公开(公告)号：US20240343858A1

公开(公告)日：2024-10-17

申请号：US18293494

申请日：2022-08-24

Applicant: LG CHEM, LTD.

Inventor： Harim JEON ,  Jung Yun CHOI ,  Dongcheol CHOE ,  Chul Woong KIM ,  Yulliana KIM ,  Suhyun CHO ,  Yongbok JEONG ,  Hokeun LEE

IPC: C08G63/06 ,  C08G63/78

CPC classification number: C08G63/06 ,  C08G63/78

Abstract: A poly(lactic acid-b-3-hydroxypropionic acid) block copolymer characterized in that mechanical properties of the block copolymer are excellent by introducing a lactide optical isomer-derived repeating unit and a poly(3-hydroxypropionic acid) repeating unit at the same time, and thus its application fields can be expanded.

公开(公告)号：US20240010788A1

公开(公告)日：2024-01-11

申请号：US18039676

申请日：2022-08-26

Applicant: LG CHEM, LTD.

Inventor： Hokeun LEE ,  Donggyun KANG ,  Eungwon KIM ,  Chul Woong KIM ,  Sai Bom PARK ,  Yeonju LEE ,  Jung Hyun JO ,  Jung Yun CHOI ,  Song Yi BAEK ,  Ju Yong LEE

IPC: C08G63/06 ,  C08G63/85 ,  C08G63/91

CPC classification number: C08G63/06 ,  C08G63/85 ,  C08G63/912 ,  C08G2261/75 ,  C08G2230/00

Abstract: Provided is a block copolymer of Formula 1:




wherein in Formula 1: R1 and R2 are each independently hydrogen, N, O, S, or substituted or unsubstituted C1-20 alkyl: X1 and X2 are each independently a direct bond, —COO—, —NR′CO—, —(NR′)(COO)—, —R′NCONR′—, or —OCOO—, wherein the R's are each independently hydrogen or C1-20 alkyl; L is a direct bond, substituted or unsubstituted C1-10 alkylene, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing one or more heteroatoms selected from the group consisting of N, O, and S; and n and m are each independently an integer of 1 to 10,000. The block copolymer has excellent mechanical properties along with environmental friendliness and biodegradability.