Patent ID: 9650452
Date: 2017-05-16
CPC Classifications: C08F,C08K

Claim:
1. A vulcanizable composition comprising: (i) at least one nitrile rubber containing epoxy groups and comprising repeat units derived from at least one conjugated diene, at least one α,β-unsaturated nitrile, and at least one monomer which contains epoxy groups, but not from a nonconjugated cyclic polyene, wherein the monomer which contains epoxy groups is selected from the group consisting of 2-ethylglycidyl acrylate, 2-ethylglycidyl methacrylate, 2-(n-propyl)glycidyl acrylate, 2-(n-propyl)glycidyl methacrylate, 2-(n-butyl)glycidyl acrylate, 2-(n-butyl)glycidyl methacrylate, glycidyl methacrylate, glycidylmethyl methacrylate, glycidyl acrylate, (3′,4′-epoxyheptyl)-2-ethyl acrylate, (3′,4′-epoxyheptyl)-2-ethyl methacrylate, 6′,7′-epoxyheptyl acrylate, 6′,7′-epoxyheptyl methacrylate, allyl glycidyl ether, allyl 3,4-epoxyheptyl ether, 6,7-epoxyheptyl allyl ether, vinyl glycidyl ether, vinyl 3,4-epoxyheptyl ether, 3,4-epoxyheptyl vinyl ether, 6,7-epoxyheptyl vinyl ether, o-vinylbenzyl glycidyl ether, m-vinylbenzyl glycidyl ether, p-vinylbenzyl glycidyl ether, and 3-vinylcyclohexene oxide; (ii) at least one crosslinker comprising at least one of: (iii) crosslinkers other than those specified under (ii) in an amount of 0 to 2.5 parts by weight, based on 100 parts by weight of the nitrile rubber (i).