| 摘要 |
Provided is a tire bladder made of an acrylic rubber composition which is superior in processing safety and mechanical characteristics, and further exhibits large stretchability in a high temperature atmosphere. A tire bladder comprises at least an acrylic rubber composition in which 30 to 200 weight parts of carbon black having an arithmetic average particle diameter of 20 to 30 nm measured on the basis of JIS-Z8901 and a DBP oil absorption of 70 to 130 ml/100 g, 0.1 to 5 weight parts of imidazole compound as an antioxidant, and 0.1 to 10 weight parts of polyamine compound as a vulcanizing agent, per 100 weight parts of acrylic rubber which contains 94.5 to 99.5 % by weight of structural unit derived from (meta) alkyl acrylate, and 0.5 to 3 % by weight of a monoalkyl maleate unit and/or a structural unit derived from mono-alkoxyalkyl maleate. |
