Rubber composition comprising a specific plasticizing system

Abstract

A rubber composition is based on at least: an elastomer matrix consisting of an SBR or of a mixture of one SBR and at least one other SBR, a reinforcing filler comprising silica, a plasticizing system comprising 2 to 50 phr of a liquid plasticizer, and 10 phr to 80 phr of a terpene resin selected from alpha-pinene homopolymers, beta-pinene homopolymers, copolymers of alpha-pinene and beta-pinene, and mixtures thereof, the weight ratio of the resin to the liquid plasticizer being greater than or equal to 2/1, and a crosslinking system. The use of the rubber composition for the manufacture of tires not only affords an excellent compromise between rolling resistance and wet grip while providing a good level of tread block tear strength, it also makes it possible to respond to a desire to increase the content of sustainable materials in tires.

Dependencies are inferred from the claim text.