	US 11,905,345 B2
	Polyethylene and chlorinated polyethylene thereof
Si Jung Lee, Daejeon (KR); Sun Mi Kim, Daejeon (KR); Cheolhwan Jeong, Daejeon (KR); Yi Young Choi, Daejeon (KR); Bog Ki Hong, Daejeon (KR); and Sunghyun Park, Daejeon (KR)
Assigned to LG Chem, Ltd., (KR)
Appl. No. 17/052,724
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Dec. 10, 2019, PCT No. PCT/KR2019/017399 § 371(c)(1), (2) Date Nov. 3, 2020, PCT Pub. No. WO2020/122562, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 10-2018-0158328 (KR), filed on Dec. 10, 2018; application No. 10-2019-0121170 (KR), filed on Sep. 30, 2019; and application No. 10-2019-0163115 (KR), filed on Dec. 9, 2019.
Prior Publication US 2021/0230323 A1, Jul. 29, 2021
Int. Cl. C08F 110/02 (2006.01); C08F 8/22 (2006.01); C08F 8/20 (2006.01); C08F 4/659 (2006.01); C08F 4/64 (2006.01); C08F 4/76 (2006.01); C08L 23/28 (2006.01); C08F 4/6592 (2006.01)

CPC C08F 110/02 (2013.01) [C08F 8/22 (2013.01); C08L 23/286 (2013.01); C08F 4/6592 (2013.01); C08F 4/76 (2013.01); C08F 8/20 (2013.01); C08F 2500/07 (2013.01); C08F 2500/12 (2013.01); C08F 2500/18 (2013.01); C08F 2810/20 (2013.01)]

20 Claims

1. A polyethylene satisfying the following conditions 1) to 4):

1) a relaxation time is 2 seconds or less,

2) a melt index MI₅(a melt index of the polyethylene measured at a temperature of 190° C. under a load of 5 kg in accordance with ASTM D 1238) is 0.75 g/10 min to 1.2 g/10 min,

3) a melt flow rate ratio (MFRR_21.6/5, a value obtained by dividing the melt index measured at 190° C. under a load of 21.6 kg by the melt index measured at 190° C. under a load of 5 kg in accordance with ASTM D 1238) is 9.5 to 12.5, and

4) a density is 0.947 g/cm³to 0.954 g/cm³.