公开(公告)号：US20240052157A1

公开(公告)日：2024-02-15

申请号：US18259187

申请日：2021-12-20

Applicant: ENEOS Corporation

Inventor： Hiroaki MURAKAMI ,  Kousuke YAMAKI ,  Keisuke CHINO ,  Akane SAKAI

IPC: C08L53/02 ,  C08L23/12 ,  C08L23/26 ,  C08L23/08 ,  C08K5/14 ,  C08K5/098

CPC classification number: C08L53/02 ,  C08L23/12 ,  C08L23/26 ,  C08L23/0815 ,  C08K5/14 ,  C08K5/098 ,  C08L2207/04 ,  C08L2312/00 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2203/30

Abstract: The invention provides a thermoplastic elastomer composition that includes a resin component and an additive, in which the resin component includes a styrene-based block copolymer containing a covalently crosslinked part, and a polyolefin having a weight average molecular weight of 80,000 to 500,000, a content of the styrene-based block copolymer is 40%-95% by mass relative to the entire resin component, and a content of the polyolefin is 5%-60% by mass relative to the entire resin component; and the additive includes an acid-modified compound having a weight average molecular weight of 1,000 or more and less than 80,000 and having a functional group derived from a carboxylic acid- and/or its derivative, and/or a polyester compound, and a crosslinking agent capable of crosslinking at least one of the styrene-based block copolymer and the polyolefin.