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:
Aug. 31, 2021
Filed:
Apr. 03, 2015
Applicant:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Inventor:
Keisuke Maejima, Hiratsuka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 9/06 (2006.01); B60C 1/00 (2006.01); C08K 3/04 (2006.01); C08L 7/00 (2006.01); C08L 47/00 (2006.01); C08K 3/36 (2006.01); C08K 5/548 (2006.01); C08L 9/00 (2006.01);
U.S. Cl.
CPC ...
C08L 9/06 (2013.01); B60C 1/0016 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); C08K 5/548 (2013.01); C08L 7/00 (2013.01); C08L 9/00 (2013.01); C08L 47/00 (2013.01); C08K 2201/006 (2013.01); C08L 2205/02 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); C08L 2205/035 (2013.01);
Abstract
A rubber composition for use in a tire tread includes: per 100 parts by weight of diene rubber containing 40 wt % or greater of butadiene rubber, and a styrene butadiene rubber, from 80 to 150 parts by weight of silica having a CTAB specific surface area of 150 to 250 m/g, and a long chain alkyl group-containing silane compound in an amount of 1 to 10 wt % of the amount of the silica. The rubber composition further includes a styrene component in the diene rubber being from 15 to 20 wt %, and a vinyl component in the diene rubber being from 18 to 28 wt %; and an average glass transition temperature of the diene rubber is −55° C. or lower.