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:
May. 20, 2008
Filed:
Dec. 04, 2003
Applicants:
Noriko Yagi, Kobe, JP;
Kiyoshige Muraoka, Kobe, JP;
Inventors:
Noriko Yagi, Kobe, JP;
Kiyoshige Muraoka, Kobe, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/34 (2006.01); C08K 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
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 andlor epoxidized natural rubber, and 5 to 150 parts by weight of carbon black and!or silica with a nitrogen-absorbing specific surface are of 100 to 300m/g.