Rubber composition for tire tread and pneumatic tire using the same
AssigneeSumitomo Rubber Industries, Ltd.
InventorsNoriko Yagi, Kiyoshige Muraoka
Life of this patent
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Abstract
The present invention provides a rubber composition for a tire tread, which is excellent in fuel efficiency and wet grip performance, without losing properties such as processability and mechanical strength, and a pneumatic tire comprising the rubber composition. Specifically, the present invention provides a rubber composition for a tire tread comprising 100 parts by weight of a rubber component containing at least 5% by weight of natural rubber graft-copolymerized with an organic compound having an unsaturated bond and/or epoxidized natural rubber, and 5 to 150 parts by weight of carbon black and/or silica with a nitrogen-absorbing specific surface area of 100 to 300 m2/g.
Claims5
A rubber composition for a tire tread comprising 100 parts by weight of a rubber component containing at least 5% by weight of natural rubber graft-copolymerized with an organic compound having an unsaturated bond and/or epoxidized natural rubber, and 5 to 150 parts by weight of carbon black and/or silica with a nitrogen-absorbing specific surface area of 100 to 300 m2/g.
Dependencies are inferred from the claim text.