| abstract |
Disclosed is an acrylic rubber composition which has high processing safety and, after being subjected to secondary vulcanization (hot-air vulcanization), has sufficient mechanical properties and excellent permanent compression strain resistance. Also disclosed is a vulcanizate thereof. The acrylic rubber composition comprises (A) an epoxy group-containing acrylic rubber, (B) an imidazole compound represented by general formula (1), (C) silica, and (D) a silane coupling agent represented by general formula (2). Such an acrylic rubber composition has excellent mechanical properties such as permanent compression strain resistance and hardness. |