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US 10,501,608 B2Granted
Rubber composition for tire tread
AssigneeThe Yokohama Rubber Co., Ltd.
InventorMasaki Sato
Life of this patent
Estimating the term…
Abstract
Provided is a rubber composition for tire treads containing a diene rubber, from 1 to 20 parts by weight of a silica containing millable silicone rubber compound, and from 0.2 to 20 parts by weight of thermally expandable microcapsules, per 100 parts by weight of the diene rubber. A rubber hardness of the millable silicone rubber compound is from 10 to 50.
Claims13
A rubber composition for a tire tread, wherein the rubber composition comprises:
- a diene rubber comprising natural rubbers and/or butadiene rubbers, from 1 to 20 parts by weight of a millable silicone rubber compound and from 0.2 to 20 parts by weight of a thermally expandable microcapsule having a structure in which a thermally expandable substance in encapsulated in a shell material formed from a thermoplastic resin, per 100 parts by weight of the diene rubber, the millable silicone rubber compound containing silica, and a rubber hardness of the millable silicone rubber compound being from 10 to 50.
Dependencies are inferred from the claim text.