymer stream, wherein the gas stream comprises ethane
and unreacted ethylene;

distilling the gas stream, in a single distillation column, into a light hydrocarbon stream and a side stream, wherein the
light hydrocarbon stream comprises ethane and unreacted ethylene, wherein the side stream comprises isobutane;

contacting the light hydrocarbon stream with an absorption solvent system, wherein at least a portion of the unreacted ethylene
from the light hydrocarbon stream is absorbed by the absorption solvent system; and

recovering a waste gas stream from the absorption solvent system, wherein the waste gas stream comprises ethane, hydrogen,
or combinations thereof.

US Pat. No. 9,382,175

PROCESSED SUPPORT AND METHODS OF MAKING AND USING SAME

Chevron Phillips Chemical...

1. A method comprising:
providing an aromatization catalyst comprising a treated support wherein the treated support is produced by contacting a zeolitic
support with a sodium specific removal agent, wherein the zeolitic support comprises at least one zeolite selected from the
group consisting of L-zeolite, X-zeolite, Y-zeolite, omega zeolite, beta zeolite, ZSM-4, ZSM-5, ZSM-10, ZSM-12, ZSM-20, REY,
USY, RE-USY, LZ-210, LZ-210-A, LZ-210-M, LZ-210-T, SSZ-24, ZZA-26, SSZ-31, SSZ-33, SSZ-35, SSZ-37, SSZ-41, SSZ-42, SSZ-44,
and MCM-58, and wherein the sodium specific removal agent comprises an ammonium-containing compound, an alkyl, aryl or arylalkyl
ammonium-containing compound, or combinations thereof; and

contacting the aromatization catalyst with a hydrocarbon feed in a reaction zone under conditions suitable for the production
of an aromatic product.

US Pat. No. 9,346,896

SILICA-COATED ALUMINA ACTIVATOR-SUPPORTS FOR METALLOCENE CATALYST COMPOSITIONS

Chevron Phillips Chemical...

1. A catalyst composition comprising:
(a) at least one metallocene compound; and
(b) at least one activator-support;
wherein the at least one activator-support comprises at least one silica-coated alumina treated with at least one electron-withdrawing
anion, wherein:

the at least one silica-coated alumina has a weight ratio of alumina to silica in a range from about 1:1 to about 100:1,
the at least one electron-withdrawing anion comprises fluoride, and
a catalyst activity of the catalyst composition is greater than that of a catalyst system containing the at least one metallocene
compound and a silica-alumina treated with the at least one electron-withdrawing anion, under the same polymerization conditions.

US Pat. No. 9,175,109

OLIGOMERIZATION PROCESSES AND POLYMER COMPOSITIONS PRODUCED THEREFROM

Chevron Phillips Chemical...

1. A composition comprising:
a high molecular weight hydrocarbon polymer component and a low molecular weight hydrocarbon oligomer component, wherein a
ratio of the Mp of the high molecular weight hydrocarbon polymer component to the Mp of the low molecular weight hydrocarbon
oligomer component is in a range from 400:1 to 2000:1; and

a liquid component in a range from 1 wt. % to 35 wt. % of the composition, the liquid component comprising saturated hydrocarbon
compounds having 16 or less carbon atoms and unsaturated hydrocarbon compounds having 18 or less carbon atoms; wherein

the composition has a Mw in range from 25,000 to 250,000 g/mol.

US Pat. No. 9,163,564

METHOD AND SYSTEM FOR ENERGY GENERATION IN A CHEMICAL PLANT BY UTILIZING FLARE GAS

Chevron Phillips Chemical...

1. A power generation system, comprising:
a reciprocating engine or a burner configured to burn a low-BTU gas, wherein the low-BTU gas comprises a flare gas having
an energy content greater than about 30% methane by volume;

a chemical production plant comprising a flare system comprising the flare gas, a flare and a flare header fluidly coupling
the flare to a process vessel in the chemical production plant;

a conduit diverging from the flare header at a point between the flare and the process vessel and fluidly coupling the flare
header and the reciprocating engine or the burner, wherein the conduit is configured to divert at least a portion of the flare
gas from the flare header to power the reciprocating engine or the burner; and

an energy recovery device powered by the engine or the burner.

US Pat. No. 9,102,865

WELLBORE SERVICING FLUIDS COMPRISING CATIONIC POLYMERS AND METHODS OF USING SAME

Chevron Phillips Chemical...

1. A method comprising:
placing a wellbore servicing fluid comprising a cationic polymer, a brine, and a solid into a wellbore, wherein the cationic
polymer has a molecular weight of from about 300,000 Daltons to about 10,000,000 Daltons; wherein the brine has a density
of from about 8.4 lb/gal to about 19.2 lb/gal; wherein the solid comprises a weighting agent comprising barite, hematite,
ilmenite, iron carbonate, magnesium carbonate, calcium carbonate, or combinations thereof; and wherein the wellbore servicing
fluid displays shear thinning rheology at a shear rate of from about 3 sec?1 to about 300 sec?1 and a temperature of from about 75° F. to about 500° F.

US Pat. No. 9,505,856

METHODS FOR MAKING FLUORIDED CHROMIUM (VI) CATALYSTS, AND POLYMERIZATION PROCESSES USING THE SAME

Chevron Phillips Chemical...

1. A process to produce a fluorided chromium catalyst, the process comprising:
(a) calcining a supported chromium catalyst at a peak calcining temperature to produce a calcined supported chromium catalyst;
and

(b) contacting the calcined supported chromium catalyst at a peak fluoriding temperature with a vapor comprising a fluorine-containing
compound to produce the fluorided chromium catalyst;

wherein the peak fluoriding temperature is at least about 50° C. less than the peak calcining temperature.
US Pat. No. 9,421,530

METHODS OF REGENERATING AROMATIZATION CATALYSTS

Chevron Phillips Chemical...

1. A method of treating a spent catalyst comprising platinum and a catalyst support, the method comprising:
(i) contacting the spent catalyst with a pre-drying gas stream consisting essentially of an inert gas;
(ii) contacting the spent catalyst with a chlorine-containing stream comprising a chlorine-containing compound to produce
a chlorinated spent catalyst;

(iii) contacting the chlorinated spent catalyst with a fluorine-containing stream comprising a fluorine-containing compound
to produce a chlorinated-fluorinated spent catalyst;

(iv) contacting the chlorinated-fluorinated spent catalyst with a purging stream consisting essentially of an inert gas; and
(v) contacting the chlorinated-fluorinated spent catalyst with a decoking gas stream comprising oxygen to produce a de-coked
catalyst.

US Pat. No. 9,375,708

COMPOSITIONS AND CATALYST SYSTEMS OF METAL PRECURSORS AND OLEFINIC DILUENTS

Chevron Phillips Chemical...

1. A composition comprising:
a) a chromium catalyst precursor, and
b) about 10% to about 95% by weight of an olefinic diluent having between 6 and 18 carbon atoms, wherein the composition does
not comprise a metal alkyl compound.

US Pat. No. 9,339,755

ETHYLENE SEPARATION WITH TEMPERATURE SWING ADSORPTION

Chevron Phillips Chemical...

1. A process for component separation in a polymer production system, comprising:
(a) separating a polymerization product stream into a gas stream and a polymer stream, wherein the gas stream comprises unreacted
ethylene monomer, optional unreacted comonomer, and ethane;

(b) processing at least a portion of the gas stream in one or more distillation columns to form a light hydrocarbon stream
comprising ethylene and ethane;

(c) contacting at least a portion of the light hydrocarbon stream with a temperature swing adsorber contactor (TSAC) to yield
a loaded TSAC and a non-adsorbed gas stream, wherein at least a portion of the ethylene is adsorbed by the TSAC at a first
temperature to yield TSAC-adsorbed ethylene, wherein a portion of the ethane is adsorbed by the TSAC at the first temperature
to yield TSAC-adsorbed ethane, wherein the loaded TSAC comprises TSAC-adsorbed ethylene and TSAC-adsorbed ethane, and wherein
the TSAC is characterized by an adsorption selectivity of ethylene versus ethane at the first temperature of equal to or greater
than about 5;

(d) heating at least a portion of the loaded TSAC to a second temperature to yield a regenerated TSAC, desorbed ethylene and
desorbed ethane, wherein the desorbed ethylene comprises at least a portion of the TSAC-adsorbed ethylene, wherein the desorbed
ethane comprises at least a portion of the TSAC-adsorbed ethane, wherein the second temperature is greater than the first
temperature by equal to or greater than about 10° C., and wherein a molar ratio of desorbed ethylene to TSAC-adsorbed ethylene
is from about 0.01 to about 1; and

(e) contacting at least a portion of the regenerated TSAC with a sweeping gas stream to yield a recovered adsorbed gas stream,
wherein the recovered adsorbed gas stream comprises sweeping gas, recovered ethylene and recovered ethane, wherein the recovered
ethylene comprises at least a portion of the desorbed ethylene, and wherein the recovered ethane comprises at least a portion
of the desorbed ethane.

US Pat. No. 9,120,826

OLEFIN HYDROBORATION

Chevron Phillips Chemical...

1. A process comprising:
contacting (i) an alkene, (ii) a hydrogen-boron bond containing compound, and (iii) a metal complex selected from the group
consisting of an N2-phosphinyl amidine metal complex, an N2-phosphinyl formamidine complex, and an N2-phosphinyl guanidine metal complex to form an alkyl-boron compound wherein the alkylboron compound is formed at a temperature
of from 15° C. to 30° C.

US Pat. No. 9,334,203

OLIGOMERIZATION OF ALPHA OLEFINS USING METALLOCENE-SSA CATALYST SYSTEMS AND USE OF THE RESULTANT POLYALPHAOLEFINS TO PREPARE LUBRICANT BLENDS

Chevron Phillips Chemical...

1. A composition comprising a polyalphaolefin, the polyalphaolefin being produced from a C6 to C16 normal alpha olefin comprising at least 82.5 weight percent of a C8 normal alpha olefin, the polyalphaolefin comprising:
a) less than 1 weight % saturated alpha olefin monomer;
b) less than 3 weight % saturated dimers; and
c) greater than 80 weight % saturated higher oligomers
and having
i) a 100° C. kinematic viscosity of at least 25 cSt;
ii) a viscosity index greater than 160;
iii) a pour point less than ?35° C.; and
iv) no discernable crystallization as determined by differential scanning calorimetry using ASTM D 3418.
US Pat. No. 9,217,049

DUAL CATALYST SYSTEMS FOR PRODUCING POLYMERS WITH A BROAD MOLECULAR WEIGHT DISTRIBUTION AND A UNIFORM SHORT CHAIN BRANCH DISTRIBUTION

Chevron Phillips Chemical...

1. An olefin polymer having a melt index of less than or equal to about 50 g/10 min, a ratio of Mw/Mn in a range from about
4 to about 20, a density in a range from about 0.90 g/cm3 to about 0.945 g/cm3, and a percentage of data points deviating from the average short chain branch content, determined over the range from D15
to D85, by greater than 1 short chain branch per 1000 total carbon atoms of less than or equal to about 10%.
US Pat. No. 9,340,715

METHODS OF MERCAPTANIZING OLEFINIC HYDROCARBONS AND COMPOSITIONS PRODUCED THEREFROM

Chevron Phillips Chemical...

1. A polythiol composition comprising sulfur-containing compounds, wherein the sulfur-containing compounds of the polythiol
composition comprise:
from 30 to 85 wt. % tri(2-mercaptoethyl)cyclohexane; and
from 0.1 to 60 wt. % di(2-mercaptoethyl)vinylcyclohexane.
US Pat. No. 9,340,717

METHODS OF MERCAPTANIZING OLEFINIC HYDROCARBONS AND COMPOSITIONS PRODUCED THEREFROM

Chevron Phillips Chemical...

1. A process for forming a polythiol composition, the process comprising:
1) contacting
a) a hydrocarbon compound having at least two olefinic double bonds;
b) H2S; and

c) a phosphite compound; and
2) forming the polythiol composition;wherein a molar ratio of H2S to olefinic double bonds of the hydrocarbon compound is in a range from 10:1 to 500:1.

US Pat. No. 9,302,244

FLASHLINE HEATER SYSTEM AND METHOD

Chevron Phillips Chemical...

1. A system, comprising:
a flashline heater comprising an upstream end coupled to a polymerization reactor via a continuous take off device and a discharge
end coupled to a separation vessel;

a discharged stream within the flashline heater and received from the polymerization reactor via the continuous take off device,
wherein the discharged stream comprises a vapor part generated from a liquid part and a solid part in thermal equilibrium
with the vapor part at the discharge end of the flashline heater, wherein the vapor part in thermal equilibrium with the solid
part is formed by a process comprising:

receiving the discharged stream from the polymerization reactor via the continuous take off device in the flashline heater,
the discharged stream comprising the liquid part and the solid part upon entry into the flashline heater;

heating the discharged stream in the flashline heater as the discharged stream passes along a length of the flashline heater
such that at least a portion of the liquid part vaporizes to generate the vapor part, wherein a transit time of the discharged
stream through the flashline heater is at least approximately 8 seconds; and

equilibrating the temperature between the solid part and the vapor part during the at least approximately 8 seconds within
the flashline heater; and

a controller operatively coupled to the continuous take off device and a heat source configured to heat the discharged stream
in the flashline heater, wherein the controller is configured to control the transit time of the discharged stream in the
flashline heater by adjusting at least a flow rate of the discharged stream through the continuous take off device in relation
to an amount of the heat source directed to the flashline heater, such that the transit time is at least approximately 8 seconds.

US Pat. No. 9,303,106

PROCESSES FOR PREPARING SOLID METALLOCENE-BASED CATALYST SYSTEMS

Chevron Phillips Chemical...

1. A process to produce a catalyst composition, the process comprising:
(i) contacting an activator-support and a solid metallocene compound for a first period of time to form a precontacted mixture;
and

(ii) contacting the precontacted mixture with an organoaluminum compound for a second period of time to produce the catalyst
composition;

wherein an activity of the catalyst composition is from about 5% to about 100% greater than that of a catalyst system obtained
by using a solution of the metallocene compound instead of the solid metallocene compound, under the same polymerization conditions.

US Pat. No. 9,169,337

POLYMERS WITH IMPROVED ESCR FOR BLOW MOLDING APPLICATIONS

Chevron Phillips Chemical...

1. An ethylene polymer comprising a higher molecular weight component and a lower molecular weight component, wherein the
ethylene polymer has a density of greater than or equal to about 0.95 g/cm3, a melt index (MI) in a range from about 0.05 to about 1.5 g/10 min, a ratio of high load melt index to melt index (HLMI/MI)
in a range from about 40 to about 175, a bimodal molecular weight distribution, less than about 0.008 long chain branches
per 1000 total carbon atoms, a non-conventional comonomer distribution, and a slope of a plot of the viscosity (Pa-sec) versus
shear rate (sec?1) at 190° C. of the ethylene polymer at 100 sec?1 in a range from about 0.42 to about 0.65.
US Pat. No. 9,163,098

PROCESSES FOR PREPARING METALLOCENE-BASED CATALYST SYSTEMS

Chevron Phillips Chemical...

1. A process to produce a catalyst composition, the process comprising:
(i) contacting an activator-support and an organoaluminum compound for a first period of time to form a precontacted mixture;
and

(ii) contacting the precontacted mixture with a metallocene compound for a second period of time to form the catalyst composition;
wherein:

an activity of the catalyst composition is from about 15% to about 1000% greater than that of a catalyst system obtained by
first combining the activator-support and the metallocene compound, and then combining the organoaluminum compound, under
the same polymerization conditions.

US Pat. No. 9,303,110

BORON-BRIDGED BIS-INDENYL METALLOCENE CATALYST SYSTEMS AND POLYMERS PRODUCED THEREFROM

Chevron Phillips Chemical...

1. An olefin polymerization process, the process comprising:
contacting a catalyst composition with an olefin monomer and an optional olefin comonomer in a polymerization reactor system
under polymerization conditions to produce an olefin polymer, wherein the catalyst composition comprises a metallocene compound,
an activator, and an optional co-catalyst,

wherein the metallocene compound has the formula:
wherein:
M is Ti, Zr, or Hf;
each X independently is a monoanionic ligand;
InA is an indenyl group with an alkenyl substituent;

InB is an indenyl group; and

each R independently is H, a C1 to C36 hydrocarbyl group, or a C1 to C36 hydrocarbylsilyl group.

US Pat. No. 9,289,748

TREATER REGENERATION

Chevron Phillips Chemical...

1. A method of regenerating a desiccant in an off-line treater of a polyolefin production process, the method comprising a
heating phase followed by a cooling phase, the heating phase comprising:
treating a recycle stream of the polyolefin production process in an on-line treater to yield a treated recycle stream;
heating at least a portion of the treated recycle stream to yield a regenerating gas;
regenerating at least a portion of the desiccant in the off-line treater using the regenerating gas to yield a regenerating
effluent stream;

separating the regenerating effluent stream into an impurity stream and a regenerating recycle stream; and
recycling the regenerating recycle stream to the on-line treater.
US Pat. No. 9,284,391

POLYMER COMPOSITIONS HAVING IMPROVED BARRIER PROPERTIES

Chevron Phillips Chemical...

1. A dual-metallocene catalyzed bimodal polyethylene polymer having a higher molecular weight (HMW) component and a lower
molecular weight (LMW) component wherein the LMW component is present in an amount of from about 60% to about 90% based on
the total weight of the polymer and the HMW component is present in an amount of from about 10% to about 40% based on the
total weight of the polymer; a melt index of from about 0.5 g/10 min to about 4.0 g/10 min; a density of equal to or greater
than 0.96 g/cc; having a ratio of z-average molecular weight to weight average molecular weight of from about 3 to about 7;
which when formed into a 1-mil blown film displays a moisture vapor transmission rate as determined in accordance with ASTM
F 1249 at 1 mil, 100% humidity, and 100° F. ranging from equal to or greater than about 0 to equal to or about 20% greater
than X where X=k1 {?61.95377+39.52785(Mz/Mw)?8.16974(Mz/Mw)2+0.55114(Mz/Mw)3}+k2{?114.01555(?)+37.68575(Mz/Mw)(?)?2.89177(Mz/Mw)2(?)}+k3{120.37572(?)2?25.91177(Mz/Mw)2}+k4{18.03254(?)3}; Mw is from about 100 kg/mol to about 180 kg/moL; Mz is from about 300 kg/mol to about 1000 kg/mol; ? is from about 0.01 s to about 0.35 s; k1 is 1 g/100 in2·day: k2 is 1 g/100 in2·day·s; k3 is 1 g/100 in2·day·s2; k4 is 1 g/100 in2·day·s3; and ? is determined by small-strain oscillatory shear measurements at 190° C.

US Pat. No. 9,284,430

COMPONENT SEPARATIONS IN POLYMERIZATION

Chevron Phillips Chemical...

1. A process for component separation in a polymer production system, comprising:
separating a polymerization product stream into a gas stream and a polymer stream, wherein the gas stream comprises ethane,
unreacted ethylene, and unreacted hexane;

distilling the gas stream, in singe distillation column, into a light hydrocarbon stream and a bottoms stream, wherein the
light hydrocarbon stream comprises ethane and unreacted ethylene, wherein the bottoms stream comprises isobutane, and wherein
the bottoms stream is substantially olefin-free;

contacting the light hydrocarbon stream with an absorption solvent system, wherein at least a portion of the unreacted ethylene
from the light hydrocarbon stream is absorbed by the absorption solvent system; and

recovering a waste gas stream from the absorption solvent system, wherein the waste gas stream comprises ethane, hydrogen,
or combinations thereof.

US Pat. No. 9,169,333

DUAL METALLOCENE CATALYST SYSTEMS FOR DECREASING MELT INDEX AND INCREASING POLYMER PRODUCTION RATES

Chevron Phillips Chemical...

1. An olefin polymerization process, the process comprising:
contacting a catalyst composition with an olefin monomer and optionally an olefin comonomer under polymerization conditions
to produce an olefin polymer, wherein the catalyst composition comprises catalyst component I, catalyst component II, an activator-support
comprising a solid oxide treated with an electron-withdrawing anion, and an organoaluminum compound,

wherein a molar ratio of catalyst component I to catalyst component II in the catalyst composition is in a range from about
6:1 to about 75:1;

wherein a melt index (MI) of the olefin polymer produced by the process is at least 10% less than a MI of an olefin polymer
obtained under the same polymerization conditions without catalyst component II;

wherein catalyst component I comprises:
a compound having formula (C);
a compound having formula (D); or
any combination thereof, wherein:formula (C) is
wherein:
M3 is Zr or Hf;

X4 and X5 are independently F; Cl; Br, I; methyl; benzyl; phenyl; H; BH4; OBR2 or SO3R, wherein R is an alkyl or aryl group having up to 18 carbon atoms; or a hydrocarbyloxide group, a hydrocarbylamino group,
or a hydrocarbylsilyl group, any of which having up to 18 carbon atoms;

E3 is a bridging group selected from:

a cyclic or heterocyclic bridging group having up to 18 carbon atoms,
a bridging group having the formula >E3AR7AR8A, wherein E3A is C or Si, and R7A and R8A are independently H or a hydrocarbyl group having up to 18 carbon atoms,

a bridging group having the formula —CR7BR8B—CR7CR8C—, wherein R7B, R8B, R7C, and R8C are independently H or a hydrocarbyl group having up to 10 carbon atoms, or

a bridging group having the formula —SiR7DR8D—SiR7ER8E—, wherein R7D, R8D, R7E, and R8E are independently H or a hydrocarbyl group having up to 10 carbon atoms;

R9 and R10 are independently H or a hydrocarbyl group having up to 18 carbon atoms; and

Cp1 is a cyclopentadienyl or indenyl group, any substituent on Cp1 is H or a hydrocarbyl or hydrocarbylsilyl group having up to 18 carbon atoms; and
formula (D) is
wherein:
M4 is Zr or Hf;

X6 and X7 are independently F; Cl; Br, I; methyl; benzyl; phenyl; H; BH4; OBR2 or SO3R, wherein R is an alkyl or aryl group having up to 18 carbon atoms; or a hydrocarbyloxide group, a hydrocarbylamino group,
or a hydrocarbylsilyl group, any of which having up to 18 carbon atoms;

E4 is a bridging group selected from:

a cyclic or heterocyclic bridging group having up to 18 carbon atoms,
a bridging group having the formula >E4AR12AR13A, wherein E4A is C or Si, and R12A and R13A are independently H or a hydrocarbyl group having up to 18 carbon atoms,

a bridging group having the formula —CR12BR13B—CR12CR13C—, wherein R12B, R13B, R12C, and R13C are independently H or a hydrocarbyl group having up to 10 carbon atoms, or

a bridging group having the formula —SiR12DR13D—SiR12ER13E—, wherein R12D, R13D, R12E, and R13E are independently H or a hydrocarbyl group having up to 10 carbon atoms; and

R14, R15, R16, and R17 are independently H or a hydrocarbyl group having up to 18 carbon atoms; and

wherein catalyst component II comprises:

 a compound having the formula

 or any combination thereof, wherein:
M5 is Zr or Hf;

X8 and X9 are independently F; Cl; Br, I; methyl; benzyl; phenyl; H; BH4; OBR2 or SO3R, wherein R is an alkyl or aryl group having up to 18 carbon atoms; or a hydrocarbyloxide group, a hydrocarbylamino group,
or a hydrocarbylsilyl group, any of which having up to 18 carbon atoms;

Cp2 and Cp3 are independently a cyclopentadienyl or indenyl, any substituent on Cp2 and Cp3 is independently H or a hydrocarbyl group having up to 18 carbon atoms; and

E5 is a bridging group having the formula —(CH2)n—, wherein n is an integer from 2 to 8, inclusive.

US Pat. No. 9,115,225

CATALYST SYSTEMS FOR PRODUCTION OF ALPHA OLEFIN OLIGOMERS AND POLYMERS

Chevron Phillips Chemical...

1. A process for producing a product, the process comprising:
contacting a catalyst composition and an alpha olefin monomer comprising a C4 to C60 alpha olefin to produce the product, the catalyst composition comprising:

(i) an N,N-bis[2-hydroxidebenzyl]amine compound having formula (Ia):

wherein:
M is Ti, Zr, or Hf;
X1 and X2 independently are a monoanionic ligand;

each RB and RC independently is a halide, a C1 to C36 hydrocarbyl group, a C1 to C36 halogenated hydrocarbyl group, a C1 to C36 hydrocarboxy group, or a C1 to C36 hydrocarbylsilyl group, wherein p and q independently are 0, 1, 2, 3, or 4; and

RA is a C1 to C36 hydrocarbyl group or C1 to C36 halogenated hydrocarbyl group;

(ii) an activator-support comprising a solid oxide treated with an electron-withdrawing anion; and
(iii) optionally, a co-catalyst.

US Pat. No. 9,404,029

RHEOLOGY MODIFIERS

Chevron Phillips Chemical...

1. A method of servicing a wellbore within a subterranean formation comprising:
placing in the wellbore a composition comprising an oleaginous fluid and a rheology modifier,
wherein the oleaginous fluid is selected from the group consisting of hydrocarbons, olefins, internal olefin based oils, mineral
oil, kerosene, diesel oil, fuel oil, synthetic oil, linear or branched paraffins, esters, acetals, mixtures of crude oil,
derivatives thereof, and combinations thereof,

wherein the rheology modifier comprises a reaction product of a polysulfide, a dimer acid and a polyfunctional amine,
wherein the rheology modifier is present in the composition in an amount of from about 0.02 wt. % to about 2.2 wt. % based
on the total weight of the composition, and

wherein the composition has a flat rheology.

US Pat. No. 9,394,383

MONOMER/DILUENT RECOVERY

Chevron Phillips Chemical...

1. A polymerization process comprising;
producing a polymerization product;
recovering a vapor phase from the polymerization product;
fractionating the vapor phase in a first column to yield a fraction stream;
fractionating the fraction stream in a second column;
emitting a first stream and a second stream from the second column, wherein the first stream comprises a diluent and is substantially
olefin-free, and wherein the second stream comprises an olefin monomer, the diluent, and hydrogen;

recycling at least a portion of the diluent of the first stream to a first polymerization reactor; and
recycling at least a portion of the diluent, at least a portion of the olefin monomer, and at least a portion of the hydrogen
of the second stream to a second polymerization reactor.

US Pat. No. 9,284,389

BIMODAL RESINS HAVING GOOD FILM PROCESSABILITY

CHEVRON PHILLIPS CHEMICAL...

1. A bimodal polyethylene copolymer comprising a lower molecular weight (LMW) component and a higher molecular weight (HMW)
component, the copolymer having a z-average molecular weight (Mz) of from about 1,000 kg/mol to about 2,500 kg/mol, a weight fraction of the LMW component (LMW fr.) of from about 0.60 to
0.85, a ratio of a weight average molecular weight (Mw) of the HMW component (HMW Mw) to a Mw of the LMW component (LMW Mw) of from about 14 to about 25, a zero shear viscosity (?0) of from about 5×105 Pa-s to about 1×107 Pa-s and a HMW Mw of from about 800 kg/mol to about 1,500 kg/mol, wherein the copolymer is prepared using a residence time in a polymerization
reactor of equal to or greater than about 30 minutes.

US Pat. No. 9,469,702

CATALYST SYSTEMS CONTAINING BORON-BRIDGED CYCLOPENTADIENYL-FLUORENYL METALLOCENE COMPOUNDS WITH AN ALKENYL SUBSTITUENT

Chevron Phillips Chemical...

1. A catalyst composition comprising a metallocene compound, an activator, and an optional co-catalyst, wherein the metallocene
compound has the formula:
wherein:
M is Ti, Zr, or Hf;
each X independently is a monoanionic ligand;
CpA is a cyclopentadienyl group with an alkenyl substituent;

CpB is a fluorenyl group; and

each R independently is H, a C1 to C36 hydrocarbyl group, or a C1 to C36 hydrocarbylsilyl group.

US Pat. No. 9,469,607

POLYTHIOLS WITH CARBAMATE GROUPS

Chevron Phillips Chemical...

1. A polythiol composition comprising sulfur-containing compounds having formula (I):

each R independently is a C3 to C15 hydrocarbon group;

each R1 independently is a C1 to C30 hydrocarbon group;

n is an integer greater than or equal to 2; and
m is an integer from 0 to 6, wherein an average value of m in the composition is from greater than 0 to 3.

US Pat. No. 9,447,264

SYSTEM AND METHOD FOR CLOSED RELIEF OF A POLYOLEFIN LOOP REACTOR SYSTEM

Chevron Phillips Chemical...

1. A system, comprising:
a loop reactor comprising a settling leg or a continuous take-off;
a pressure relief valve coupled to the loop reactor; and
a flash chamber configured to receive a discharge stream from the settling leg or the continuous take-off of the loop reactor
at least during operation of the loop reactor at a pressure below a threshold pressure, wherein the flash chamber is communicatively
coupled with the pressure relief valve such that activation of the pressure relief valve in response to the pressure of the
loop reactor exceeding the threshold pressure results in a discharge of a slurry from the loop reactor to the flash chamber
through the pressure relief valve.

US Pat. No. 9,416,087

METHODS FOR THE PRODUCTION OF ?,?-UNSATURATED CARBOXYLIC ACIDS AND SALTS THEREOF

Chevron Phillips Chemical...

5. A process for producing an ?,?-unsaturated carboxylic acid, or a salt thereof, the process comprising:
(1) contacting
(a) a metallalactone;
(b) a diluent; and
(c) a solid oxide;
(2) forming an adduct of an ?,?-unsaturated carboxylic acid adsorbed onto the solid oxide; and
(3) contacting the adduct adsorbed onto the solid oxide with an acid to produce the ?,?-unsaturated carboxylic acid, or the
salt thereof.

US Pat. No. 9,394,385

POLYMER COMPOSITIONS AND METHODS OF MAKING AND USING SAME

Chevron Phillips Chemical...

1. A method of preparing a polymer pipe comprising:
obtaining a polymer prepared by contacting ethylene and a comonomer with a catalyst composition comprising at least one imine
(bis) phenolate compound and at least one metallocene compound under conditions suitable for the formation of the polymer,
wherein the polymer comprises at least a first component having a polydispersity index of greater than about 20 and present
in an amount of from about 1 wt % to about 99 wt % based on the total weight of the polymer and a second component having
a polydispersity index of less than about 20 and present in an amount of from about 1 wt % to about 99 wt % based on the total
weight of the polymer, wherein a molecular weight distribution of the second component is encompassed by a molecular weight
distribution of the first component and wherein the polymer has greater than about 75% of branching contained within the second
component, and

wherein the polymer has zero shear viscosity of from about 1E+03 Pa-s to about 1E+10 Pa-s and a tensile natural draw ratio
of less than about 600%; and fabricating the polymer into a pipe, wherein the pipe has a PENT value of greater than about
800 hours as determined in accordance with ASTM F1473 using a 3.8 MPa stress.

US Pat. No. 9,394,387

SYNTHESIS OF ARYL COUPLED BIS PHENOXIDES AND THEIR USE IN OLEFIN POLYMERIZATION CATALYST SYSTEMS WITH ACTIVATOR-SUPPORTS

Chevron Phillips Chemical...

1. A method of making a transition metal bis(phenolate) compound having the formula:
the method comprising:
(i) contacting a phenol compound having the formula:

 with
(a) zinc metal;
(b) a zinc-containing transfer agent; or
(c) a halogen transfer agent and a zinc transfer compound;in the presence of a reaction solvent to form a first mixture;
(ii) contacting the first mixture with a palladium cross-coupling catalyst system and a substituted or unsubstituted, saturated
or unsaturated, C4 to C8 heterocyclic compound having the formula:


to form a ligand reaction mixture comprising a bis(phenol) ligand compound having formula (II):

 and
(iii) contacting the ligand compound having formula (II) with M(X)(X)(X)(X), optionally in the presence of a second solvent,
to form a transition metal compound reaction mixture comprising the transition metal bis(phenol) compound having formula (I);
wherein:

R2, R3, R4, and R5 independently are H or a C1 to C18 hydrocarbyl or halogenated hydrocarbyl group;


 is a substituted or unsubstituted, saturated or unsaturated, C4 to C8 heterocyclic group, wherein each RA independently is a C1 to C18 hydrocarbyl or halogenated hydrocarbyl group, and m is 0, 1, 2, or 3;

each XA independently is Cl, Br, or I;

M is Ti, Zr, or Hf;
each X independently is a monoanionic ligand; and
each L independently is a neutral ligand, wherein n is 0, 1 or 2.
US Pat. No. 9,387,467

AROMATIZATION CATALYSTS WITH HIGH SURFACE AREA AND PORE VOLUME

Chevron Phillips Chemical...

1. A catalyst comprising:
(i) a barium exchanged zeolitic support, wherein the zeolitic support comprises a large pore zeolite having an average pore
diameter in a range of from about 7 Å to about 12 Å and from about 5 wt. % to about 30 wt. % binder, based on the total weight
of the zeolitic support; and

(ii) a Group VIII transition metal; wherein:
the catalyst has a surface area in a range from about 165 to about 225 m2/g; and

the catalyst is substantially free of fluorine.

US Pat. No. 9,340,629

POLYETHYLENE PRODUCTION WITH MULTIPLE POLYMERIZATION REACTORS

Chevron Phillips Chemical...

1. A method of operating a polyethylene reactor system, the method comprising:
polymerizing ethylene on a catalyst in a first polymerization reactor to form intermediate particles having the catalyst and
a first polyethylene;

discharging the intermediate particles from the first polymerization reactor to a second polymerization reactor;
polymerizing ethylene on the catalyst in the intermediate particles in the second polymerization reactor to form product particles
having the catalyst, the first polyethylene, and the second polyethylene;

discharging the product particles from the second polymerization reactor; and
controlling a particle size of the product particles by adjusting a residence time of the catalyst through the first polymerization
reactor and/or the second polymerization reactor,

wherein adjusting the residence time of the catalyst comprises adjusting a rate of a diluent feed stream to the first polymerization
reactor.

US Pat. No. 9,303,109

CATALYST SYSTEMS CONTAINING BORON-BRIDGED CYCLOPENTADIENYL-FLUORENYL METALLOCENE COMPOUNDS WITH AN ALKENYL SUBSTITUENT

Chevron Phillips Chemical...

1. An olefin polymerization process, the process comprising:
contacting a catalyst composition with an olefin monomer and an optional olefin comonomer in a polymerization reactor system
under polymerization conditions to produce an olefin polymer, wherein the catalyst composition comprises a metallocene compound,
an activator, and an optional co-catalyst,

wherein the metallocene compound has the formula:

 wherein:
M is Ti, Zr, or Hf;
each X independently is a monoanionic ligand;
CpA is a cyclopentadienyl group with an alkenyl substituent;

CpB is a fluorenyl group; and

each R independently is H, a C1 to C36 hydrocarbyl group, or a C1 to C36 hydrocarbylsilyl group.

US Pat. No. 9,303,099

METHODS OF CONTROLLING DUAL CATALYST OLEFIN POLYMERIZATIONS WITH AN ALCOHOL COMPOUND

Chevron Phillips Chemical...

1. A method of controlling a polymerization reaction in a polymerization reactor system, the method comprising:
(i) contacting a dual catalyst system with ethylene and a C3-C10 alpha-olefin comonomer in the polymerization reactor system under polymerization conditions to produce an ethylene copolymer,

wherein the dual catalyst system comprises a first metallocene catalyst component, a second metallocene catalyst component,
an activator, and a co-catalyst;

wherein the polymerization reactor system comprises a slurry reactor, a gas-phase reactor, a solution reactor, or a combination
thereof; and

(ii) introducing an amount of an alcohol compound into the polymerization reactor system to (I) reduce a melt index parameter
of the ethylene copolymer; (II) increase a molecular weight parameter of the ethylene copolymer selected from Mw, Mz, or both;
or (III) reduce a melt index parameter of the ethylene copolymer and increase a molecular weight parameter of the ethylene
copolymer selected from Mw, Mz, or both.

US Pat. No. 9,365,667

METHODS FOR PRODUCING FLUORIDED-CHLORIDED SILICA-COATED ALUMINA ACTIVATOR-SUPPORTS AND CATALYST SYSTEMS CONTAINING THE SAME

Chevron Phillips Chemical...

1. A catalyst composition comprising:
an activator-support comprising a fluorided-chlorided silica-coated alumina, the fluorided-chlorided silica-coated alumina
comprising from about 3 to about 10 wt. % F and from about 2 to about 7 wt. % Cl, based on the weight of the fluorided-chlorided
silica-coated alumina;

a metallocene compound; and
optionally, a co-catalyst; wherein:
a catalyst activity of the catalyst composition is greater than that of a catalyst system containing a fluorided silica-coated
alumina, under the same polymerization conditions.

US Pat. No. 9,289,955

SYSTEM AND METHOD FOR CREATING HIGH GLOSS PLASTIC ITEMS VIA THE USE OF STYRENIC COPOLYMERS AS A COEXTRUDED LAYER

Chevron Phillips Chemical...

12. A method of manufacturing a plastic article, comprising:
performing a melting and coextrusion process in which a first material, a second material, and a third material are individually
melted and subsequently combined in a coextrusion die to produce the plastic article such that the plastic article comprises:

a first layer comprising the first material, wherein the first material comprises a high density polyethylene (HDPE);
a second layer comprising the second material, wherein the second material comprises a styrene butadiene copolymer comprising
greater than about 50% styrenic monomer, by weight, wherein the first layer is disposed on the second layer to form a multilayer
plastic structure, wherein the second layer forms an outer surface of the multilayer plastic structure, and wherein the outer
surface has a static coefficient of friction of less than 0.44 with another surface formed from the second material due to
the chemical composition of the second material and not due to the presence of a static coefficient of friction-affecting
additive; and

a third layer comprising the third material, disposed between the first layer and the second layer, and wherein the third
material comprises a blend of the first material and the second material.

US Pat. No. 9,227,890

HYDROCARBON RECOVERY WITH PRESSURE SWING ADSORPTION

Chevron Phillips Chemical...

1. A process for hydrocarbon recovery, the process comprising:
(a) providing a hydrocarbon stream comprising a first hydrocarbon and a second hydrocarbon, wherein the first hydrocarbon
is a saturated hydrocarbon, and wherein the second hydrocarbon is an olefin;

(b) contacting at least a portion of the hydrocarbon stream with a purged hydrocarbon adsorber to yield a loaded hydrocarbon
adsorber and a non-adsorbed gas stream, wherein at least a portion of the first hydrocarbon is adsorbed by the purged hydrocarbon
adsorber at a first pressure to yield adsorbed first hydrocarbon, and wherein the non-adsorbed gas stream comprises recovered
second hydrocarbon, wherein the recovered second hydrocarbon comprises at least a portion of the second hydrocarbon of the
hydrocarbon stream, wherein the hydrocarbon adsorber is characterized by an adsorption selectivity of the first hydrocarbon
versus the second hydrocarbon as determined by volumetric adsorption at 298 K and at the first pressure of equal to or greater
than about 2;

(c) contacting at least a portion of the loaded hydrocarbon adsorber with a sweeping gas stream at a second pressure to yield
an unloaded hydrocarbon adsorber and a recovered adsorbed gas stream, wherein the recovered adsorbed gas stream comprises
at least a portion of the sweeping gas stream and at least a portion of desorbed first hydrocarbon, wherein the desorbed first
hydrocarbon comprises at least a portion of the adsorbed first hydrocarbon, and wherein the first pressure is greater than
the second pressure by equal to or greater than about 400 kPa; and

(d) contacting at least a portion of the unloaded hydrocarbon adsorber with at least a portion of the sweeping gas stream
at the first pressure to yield the purged hydrocarbon adsorber and a spent sweeping gas.

US Pat. No. 9,273,159

METALLOCENE AND HALF SANDWICH DUAL CATALYST SYSTEMS FOR PRODUCING BROAD MOLECULAR WEIGHT DISTRIBUTION POLYMERS

Chevron Phillips Chemical...

1. A catalyst composition capable of producing an ethylene polymer having a ratio of high load melt index to melt index in
a range from about 30 to about 350, the catalyst composition comprising:
catalyst component I comprising a zirconium or hafnium based metallocene compound;
catalyst component II comprising a titanium based half-metallocene compound having formula (IIA):

wherein:
InA is a substituted or unsubstituted indenyl group; and

X1, X2, and X3 independently are a monoanionic ligand;

an activator; and
optionally, a co-catalyst.
US Pat. No. 9,102,821

CATALYSTS FOR PRODUCING BROAD MOLECULAR WEIGHT DISTRIBUTION POLYOLEFINS IN THE ABSENCE OF ADDED HYDROGEN

Chevron Phillips Chemical...

1. An ethylene polymer having:
a Mn in a range from about 9,000 to about 30,000 g/mol;
a ratio of Mw/Mn in a range from about 4 to about 20;
a bimodal molecular weight distribution; and
a number of SCB per 1000 total carbon atoms that is greater at Mn than at Mw.

US Pat. No. 9,266,974

PUMPING APPARATUS AND PROCESS FOR POLYMERIZATION IN LOOP REACTORS

Chevron Phillips Chemical...

1. A loop slurry polymerization process comprising:
introducing a monomer and catalyst to a loop reactor;
polymerizing the monomer to form a slurry comprising solid polyolefin particles in a liquid medium;
circulating the slurry using two impellers;
imparting a first rotational motion to the slurry with a first of the impellers;
imparting a second rotational motion to the slurry with a second of the impellers, wherein the second rotational motion is
opposite to the first rotational motion.

US Pat. No. 9,550,869

STYRENE BUTADIENE BLOCK COPOLYMERS FOR FILM APPLICATIONS

Chevron Phillips Chemical...

1. A monovinylarene-conjugated diene block copolymer formed through a charge order selected from the group consisting of:
i-A-C-C-C-C-B-CA, i-A-i-C-C-C-C-B-CA, and i-A-i-C-C-C-C-C-B-CA, wherein:
i is a polymerization initiator charge;
A is a monovinylarene charge comprising from about 10 phm to about 40 phm monovinylarene units;
B is a conjugated diene charge comprising from about 5 phm to about 50 phm conjugated diene units;
C is a monovinylarene-conjugated diene charge, each C comprising a weight ratio of conjugated diene units to monovinylarene
units from about 0.05 to about 0.33; and

CA is a coupling agent charge.
US Pat. No. 9,371,407

CATALYST SYSTEM WITH THREE METALLOCENES FOR PRODUCING BROAD MOLECULAR WEIGHT DISTRIBUTION POLYMERS

Chevron Phillips Chemical...

1. A catalyst composition comprising:
catalyst component I comprising an unbridged zirconium or hafnium based metallocene compound and/or an unbridged zirconium
and/or hafnium based dinuclear metallocene compound;

catalyst component II comprising a bridged zirconium based metallocene compound with a fluorenyl group, and with no aryl groups
on the bridging group;

catalyst component III comprising a bridged zirconium or hafnium based metallocene compound with a fluorenyl group, and an
aryl group on the bridging group;

an activator; and
optionally, a co-catalyst; wherein
the catalyst composition is capable of producing an ethylene polymer having a unimodal molecular weight distribution.

US Pat. No. 9,266,793

ACID-CATALYZED OLEFIN OLIGOMERIZATIONS

Chevron Phillips Chemical...

1. A process comprising:
(i) contacting a monomer comprising at least 50 wt. % linear internal olefins with a solid acid catalyst comprising a sulfonated
styrene-divinylbenzene copolymer acid resin; and

(ii) oligomerizing the monomer to form an oligomer product.
US Pat. No. 10,183,284

AROMATIZATION CATALYSTS WITH HIGH SURFACE AREA AND PORE VOLUME

Chevron Phillips Chemical...

1. A reforming process comprising:contacting a hydrocarbon feed with a supported aromatization catalyst under reforming conditions in a reactor system to produce an aromatic product; wherein the supported aromatization catalyst comprises:
(i) a barium exchanged zeolitic support, wherein the zeolitic support comprises a large pore zeolite having an average pore diameter in a range of from about 7 ? to about 12 ? and from about 5 wt. % to about 30 wt. % binder, based on the total weight of the zeolitic support; and
(ii) a Group VIII transition metal; wherein:
the supported aromatization catalyst has a surface area in a range from about 165 to about 225 m2/g, and
the supported aromatization catalyst is substantially free of fluorine.

US Pat. No. 10,183,960

PERFLUOROHYDROCARBYL-N2-PHOSPHINYL AMIDINE COMPOUNDS, CHROMIUM SALT COMPLEXES, CATALYST SYSTEMS, AND THEIR USE TO OLIGOMERIZE ETHYLENE

Chevron Phillips Chemical...

1. A catalyst system comprising an N2-phosphinylamidine chromium salt complex having Structure PFHNPACr I:wherein Rf1, Rf2, Rf4, and Rf5 are independently selected from a perfluorohydrocarbyl group; andCrXp is a chromium salt; X is a monoanion, and p is an integer from 2 to 6.
US Pat. No. 10,183,899

NORMAL ALPHA OLEFIN SYNTHESIS USING METATHESIS AND DEHYDROFORMYLATION

Chevron Phillips Chemical...

14. A process comprising:(a) contacting a linear internal olefin having the structure CH3(CH2)pHC?CH(CH2)qCH3 with a hydroformylation catalyst system, carbon monoxide, and hydrogen to form a linear aldehyde having the formula CH3(CH2)p+q+3C(?O)H; and
(b) contacting the linear aldehyde with a dehydroformylation catalyst system comprising i) a transition metal compound, a diphosphine, and a carboxylic acid or carboxylic acid derivative, or ii) a diphosphine transition metal compound complex and a carboxylic acid or carboxylic acid derivative, to form a normal alpha olefin having the structure CH3(CH2)p+q+1HC?CH2;
wherein p and q independently are an integer from 0 to 15.

US Pat. No. 9,809,510

HIGHLY BRANCHED HYDROCARBON ISOMERIZATION FOR AN AROMATIZATION REACTION

Chevron Phillips Chemical...

1. A process for aromatizing hydrocarbons comprising:
converting at least a portion of highly branched hydrocarbons in a feed stream into selectively convertible components by
contacting the feed stream with an isomerization catalyst in an isomerization reactor system under isomerization reaction
conditions and isomerizing the portion of the highly branched hydrocarbons in the feed stream into the selectively convertible
components; and

aromatizing the selectively convertible components to produce an aromatization reactor effluent, wherein the aromatization
reactor effluent comprises an aromatic product, wherein the isomerization catalyst comprises a ? zeolite and wherein the highly
branched hydrocarbons comprise hydrocarbons having six or seven carbon atoms with an internal quaternary carbon or hydrocarbons
having six carbon atoms and two adjacent internal tertiary carbons, or mixtures thereof.

US Pat. No. 9,550,841

METHODS OF PREPARATION OF AN OLEFIN OLIGOMERIZATION CATALYST

Chevron Phillips Chemical...

1. A method of making a catalyst for use in oligomerizing an olefin, the catalyst comprising a chromium-containing compound,
a pyrrole-containing compound, a metal alkyl, a halide-containing compound, and optionally a solvent, the method comprising:
abating all or a portion of water from a composition comprising the chromium-containing compound by contacting the composition
comprising the chromium-containing compound with an azeotropic solvent to form a solution and subjecting the solution to an
azeotropic distillation.

US Pat. No. 9,328,280

ADDITIVES FOR OIL-BASED DRILLING FLUIDS

Chevron Phillips Chemical...

1. An additive for an oil-based wellbore treatment fluid, the additive comprising:
a ground sulfonated asphalt compound comprising particles having a D10, D50 and D90 particle size distribution as determined
by standard particle size measurements wherein:

the D10 particle size is less than about 30 ?m,
the D50 particle size is less than about 50 ?m, and
the D90 particle size is less than about 215 ?m;
wherein the ground sulfonated asphalt is included in the wellbore treatment fluid in an amount of from about 0.1 lbs/bbl to
about 15 lbs/bbl,

such that the wellbore treatment fluid with the additive has a yield point (YP) of from about 1 lb/100 ft2 to about 50 lb/100 ft2.

US Pat. No. 10,046,501

SYSTEM AND METHOD FOR POLYMER EXTRUSION

Chevron Phillips Chemical...

1. A polyolefin extrusion system, comprising:an extrusion gear pump to receive a narrow molecular weight distribution polyolefin from a polyolefin manufacturing system;
a motor of the extrusion gear pump configured to drive the extrusion gear pump;
a pressure sensor configured to generate a pressure signal indicative of a suction pressure into the extrusion gear pump;
an automation controller configured to generate an output signal based on the pressure signal;
a variable speed drive configured to control operation of the motor;
a distributed control system (DCS) comprising a mismatch interlock module; and
an additional pressure sensor to provide an additional pressure signal indicative of the suction pressure to the DCS, wherein the DCS is configured to compare the pressure signal and the additional pressure signal to control the mismatch interlock module.

US Pat. No. 10,040,882

LIQUID-SOLID SAMPLING SYSTEM FOR A LOOP SLURRY REACTOR

Chevron Phillips Chemical...

1. A process for operating a polymerization reactor system, the process comprising:(I) contacting a transition metal-based catalyst system with an olefin monomer and an optional olefin comonomer in a loop slurry reactor within the polymerization reactor system under polymerization reaction conditions to produce an olefin polymer, the loop slurry reactor containing a liquid-solid mixture;
(II) measuring a property of the liquid in the loop slurry reactor via a method comprising the steps of:
(i) withdrawing a sample of the liquid-solid mixture from the loop slurry reactor;
(ii) flowing the sample of the liquid-solid mixture through a vertical settling tube;
(iii) periodically stopping the flow of the sample of the liquid-solid mixture in the tube for a time period sufficient for the solid to settle to a bottom portion of the tube and for the liquid to occupy an upper portion of the tube;
(iv) removing a small fraction of the liquid in the upper portion of the tube and transferring the small fraction of the liquid to an analytical instrument for measuring the property of the liquid, wherein the analytical instrument comprises a chromatograph, a spectrometer, or a combination thereof;
(v) restoring flow through the tube; and
(vi) returning an unused fraction of the sample of the liquid-solid mixture to the loop slurry reactor; and
(III) when the property of the liquid in the loop slurry reactor has reached a predetermined level, adjusting a polymerization reaction condition.
US Pat. No. 9,944,661

OLEFIN HYDROBORATION

Chevron Phillips Chemical...

1. A process comprising contacting:a) a linear internal alkene,
b) a hydrogen-boron bond containing compound,
c) an ?-diimine metal salt complex comprising an ?-diimine iron salt complex or an ?-diimine cobalt salt complex, and
d) a group 1 metal borohydride to form a linear terminal alkylboron compound under conditions suitable to form the linear terminal alkylboron compound.

US Pat. No. 9,469,698

PROCESS FOR FORMING POLYOLEFINS

Chevron Phillips Chemical...

1. A process of forming polyolefins comprising:
introducing olefin monomer selected from C2-C3 olefins into a first reaction zone under first polymerization conditions to form a first polyolefin;

withdrawing a transfer effluent from the first reaction zone, the transfer effluent comprising first polyolefin and unreacted
olefin monomer;

introducing the transfer effluent, a comonomer selected from C4-C8 olefins, and additional olefin monomer to a second reaction zone under second polymerization conditions to form a second reactor
product;

maintaining an essentially constant comonomer:olefin monomer ratio in the second reaction zone; and
withdrawing at least a portion of the second reactor product, wherein the second reactor product comprises a bimodal polyolefin.

US Pat. No. 9,441,061

POLYMER FILMS HAVING IMPROVED HEAT SEALING PROPERTIES

Chevron Phillips Chemical...

1. A film comprising an ethylene alpha-olefin copolymer having:
(a) a density in the range of less than about 0.945 g/cc, as determined according to ASTM D1505;
(b) a melt index in the range of from greater than about 0.5 g/10 min to about 3 g/10 min, as determined according to ASTM
D1238, Condition 190° C./2.16 kg;

(c) a molecular weight distribution of from about 3.4 to about 12, as determined by gel permeation chromatography;
(d) a weight average molecular weight of from greater than about 85 kg/mol to about 160 kg/mol, as determined by gel permeation
chromatography;

(e) a z-average molecular weight of from greater than about 210 kg/mol to about 500 kg/mol, as determined by gel permeation
chromatography;

(f) a ratio of high load melt index to melt index of from about 16 to about 30;
(g) a number average molecular weight of from about 7 kg/mol to about 50 kg/mol; and
(h) at least a first peak and a second peak when subjected to analytical temperature rising elution fractionation.
US Pat. No. 9,174,895

METHODS OF REGENERATING AROMATIZATION CATALYSTS

Chevron Phillips Chemical...

1. A method of treating a spent catalyst comprising a transition metal and a catalyst support, the method comprising:
(1) contacting the spent catalyst with a chlorine-containing stream comprising a chlorine-containing compound to produce a
chlorinated spent catalyst;

(2) contacting the chlorinated spent catalyst with a fluorine-containing stream comprising a fluorine-containing compound
to produce a chlorinated-fluorinated spent catalyst; and

(3) contacting the chlorinated-fluorinated spent catalyst with a decoking gas stream comprising oxygen;
wherein the spent catalyst comprises from about 0.1 wt. % to about 10 wt. % transition metal, based on the weight of the spent
catalyst excluding carbon.

US Pat. No. 9,156,970

HIGHER DENSITY POLYOLEFINS WITH IMPROVED STRESS CRACK RESISTANCE

Chevron Phillips Chemical...

1. An ethylene polymer having a density from about 0.930 to about 0.948 g/cm3, a zero-shear viscosity greater than about 5×105 Pa-sec, a CY-a parameter in a range from about 0.01 to about 0.40, a peak molecular weight (Mp) in a range from about 30,000
to about 130,000 g/mol, a bimodal molecular weight distribution, and a reverse comonomer distribution.
US Pat. No. 9,840,571

INERT STRIPPING OF VOLATILE ORGANIC COMPOUNDS FROM POLYMER MELTS

Chevron Phillips Chemical...

1. A method of removing volatile organic compounds (VOCs) from a molten polymer comprising:
(a) polymerizing monomers in a reactor to produce a reaction mixture comprising unreacted monomers and the molten polymer;
(b) removing a portion of the unreacted monomers from at least a portion of the reaction mixture to produce recovered monomers
and a degassed molten polymer, wherein the degassed molten polymer comprises VOCs;

(c) contacting at least a portion of the degassed molten polymer with an inert stripping agent at a pressure equal to or greater
than about atmospheric pressure to produce a stripped molten polymer and a spent stripping agent, wherein the inert stripping
agent is insoluble in the degassed molten polymer, and wherein the spent stripping agent comprises at least a portion of the
inert stripping agent and at least a portion of the VOCs from the degassed molten polymer; and

(d) cooling at least a portion of the stripped molten polymer and forming polymer pellets.
US Pat. No. 9,493,589

POLYMERS WITH IMPROVED ESCR FOR BLOW MOLDING APPLICATIONS

Chevron Phillips Chemical...

1. An ethylene polymer having a density of greater than or equal to about 0.954 g/cm3, a high load melt index (HLMI) in a range from about 10 to about 45 g/10 min, a ratio of high load melt index to melt index
(HLMI/MI) in a range from about 175 to about 600, a slope of a plot of the viscosity (in Pa-sec) versus shear rate (in sec?1) of the ethylene polymer at 100 sec?1 in a range from about 0.15 to about 0.30, and an environmental stress crack resistance (ESCR, 10% igepal) of greater than
or equal to about 800 hours; wherein:
the ethylene polymer comprises a high molecular weight component and a low molecular weight component;
the high molecular weight component has a Mw in a range from about 1,000,000 to about 1,500,000 g/mol, and a ratio of Mw/Mn
in a range from about 1.8 to about 2.7; and

the low molecular weight component has a Mw in a range from about 50,000 to about 80,000 g/mol, and a ratio of Mz/Mw in a
range from about 1.6 to about 2.5.

US Pat. No. 9,493,592

PROCESSES FOR PREPARING METALLOCENE-BASED CATALYST SYSTEMS

Chevron Phillips Chemical...

1. A process to produce a dual metallocene catalyst composition, the process comprising:
(A) contacting an activator-support and an organoaluminum compound for a first period of time to form a precontacted mixture;
(B) contacting the precontacted mixture with a first metallocene compound for a second period of time to form a first mixture;
and

(C) contacting the first mixture with a second metallocene compound for a third period of time to form the dual metallocene
catalyst composition;

wherein an activity of the dual metallocene catalyst composition is greater than that of a dual catalyst system obtained by
combining the activator-support, a mixture of the first metallocene compound and the second metallocene compound, and the
organoaluminum compound, under the same polymerization conditions.

US Pat. No. 9,441,090

METHODS FOR CONTROLLING HARDNESS OF STYRENE-BUTADIENE BLOCK COPOLYMERS

Chevron Phillips Chemical...

1. A method of controlling a conjugated diene monovinylarene copolymerization reaction, the method comprising:
(i) contacting a monovinylarene monomer, a conjugated diene monomer, and an initiator in a predetermined sequence under polymerization
conditions in a polymerization reactor system, and thereafter coupling and/or terminating to form a conjugated diene monovinylarene
block copolymer;

wherein the predetermined sequence comprises a dual charge of the monovinylarene monomer and the conjugated diene monomer;
and

(ii) introducing a modifier into the polymerization reactor system before the dual charge to control a Shore A hardness of
the copolymer, wherein the Shore A hardness of the copolymer decreases as an amount of the modifier introduced into the polymerization
reactor system increases, and wherein the Shore A hardness of the copolymer is in a range from about 20 to about 95.

US Pat. No. 9,181,372

CATALYST SYSTEM WITH THREE METALLOCENES FOR PRODUCING BROAD MOLECULAR WEIGHT DISTRIBUTION POLYMERS

Chevron Phillips Chemical...

1. An olefin polymerization process, the process comprising:
contacting a catalyst composition with an olefin monomer and an olefin comonomer under polymerization conditions to produce
an olefin polymer, wherein the catalyst composition comprises catalyst component I, catalyst component II, catalyst component
III, an activator, and an optional co-catalyst, wherein:

the olefin polymer has a non-bimodal molecular weight distribution and a ratio of HLMI/MI in a range from about 50 to about
500;

catalyst component I comprises an unbridged zirconium or hafnium based metallocene compound and/or an unbridged zirconium
and/or hafnium based dinuclear metallocene compound;

catalyst component II comprises a bridged zirconium based metallocene compound with a fluorenyl group, and with no aryl groups
on the bridging group; and

catalyst component III comprises a bridged zirconium or hafnium based metallocene compound with a fluorenyl group, and an
aryl group on the bridging group.

US Pat. No. 10,072,103

UNIFIED COOLING FOR MULTIPLE POLYOLEFIN POLYMERIZATION REACTORS

Chevron Phillips Chemical...

1. A method of controlling reactor temperature during startup conditions, comprising:splitting a first control feed system into at least (1) a first heat exchanger zone feed stream through a first heat exchanger zone to produce a first heat exchanger zone output stream and (2) a first heat exchanger zone bypass stream;
combining the first heat exchanger zone output stream and the first heat exchanger zone bypass stream to give a first treated stream having a first treated stream temperature;
recycling a first return stream comprising the first treated stream after the first treated stream has exchanged energy with a first polyolefin reactor;
splitting a second control feed stream into at least (1) a second heat exchanger zone feed stream through a second heat exchanger zone to produce a second heat exchanger zone output stream and (2) a second heat exchanger zone bypass stream;
combining the second heat exchanger zone output stream and the second heat exchanger zone bypass stream to give a second treated stream having a second treated stream temperature;
recycling a second return stream comprising the second treated stream after the second treated stream has exchanged energy with a second polyolefin reactor;
combining the first and second return streams to form a combined return stream;
processing the combined return stream through shared system equipment to form a shared output stream; and
splitting the shared output stream into the first control feed and the second control feed,
wherein the first heat exchanger zone feed stream, first heat exchanger zone bypass stream, second heat exchanger zone feed stream, second heat exchanger zone bypass stream, first treated stream, second treated stream, and combined return stream are connected in a closed loop, hydraulically full system.

US Pat. No. 9,469,582

POLYOLEFIN MANUFACTURING SYSTEM INCLUDING A MEMBRANE FRACTIONATION SYSTEM FOR DILUENT RECOVERY

Chevron Phillips Chemical...

1. A method for recovering diluent from polymerization reactor effluent, the method comprising:
separating effluent from a polymerization reactor into extracted polyolefin solids, a first stream including primarily diluent
and heavy components, and a second stream including primarily the diluent and light components;

fractionating the first stream in a heavies fractionation column to produce a first discharge stream including primarily the
heavy components and a second discharge stream including primarily the diluent; and

separating the second stream in a membrane separation system to produce a diluent enriched stream including primarily the
diluent and a lights enriched stream including primarily the light components, wherein the membrane separation system is an
integral top portion of the heavies fractionation column.

US Pat. No. 9,334,350

LOW DENSITY POLYOLEFIN RESINS AND FILMS MADE THEREFROM

Chevron Phillips Chemical...

1. An ethylene/?-olefin copolymer comprising a higher molecular weight component and a lower molecular weight component, wherein
the copolymer has:
a density in a range from about 0.895 to about 0.930 g/cm3;

a ratio of Mw/Mn in a range from about 8 to about 35;
a HLMI in a range from about 4 to about 50 g/10 min;
a ratio of HLMI/MI in a range from about 50 to about 300;
less than about 0.008 LCB per 1000 total carbon atoms; and
a number of short chain branches per 1000 total carbon atoms at Mw that is greater than at Mn.

US Pat. No. 9,850,330

PROCESS FOR FORMING POLYOLEFINS

Chevron Phillips Chemical...

1. A process of forming polyolefins comprising:
introducing olefin monomer selected from C2-C3 olefins into a first reaction zone under first polymerization conditions to form a first polyolefin;

withdrawing a transfer effluent from the first reaction zone, the transfer effluent comprising the first polyolefin and unreacted
olefin monomer;

introducing the transfer effluent, a comonomer selected from C4-C8 olefins, and additional olefin monomer to a second reaction zone under second polymerization conditions to form a second reactor
product;

maintaining an essentially constant comonomer:olefin monomer weight ratio of from about 0.005:1 to 100:1 in the second reaction
zone; and

withdrawing at least a portion of the second reactor product, wherein the second reactor product comprises a bimodal polyolefin.
US Pat. No. 9,597,693

MERCAPTANIZED DICYCLOPENTADIENE COMPOSITIONS AND USE THEREOF AS A MINING CHEMICAL COLLECTOR

Chevron Phillips Chemical...

1. A collector composition comprising water and a polythiol composition comprising sulfur-containing compounds, the sulfur-containing
compounds comprising:
(i) less than 10 wt. % monothiotricyclodecene compounds;
(ii) at least 40 wt. % dithiotricyclodecane compounds; and
(iii) from 5 wt. % to 40 wt. % of a heavy fraction comprising intermolecular sulfide compounds having at least one intermolecular
sulfide group (—S—), at least two groups independently selected from a tricyclodecenyl group and a tricyclodecanyl group,
and optionally at least one thiol sulfur group (—SH).

US Pat. No. 9,550,849

POLYMERS WITH IMPROVED TOUGHNESS AND ESCR FOR LARGE-PART BLOW MOLDING APPLICATIONS

Chevron Phillips Chemical...

1. An ethylene/a-olefin copolymer composition having a density in a range from about 0.95 to about 0.965 g/cm3, a high load melt index (HLMI) in a range from about 2 to about 10 g/10 min, a peak molecular weight (Mp) in a range from
about 65,000 to about 115,000 g/mol, a Mn in a range from about 30,000 to about 60,000 g/mol, a Mz in a range from about 1,750,000
to about 4,000,000 g/mol, and a ratio of Mw/Mn in a range from about 7 to about 15.
US Pat. No. 9,352,309

OLIGOMERIZATION CATALYST SYSTEM AND PROCESS FOR OLIGOMERIZING OLEFINS

Chevron Phillips Chemical...

1. A catalyst system comprising:
a) a chromium compound;
b) 2,5-dibenzyl pyrrole; and
c) an aluminum alkyl.

US Pat. No. 9,347,139

METHODS OF REMOVING A PROTECTIVE LAYER

Chevron Phillips Chemical...

1. A method of removing a first metal protective layer from a surface of a component of a catalytic reforming reactor comprising:
converting at least a portion of a hydrocarbon feed stream to provide aromatic hydrocarbons by contacting the hydrocarbon
feed stream with a first reforming catalyst in the catalytic reforming reactor, wherein the hydrocarbon feed and the aromatic
hydrocarbons contact the first metal protective layer;

removing the first reforming catalyst from the catalytic reforming reactor;
treating the first metal protective layer of the component of the catalytic reforming reactor with a mechanical removal agent
to remove at least a portion of the first metal protective layer from the surface of the component of the catalytic reforming
reactor;

heating the component of the catalytic reforming reactor to a temperature from about 120° F. to about 2,000° F. for from about
1 hour to about 500 hours following application of the mechanical removal agent;

after heating the component, treating the first metal protective layer with one or more chemical removal agents in an amount
of from about 0.1 ppm to about 50,000 ppm to remove a remaining portion of the first metal protective layer from the reactor
component at a temperature from about 200° F. to about 1,600° F. for from about 1 hour to about 500 hours; and

loading the catalytic reforming reactor with a second reforming catalyst comprising a zeolitic reforming catalyst or a bimetallic
reforming catalyst,

wherein the first metal protective layer comprises stannides.
US Pat. No. 9,598,524

STYRENE-BUTADIENE BLOCK COPOLYMERS WITH A TERMINAL BUTADIENE BLOCK FOR TUBING APPLICATIONS

Chevron Phillips Chemical...

1. A conjugated diene monovinylarene block copolymer comprising from about 56 phm to about 63 phm monovinylarene monomer,
and comprising polymer chains containing a block structure having formula I:
S1—(S/B)1—B1  (I);
wherein:
S1 is a monoblock of the monovinylarene monomer, wherein S1 is from about 10 phm to about 45 phm of the copolymer;

(S/B)1 is a mixed block of the conjugated diene monomer and the monovinylarene monomer, wherein the monovinylarene monomer content
is from about 30 wt. % to about 80 wt. %, based on the total weight of (S/B)1;

B1 is a monoblock of the conjugated diene monomer; and

wherein a kink resistance of tubing produced from the copolymer and tested in accordance with DIN EN 13868 is less than or
equal to about 32 mm.

US Pat. No. 9,598,627

FLUID LOSS ADDITIVES AND METHODS OF MAKING AND USING SAME

Chevron Phillips Chemical...

1. A method of conducting an oil-field operation comprising:
placing a non-aqueous wellbore servicing fluid downhole wherein the non-aqueous wellbore servicing fluid comprises a fluid
loss additive comprising the reaction product of (i) a functional polymer and (ii) an oligomerized fatty acid,

wherein the functional polymer comprises a maleic anhydride coploymer having a maleic anhydride content of from about 25%
to about 75% based on the total weight of the copolymer.

US Pat. No. 9,586,872

OLEFIN OLIGOMERIZATION METHODS

Chevron Phillips Chemical...

1. An olefin oligomerization process comprising:
a) contacting an olefin and a catalyst system comprising
i) a transition metal complex comprising an iron compound complexed to a ligand comprising a pyridine bisimine group, and
ii) a metal alkyl compound
to form an olefin oligomer product in a continuous reactor, wherein the contacting is carried out at a temperature ranging
from 90° C. to 150° C. with a catalyst productivity of greater than 1×105 g olefin oligomer product/mmol iron of the transition metal complex; and

b) controlling, in the continuous reactor, an olefin oligomer product distribution K value in a range from 0.5 to 0.8 for
the transition metal complex by adjusting an olefin oligomerization parameter selected from

i) iron of the transition metal complex concentration in the continuous reactor,
ii) a metal of the metal alkyl compound concentration in the continuous reactor,
iii) a metal of the metal alkyl to iron of the transition metal complex molar ratio in the continuous reactor of greater than
250:1, or

iv) any combination thereof.
US Pat. No. 9,505,011

MIXED DECYL MERCAPTANS COMPOSITIONS AND USE THEREOF AS MINING CHEMICAL COLLECTORS

Chevron Phillips Chemical...

1. A process for the recovery of a metal from an ore, the process comprising:
contacting the ore with a collector composition, wherein the collector composition comprises sulfur-containing compounds,
wherein the sulfur-containing compounds comprise;

(i) mercaptans comprising branched C10 mercaptans compounds selected from the group consisting of 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane,
2-butyl-1-mercapto-1-hexane, 5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane,
and combinations thereof; and

(ii) sulfides comprising branched C20 sulfides represented by the structure R1—S—R2, wherein R1 and R2 are each independently a functional group derived from an olefin, wherein the olefin comprises 5-methyl-1-nonene, 3-propyl-1-heptene,
4-ethyl-1-octene, 2-butyl-1-hexene, or combinations thereof.

US Pat. No. 9,475,898

POLYMERS WITH IMPROVED ESCR FOR BLOW MOLDING APPLICATIONS

Chevron Phillips Chemical...

1. A polymerization process comprising:
contacting a catalyst composition with ethylene and an olefin comonomer in a polymerization reactor system under polymerization
conditions to produce an ethylene polymer;
wherein the ethylene polymer comprises a higher molecular weight component and a lower molecular weight component, and wherein
the ethylene polymer is characterized by:
a density in a range from about 0.95 to about 0.965 g/cm3;

a melt index (MI) in a range from about 0.05 to about 1.5 g/10 min;
a ratio of high load melt index to melt index (HLMI/MI) in a range from about 40 to about 175;
a bimodal molecular weight distribution;
less than about 0.008 long chain branches per 1000 total carbon atoms;
a number of short chain branches per 1000 total carbon atoms at Mz that is greater than or equal to the number at Mn; and
a slope of a plot of the viscosity (Pa-sec) versus shear rate (sec?1) at 190° C. of the ethylene polymer at 100 sec?1 in a range from about 0.42 to about 0.65.

US Pat. No. 9,174,377

MULTILAYER BLOWN FILMS FOR SHRINK APPLICATIONS

Chevron Phillips Chemical...

1. A multilayer blown film comprising:
(a) a core layer having a first side and a second side, the core layer comprising an ethylene polymer;
(b) an inner layer positioned on the first side of the core layer, the inner layer comprising a first conjugated diene monovinylarene
block copolymer; and

(c) an outer layer positioned on the second side of the core layer, the outer layer comprising a second conjugated diene monovinylarene
block copolymer;

wherein:
the multilayer blown film has a MD shrink greater than about 60% and a CD shrink in a range from 0% to about 15% at 150° C.;
the multilayer blown film is not a tenter frame, double bubble, or machine direction oriented film; and
the ethylene polymer is characterized by:
a MI in a range from about 0.01 to about 2 g/10 min;
a ratio of HLMI/MI in a range from about 50 to about 300; and
a ratio of Mw/Mn in a range from about 5 to about 30.

US Pat. No. 9,096,699

METHODS OF PREPARING A CATALYST

CHEVRON PHILLIPS CHEMICAL...

1. A method of preparing a catalyst comprising:
contacting an acidic colloidal silica suspension with a titanium-containing compound to form a mixture;
adjusting the pH of the mixture to about neutral to form a catalyst support; and
contacting the catalyst support with a chromium-containing compound to form a chromium-supported catalyst, wherein the catalyst
and/or catalyst support is not alkaline aged.

US Pat. No. 10,029,230

FLOW IN A SLURRY LOOP REACTOR

Chevron Phillips Chemical...

1. An olefin polymerization process comprising:circulating a slurry comprising an olefin monomer selected from C2-C12 olefin monomers, a liquid diluent selected from C3-C7 alkanes, catalyst and polyolefin particles under polymerization conditions within a loop reactor, wherein, in operation, the process has a cavitation number of from 6 to 60 and the polymerization conditions comprise a polymerization temperature of from 38° C. to 121° C. and a polymerization pressure of from 27 bar to 50 bar.

US Pat. No. 9,845,368

HIGH CLARITY LOW HAZE COMPOSITIONS

Chevron Phillips Chemical...

1. A polymerization system comprising:
one or more polymerization reactors; and
a bimodal polymer having a weight fraction of a lower molecular weight (LMW) component ranging from about 0.25 to about 0.45,
a weight fraction of a higher molecular weight (HMW) component ranging from about 0.55 to about 0.75 and a density of from
about 0.931 g/cc to about 0.955 g/cc which when tested in accordance with ASTM D1003 using a 1 mil test specimen displays
a haze characterized by equation: % Haze=2145?2216*FractionLMW?181*a molecular weight distribution of the LMW component (MWDLMW)?932*a molecular weight distribution of the HMW component(MWDHMW)+27*(FractionLMW*MWDLMW)+1019*(FractionLMW*MWDHMW)+73*(MWD LMW*MWDHMW) wherein fraction refers to the weight fraction of the component in the polymer as a whole,

wherein the one or more polymerization reactors are configured to contact monomer with a polymerization catalyst in the presence
of hydrogen at conditions sufficient to yield the bimodal polymer.

US Pat. No. 9,764,297

CONTINUOUS PREPARATION OF CALCINED CHEMICALLY-TREATED SOLID OXIDES

Chevron Phillips Chemical...

1. A continuous calcination vessel comprising:
(a) a fluidized bed vessel having a slope from horizontal in a range from about 5 degrees to less than about 15 degrees;
(b) a particulate material inlet capable of introducing inlet particulate material into the fluidized bed vessel;
(c) a fluidizing gas inlet capable of introducing a fluidizing gas into the fluidized bed vessel;
(d) a fluidizing gas path capable of directing the fluidizing gas from the fluidizing gas inlet into the fluidized bed vessel
to fluidize the inlet particulate material;

(e) a heating zone within the fluidized bed vessel; and
(f) an outlet capable of removing outlet particulate material from the fluidized bed vessel.

US Pat. No. 9,707,549

ETHYLENE OLIGOMERIZATION CATALYST SYSTEMS USING CHEMICALLY-TREATED SOLID OXIDES

Chevron Phillips Chemical...

1. A process comprising:
a) contacting
i) ethylene;
ii) a catalyst system comprising:
a) a heteroatomic ligand transition metal compound complex;
b) a chemically-treated solid oxide; and
c) an organoaluminum compound; and
iii) optionally, an organic reaction medium; and
b) forming an oligomer product comprising a liquid oligomer product and a solid polymer product; wherein:
the weight percentage of the solid polymer product, based on the total weight of the liquid oligomer product and the solid
polymer product, is in a range from 5 wt. % to 65 wt. %.

US Pat. No. 9,574,031

DUAL CATALYST SYSTEMS FOR PRODUCING POLYMERS WITH A BROAD MOLECULAR WEIGHT DISTRIBUTION AND A UNIFORM SHORT CHAIN BRANCH DISTRIBUTION

Chevron Phillips Chemical...

1. A polymerization process, the process comprising:
contacting a catalyst composition with ethylene and an ?-olefin comonomer in a polymerization reactor system under polymerization
conditions to produce an ethylene/?-olefin copolymer, wherein the catalyst composition comprises catalyst component I, catalyst
component II, an activator, and an optional co-catalyst, wherein:

catalyst component I comprises a boron bridged metallocene compound with a cyclopentadienyl group and an indenyl group; and
catalyst component II comprises a single atom bridged metallocene compound with a fluorenyl group; and
the ethylene/?-olefin copolymer is characterized by a slope of a plot of the number of short chain branches per 1000 total
carbon atoms versus the logarithm of molecular weight of the copolymer, determined via linear regression over the range from
D15 to D85, in a range from about ?0.6 to about 0.6.

US Pat. No. 9,353,202

SYSTEM AND METHOD FOR DETERRING FOULING IN A POLYMERIZATION REACTOR

Chevron Phillips Chemical...

1. A continuous olefin polymerization system comprising:
a reactor system comprising a loop slurry polymerization reactor comprising an olefin monomer, a catalyst composition, and
a diluent, wherein the loop slurry polymerization reactor continuously subjects the olefin monomer to polymerization conditions
in the presence of the catalyst composition to produce a polyolefin slurry having polyolefin particles suspended in the diluent;

a precontactor coupled to an inlet of the loop slurry polymerization reactor and configured to provide the catalyst composition
to the loop slurry polymerization reactor, wherein the precontactor comprises contact components that form the catalyst composition,
the contact components comprising:

an olefin polymerization catalyst; and
an agent comprising an ammonium salt such that the catalyst composition has a greater catalyst activity in the presence of
water than the olefin polymerization catalyst where the ammonium salt is not present.

US Pat. No. 9,126,878

ETHYLENE SEPARATION WITH TEMPERATURE SWING ADSORPTION

CHEVRON PHILLIPS CHEMICAL...

1. A process for component separation in a polymer production system, comprising:
(a) separating a polymerization product stream into a gas stream and a polymer stream, wherein the polymer stream comprises
polyethylene, ethylene and ethane;

(b) contacting at least a portion of the polymer stream with a purge gas to yield a purged polymer stream and a spent purge
gas stream, wherein the purged polymer stream comprises polyethylene, and wherein the spent purge gas comprises purge gas,
ethylene, and ethane;

(c) contacting at least a portion of the spent purge gas stream with a temperature swing adsorber contactor (TSAC) to yield
a loaded TSAC and a non-adsorbed gas stream, wherein at least a portion of the ethylene is adsorbed by the TSAC at a first
temperature to yield TSAC-adsorbed ethylene, wherein a portion of the ethane is adsorbed by the TSAC at the first temperature
to yield TSAC-adsorbed ethane, and wherein the loaded TSAC comprises TSAC-adsorbed ethylene and TSAC-adsorbed ethane;

(d) heating at least a portion of the loaded TSAC to a second temperature to yield a regenerated TSAC, desorbed ethylene and
desorbed ethane, wherein the desorbed ethylene comprises at least a portion of the TSAC-adsorbed ethylene, and wherein the
desorbed ethane comprises at least a portion of the TSAC-adsorbed ethane; and

(e) contacting at least a portion of the regenerated TSAC with a sweeping gas stream to yield a recovered adsorbed gas stream,
wherein the recovered adsorbed gas stream comprises sweeping gas, recovered ethylene and recovered ethane, wherein the recovered
ethylene comprises at least a portion of the desorbed ethylene, and wherein the recovered ethane comprises at least a portion
of the desorbed ethane.

US Pat. No. 9,944,736

PROCESSES FOR PREPARING METALLOCENE-BASED CATALYST SYSTEMS

Chevron Phillips Chemical...

1. A process to produce a dual metallocene catalyst composition, the process comprising:(a) contacting a first metallocene compound and an organoaluminum compound with a slurry of an activator-support for a first period of time to form a first mixture; and
(b) contacting the first mixture with a second metallocene compound for a second period of time to form the dual metallocene catalyst composition;
wherein an activity of the catalyst composition is at least about 10% greater than that of a dual catalyst system obtained by combining the activator-support, a mixture of the first metallocene compound and the second metallocene compound, and the organoaluminum compound, under the same polymerization conditions.

US Pat. No. 9,845,367

HETEROGENEOUS ZIEGLER-NATTA CATALYSTS WITH FLUORIDED SILICA-COATED ALUMINA

Chevron Phillips Chemical...

1. A process to produce a supported catalyst, the process comprising:
(i) contacting:
(a) a fluorided silica-coated alumina;
(b) a magnesium compound; and
(c) a first titanium (IV) compound and/or vanadium compound to form a first solid precatalyst;
(ii) contacting the first solid precatalyst with an organoaluminum compound to form a second solid precatalyst; and
(iii) contacting the second solid precatalyst with a second titanium (IV) compound and/or vanadium compound to form the supported
catalyst.

US Pat. No. 9,718,948

SYSTEM AND METHOD FOR CLOSED RELIEF OF A POLYOLEFIN LOOP REACTOR SYSTEM

Chevron Phillips Chemical...

1. A method of operating a polyolefin manufacturing system, comprising:
polymerizing olefin in a first reactor to form a first polyolefin;
transferring the first polyolefin to a second reactor;
polymerizing olefin in the second reactor to form a second polyolefin;
discharging a product polyolefin from the second reactor, the product polyolefin comprising the first polyolefin and the second
polyolefin; and

operating the first reactor with a first reactor pressure relief system and the second reactor with a second reactor pressure
relief system, both pressure relief systems configured to discharge to a flare system;

wherein the polyolefin manufacturing system comprises a relief instrumented system (RIS) configured to direct at least one
process interlock that mitigates an excess reaction of the first reactor or the second reactor, or both, as an overpressure
relief.

US Pat. No. 9,645,066

POLYMER COMPOSITIONS HAVING IMPROVED PROCESSABILITY AND METHODS OF MAKING AND USING SAME

Chevron Phillips Chemical...

1. A method of preparing a polymer article comprising:
determining a zero-shear viscosity for a polymer sample;
sieving the polymer sample to produce a plurality of sieved polymer samples;
determining a molecular weight distribution for each of the plurality of sieved polymer samples;
determining a zero-shear viscosity for each of the plurality of sieved polymer samples;
determining a compositional diversity of each of the plurality of sieved polymer samples based on a ratio of the zero shear
viscosity for each of the plurality of sieved polymer samples to the zero shear viscosity for the polymer sample;

identifying a polymer sample having a compositional diversity for the polymer sample of less than about 2; and
preparing a polymer article from the identified polymer sample.
US Pat. No. 9,636,659

SELECTIVE HYDROGENATION CATALYST AND METHODS OF MAKING AND USING SAME

Chevron Phillips Chemical...

1. A composition comprising:
an inorganic support comprising an oxide of a metal or metalloid;
a halide; and
at least one catalytically active metal,
wherein the inorganic support has pores, a total pore volume, and a pore size distribution;
wherein the pore size distribution displays at least two peaks of pore diameters, each peak having a maximum; wherein a first
peak has a first maximum of pore diameters of from greater than 1,000 nm to about 6,000 nm; wherein a second peak has a second
maximum of pore diameters of less than about 120 nm; and wherein greater than or equal to about 15% of the total pore volume
of the inorganic support is contained within the first peak of pore diameters.

US Pat. No. 9,593,189

PRESSURE CONTROL TO REDUCE PUMP POWER FLUCTUATIONS

Chevron Phillips Chemical...

1. A polymerization process comprising:
circulating, with a pump, a reaction mixture slurry in a polymerization loop reactor during a polymerization process, wherein
the reaction mixture slurry comprises an olefin, a catalyst, and polymer particles;

detecting a pressure change in the reaction mixture slurry downstream of the pump;
generating, by a pressure controller, a takeoff valve actuation signal for a takeoff valve based on the pressure change, wherein
a portion of the reaction mixture slurry is continually removed from the polymerization reactor in proportion to the takeoff
valve position, and wherein the reaction mixture slurry is retained in the polymerization reactor when the takeoff valve is
in a closed position, wherein the reactor pressure is based on the takeoff valve position;

generating, by the pressure controller, a correction to the takeoff valve actuation signal;
generating, by the pressure controller, a time delay for the correction;
applying the correction to the takeoff valve actuation signal to generate a corrected takeoff valve actuation signal;
providing the corrected takeoff valve actuation signal to the takeoff valve after the time delay; and
adjusting a position of the takeoff valve in response to providing the corrected takeoff valve actuation signal.
US Pat. No. 9,540,457

ZIEGLER-NATTA—METALLOCENE DUAL CATALYST SYSTEMS WITH ACTIVATOR-SUPPORTS

Chevron Phillips Chemical...

1. A catalyst composition comprising:
(A) a supported catalyst comprising:
(a) a fluorided silica-coated alumina;
(b) a magnesium compound; and
(c) titanium (IV) and/or vanadium;
(B) a metallocene compound; and
(C) a co-catalyst.

US Pat. No. 10,000,594

DUAL CATALYST SYSTEM FOR PRODUCING LLDPE COPOLYMERS WITH A NARROW MOLECULAR WEIGHT DISTRIBUTION AND IMPROVED PROCESSABILITY

Chevron Phillips Chemical...

1. An ethylene polymer having:a Mw in a range from about 70,000 to about 200,000 g/mol;
a ratio of Mz/Mw in a range from about 1.8 to about 20;
an IB parameter in a range from about 0.92 to about 1.05; and
a peak ATREF temperature in a range from about 68 to about 78° C.

US Pat. No. 9,745,230

OLIGOMERIZATION OF ALPHA OLEFINS USING METALLOCENE-SSA CATALYST SYSTEMS AND USE OF THE RESULTANT POLYALPHAOLEFINS TO PREPARE LUBRICANT BLENDS

Chevron Phillips Chemical...

1. An oligomerization method comprising:
a) contacting an alpha olefin monomer and a catalyst system, wherein the alpha olefin monomer comprises at least 80 weight
percent of a C6 to C16 normal alpha olefin, and wherein the catalyst system comprising comprises:

1) a metallocene,
2) a first activator comprising a solid oxide chemically-treated with an electron withdrawing anion, and
3) a second activator comprising an organoaluminum compound having a formula: Al(X10)n(X11)3-n, wherein X10 is independently a C1 to C20 hydrocarbyl, X11 is independently a halide, a hydride, or a C1 to C20 hydrocarboxide, and n is a number from 1 to 3;

wherein the catalyst system is devoid of added aluminoxane;
b) forming an oligomer product in an oligomerization reactor under oligomerization conditions, wherein the oligomer product
comprises dimers, trimers, and higher oligomers, wherein the oligomer product has a pour point less than 0° C.;

c) separating an effluent of the oligomerization reactor comprising the oligomer product to provide a heavy oligomer product,
wherein at least a portion of the alpha olefin monomer, dimers, or trimers are removed from the effluent of the oligomerization
reactor to form the heavy oligomer product; wherein:

the heavy oligomer product comprises less than 0.2 weight % alpha olefin monomer, less than 0.5 weight % dimers, and at least
88 weight % higher oligomers, based upon the total weight of the heavy oligomer product; and

the heavy oligomer product has a 100° C. kinematic viscosity from 15 cSt to 250 cSt.

US Pat. No. 9,670,324

POLY(THIOESTERS), THEIR APPLICATIONS AND DERIVATIVES

Chevron Phillips Chemical...

1. A composition of the formulae:
MFmORSnR1OM1
wherein:
O and S have their normal meaning of oxygen and sulfur;
n is at least 2 and, not more than 8;
F is of the formula —ORSnR1OA-;

m is at least 1;
M and M1 are the same or different and are hydrogen or an organic substituent;

R and R1 are the same or different and are organic divalent radicals, each having from 2 to 20 carbon atoms; and

A is the residue of a dicarboxylic acid of from 2 to 40 carbon atoms.

US Pat. No. 9,610,558

ENERGY EFFICIENT POLYOLEFIN PROCESS

Chevron Phillips Chemical...

1. A system, comprising:
a polymerization reactor configured to produce a slurry comprising polyolefin particles and a diluent;
a coolant system configured to provide a coolant to a reactor jacket disposed along a portion of the polymerization reactor,
wherein an outlet temperature of the coolant exiting the reactor jacket is about 15° F. or more greater than an inlet temperature
of the coolant entering the reactor jacket; and

one or more automation controllers configured to:
receive an input indicative of the outlet temperature of the coolant exiting the reactor jacket; and
activate an output to actuate the coolant system to provide the coolant to the reactor jacket based at least in part on the
input to maintain the outlet temperature about 15° F. or more greater than the inlet temperature of the coolant entering the
reactor jacket.

US Pat. No. 9,605,100

HIGHER DENSITY POLYOLEFINS WITH IMPROVED STRESS CRACK RESISTANCE

Chevron Phillips Chemical...

1. A catalyst composition comprising:
catalyst component I comprising an unbridged Group IV transition metal based metallocene compound;
catalyst component II comprising a bridged Group IV transition metal based metallocene compound with a fluorenyl group;
catalyst component III comprising a half-metallocene compound having formula (IIIA):

 wherein:
Ind is an indenyl group; and
each X independently is a monoanionic ligand;
an activator; and
optionally, a co-catalyst.

US Pat. No. 9,598,513

LONG CHAIN BRANCHED POLYMERS AND METHODS OF MAKING SAME

Chevron Phillips Chemical...

1. A polyethylene polymer having a long chain branching content peaking at greater than about 20 long chain branches per million
carbon atoms and a polydispersity index (Mw/Mn) of greater than about 20, wherein the long chain branching decreases to approximately zero at the higher molecular weight
portion of the molecular weight distribution.

US Pat. No. 9,598,514

COMPONENT SEPARATIONS IN POLYMERIZATION

Chevron Phillips Chemical...

1. A process for component separation in a polymer production system, comprising:
polymerizing olefin monomers in a first polymerization reactor to yield a mid-polymerization product stream;
flashing, in a flash tank, the mid-polymerization product stream to yield a mid-polymer stream;
distilling a vapor stream recovered from the flash tank to yield a mid-gas stream; and
polymerizing the mid-polymer stream in a second polymerization reactor,
wherein the mid-polymerization product stream comprises hydrogen, ethane, unreacted ethylene, isobutane, and polyethylene,
wherein the mid-polymer stream comprises the polyethylene and the isobutane, and
wherein the mid-gas stream comprises the unreacted ethylene and the ethane.

US Pat. No. 9,587,048

METHODS OF PREPARING A CATALYST

Chevron Phillips Chemical...

1. A method comprising:
a) calcining a silica support at temperature in the range of from about 100° C. to about 500° C. to form a precalcined silica
support;

b) contacting the precalcined silica support with a titanium alkoxide to form a titanated support;
c) subsequent to b), contacting the titanated support with a polyol to form a polyol associated titanated support (PATS);
d) contacting at least one of the silica support, pre-calcined silica support, the titanated support, the PATS, or combinations
thereof with a chromium-containing compound to form a polymerization catalyst precursor;

e) drying the polymerization catalyst precursor to form a dried polymerization catalyst precursor; and
f) calcining the dried polymerization catalyst precursor to produce a polymerization catalyst, wherein less than about 0.1
wt. % of a highly reactive volatile organic compound (HRVOC) is emitted during the calcining of the dried polymerization catalyst
precursor.

US Pat. No. 9,539,587

MERCAPTANIZED DICYCLOPENTADIENE COMPOSITIONS AND USE THEREOF AS A MINING CHEMICAL COLLECTOR

Chevron Phillips Chemical...

1. A flotation process for the recovery of a metal from an ore, the process comprising:
contacting the ore with a collector composition, wherein the collector composition comprises a polythiol composition comprising
sulfur-containing compounds, the sulfur-containing compounds comprising:

(i) less than 10 wt. % monothiotricyclodecene compounds;
(ii) at least 40 wt. % dithiotricyclodecane compounds; and
(iii) from 5 wt. % to 40 wt. % of a heavy fraction comprising intermolecular sulfide compounds having at least one intermolecular
sulfide group (—S—), at least two groups independently selected from a tricyclodecenyl group and a tricyclodecanyl group,
and optionally at least one thiol sulfur group (—SH).

US Pat. No. 9,540,465

BORON-BRIDGED METALLOCENE CATALYST SYSTEMS AND POLYMERS PRODUCED THEREFROM

Chevron Phillips Chemical...

1. An ethylene homopolymer having:
a melt index greater than or equal to about 100 g/10 min;
a density of less than or equal to about 0.970 g/cm3;

a Mn in a range from about 5,000 to about 20,000 g/mol;
a ratio of Mw/Mn of less than or equal to about 4; and
less than about 0.008 long chain branches per 1000 total carbon atoms.
US Pat. No. 9,540,475

STYRENE-BUTADIENE BLOCK COPOLYMERS FOR TUBING APPLICATIONS

Chevron Phillips Chemical...

1. A process to produce a kink-resistant conjugated diene monovinylarene block copolymer comprising from about 35 phm to about
70 phm monovinylarene monomer, the process comprising sequentially contacting under polymerization conditions:
(i) a first initiator charge and a first charge of the monovinylarene monomer;
(ii) a second initiator charge and a second charge of the monovinylarene monomer;
(iii) a first dual charge of the monovinylarene monomer and the conjugated diene monomer, wherein the monovinylarene monomer
content of the first dual charge is from about 30 wt. % to about 80 wt. %;

(iv) optionally, a second dual charge of the monovinylarene monomer and the conjugated diene monomer, wherein the monovinylarene
monomer content of the second dual charge is from about 30 wt. % to about 80 wt. %;

(v) a final charge of the monovinylarene monomer and the conjugated diene monomer or the conjugated diene monomer, wherein
the conjugated diene monomer content of the final charge is at least about 70 wt. %; and

(vi) a coupling agent;
wherein the first charge and the second charge comprise a total of from about 10 phm to about 45 phm of the monovinylarene
monomer; and

wherein a kink resistance of tubing produced from the copolymer and tested in accordance with DIN EN 13868 is less than or
equal to about 32 mm.

US Pat. No. 9,238,698

PRESSURE MANAGEMENT FOR SLURRY POLYMERIZATION

CHEVRON PHILLIPS CHEMICAL...

1. A process for pressure management of a polymerization product in slurry polymerization, the process comprising:
withdrawing a polymerization product slurry from a loop polymerization reactor;
conveying the polymerization product slurry through a first line comprising a continuous take-off valve to yield a mixture
comprising a vapor phase, wherein the mixture exits the continuous take-off valve; and

conveying the mixture through a second line comprising a flashline heater so that the mixture has a prouder number in a range
from about 5 to about 100, wherein the flashline heater comprises a plurality of segments.

US Pat. No. 10,046,306

TREATER REGENERATION

Chevron Phillips Chemical...

1. A treater regeneration system in a polyolefin production system, the treater regeneration system comprising:an off-line treater receiving a first portion of a regenerating stream and regenerating a desiccant in the off-line treater to yield a regenerating effluent stream, wherein the regenerating stream comprises a regenerating medium, and wherein the regenerating effluent stream comprises the regenerating medium, water and an impurity;
a decanter receiving at least a portion of the regenerating effluent stream to yield the regenerating stream and a water stream, wherein the water stream comprises the water; and
a stripper receiving a second portion of the regenerating stream to yield an impurity stream and a process recycle stream, wherein the impurity stream comprises at least a portion of the impurity, and wherein the process recycle stream comprises the regenerating medium of the second portion of the regenerating stream.

US Pat. No. 10,000,595

CATALYST SYSTEMS CONTAINING LOW VALENT TITANIUM COMPOUNDS AND POLYMERS PRODUCED THEREFROM

Chevron Phillips Chemical...

1. A method of making a bimetallic compound having the formula:the method comprising:contacting a half-metallocene titanium compound having the formula:
with an alkylaluminum compound having the formula Al(RZ)3 to form a mixture comprising the bimetallic compound having formula (A); wherein:X1 and X2 independently are a halide;
R1, R2, and R3 independently are H or a halide, C1 to C36 hydrocarbyl group, C1 to C36 halogenated hydrocarbyl group, C1 to C36 hydrocarboxy group, or C1 to C36 hydrocarbylsilyl group;
Cp is a substituted or unsubstituted cyclopentadienyl, indenyl, or fluorenyl group; and
each RZ independently is a C1 to C10 alkyl group.

US Pat. No. 9,822,193

UNIFIED COOLING FOR MULTIPLE POLYOLEFIN POLYMERIZATION REACTORS

CHEVRON PHILLIPS CHEMICAL...

1. A method of controlling reactor temperature during startup conditions, comprising:
splitting a first control feed system into at least (1) a first heat exchanger zone feed stream through a first heat exchanger
zone to produce a first heat exchanger zone output stream and (2) a first heat exchanger zone bypass stream;

combining the first heat exchanger zone output stream and the first heat exchanger zone bypass stream to give a first treated
stream having a first treated stream temperature;

recycling a first return stream comprising the first treated stream after the first treated stream has exchanged energy with
a first polyolefin reactor;

splitting a second control feed stream into at least (1) a second heat exchanger zone feed stream through a second heat exchanger
zone to produce a second heat exchanger zone output stream and (2) a second heat exchanger zone bypass stream;

combining the second heat exchanger zone output stream and the second heat exchanger zone bypass stream to give a second treated
stream having a second treated stream temperature;

recycling a second return stream comprising the second treated stream after the second treated stream has exchanged energy
with a second polyolefin reactor;

combining the first and second return streams to form a combined return stream;
processing the combined return stream through shared system equipment to form a shared output stream; and
splitting the shared output stream into the first control feed and the second control feed.
US Pat. No. 9,783,621

PRESSURE RELIEF FOR MULTIPLE POLYOLEFIN POLYMERIZATION REACTORS

CHEVRON PHILLIPS CHEMICAL...

1. A method of operating a polyolefin manufacturing system, comprising:
polymerizing olefin in a first reactor to form a first polyolefin;
transferring the first polyolefin to a second reactor in a manner that is continuous and not directly modulated wherein the
continuous transfer is controlled by the pressure differential between the first reactor and the second reactor without a
CTO valve;

polymerizing olefin in the second reactor to form a second polyolefin;
discharging a product polyolefin from the second reactor, the product polyolefin comprising the first polyolefin and the second
polyolefin; and

wherein the polyolefin manufacturing system comprises a relief instrumentation system configured to mitigate an excess reaction
in the first reactor or the second reactor, or both.

US Pat. No. 9,718,907

ZIEGLER-NATTA—METALLOCENE DUAL CATALYST SYSTEMS WITH ACTIVATOR-SUPPORTS

Chevron Phillips Chemical...

1. An ethylene copolymer characterized by:
a melt index of less than or equal to about 10 g/10 min;
a density in a range from about 0.90 g/cm3 to about 0.935 g/cm3;

less than or about 0.01 long chain branches per 1000 total carbon atoms; and
a ratio of Mw/Mn in a range from about 2.5 to about 8;
and having the following polymer fractions in an ATREF test:
from about 1 to about 18 wt. % of the polymer eluted below a temperature of 40° C.;
from about 1 to about 10 wt. % of the polymer eluted between 76 and 86° C.;
from about 27 to about 60 wt. % of the polymer eluted above a temperature of 86° C.;
and the remaining percentage of the polymer eluted between 40 and 76° C.

US Pat. No. 9,637,573

POLYMER COMPOSITIONS AND METHODS OF MAKING AND USING SAME

Chevron Phillips Chemical...

1. An extruded polymer reactor-blend having a density of greater than about 0.95 g/ml and a tensile natural draw ratio of
from about 540% to about 600% wherein the reactor-blend comprises at least a first component and a second component and wherein
one of the components has a molecular weight distribution of greater than about 20.
US Pat. No. 9,611,188

AROMATIC ALKYLATION USING CHEMICALLY-TREATED SOLID OXIDES

Chevron Phillips Chemical...

1. A process for alkylating an aromatic compound, the process comprising:
contacting the aromatic compound, an olefin feedstock, and a chemically-treated solid oxide to produce a product comprising
an alkylated aromatic compound;

wherein the chemically-treated solid oxide comprises a silica-coated alumina treated with an electron-withdrawing anion.

US Pat. No. 9,605,095

POLYMERIZATION PRODUCT PRESSURES IN OLEFIN POLYMERIZATION

Chevron Phillips Chemical...

1. A process for pressure management of a polymerization product comprising a liquid phase and a solid phase, the process
comprising:
reducing, at a location downstream of a polymerization reactor and upstream of a flashline heater, a pressure of the polymerization
product to less than a bubble point pressure of at least one component of the liquid phase,

where the location is within or downstream of a continuous take-off valve and is upstream of the flashline heater and wherein
the continuous take-off valve has a nominal diameter of about 1 inch to about 8 inches.

US Pat. No. 9,580,370

ETHYLENE RECOVERY BY ABSORPTION

Chevron Phillips Chemical...

1. A process comprising
contacting ethylene and a polymerization catalyst in a first loop slurry reactor and in a second loop slurry reactor connected
in series with the first loop slurry reactor, under suitable reaction conditions to yield a polymerization product stream
flowing from the second loop slurry reactor, wherein the polymerization product stream comprises a bimodal polymer,

separating a as stream from the polymerization product stream, wherein the gas stream comprises unreacted ethylene and ethane;
separating, using an absorption solvent system at a temperature in a range of from about 40° F. to about 110° F., at least
one gaseous component from the gas stream to form a recycle stream comprising unreacted ethylene and a waste stream comprising
ethane, wherein absorption solvent system comprises copper chloride, aniline, and N-methylpyrrolidone; and

recycling the unreacted ethylene of the recycle stream to the first loop slurry reactor, the second loop slurry reactor, or
both the first loop slurry reactor and the second loop slurry reactor.

US Pat. No. 9,527,090

MIXED DECYL MERCAPTANS COMPOSITIONS AND USE THEREOF AS MINING CHEMICAL COLLECTORS

Chevron Phillips Chemical...

1. A mining chemical collector composition comprising sulfur-containing compounds, the sulfur-containing compounds comprising:
(i) mercaptans comprising branched C10 mercaptans compounds selected from the group consisting of 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane,
2-butyl-1-mercapto-hexane, 5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane,
and combinations thereof; and

(ii) sulfides comprising branched C20 sulfides represented by the structure R1—S—R2, wherein R1 and R2 are each independently a functional group derived from an olefin, wherein the olefin comprises 5-methyl-1-nonene, 3-propyl-1-heptene,
4-ethyl-1-octene, 2-butyl-1-hexene, or combinations thereof.

US Pat. No. 9,211,523

POLYOLEFIN MANUFACTURING SYSTEM INCLUDING A MEMBRANE FRACTIONATION SYSTEM FOR DILUENT RECOVERY

Chevron Phillips Chemical...

1. A fractionation system comprising:
an effluent treatment system treating an effluent comprising polyolefin solids, isobutane, heavy components, and light components,
and producing a first feed stream and a second feed stream;

a heavies fractionation column receiving the first feed stream and fractionating the first feed stream to remove heavy components
of the first feed stream; and

a membrane separation system receiving the second feed stream and separating the second feed stream into a lights enriched
stream concentrated with the light components relative to the second feed stream and an isobutane enriched stream concentrated
with the isobutane relative to the second feed stream;

wherein the membrane separation system is an integral top portion of the heavies fractionation column.

US Pat. No. 10,040,758

MIXED DECYL MERCAPTANS COMPOSITIONS AND METHODS OF MAKING SAME

Chevron Phillips Chemical...

1. A composition comprising C10+ mercaptans, wherein at least about 50 wt. % of the C10+ mercaptans are branched C10 to C30 mercaptans characterized by the general formula R14—SH, wherein R14 is a branched alkyl group; wherein R14 has from 10 to 30 carbon atoms; wherein the branched C10 to C30 mercaptans characterized by the general formula R14—SH are 1) C10+ mercaptans selected from the group consisting of a branched C10 to C30 mercaptan represented by Structure A-1, a branched C10 to C30 mercaptan represented by Structure B-1, a branched C10 to C30 mercaptan represented by Structure D-1, a branched C10 to C30 mercaptan represented by Structure E-1, a branched C10 to C30 mercaptan represented by Structure F-1, a branched C10 to C30 mercaptan represented by Structure G-1, and combinations thereof; and 2) a branched C10 to C30 mercaptan represented by Structure H-1; and wherein R9 is a C1 to C21 alkyl group

US Pat. No. 9,732,016

SEPARATIONS WITH IONIC LIQUID SOLVENTS

Chevron Phillips Chemical...

1. A method comprising:
providing a process stream comprising an olefin;
capturing at least a portion of the olefin from the process stream by an ionic liquid solvent, wherein the capturing is performed
at a liquid-to-gas mass flow ratio from about 1 to about 350; and

recovering at least a portion of a captured olefin from the ionic liquid solvent.

US Pat. No. 9,732,106

PHOSPHINYL AMIDINE COMPOUNDS, METAL COMPLEXES, CATALYST SYSTEMS, AND THEIR USE TO OLIGOMERIZE OR POLYMERIZE OLEFINS

Chevron Phillips Chemical...

1. An N2-phosphinyl amidine chromium, salt complex having the formula:

wherein:
R1 is a phenyl group or a C6 to C20 substituted phenyl group, and where each substituent independently can be a halide, a C1 to C10 hydrocarbyl group, or a C1 to C10 hydrocarboxy group,

R2 is a C6 to C20 aryl group, a C6 to C20 substituted aryl group, a C7 to C20 aralkyl group, or a C7 to C20 substituted aralkyl group, and where each substituent independently can be a halide, a C1 to C10 hydrocarbyl group, or a C1 to C10 hydrocarboxy group,

R3 is hydrogen,

R4 and R5 are each independently a C1 to C15 alkyl group, a C4 to C20 cycloalkyl group, a C4 to C20 substituted cycloalkyl group, a phenyl group, or a C6 to C20 substituted aryl group, and were each substituent independently can be a halide, a C1 to C10 hydrocarbyl group, or a C1 to C10 hydrocarboxy group,

CrXp represents the chromium salt where X is a C1 to C20 carboxylate, a C1 to C20 ?-diketonate, or a halide, and p ranges from 2 to 3,

Q is a neutral ligand and each neutral ligand independently is a nitrile or an ether, and
a ranges from 0 to 6.
US Pat. No. 9,732,197

PEROXIDE TREATED METALLOCENE-BASED POLYOLEFINS WITH IMPROVED MELT STRENGTH

Chevron Phillips Chemical...

1. A process for preparing an ethylene polymer having a ratio of Mw/Mn of less than or equal to about 5, a ratio of Mz/Mw
of less than or equal to about 2.3, and a zero-shear viscosity at 190° C. of greater than or equal to about 8×104 Pa-sec, the process comprising:
contacting a base resin with a peroxide compound at a temperature in a range from about 120 to about 300° C. to generate peroxide
groups at about 10-50 ppm of peroxide groups based on the weight of the base resin.

US Pat. No. 9,718,042

AROMATIZATION REACTORS WITH HYDROGEN REMOVAL AND RELATED REACTOR SYSTEMS

Chevron Phillips Chemical...

1. An aromatization reactor vessel comprising:
(a) a reactor wall;
(b) a catalyst bed positioned within the reactor vessel;
(c) an outer annulus positioned between the reactor wall and an outer particle barrier, the outer particle barrier and the
outer annulus surrounding the catalyst bed;

(d) a reactor inlet for a feed stream;
(e) a reactor outlet connected to a center pipe, the center pipe positioned in the reactor vessel and surrounded by the catalyst
bed;

wherein a flow path for the feed stream begins at the reactor inlet, continues to the outer annulus, through the outer particle
barrier and the catalyst bed, into the center pipe, and to the reactor outlet; and

(f) a membrane tube configured to remove H2, the membrane tube positioned in the center pipe or the outer annulus, the membrane tube having an inner permeate side and
an outer process side.

US Pat. No. 9,631,158

PROCESSES FOR PREPARING LOW VISCOSITY LUBRICANTS

Chevron Phillips Chemical...

1. A polyalphaolefin comprising at least 80 wt. % C40 saturated branched hydrocarbons, wherein the polyalphaolefin has a kinematic viscosity at ?40° C. in a range from 4,500 to
9,500 cSt.
US Pat. No. 9,598,515

PROCESSES FOR PREPARING SOLID METALLOCENE-BASED CATALYST SYSTEMS

Chevron Phillips Chemical...

1. A catalyst composition comprising:
(i) a precontacted mixture comprising:
an activator-support, and
a solid metallocene compound; and
(ii) an organoaluminum compound;
wherein an activity of the catalyst composition is from about 5% to about 100% greater than that of a catalyst system obtained
by using a solution of the metallocene compound instead of the solid metallocene compound, under the same polymerization conditions.

US Pat. No. 9,580,453

PREPARATION OF TRANSITION METAL CARBOXYLATES

Chevron Phillips Chemical...

1. A transition metal carboxylate composition produced by the process comprising: contacting under substantially anhydrous
and substantially acid-free conditions
1) a transition metal precursor having the formula [((MB)y1Xx1Ll)m]q[Cc]m1[Aa]m2 where

MB is a transition metal in the +x oxidation state where x is an integer from +1 to +6; each X independently is an anionic ligand
having charge y where y is an integer from ?3 to ?1;

each L independently is a neutral ligand;
l is an integer from 0 to 7;
m is an integer from ?4 to 4;
m=(y*x1)+(x*y1);
C is a cationic species having a charge c and c is an integer from +1 to +3;
A is an anionic species having a charge a and a is an integer from ?1 to ?3;
when m<0, |m*q|=c*m1 and m2=0;
when m=0, m1=0 and m=0; and
when m>0, m*q=|a*m2| and m1=0,
2) a Group 1 or Group 2 metal C3-C25 carboxylate, and

3) a first solventto form a transition metal carboxylate.
US Pat. No. 9,512,248

MIXED DECYL MERCAPTANS COMPOSITIONS AND USE THEREOF AS CHAIN TRANSFER AGENTS

Chevron Phillips Chemical...

1. A process for emulsion polymerization comprising:
introducing into an emulsion polymerization mixture a chain transfer agent composition comprising at least one branched C10 mercaptan,

wherein the at least one branched C10 mercaptan is selected from 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane, 2-butyl-1-mercapto-hexane,
5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane, or combinations
thereof.

US Pat. No. 9,944,735

BORON-BRIDGED BIS-INDENYL METALLOCENE CATALYST SYSTEMS AND POLYMERS PRODUCED THEREFROM

Chevron Phillips Chemical...

1. An ethylene copolymer having:a melt index greater than or equal to about 25 g/10 min;
a density of less than or equal to about 0.92 g/cm3;
a ratio of Mw/Mn of less than or equal to about 6; and
a Mn in a range from about 3,000 to about 18,000 g/mol;
wherein the ethylene copolymer is an ethylene/1-butene copolymer, an ethylene/1-hexene copolymer, or an ethylene/1-octene copolymer.

US Pat. No. 9,879,102

MIXED DECYL MERCAPTANS COMPOSITIONS AND USE THEREOF AS CHAIN TRANSFER AGENTS

Chevron Phillips Chemical...

1. A process for emulsion polymerization comprising:
contacting a chain transfer agent composition with one or more monomers, one or more surfactants, one or more polymerization
initiators, and water to form an emulsion polymerization mixture; and

recovering a polymer from the emulsion polymerization mixture,wherein the chain transfer agent composition comprises mercaptans, wherein at least about 50 wt. % of the mercaptans are branched
C10 mercaptans selected from the group consisting of 5-methyl-1-mercapto-nonane (represented by Structure A), 3-propyl-1-mercapto-heptane
(represented by Structure B), 4-ethyl-1-mercapto-octane (represented by Structure C), 2-butyl-1-mercapto-hexane (represented
by Structure D), 5-methyl-2-mercapto-nonane (represented by Structure E), 3-propyl-2-mercapto-heptane (represented by Structure
F), 4-ethyl-2-mercapto-octane (represented by Structure G), 5-methyl-5-mercapto-nonane (represented by Structure H), and combinations
thereof

US Pat. No. 9,718,767

BETA-MERCAPTOETHANOL SYNTHESIS

Chevron Phillips Chemical...

1. A process comprising:
reacting, in a plug flow reactor having a fixed bed containing a solid catalyst comprising a heterogeneous ion exchange resin,
hydrogen sulfide and ethylene oxide in the presence of the solid catalyst to yield a reaction product comprising beta-mercaptoethanol,
wherein during steady state operation of the reactor, the hydrogen sulfide and the ethylene oxide are present in a mole ratio
in a range of about 9:1 to about 20:1, wherein an effluent of the reactor comprises the reaction product, wherein after a
single pass through the reactor a conversion of ethylene oxide to the reaction product is greater than about 99 wt. % and
the reaction product in the effluent further comprises less than about 0.5 wt. % thiodiglycol on a hydrogen sulfide-free basis,
wherein the conversion of ethylene oxide to the reaction product is based on a weight of the ethylene oxide that converts
to the reaction product divided by a weight of the ethylene oxide fed to the reactor.

US Pat. No. 9,714,204

PROCESS FOR PURIFYING ETHYLENE PRODUCED FROM A METHANOL-TO-OLEFINS FACILITY

Chevron Phillips Chemical...

1. A process for purifying an olefin stream comprising at least 99 mol % ethylene, wherein the process comprises:
(a) passing the olefin stream through a sulfur guard bed to remove sulfur compounds and to yield a substantially sulfur-free
effluent;

(b) contacting the substantially sulfur-free effluent from (a) with a hydrogenation catalyst to yield a substantially sulfur-,
oxygen-, acetylene-, methyl acetylene-, and propadiene-free effluent;

(c) passing the substantially sulfur-, oxygen-, acetylene-, methyl acetylene-, and propadiene-free effluent from (b) through
a copper-metal containing catalyst bed to remove carbon monoxide and hydrogen and to yield a substantially sulfur-, oxygen-,
acetylene-, methyl acetylene-, propadiene-, carbon monoxide-, and hydrogen-free effluent; and

(d) passing the substantially sulfur-, oxygen-, acetylene-, methyl acetylene-, propadiene-, carbon monoxide-, and hydrogen-free
effluent from (c) through a desiccant comprising alumina, molecular sieve, or a hybrid alumina-zeolite composite to remove
polar contaminants and yield a purified ethylene stream comprising greater than or equal to 99.875 mol % ethylene.

US Pat. No. 9,708,426

LIQUID-SOLID SAMPLING SYSTEM FOR A LOOP SLURRY REACTOR

Chevron Phillips Chemical...

1. A process for operating a polymerization reactor system, the process comprising:
(I) contacting a transition metal-based catalyst system with an olefin monomer and an optional olefin comonomer in a loop
slurry reactor within the polymerization reactor system under polymerization reaction conditions to produce an olefin polymer,
the loop slurry reactor containing a liquid-solid mixture;

(II) measuring a property of the liquid in the loop slurry reactor via a method comprising the steps of:
(i) withdrawing a sample of the liquid-solid mixture from the loop slurry reactor;
(ii) flowing the sample of the liquid-solid mixture through a vertical settling tube;
(iii) periodically stopping the flow of the sample of the liquid-solid mixture in the tube for a time period sufficient for
the solid to settle to a bottom portion of the tube and for the liquid to occupy an upper portion of the tube;

(iv) removing a small fraction of the liquid in the upper portion of the tube and transferring the small fraction of the liquid
to an analytical instrument for measuring the property of the liquid;

(v) restoring flow through the tube; and
(vi) returning an unused fraction of the sample of the liquid-solid mixture to the loop slurry reactor; and
(III) when the property of the liquid in the loop slurry reactor has reached a predetermined level, adjusting a polymerization
reaction condition.

US Pat. No. 9,708,549

METHOD FOR MAKING POLYALPHAOLEFINS USING ALUMINUM HALIDE CATALYZED OLIGOMERIZATION OF OLEFINS

Chevron Phillips Chemical...

1. A process comprising:
contacting
1) a catalyst mixture comprising i) an aluminum trihalide and ii) an organic liquid carrier comprising first olefins, wherein
the organic liquid carrier first olefins comprise at least 60 mole % 1,2-disubstituted olefins; and

2) a monomer comprising second olefins
to form an oligomer product.
US Pat. No. 9,701,823

POLYMERIC BLENDS AND METHODS OF USING SAME

Chevron Phillips Chemical...

1. A composition comprising:
(i) a low density polyethylene homopolymer (LDPE), wherein the LDPE has a melt index of about 5.1 g/10 min, a melting point
of about 108° C., a Vicat softening temperature of about 100° C., and a density of about 0.923 g/cc; and

(ii) a metallocene-catalyzed linear low density copolymer of ethylene and hexene (mLLDPE), wherein the mLLDPE has a density
of about 0.914 g/cc, and a melt index of 0.9 g/10 min;

wherein the composition comprises from about 5 wt. % to about 50 wt. % of the mLLDPE based on the total weight of the composition,
and when extruded as a molten resin displays a neck-in value that is about equal to or increased by less than 10% of the neck-in
value observed when using the LDPE alone.

US Pat. No. 9,687,815

TREATER REGENERATION

Chevron Phillips Chemical...

1. A method for reducing NOx emissions when regenerating a desiccant in an off-line treater comprising:
regenerating at least a portion of the desiccant in the off-line treater using a regenerating gas which comprises a treated
recycle stream to yield a regenerating effluent stream comprising one or more impurities and the regenerating gas; and

flaring the one or more impurities obtained from the regenerating effluent stream, wherein the step of flaring produces fewer
of the NOx emissions compared to a similar method which does not use the treated recycle stream in the regenerating gas.

US Pat. No. 9,631,039

MIXED DECYL MERCAPTANS COMPOSITIONS AND USE THEREOF AS CHAIN TRANSFER AGENTS

Chevron Phillips Chemical...

1. A chain transfer agent composition comprising at least one branched C10 mercaptan selected from 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane, 2-butyl-1-mercapto-hexane,
5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane, or combinations
thereof.

US Pat. No. 9,512,071

MIXED DECYL MERCAPTANS COMPOSITIONS AND METHODS OF MAKING SAME

Chevron Phillips Chemical...

1. A composition comprising mercaptans, wherein at least about 50 wt. % of the mercaptans are 1) branched C10 mercaptans selected from the group consisting of 5-methyl-1-mercapto-nonane (represented by Structure A), 3-propyl-1-mercapto-heptane
(represented by Structure B), 4-ethyl-1-mercapto-octane (represented by Structure C), 2-butyl-1-mercapto-hexane (represented
by Structure D), 5-methyl-2-mercapto-nonane (represented by Structure E), 3-propyl-2-mercapto-heptane (represented by Structure
F), 4-ethyl-2-mercapto-octane (represented by Structure G), and combinations thereof; and 2) 5-methyl-5-mercapto-nonane (represented
by Structure H).