Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Justin Belz

José Carlos Araujo Da Silva

Benoit De Gaudemaris

Brigitte Marie Chauvin

Etienne Fleury

Stéphanie De Landtsheer

Nathalie Simon

Catherine Mougin

Anne-Frédérique Salit

A rubber composition is based on at least: from 60 to 100 phr of one or more diene elastomers, referred to as very low glass transition temperature (Tg) diene elastomers, exhibiting a Tg within a range extending from &#x2212;110&#xb0; C. to &#x2212;70&#xb0; C., chosen from butadiene homopolymers, copolymers of butadiene and of vinylaromatic monomer, exhibiting a content of vinylaromatic unit of between 0% and 5% by weight, and the mixtures of these; a reinforcing filler; crosslinking system; and from 50 to 150 phr of at least one hydrocarbon resin predominantly composed of units resulting from &#x3b1;-pinene monomers, the resin exhibiting an aliphatic proton content of greater than 95%.

Rubber composition comprising a specific hydrocarbon resin

A reinforced rubber composition based at least on an elastomeric matrix comprising natural rubber, on a reinforcing filler and on a polyaldimine compound of general formula (I), in which the R, Rand A elements are variable groups. This composition is intended in particular for the manufacture of semi-finished products for tires.

Composition based on natural rubber and on a polyaldimine compound

Reinforced rubber composition based on, exhibiting a lesser hysteresis degradation over time, based on at least (a) an elastomeric matrix predominantly based on natural rubber, (b) a reinforcing filler and (c) a specific polyimine compound in a content of between 6 and 20 mmol per 100 g of elastomer. This rubber composition is intended, for example, for the manufacture of a semi-finished rubber product intended for the tyres of motor vehicles.

Composition based on natural rubber and a polyimine compound

Reinforced rubber composition, exhibiting improved hysteresis, based on at least (a) an elastomeric matrix predominantly based on natural rubber, (b) a reinforcing filler and (c) a specific polyimine compound in a small proportion, preferably ranging from 1 to 5 mmol per 100 g of elastomer. This rubber composition is intended, for example, for the manufacture of a semi-finished rubber product intended for the tires of motor vehicles.

Growing community of inventors

Clermont-Ferrand, France

Justin Belz