公开(公告)号：US20240409736A1

公开(公告)日：2024-12-12

申请号：US18016842

申请日：2022-06-30

Applicant: LG CHEM, LTD.

Inventor： Hee Jae Hwang ,  Tae Hun Kwon ,  Jae Chan Park

IPC: C08L67/02 ,  C08J3/20 ,  C08K3/34 ,  C08K5/17 ,  C08K7/14 ,  C08K13/04

Abstract: The present invention relates to a polyester resin composition and a molded article manufactured using the same. According to the present invention, hydrolysis resistance may be improved even under high-temperature and high-humidity conditions. In addition, deviation in laser beam transmittance may be minimized even when the thickness of an injection-molded article is changed, thereby achieving laser weldability. Accordingly, the polyester resin composition of the present invention may be applied to small cameras, radomes, automobile electric/electronic equipment, or telematics parts.

公开(公告)号：US20220372214A1

公开(公告)日：2022-11-24

申请号：US17630848

申请日：2021-07-08

Applicant: LG CHEM, LTD.

Inventor： Gun Ko ,  Tae Hun Kwon ,  Yiseul Jun ,  Jae Chan Park

IPC: C08G63/183 ,  C08L25/12 ,  C08L55/02 ,  B29C45/00

Abstract: A thermoplastic resin composition for automotive interior materials including 20% to 42% by weight of a polyester resin (A); 20% to 32% by weight of a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer (B); and 30% to 48% by weight of an aromatic vinyl compound-vinyl cyanide compound copolymer (C), a method of preparing the thermoplastic resin composition, and a molded article including the thermoplastic resin composition. The thermoplastic resin composition has excellent environmental stress cracking (ESC), processability, injection moldability, injection stability, and economics while maintaining mechanical properties, thermal stability, and friction noise resistance equal or superior to those of conventional heat-resistant ABS resin compositions.