Patent ID: 6268417
Filing Date: 2001-07-31
Classification: C08F,C08K,C08L

Abstract:
A rubber composition comprising:(1) 100 parts by mass of a copolymer rubber having an iodine value of 15 or less containing, in polymer chain, 10 to 45% by mass of a unit portion (Y portion: VCN) from unsaturated nitrile, 0 to 5% by mass of a unit portion (Z portion: C.dbd.C) from conjugated diene and 90 to 50% by mass of a unit portion (X portion: C--C) obtained by hydrogenating the unit portion from an ethylenically unsaturated monomer other than unsaturated nitrile and/or from conjugated diene;(2) 1 to 10 parts by mass of an organic peroxide;(3) 0.1 to 15 parts by mass of 2,4-dimercapto-6- substituted-1,3,5-triazine represented by the following formula 1: ##STR2##wherein R represents a group selected from the group consisting of mercapto group, alkoxy group, monoalkylamino group, dialkylamino group, monocycloalkylamino group, dicycloalkylamino group and N-alkyl-N-arylamino group; and(4) 1 to 100 parts by mass of an organic peroxide-crosslinkable polymer having an epoxy group.