Compagnie Generale Des Etablissements Michelin

Emmanuel Landreau

Philippe Laubry

Etienne Fleury

Lionel Belin

Fabien Bonnette

A rubber composition is based on at least a diene elastomer, a reinforcing filler, a crosslinking system, an epoxy resin, an amine hardener comprising at least two primary amine functions, located on at least one six-membered aromatic ring, and an imidazole.

Rubber composition based on epoxy resin, an amine hardener and an imidazole

A rubber composition exhibiting an improved processability/stiffness compromise is based on at least a diene elastomer, a reinforcing filler, a crosslinking system, between 1 and 30 parts by weight per hundred parts by weight of elastomer, phr, of an epoxy resin and between 1 and 15 phr of a specific amine-comprising hardener comprising in particular at least two primary amine functional groups located on at least one six-membered aromatic ring and at least two Ri radicals, which are identical or different, selected from the group consisting of linear or branched C-Calkyl radicals, halogens, and ethers, tertiary amines, thioethers, ketones, esters and amides, substituted by linear or branched C-Calkyl radicals, the said ring not comprising a hydrogen atom located in the ortho position with respect to the primary amine functional groups.

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Clermont-Ferrand, France

Emmanuel Landreau