Patent ID: 7169856
Filing Date: 2007-01-30
Classification: C08F,C08K,C08L,C09K

Abstract:
1. A vulcanizable acrylic rubber composition comprising: (A) 100 parts by weight of an acrylic rubber comprising units of an acrylic acid ester monomer (a) and units of a carboxyl group-containing ethylenically unsaturated monomer (b), (B) 0.05 to 5 parts by weight of a primary polyamine vulcanizing agent, and (C) 0.5 to 5.5 parts by weight of at least one aliphatic monoamine compound selected from aliphatic secondary monoamine compounds (C-1); wherein the sum in amount of the monomer (a) units plus the monomer (b) units in the acrylic rubber (A) is at least 80% by weight based on the weight of the total monomer units, and the ratio in amount of the monomer (a) units to the sum of the monomer (a) units plus the monomer (b) units is in the range of 90 to 99.9% by weight.