RUBBER COMPOSITION FOR TIRE VULCANIZATION BLADDER AND TIRE VULCANIZATION BLADDER USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a rubber composition for a tire vulcanization bladder sufficiently elongating a product life of a bladder by preventing generation of cracks and excellent in elongation during high temperature fracture, elongation during fracture after heat aging and flexural fatigue resistance and a tire vulcanization bladder using the same.SOLUTION: A rubber composition for tire vulcanization bladder is manufactured by blending 1 to 20 pts.mass of an alkylphenol formaldehyde condensation condensed body and 0.1 to 10 pts.mass of a citraconimide compound to 100 pts.mass of a rubber component containing a butyl-based rubber consisting of a butyl rubber and/or a halogenated butyl rubber of 90 pts.mass or more.SELECTED DRAWING: None