Rubber composition based on a highly saturated elastomer and a liquid plasticizer

Abstract

Rubber compositions having improved rolling resistance and wet grip are based on at least one elastomer matrix comprising at least one copolymer containing ethylene units and 1,3-diene units, the molar fraction of ethylene units in the copolymer being within a range extending from more than 50% to 95%, the copolymer not containing any unit of a 1,3-diene of formula CH2═CR—CH═CH2, the symbol R representing a hydrocarbon chain having 3 to 20 carbon atoms; a liquid plasticizer comprising from 45% to 100% by weight of unsaturated fatty acid triester of glycerol; more than 30 phr of reinforcing filler; and a crosslinking system. Rubber articles, in particular pneumatic or non-pneumatic tires, may comprise the rubber compositions, especially in the tread of such tires.

Dependencies are inferred from the claim text.