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. 22, 2018
Filed:
Dec. 05, 2014
Applicant:
The Yokohama Rubber Co., Ltd., Minato-ku, Tokyo, JP;
Inventor:
Naoki Kushida, Hiratsuka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 45/00 (2006.01); C08L 9/06 (2006.01); B60C 1/00 (2006.01); C08K 3/04 (2006.01); C08L 9/00 (2006.01); C08L 45/02 (2006.01);
U.S. Cl.
CPC ...
C08L 9/06 (2013.01); B60C 1/00 (2013.01); B60C 1/0016 (2013.01); C08K 3/04 (2013.01); C08L 9/00 (2013.01); C08L 45/02 (2013.01);
Abstract
A tire rubber composition that improves dry grip performance to or beyond conventional levels, while retaining grip performance sustainability and wear resistance during high-speed running is provided. A tire rubber composition comprising 40 to 180 parts by weight of carbon black having a nitrogen adsorption specific surface area of 80 to 400 m/g and 1 to 100 parts by weight of aromatic copolymer blended in 100 parts by weight of diene rubber, the aromatic copolymer being a copolymer of an α-methylstyrene derivative represented by general formula (I) and indene.