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US 2009/0014109 A1Published application
Rubber Composition for Bead Apex and Tire Using Same
AssigneeSumitomo Rubber Industries, Ltd.
InventorKazuo Hochi
Life of this patent
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Abstract
The present invention can provide a rubber composition for a bead apex comprising 20 to 120 parts by weight of a silica and 5 to 80 parts by weight of a graphite on the basis of 100 parts by weight of a rubber component comprising a natural rubber in an amount of not less than 30% by weight, use of which makes it possible to consider an effect on environment, prepare for decrease in petroleum supply in future, and reduce rolling resistance and improve steering stability, and a tire prepared by using it.
Claims3
A rubber composition for a bead apex, which comprises:
- 20 to 120 parts by weight of a silica and
- 5 to 80 parts by weight of a graphite
- on the basis of 100 parts by weight of a rubber component comprising a natural rubber in an amount of not less than 30% by weight.
Dependencies are inferred from the claim text.