IDiyas

For the Inventor, By the Inventor

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.:

US 9012560 B1

PDFFull Text
Date of Patent:
Apr. 21, 2015

Filed:

Mar. 22, 2012

Rubber composition and pneumatic tire

Applicants:

Tetsuya Kunisawa, Kobe, JP;

Tsuyoshi Tsuchida, Kobe, JP;

Kenichi Uesaka, Kobe, JP;

Isamu Tsumori, Kobe, JP;

Reika Otake, Kobe, JP;

Noboru Okabe, Kobe, JP;

Naoya Omura, Kobe, JP;

Tatsuhiro Tanaka, Kobe, JP;

Takafumi Taguchi, Kobe, JP;

Kenya Watanabe, Kobe, JP;

Toru Iizuka, Kobe, JP;

Inventors:

Tetsuya Kunisawa, Kobe, JP;

Tsuyoshi Tsuchida, Kobe, JP;

Kenichi Uesaka, Kobe, JP;

Isamu Tsumori, Kobe, JP;

Reika Otake, Kobe, JP;

Noboru Okabe, Kobe, JP;

Naoya Omura, Kobe, JP;

Tatsuhiro Tanaka, Kobe, JP;

Takafumi Taguchi, Kobe, JP;

Kenya Watanabe, Kobe, JP;

Toru Iizuka, Kobe, JP;

Assignee:

Sumitomo Rubber Industries, Ltd., Kobe, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Robert D Harlan

Int. Cl.
CPC ...
C08L 19/00 (2006.01); C08K 3/36 (2006.01); B60C 1/00 (2006.01); C08C 19/22 (2006.01); C08C 19/25 (2006.01); C08C 19/44 (2006.01); C08F 230/08 (2006.01); C08K 5/548 (2006.01); C08L 9/00 (2006.01); C08L 9/06 (2006.01); C08L 15/00 (2006.01);
U.S. Cl.
CPC ...
C08L 19/006 (2013.01); B60C 1/00 (2013.01); B60C 1/0016 (2013.01); C08C 19/22 (2013.01); C08C 19/25 (2013.01); C08C 19/44 (2013.01); C08F 230/08 (2013.01); C08K 3/36 (2013.01); C08K 5/548 (2013.01); C08L 9/00 (2013.01); C08L 9/06 (2013.01); C08L 15/00 (2013.01); Y02T 10/862 (2013.01);
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 silane coupling agent, 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; an amount of the silica is 5 to 150 parts by mass per 100 parts by mass of the rubber component; and the silane coupling agent contains a mercapto group.

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