BLADDER FOR TIRE VULCANIZATION
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United States of America Patent
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Issued Date -
Dec 10, 2015
app pub date -
Jan 16, 2014
filing date -
Jan 17, 2013
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Abstract
Provided is a bladder for tire vulcanization superior in heat resistance and having a service time longer than before. A bladder for tire vulcanization prepared from an acrylic rubber composition at least comprising 100 parts by mass of an acrylic rubber containing structural units derived from (meth)acrylic acid alkyl ester in an amount of 94.5 to 99.5 mass % and structural units derived from (meth)acrylic acid alkyl ether in an amount of 0.5 to 5 mass %, 30 to 200 parts by mass of a carbon black having an arithmetical mean particle diameter, as determined according to JIS Z8901, of 20 to 30 nm and a DBP oil absorption of 70 to 130 ml/100 g, and 0.1 to 5 parts by mass of an imidazole compound as crosslinking agent.
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