| abstract |
Containing nitrile rubber (a) having an iodine value of 120 or less and a diurethane compound (b) represented by the following general formula (1), wherein the content of the diurethane compound (b) A rubber cross-linked product obtained by crosslinking a nitrile rubber composition having 5 to 15 parts by weight per 100 parts by weight of a rubber cross-linked product (a) having a tensile strength of 15 MPa or more and a elongation at break of 300% or more as measured in accordance with JIS K6251 . (Wherein the general formula (1), R 1 is C 1 -C 20 linear or branched divalent aliphatic alkylene group of the type, a bivalent alicyclic cycloalkyl alkyl group, or an aromatic divalent group, R 2 is, X 1 is -CH 2 -, -CH 2 CH 2 -, or a chemical mono-bond, and X 2 is -SO 2 -, or chemical alone.) |