公开(公告)号：US20240368346A1

公开(公告)日：2024-11-07

申请号：US18576734

申请日：2023-05-11

Applicant: LG CHEM, LTD.

Inventor： Dayoung LEE ,  Youngwook SON ,  Hyong Min BAHN ,  Yeji YU

IPC: C08G64/12 ,  C08G64/30

Abstract: The present disclosure relates to a polycarbonate copolymer, and can provide a polycarbonate copolymer that includes a repeating unit having a specific structure, thereby being improved particularly in heat resistance.

公开(公告)号：US20220251056A1

公开(公告)日：2022-08-11

申请号：US17611057

申请日：2020-09-03

Applicant: LG CHEM, LTD.

Inventor： Dayoung LEE ,  Ki Jae LEE ,  Mooho HONG ,  Young Young HWANG ,  Youngwook SON ,  Daehyeon HWANG

IPC: C07D307/68 ,  C07D333/38 ,  C08G64/24 ,  C08G64/08 ,  C08G63/64 ,  C08G64/30

Abstract: Provided are a diol compound which may be used to prepare a polycarbonate having excellent weather resistance, hardness, heat resistance, transparency, impact resistance, etc. while having excellent mechanical properties, a polycarbonate prepared by using the same, and a preparation method thereof.

公开(公告)号：US20240018301A1

公开(公告)日：2024-01-18

申请号：US18039906

申请日：2022-06-08

Applicant: LG CHEM, LTD.

Inventor： Dayoung LEE ,  Youngwook SON ,  Hyong Min BAHN

IPC: C08G63/64 ,  C08G63/87

CPC classification number: C08G63/64 ,  C08G63/87

Abstract: Provided is a polycarbonate copolymer having improved surface hardness while maintaining impact strength. The polycarbonate copolymer including a specific ester repeating unit according to the present disclosure is characterized by having excellent surface hardness while maintaining intrinsic basic physical properties of polycarbonate.

公开(公告)号：US20230348714A1

公开(公告)日：2023-11-02

申请号：US18026320

申请日：2022-06-09

Applicant: LG CHEM, LTD.

Inventor： Youngwook SON ,  Dayoung LEE ,  Hyong Min BAHN

IPC: C08L69/00

CPC classification number: C08L69/00

Abstract: A polycarbonate compound composition and a method of preparing the same are provided. The polycarbonate compound composition comprises a polycarbonate including a repeating unit represented by Formula 1, and a polymer including a repeating unit represented by the following Formula 2, and has improved surface hardness while maintaining high impact strength.