| abstract |
PROBLEM TO BE SOLVED: To provide an acrylic rubber or a blend of an acrylic rubber and a fluororubber with a crosslinking means capable of maximizing the excellent physical properties of these polymers, especially excellent heat aging performance, furthermore, normal physical properties and compression. A crosslinking means is provided that retains permanent set. SOLUTION: A peroxide vulcanizable acrylic rubber or a mixture thereof with a peroxide vulcanizable fluorine rubber, an organic peracid, and a quinonedioxime compound, A crosslinking aid selected from the group consisting of xylylenebisdiallyl and dimaleimide compounds is blended. |