ACRYLIC RUBBER COMPOSITION, CROSSLINKABLE ACRYLIC RUBBER COMPOSITION, AND CROSSLINKED OBJECT OBTAINED THEREFROM

摘要

An acrylic rubber composition obtained by compounding 100 parts by weight of (a) a carboxylated acrylic rubber with 0.3 to 8 parts by weight of (b) an aromatic secondary amine compound and 0.3 to 8 parts by weight of (c) a nickel dialkyldithiocarbamate; a crosslinkable acrylic rubber composition obtained by incorporating 0.1 to 10 parts by weight of a crosslinking agent into the acrylic rubber composition; and a crosslinked object obtained by crosslinking the crosslinkable acrylic rubber composition. The crosslinked object has excellent heat resistance and changes little in elongation especially in a high-temperature atmosphere.