US 12,234,307 B2
Ethylene/alpha-olefin copolymer and method for preparing the same
Young Woo Lee, Daejeon (KR); Seul Ki Kim, Daejeon (KR); Dae Woong Lee, Daejeon (KR); Jin Kuk Lee, Daejeon (KR); Eun Jung Lee, Daejeon (KR); Jin Sam Gong, Daejeon (KR); Jung Ho Jun, Daejeon (KR); and Jun Hyuk Lee, Daejeon (KR)
Assigned to LG Chem, Ltd., Seoul (KR)
Appl. No. 17/430,909
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Sep. 25, 2020, PCT No. PCT/KR2020/013077
§ 371(c)(1), (2) Date Aug. 13, 2021,
PCT Pub. No. WO2021/060917, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 10-2019-0120125 (KR), filed on Sep. 27, 2019.
Prior Publication US 2022/0081501 A1, Mar. 17, 2022
Int. Cl. C08F 210/16 (2006.01); C08J 5/18 (2006.01); C08L 23/06 (2006.01); C08L 23/08 (2006.01); C08L 23/0807 (2025.01)
CPC C08F 210/16 (2013.01) [C08J 5/18 (2013.01); C08L 23/06 (2013.01); C08J 2323/08 (2013.01); C08L 23/08 (2013.01); C08L 23/0815 (2013.01); C08L 2203/206 (2013.01)] 14 Claims
 
1. An ethylene/alpha-olefin copolymer satisfying the following conditions (a) to (c):
(a) a characteristic relaxation time at 190° C. in shear rate conditions of 0.1 to 500 rad/s, is less than 10.0 millisecond;
(b) a weight average molecular weight is from 40,000 to 150,000 g/mol; and
(c) a molecular weight distribution is from 1.5 to 2.5,
wherein the ethylene/alpha-olefin copolymer has a density from 0.850 to 0.910 g/cc.