公开(公告)号：US20240209192A1

公开(公告)日：2024-06-27

申请号：US18551866

申请日：2022-03-22

Applicant: BRIDGESTONE CORPORATION

Inventor： Kazunori KANEDA ,  Junichi YAMAGISHI ,  Kosuke SAITO

IPC: C08L21/00 ,  B60C1/00 ,  C08K3/013 ,  C08K3/04 ,  C08K3/36 ,  C08K5/09 ,  C08K5/25 ,  C08K5/3415 ,  C08K5/41 ,  C08K5/55

CPC classification number: C08L21/00 ,  B60C1/00 ,  C08K3/013 ,  C08K3/04 ,  C08K3/36 ,  C08K5/09 ,  C08K5/25 ,  C08K5/3415 ,  C08K5/41 ,  C08K5/55

Abstract: A rubber composition comprises: a rubber component; 0.01 parts by mass or more of a rubber-metal adhesion promoter per 100 parts by mass of the rubber component, the rubber-metal adhesion promoter containing at least one selected from the group consisting of a carboxylic acid metal salt (1) having a carbon number of 2 to 25 and a metal species selected from the group consisting of bismuth, copper, antimony, silver, niobium, and zirconium and a compound (2) represented by formula (A); and 4,4′-diphenylmethanebismaleimide. The use of the rubber composition enables obtainment of vulcanized rubber having 10 good deterioration resistance, excellent durability, and excellent rubber-metal thermal deterioration adhesiveness.