Rubber composition containing an epoxidized synthetic rubber, and tire tread containing same
AssigneeSociete De Technologie Michelin
InventorsGarance Lopitaux, Didier Vasseur, Franck Varagniat
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Abstract
The present invention relates to a rubber composition based on at least one elastomeric matrix comprising an epoxidized synthetic rubber (ESR) having an epoxy function content ranging from 7% to 25%, a reinforcing filler, of which at least 50% by weight of the reinforcing filler is constituted of an inorganic filler, and a plasticizing agent comprising a polar liquid plasticizer for the manufacture of a tyre tread having an improved compromise of properties: grip on wet ground/rolling resistance.
Claims15
A rubber composition based at least on an elastomeric matrix comprising an epoxidized synthetic rubber (ESR) having an epoxy function content ranging from 7% to 25%, on a reinforcing filler comprising an inorganic filler in a weight fraction of at least 50% and on a plasticizing agent comprising a polar liquid plasticizer.
Process for achieving a compromise of improved properties of grip on wet ground and of rolling resistance of a tire, consisting of:
- the preparation of a rubber composition based on an elastomeric matrix comprising an epoxidized rubber (ESR) having an epoxy function content ranging from 7% to 25%, a reinforcing filler and, as plasticizing agent, a polar liquid plasticizer,
- producing a tire tread via extrusion, and
- manufacturing a tire comprising said tread.
Dependencies are inferred from the claim text.