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AssigneeMichelin Recherche et Technique S.A.
InventorsSalvatore Pagano, Christel Thonier, Gerard Mignani
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The present invention is directed to a rubber composition comprising a diene elastomer, a reinforcing white filler, and a (white filler/elastomer) coupling agent, which is bifunctional and which can be bonded to the elastomer by means of a function X. The coupling agent X function is an ester function of an unsaturated α-β acid bearing a carbonyl group on its γ position and having the general formula (X): where R, R1 and R2 may be the same or different, where R is a monovalent hydrocarbon radical, and where R1 and R2 may be a hydrogen atom or a monovalent hydrocarbon radical. The rubber composition of the present invention is useful for the manufacture of tires or semi-finished products for tires, such as tire treads.
A tire comprising a rubber composition, wherein said rubber composition is based on a diene elastomer, a reinforcing white filler, and a (white filler/elastomer) coupling agent, bearing functions denoted as “Y” and “X”, wherein said coupling agent can be bonded on the one hand to said reinforcing white filler by means of the Y function and on the other hand to said diene elastomer by means of the X function, and wherein the X function is an ester function of an unsaturated α-β acid bearing a carbonyl group on its γ position and having the general formula (X):
A tire tread comprising a rubber composition, wherein the composition is based on a diene elastomer, a reinforcing white filler, and a (white filler/elastomer) coupling agent, bearing functions denoted as “Y” and “X”, wherein said coupling agent can be bonded on the one hand to said reinforcing white filler by means of the Y function and on the other hand to said diene elastomer by means of the X function, and wherein the X function is an ester function of an unsaturated α-β acid bearing a carbonyl group on its γ position and having the general formula (X):
Dependencies are inferred from the claim text.