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:
Nov. 16, 2021
Filed:
Jul. 22, 2019
Applicant:
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Inventor:
Kenya Watanabe, Kobe, JP;
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 9/06 (2006.01); C08L 91/06 (2006.01); C08K 3/36 (2006.01); C08K 3/04 (2006.01); C08K 3/22 (2006.01); C08K 5/09 (2006.01); B60C 1/00 (2006.01); C08K 3/06 (2006.01); C08L 9/00 (2006.01); C08L 7/00 (2006.01); B60C 11/00 (2006.01);
U.S. Cl.
CPC ...
C08L 9/06 (2013.01); B60C 1/0016 (2013.01); C08K 3/04 (2013.01); C08K 3/06 (2013.01); C08K 3/22 (2013.01); C08K 3/36 (2013.01); C08K 5/09 (2013.01); C08L 7/00 (2013.01); C08L 9/00 (2013.01); C08L 91/06 (2013.01); B60C 2011/0025 (2013.01); C08K 2003/2296 (2013.01); C08L 2205/02 (2013.01);
Abstract
Provided are a tread rubber composition which provides a balanced improvement in wet grip performance and resistance to low-temperature brittleness, and a pneumatic tire including a tread at least partially containing the rubber composition. The present invention relates to a tread rubber composition containing a styrene-butadiene rubber and having a tan δ peak temperature of −10° C. or higher and a brittleness temperature of −40° C. or lower.