| abstract |
The present invention provides an acrylic rubber composition that is a peroxide-crosslinkable acrylic rubber and has a high vulcanization rate and can give a vulcanizate having excellent normal properties and compression set resistance. SOLUTION: 100 parts by weight of acrylic rubber having a copolymer composition comprising 20 to 80% by weight of alkyl (meth) acrylate and 80 to 20% by weight of (meth) acrylate having an ether group forming a side chain, an average particle size of 50 ～100Myuemu, iodine adsorption amount 20-30 mg / g, nitrogen adsorption specific surface area 20 to 30 m 2 / g, DBP oil absorption 100 cm 3/100 g or more of the carbon black 10 to 200 parts by weight, an organic peroxide 0.2 to 10 parts by weight and An acrylic rubber composition containing 0.2 to 15 parts by weight of a bismaleimide compound. [Selection figure] None |