Patent ID: 6878768

Claim:
A tire comprising an elastomeric composition based on a diene elastomer, a reinforcing filler comprising a reinforcing inorganic filler, and an (inorganic filler/diene elastomer) coupling agent, wherein the coupling agent is a multifunctional polyorganosiloxane comprising functions denoted as “Y” and “X”, wherein the Y function is at least one hydroxyl or hydrolyzable function grafted to the silicon atoms of the coupling agent and the X function is a group bearing at least one activated ethylene double bond and is grafted to the silicon atoms of the coupling agent, wherein the ethylene double bond of the coupling agent is activated by at least one adjacent electron-attracting group selected from the group consisting of: radicals bearing at least one of the bonds C═O, C═C, C≡C, OH, OR (where “R” is an alkyl group), ON or OAr (where “Ar” is an aryl group); at least one sulfur atom; at least one nitrogen atom; and at least one halogen.