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1. (WO2017038527) RUBBER COMPOSITION FOR VULCANIZATION BLADDER AND VULCANIZATION BLADDER

Pub. No.:    WO/2017/038527    International Application No.:    PCT/JP2016/074364
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Tue Aug 23 01:59:59 CEST 2016
IPC: C08L 23/22
B29C 33/12
B29C 35/02
C08K 3/04
C08K 3/22
C08L 11/00
C08L 45/00
C08L 65/00
Applicants: SUMITOMO RUBBER INDUSTRIES, LTD.
住友ゴム工業株式会社
Inventors: TAKAGI, Keiji
高木 啓治
MIYAZAKI, Tatsuya
宮崎 達也
Title: RUBBER COMPOSITION FOR VULCANIZATION BLADDER AND VULCANIZATION BLADDER
Abstract:
Provided are a rubber composition for a vulcanization bladder having excellent thermal conductivity, and a vulcanization bladder constructed from the rubber composition, wherein the vulcanization bladder makes it possible to improve the vulcanization production efficiency. A rubber composition for a vulcanization bladder containing 20-200 parts by mass of at least one metal filler having a Mohs hardness of 8 or lower and an average particle size of 0.3-50 μm, selected from the group consisting of metal powders, metal oxide powders, metal hydroxide powders, and metal nitride powders, and 20-80 parts by mass of carbon black, per 100 parts by mass of a rubber component including 80 mass% or more of butyl rubber; and a vulcanization bladder constructed from the rubber composition for a vulcanization bladder.