SILICA FILLED RUBBERY VULCANIZATES

摘要

A process is provided for making improved rubbery vulcanizates wherein rubbery polymer is mixed with silica or silica and carbon black, polyfunctional polysulphide silane compound and sulphur-based vulcanizaiton agents and the mixture is vulcanized, the rubber polymer is a polymer having two or three domains or a mixture of a polymer having two or three domains and one of polybutadiene, styrene-butadiene polymer or natural rubber or a mixture of polybutadiene and natural rubber.