Rubber composition based on carbon black having silica fixed to its surface and on diene polymer functionalized with alkoxysilane

摘要

A rubber composition having improved hysteretic and physical properties which make it particularly suitable for forming a tire tread of reduced rolling resistance, comprising carbon black having silica fixed to its surface as the majority portion of reinforcing filler and at least one diene polymer functionalized by means of a functionalizing agent of general formula:(Y)m-R1-Si(OR2)3-nR3n.