| 摘要 |
Provided is a tire bladder of an acrylic rubber composition which is superior in processing safety and mechanical characteristics and further exhibits high elongation in a high temperature atmosphere. A tire bladder of an acrylic rubber composition comprising: 100 parts by mass of an acrylic rubber containing 94.5 to 99.5 mass % of an alkyl (meth)acrylate-derived structural unit and 0.5 to 3 mass % of a monoalkyl maleate and/or monoalkoxyalkyl maleate-derived structural unit; 30 to 200 parts by mass of a carbon black having an arithmetic average 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; 0.1 to 5 parts by mass of an imidazole compound as antioxidant and 0.1 to 10 parts by mass of a polyamine compound as vulcanizing agent.
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