公开(公告)号：US20230279215A1

公开(公告)日：2023-09-07

申请号：US18016127

申请日：2022-02-24

Applicant: LG CHEM, LTD.

Inventor： Jung Yun CHOI ,  Yeonju LEE ,  Solyi PARK ,  Suhyun CHO ,  Donggyun KANG ,  Chul Woong KIM ,  Eungwon KIM ,  Jung Hyun JO

IPC: C08L53/00

CPC classification number: C08L53/00

Abstract: Provided is a poly(lactic acid-b-3-hydroxypropionic acid) block copolymer, in which various physical properties of polylactic acid, such as tensile strength, etc., are improved by introducing a 3-hydroxypropionic acid-derived monomer into polylactic acid, and thus the application fields in which the polylactic acid can be used is expanded.

公开(公告)号：US20240417512A1

公开(公告)日：2024-12-19

申请号：US18815579

申请日：2024-08-26

Applicant: LG Chem, Ltd.

Inventor： Banseok CHOI ,  Jung Yun CHOI ,  Chul Woong KIM ,  Sungwoon HEO ,  Eungwon KIM ,  Donggyun KANG

IPC: C08G63/08 ,  B29B7/38 ,  B29K67/00 ,  B29K96/04 ,  B29K105/00 ,  B29K105/06 ,  C08J3/20

Abstract: A biopolymer composition, a preparation method for the same, and a bioplastic using the same, the biopolymer composition comprising at least 83.5 weight % of a copolymer resin of lactic acid (LA) and 3-hydroxypropionate (3HP), an antioxidant, and a lubricant, and the composition having an elongation percentage of at least 90% but not greater than 500%.

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.

公开(公告)号：US20220282030A1

公开(公告)日：2022-09-08

申请号：US17631057

申请日：2020-09-16

Applicant: LG CHEM, LTD.

Inventor： Banseok CHOI ,  Jung Yun CHOI ,  Chul Woong KIM ,  Sungwoon HEO ,  Eungwon KIM ,  Donggyun KANG

IPC: C08G63/08 ,  C08J3/20

Abstract: Provided is a biopolymer composition, a preparation method for the same, and a bioplastic using the same, the biopolymer composition comprising at least 83.5 weight% of a copolymer resin of lactic acid (LA) and 3- hydroxypropionate (3HP), an antioxidant, and a lubricant, and the composition having an elongation percentage of at least 90% but not greater than 500%.