| abstract |
ethylenically unsaturated carboxylic acid monomer unit (a3) 0.5 to 30% by weight, the conjugated diene monomer unit (a2), and the α, β-ethylenically unsaturated carboxylic acid monomer unit (a3) (A) having an aspect ratio of 30 to 2,000 and an inorganic filler (B) having an aspect ratio of 30 to 2,000, wherein the nitrile copolymer rubber (A) and the inorganic filler B) is 1 to 200 parts by weight based on the total weight of the nitrile copolymer rubber composition. |