Rubber composition for a tire and pneumatic tire using the same

Details Rubber composition for a tire and pneumatic tire using the same Rubber composition for a tire and pneumatic tire using the same

2004-12-15

2008-10-07

Yoon, Tae H (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S394000, C152S151000

Reexamination Certificate

active

07432318

ABSTRACT:
The present invention provides a tread rubber composition for a tire, which highly controls energy loss in a wide frequency range and has high frictional force especially on wet road surfaces, and a tire using the same. Specifically, the present invention provides a rubber composition for a tire comprising 5 to 100 parts by weight of a fatty acid obtained from a vegetable oil having an iodine value of at least 80, based on 100 parts by weight of a rubber component, wherein the ratio of tanδ at 60° C. to tanδ at 0° C. is at least 0.85, and a pneumatic tire using the rubber composition.

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