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:
Feb. 23, 2016
Filed:
Dec. 12, 2011
Toshikazu Kondo, Kobe, JP;
Jun Okamoto, Kobe, JP;
Sakae Okubo, Kobe, JP;
Ryoichi Kasahara, Kobe, JP;
Kenji Murata, Kobe, JP;
Kazuhiro Kodama, Kobe, JP;
Kazuyuki Nishioka, Kobe, JP;
Toshikazu Kondo, Kobe, JP;
Jun Okamoto, Kobe, JP;
Sakae Okubo, Kobe, JP;
Ryoichi Kasahara, Kobe, JP;
Kenji Murata, Kobe, JP;
Kazuhiro Kodama, Kobe, JP;
Kazuyuki Nishioka, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-shi, JP;
Abstract
A rubber composition that can improve in good balance the fuel economy, wet-grip performance, and abrasion resistance, and a pneumatic tire that uses this rubber composition are provided. This rubber composition contains a rubber component, and carbon black and/or silica, wherein based on 100% by mass of the rubber component, the rubber component contains 5 to 50% by mass of natural rubber, 0.3 to 10% by mass of an epoxidized natural rubber, and at least 5% by mass of a conjugated diene polymer that has a constituent unit based on a conjugated diene and a constituent unit represented by formula (I) below, at least one terminal of the polymer being modified, and wherein a total content of the carbon black and the silica is 3 to 100 parts by mass per 100 parts by mass of the rubber component.