The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2008
Filed:
Dec. 15, 2004
Applicant:
Naohiko Kikuchi, Kobe, JP;
Inventor:
Naohiko Kikuchi, Kobe, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/09 (2006.01); B60C 1/00 (2006.01);
U.S. Cl.
CPC ...
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.