公开(公告)号：US20240247143A1

公开(公告)日：2024-07-25

申请号：US18021105

申请日：2022-08-12

Applicant: LG CHEM, LTD.

Inventor： Sungmoon CHOI ,  Kyuyoung KIM ,  Soojin SIM ,  Ho Joon PARK ,  Sun Mo SON

IPC: C08L67/02 ,  C08J3/00

CPC classification number: C08L67/02 ,  C08J3/005 ,  C08J2367/02 ,  C08J2423/08 ,  C08J2423/26 ,  C08L2207/04

Abstract: Provided is a thermoplastic polyester elastomer resin composition, a method of preparing the polyester elastomer resin composition, and a molded article including the polyester elastomer resin composition. The thermoplastic polyester elastomer resin composition includes 89 to 96 wt % of a thermoplastic polyester elastomer resin (A); 1.5 to 5.5 wt % of a glycidyl group-modified olefin-based rubber polymer (B); and 1.5 to 5.5 wt % of an ionomer resin (C). The thermoplastic polyester elastomer resin composition has excellent mechanical properties and moldability; is capable of suppressing occurrence of flow marks on the inner surface of a molded article; and thus is applicable to a constant velocity joint boot.