Patent ID: 7959530
Filing Date: 2011-06-14
Classification: C08K,C08L

Abstract:
1. A drive belt which contains a radical cross-linked rubber mixture, wherein the rubber mixture comprises: (a) 0.1 to 50 phr (parts by weight, based on 100 parts by weight of all rubbers in the mixture) of at least one carboxyl group-containing carboxylic acid, which is at least α, β unsaturated and γ,δ unsaturated; and, (b) as co-activator, 0.1 to 50 phr of at least one salt-former, a metal-containing compound reactive with such carboxyl groups to form salt bridges therebetween, wherein the rubber mixture contains at least one of an ethylene-propylene-diene rubber (EPDM), ethylene-propylene rubber (EPM) or hydrogenated nitrile rubber.