US Patent No. 9,201,169

COMPOUND CONTAINING CROSSLINKABLE MOIETIES, PREPOLYMER, BLEND AND POLYMER SHEET OBTAINED THEREFROM, AND WAVEGUIDE FOR OPTICAL INTERCONNECTION


Patent No. 9,201,169
Issue Date December 01, 2015
Title Compound Containing Crosslinkable Moieties, Prepolymer, Blend And Polymer Sheet Obtained Therefrom, And Waveguide For Optical Interconnection
Inventorship Seung Koo Park, Daejeon (KR)
Jung Jin Ju, Daejeon (KR)
Suntak Park, Daejeon (KR)
Jong-Moo Lee, Daejeon (KR)
Min-su Kim, Daejeon (KR)
Jin Tae Kim, Daejeon (KR)
Joong-Seon Choe, Daejeon (KR)
Assignee ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)

Claim of US Patent No. 9,201,169

1. An optical waveguide for optical interconnection comprising:
a polymer sheet comprising a crosslinked product of a prepolymer, the prepolymer prepared by condensation reaction between
a first compound represented by Formula (1) below:

Ar—H  (1),
where Ar comprises (a) a crosslinkable moiety at one end, (b) a moiety selected from the group consisting of —O—, —S—, —COO—,
—CO—, —COS—, —SO2—, and —NH—, and (c) one or two repeating units selected from the group consisting of:


 where A is carbon or nitrogen, and X is hydrogen or halogen; and
a second compound selected from the group consisting of an aromatic moiety having a structure as follows:

where y is an integer from 0 to 1000,
Y0 is selected from the group consisting of -, —O—, —S—, —COO—, —CO—, —COS—, —SO2— and —NH—,

E is selected from the group consisting of the following structures:

where Y10 is selected from the group consisting of -, —O—, —S—, —COO—, —CO—, —COS—, —SO2— and —NH—, s and t are each independently an integer from 1 to 50, u is an integer from 0 to 50, and v is an integer from
1 to 100, and

D is selected from the group consisting of the following structures:

where w and x are each independently an integer from 1 to 20.