公开(公告)号：US20210379877A1

公开(公告)日：2021-12-09

申请号：US17285637

申请日：2019-10-15

Applicant: OSAKA UNIVERSITY ,  TOYODA GOSEI CO., LTD.

Inventor： Shinji TAKANO ,  Koya MATSUNO ,  Yoshinori NAGAMORI ,  Akira HARADA ,  Yoshinori TAKASHIMA ,  Motofumi OSAKI ,  Katsunari INOUE

IPC: B32B27/28 ,  C08J7/12 ,  B32B27/08 ,  B32B37/10 ,  B32B37/06

Abstract: To provide a polyrotaxane composite formed body produced by strong bonding between a crosslinked polyrotaxane formed body and an elastomer formed body without intervention of an adhesive.
Provided is a method for producing a polyrotaxane composite formed body, the method including subjecting a surface of a crosslinked polyrotaxane formed body and a surface of an elastomer formed body to plasma treatment, and pressure joining the treated surfaces together, to thereby bond the formed bodies. Also provided is a polyrotaxane composite formed body including a crosslinked polyrotaxane formed body and an elastomer formed body, wherein these formed bodies are directly bonded together without being intermingled with each other in the absence of an adhesive layer between the formed bodies, an oxygen-rich layer is present between the bonding surfaces of the formed bodies, and the formed bodies exhibit a peel strength of 1 N/m or more.