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公开(公告)号：US20230146000A1
公开(公告)日：2023-05-11
申请号：US17918371
申请日：2021-10-05
Applicant: LG CHEM, LTD.
Inventor： Jung Yun CHOI , Chul Woong KIM , Yeonju LEE , Suhyun CHO
CPC classification number: C08G63/06 , C08G63/823 , C08G63/85 , C08G63/08
Abstract: Provided is a copolymer comprising an irregularly arranged structure of a repeating unit of the following Chemical Formula 1 and a repeating unit of the following Chemical Formula 2, and a repeating unit of the following Chemical Formula 3 present at least at one end of the structure:
and is characterized by having an improved elongation and also having a high weight average molecular weight while maintaining intrinsic properties of a polylactic acid. Also provided are methods of preparing the copolymer.-
公开(公告)号：US20220267815A1
公开(公告)日：2022-08-25
申请号：US17629485
申请日：2020-09-11
Applicant: LG CHEM, LTD.
Inventor： Jung Yun CHOI , Chul Woong KIM , Sungwoon HEO , Donggyun KANG , Jae Hyung KIM , Suhyun CHO
Abstract: Provided is a method for preparing a block copolymer including a step of subjecting a lactide monomer to ring-opening polymerization in the presence of a biosynthesized poly(3-hydroxypropionate) initiator to prepare a polylactide-poly(3-hydroxypropionate) block copolymer.
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3.发明公开公开(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
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.
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公开(公告)号：US20240218115A1
公开(公告)日：2024-07-04
申请号：US18288849
申请日：2022-05-06
Applicant: LG CHEM, LTD.
Inventor： Yeonju LEE , Jung Yun CHOI , Chul Woong KIM , Suhyun CHO , Kyeongmin KIM
Abstract: A novel branched poly(3-hydroxypropionic acid)polymer of Chemical Formula 1:
R-[A-(B)n]k [Chemical Formula 1]
wherein: R is a trivalent or higher functional group derived from a polyfunctional monomer: A is a direct bond, or a linking group derived from ether, sulfide, ester, thioester, ketone, sulfoxide, sulfone, sulfonate ester, amine, amide, imine, imide, or urethane; B is a substituent of Chemical Formula 1-1 or Chemical Formula 1-2:
* is a moiety connected to A; k is an integer of 3 or more: and n is an integer of 1 to 700, and a method for preparation thereof, which makes it possible to effectively prepare a polymer that achieves an excellent production yield while maintaining the intrinsic physical properties of poly(3-hydroxypropionic acid).-
Patent Agency Ranking
5.发明公开公开(公告)号：US20240076441A1
公开(公告)日：2024-03-07
申请号：US18385786
申请日：2023-10-31
Applicant: LG CHEM, LTD.
Inventor： Yeonju LEE , Jung Yun CHOI , Donggyun KANG , Chul Woong KIM , Suhyun CHO , Harim JEON
CPC classification number: C08G63/06 , C08G63/823
Abstract: Provided is a novel a copolymer with structures including a branched poly(3-hydroxypropionic acid) and a poly(lactic acid).
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公开(公告)号：US20240343862A1
公开(公告)日：2024-10-17
申请号：US18681562
申请日：2023-01-30
Applicant: LG CHEM, LTD.
Inventor： Yeonsoo KIM , Chaegyu LEE , Myunghan LEE , Chul Woong KIM , Jeongyong LEE , Jung Yun CHOI , Suhyun CHO , So Dam JEONG
IPC: C08G63/91
CPC classification number: C08G63/912 , C08G2230/00 , C08G2250/00
Abstract: The present specification relates to a resin including a poly (lactic acid-b-3-hydroxypropionic acid) block co-polymer, a resin composition including the same, and a resin molded article.
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7.发明公开公开(公告)号：US20240228694A1
公开(公告)日：2024-07-11
申请号：US18288752
申请日：2022-05-06
Applicant: LG CHEM, LTD.
Inventor： Yeonju LEE , Jung Yun CHOI , Donggyun KANG , Chul Woong KIM , Suhyun CHO , Harim JEON
CPC classification number: C08G63/06 , C08G63/823
Abstract: Provided is a novel branched poly(lactic acid-3-hydroxypropionic acid) copolymer of Chemical Formula 1:
wherein: R is a trivalent or higher functional group derived from a polyfunctional monomer, A is a direct bond, or a linking group derived from ether, sulfide, ester, thioester, ketone, sulfoxide, sulfone, sulfonate ester, amine, amide, imine, imide, or urethane, and B is a substituent of Chemical Formula 1-1 or Chemical Formula 1-2,
where * is a moiety connected to A, k is an integer of 3 or more, n is an integer of 1 to 700, and m is an integer of 10 to 5,000. The copolymer can realize an excellent production yield while maintaining the intrinsic physical properties of poly(3-hydroxypropionic acid). Also provided is a method for preparing the copolymer.-
公开(公告)号：US20240084070A1
公开(公告)日：2024-03-14
申请号：US18385794
申请日：2023-10-31
Applicant: LG CHEM, LTD.
Inventor： Yeonju LEE , Jung Yun CHOI , Chul Woong KIM , Suhyun CHO , Kyeongmin KIM
IPC: C08G63/06
CPC classification number: C08G63/06
Abstract: Provided is a novel branched poly(3-hydroxypropionic acid)polymer.
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9.发明公开公开(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.
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