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1. (WO2017150643) RUBBER COMPOSITION, LAMINATE BODY, AND CONVEYER BELT

Pub. No.:    WO/2017/150643    International Application No.:    PCT/JP2017/008197
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 02 00:59:59 CET 2017
IPC: C08L 9/00
B32B 7/12
B32B 25/04
B65G 15/32
C08K 3/04
C08K 3/26
C08K 3/36
F16G 1/08
Applicants: BRIDGESTONE CORPORATION
株式会社ブリヂストン
Inventors: TAKANO Genho
高野 元峰
AKAMA Shuyou
赤間 秀洋
TSUNENISHI Youhei
常西 洋平
Title: RUBBER COMPOSITION, LAMINATE BODY, AND CONVEYER BELT
Abstract:
Provided is a rubber composition that does not lose adhesiveness to reinforcing materials, even when subjected to repeated bending fatigue. A rubber composition that is formed by blending: a rubber component that includes a diene rubber; wet silica; carbon black; and calcium carbonate. The blended amount of wet silica is 3 parts per mass or more per 100 parts by mass of the diene rubber. The BET specific surface area by nitrogen adsorption of the carbon black is 8-100 m2/g. When the BET specific surface area by nitrogen adsorption of the carbon black is X (m2/g) and the blended amount of calcium carbonate per 100 parts by mass of the diene rubber is Y (parts by mass), 0.5X+28≤Y≤X+88.