| 摘要 |
PROBLEM TO BE SOLVED: To obtain an acrylonitrile-butadiene rubber composition having oil resistance and heat resistance and excellent in properties easily removed from metals without remaining residues. SOLUTION: The acrylonitrile-butadiene rubber is mixed with (a) an amide compound having a melting point of 100 deg.C or higher, (b) a phosphorus compound having a pH of less than 7, and (c) a phosphite compound. This formulation results in the rubber composition having oil resistance and heat resistance and excellent in properties easily removed from metals without remaining residues.
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