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. 03, 2018
Filed:
Apr. 20, 2012
Isamu Tsumori, Kobe, JP;
Kenichi Uesaka, Kobe, JP;
Naoya Omura, Kobe, JP;
Tetsuya Kunisawa, Kobe, JP;
Tatsuhiro Tanaka, Kobe, JP;
Kazuyuki Nishioka, Kobe, JP;
Isamu Tsumori, Kobe, JP;
Kenichi Uesaka, Kobe, JP;
Naoya Omura, Kobe, JP;
Tetsuya Kunisawa, Kobe, JP;
Tatsuhiro Tanaka, Kobe, JP;
Kazuyuki Nishioka, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, Hyogo, JP;
Abstract
The present invention provides a rubber composition that can enhance the fuel economy, wet-grip performance, and abrasion resistance in a balanced manner, and a pneumatic tire using this rubber composition. The present invention relates to a rubber composition that contains a rubber component, silica, and a liquid resin having a softening point of −20 to 20° C., wherein the rubber component contains, based on 100% by mass of the rubber component, not less than 5% by mass of a conjugated diene polymer containing 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 with a specific compound; and an amount of the silica is 5 to 150 parts by mass per 100 parts by mass of the rubber component.