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:
Apr. 30, 2013
Filed:
Oct. 28, 2009
Kenichi Uesaka, Kobe, JP;
Kenichi Uesaka, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
The present invention has its object to provide a rubber composition that can be used for a tread to supply a tire having both low heat build-up property and good wet grip performance. The present invention relates to a rubber composition including: silica and a rubber component that contains a modified butadiene rubber having a vinyl content of 35% by weight or less and having, in a main chain thereof, a constitutional unit derived from a specific nitrogen-containing compound, wherein an amount of the modified butadiene rubber is 5 to 45% by weight per 100% by weight of the rubber component, and wherein an amount of the silica is 10 to 150 parts by weight per 100 parts by weight of the rubber component.