RUBBER COMPOSITION ALLOWING TO OBTAIN A VULCANIZATE RESISTANT TO OZONE AND TO PETROLEUM PRODUCTS

摘要

The invention relates to a rubber composition making it possible to obtain a vulcanizate having an improved resistance to ozone cracking and resistance to petroleum products. /P P The composition of the invention consists of 1) a partially hydrogenated rubbery copolymer composed of 10 to 50% by weight of acrylonitrile units, 25 to 88% by weight of hydrogenated conjugated diene units and from 2 to 25% by weight of conjugated diene units, and 2) a sulfur vulcanization system.