US Patent No. 9,540,466

ETHYLENE-BASED QUATERPOLYMER HAVING LOW GLASS TRANSITION TEMPERATURE AND PREPARATION METHOD THEREOF


Patent No. 9,540,466
Issue Date January 10,2017
Title Ethylene-based Quaterpolymer Having Low Glass Transition Temperature And Preparation Method Thereof
Inventorship Dong Hyun Kim, Gwacheon-si (KR)
Jung Soo Kim, Wonju-si (KR)
Dong Gyu Jeon, Incheon (KR)
Ji Hoon Jang, Ansan-si (KR)
Assignee Korea Institute of Industrial Technology, Cheonan-Si (KR)

Claim of US Patent No. 9,540,466

1. An elastic, ethylene-based quaterpolymer comprising:
55-93.9 mol % of an ethylene unit;
3-40 mol % of a C4-6 ?-olefin unit;

3-40 mol % of a C8-12 ?-olefin unit; and

0.1-5 mol % of a functional unit derived from at least one styrene-based monomer,
the ethylene-based quaterpolymer having a weight-average molecular weight of 50,000-300,000 and a glass transition temperature
between ?40° C. and ?80° C.