公开(公告)号：US20190283287A1

公开(公告)日：2019-09-19

申请号：US16342418

申请日：2017-10-10

Applicant: JSP Corporation

Inventor： Yoshihisa OGAKI

IPC: B29C44/44 ,  B29C44/02 ,  B29C44/60 ,  B29C67/20 ,  C08J9/232 ,  C08J9/16

Abstract: The present invention relates to a method for producing an expanded beads molded article including performing in-mold molding by a molding method of filling expanded thermoplastic elastomer beads in a mold in a compressed state, in which expanded thermoplastic elastomer beads having a particular bulk density and a particular closed cell ratio are used, and a particular relationship between the internal pressure of the expanded beads and the compression filling ratio is satisfied. According to the method, an expanded thermoplastic elastomer beads molded article excellent in appearance, excellent in dimensional stability, and excellent in fusion bondability, compression characteristics, and rebound resilience of the expanded beads can be produced.