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. 21, 2014
Filed:
Jul. 05, 2012
Applicant:
Michio Hirayama, Kobe, JP;
Inventor:
Michio Hirayama, Kobe, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 15/00 (2006.01); C08L 19/00 (2006.01); C08C 19/44 (2006.01);
U.S. Cl.
CPC ...
C08C 19/44 (2013.01); C08L 15/00 (2013.01); C08L 19/006 (2013.01);
Abstract
The present invention provides a tire rubber composition with which the grip performance, the abrasion resistance, and the performance in terms of rolling resistance are improved in a balanced manner. The present invention relates to a tire rubber composition comprising: a modified diene rubber A which is modified with a specific acrylamide compound; and a modified diene rubber B which is modified with a specific modifying compound alone or together with a specific silicon or tin compound, a weight average molecular weight of a total of the modified diene rubbers A and B being 300,000 to 1,400,000.