Acrylic rubber composition and crosslinked product
AssigneeZeon Corporation
InventorsYoshiaki Aimura, Kiyonori Umetsu, Hirofumi Masuda
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Abstract
An acrylic rubber composition comprising a carboxyl group-containing acrylic rubber (A) comprising 0.1 to 30% by weight of structural units derived from methacrylonitrile, and a polyamine crosslinking agent (B) and a monoamine compound (C); wherein the amount of each of the crosslinking agents (B) and the monoamine compound (C) is in the range of 0.05 to 20 parts by weight based on 100 parts by weight of the acrylic rubber (A). This acrylic rubber composition is free from sticking to a metal at kneading and exhibits good resistance to scorch during being processed, and gives a crosslinked product having good heat resistance, good cold resistance and good resistance to deteriorated oil.
Claims16
An acrylic rubber composition comprising a carboxyl group-containing acrylic rubber (A) comprising 0.1 to 30% by weight of structural units derived from methacrylonitrile, a polyamine crosslinking agent (B) and at least one monoamine compound (C), the at least one monoamine compound (C) being a combination of an aliphatic secondary monoamine compound with an aliphatic tertiary monoamine compound, or a primary monoamine compound;
- wherein an amount of each of the crosslinking agents (B) and the monoamine compound (C) is in a range of 0.05 to 20 parts by weight based on 100 parts by weight of the acrylic rubber (A).
Dependencies are inferred from the claim text.