Rubber composition for tread and tire having tread using same
AssigneeSumitomo Rubber Industries, Ltd.
InventorKazuo Hochi
Life of this patent
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Abstract
The present invention provides a rubber composition for a tread which can improve both of grip performance and rolling resistance in good balance and a tire having a tread prepared by using it. The rubber composition for a tread of the present invention contains 30 to 80 parts by weight of a silica having a pH of 7.1 to 12.0 when dispersed in water to prepare a 5% aqueous dispersion; and not more than 10 parts by weight of a carbon black on the basis of 100 parts by weight of a rubber component comprising an epoxidized natural rubber and the tire of the present invention has a tread prepared by using the rubber composition.
Claims5
A tire having a tread formed from a rubber composition for a tire tread, which comprises:
- 30 to 80 parts by weight of a silica having a pH of 7.1 to 12.0 when dispersed in water to prepare a 5% aqueous dispersion;
- and
- not more than 10 parts by weight of a carbon black on the basis of 100 parts by weight of a rubber component comprising an epoxidized natural rubber.
Dependencies are inferred from the claim text.