ACRYLIC RUBBER COMPOSITION, VULCANIZED RUBBER THEREFROM AND USE THEREOF

摘要

An acrylic rubber composition and vulcanized rubber that ensure heat resisting properties of vulcanized rubber, especially less changes in the elongation at break (EB) and hardness of vulcanized rubber in heating conditions. The acrylic rubber composition comprises a carboxylated acrylic rubber and, per 100 parts by mass thereof, 10 to 100 parts by mass of carbon black, 0.1 to 15 parts by mass of at least one primary antioxidant selected from among an amine antioxidant and a phenolic antioxidant and 0.1 to 15 parts by mass of at least one secondary antioxidant selected from among a phosphorus antioxidant and a sulfur antioxidant.