PNEUMATIQUE POIDS-LOURD COMPORTANT UNE BANDE DE ROULEMENT A BASE D'UN POLYISOPRENE MODIFIE, SON PROCEDE DE PREPARATION

摘要

A heavy-duty vehicle tire comprising a tread consisting of a crosslinked rubber composition comprising a reinforcing filler of siliceous type and a synthetic polyisoprene modified by grafting with a compound comprising at least one group Q, and at least one group A, which are joined to one another by at least one and preferably one“spacer”group Sp, in which: Q comprises a dipole containing at least one and preferably one nitrogen atom, A comprises an associative group comprising at least one nitrogen atom, Sp is an atom or group of atoms forming a bond between Q and A. The heavy-duty vehicle tire according to the invention has a satisfactorily improved rolling resistance/wear resistance compromise.