Michelin Recherche Et Technique S.a.

Michelin & Cie

Compagnie Generale Des Establissements

Bruno Grimberg

David Lenabour

Corinne Tonon

Patrice Person

Jean-Claude Tardivat

Le Tu Anh Vo

Yves Ravoire

A metallic body of carbon steel covered with an adhesive layer capable of adhering to a rubber matrix based on diene elastomer. The carbon content of the steel is between 0.35 and 1.2% by weight. The adhesive layer is formed of a metallic layer bearing aluminum oxides or hydroxides, which itself is covered with an organosilane film which is at least bifunctional, capable of ensuring, as coupling agent, the bond between the aluminum oxides or hydroxides on one hand, and the rubber matrix on the other hand.

Metal/rubber composite for tire

A (metal/rubber) composite comprising a rubber matrix reinforced with a metallic body adhering to the rubber matrix by means of an adhesive interphase; the rubber matrix is based on diene elastomer; the metal is a carbon steel, the carbon content of which is between 0.35% and 1.2%; to constitute the adhesive interphase, the carbon steel is coated with a metallic layer bearing aluminium oxides or hydroxides, which itself is covered by an organosilane film providing, as coupling agent, the bond between the aluminium oxides-hydroxides on one hand, and the rubber matrix on the other hand. The invention also relates to articles or semi-finished products made of rubber which are reinforced with or formed by such a composite, in particular tires.

Process for treating a body of steel to promote its adherence to a composition which includes at least a rubber, containing the following points:

Process for treating a body of stainless steel so as to promote its

Growing community of inventors

Clermont-Ferrand, France

Bruno Grimberg