	US 11,926,702 B2
	Polyamide block copolymer and polyamide film including the same
Bi Oh Ryu, Daejeon (KR); Soonyong Park, Daejeon (KR); Youngseok Park, Daejeon (KR); Kwanyeol Paek, Daejeon (KR); Young Ji Tae, Daejeon (KR); and Il Hwan Choi, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 16/969,884
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Apr. 2, 2019, PCT No. PCT/KR2019/003884 § 371(c)(1), (2) Date Aug. 13, 2020, PCT Pub. No. WO2019/194542, PCT Pub. Date Oct. 10, 2019.
Claims priority of application No. 10-2018-0038120 (KR), filed on Apr. 2, 2018.
Prior Publication US 2020/0407501 A1, Dec. 31, 2020
Int. Cl. C08G 69/32 (2006.01); C08L 77/10 (2006.01); B32B 27/08 (2006.01); B32B 27/34 (2006.01); C08J 5/18 (2006.01)

CPC C08G 69/32 (2013.01) [C08L 77/10 (2013.01); B32B 27/08 (2013.01); B32B 27/34 (2013.01); B32B 2377/00 (2013.01); C08J 5/18 (2013.01); C08L 2201/10 (2013.01); C08L 2203/16 (2013.01)]

11 Claims

1. A polyamide block copolymer, comprising

A) an amide bond by an aromatic diamino group and a benzene-dicarbonyl group, and

b1) a first polyamide segment, wherein a ratio of a benzene-1,3-dicarbonyl group to a total of the benzene-1,3-dicarbonyl group and a benzene-1,4-dicarbonyl group is 2 mol % to 20 mol %, and

b2) a second polyamide segment, wherein a ratio of the benzene-1,3-dicarbonyl group to a total of the benzene-1,3-dicarbonyl group and the benzene-1,4-dicarbonyl group is more than 20 mol % and 40 mol % or less,

C) wherein a molar ratio of the first polyamide segment to the second polyamide segment is 1:0.5 to 1:10.