公开(公告)号：US20230312900A1

公开(公告)日：2023-10-05

申请号：US18183420

申请日：2023-03-14

Applicant: TOYODA GOSEI CO., LTD.

Inventor： Koki TANAKA ,  Yasushi NIMI ,  Kazuyoshi FUJIMOTO

IPC: C08L25/06 ,  C08J9/232

CPC classification number: C08L25/06 ,  C08J9/232 ,  C08J2203/22 ,  C08J2203/182 ,  C08J2325/10 ,  C08J2423/16

Abstract: A foamable resin composition includes a styrenic thermoplastic elastomer and a dynamically crosslinked thermoplastic elastomer in a total amount of 100 parts by mass. An amount of the dynamically crosslinked thermoplastic elastomer is 10 to 40 parts by mass. The composition further includes high-temperature expandable microcapsules and low-temperature expandable microcapsules in a total amount of 25 to 50 parts by mass relative to 100 parts by mass of the elastomers, and an amount of the low-temperature expandable microcapsules is 17 to 67% by mass relative to the total amount of the two types of microcapsules.