RUBBER COMPOSITION AND PNEUMATIC TIRE

Title:

RUBBER COMPOSITION AND PNEUMATIC TIRE

Document Type and Number:

WIPO Patent Application WO/2012/144487

Kind Code:

A1

Abstract:

The present invention provides: a rubber composition which is capable of improving fuel consumption saving, wet grip performance, wear resistance and steering stability in a balanced manner; and a pneumatic tire which uses the rubber composition. The present invention relates to a rubber composition which contains a rubber component, a silica (1) that has a nitrogen adsorption specific surface area of 100 m2/g or less, and a silica (2) that has a nitrogen adsorption specific surface area of 180 m2/g or more. In the rubber composition, the content of a conjugated diene polymer, which has a constituent unit derived from a conjugated diene and a constituent unit represented by formula (I) and at least one end of which is modified with a specific compound, is 5% by mass or more per 100% by mass of the rubber component, and the total content of the silica (1) and the silica (2) per 100 parts by mass of the rubber component is 30-150 parts by mass.

Inventors:

TAGUCHI TAKAFUMI (JP)
UESAKA KENICHI (JP)
IMOTO YOJI (JP)
YAMAUCHI SATOMI (JP)
KAGAWA YOSHIHIRO (JP)

Application Number:

PCT/JP2012/060342

Publication Date:

October 26, 2012

Filing Date:

April 17, 2012

Export Citation:

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Assignee:

SUMITOMO RUBBER IND (JP)
TAGUCHI TAKAFUMI (JP)
UESAKA KENICHI (JP)
IMOTO YOJI (JP)
YAMAUCHI SATOMI (JP)
KAGAWA YOSHIHIRO (JP)

International Classes:

C08L15/00; B60C1/00; C08C19/22; C08K3/36

Foreign References:

JP2010077412A	2010-04-08
JP2010270292A	2010-12-02
JP2010077413A	2010-04-08
JP2010077415A	2010-04-08
JP2010077414A	2010-04-08
JP2006233177A	2006-09-07
JP2008101127A	2008-05-01
JP2008050570A	2008-03-06
JP2007197671A	2007-08-09
JP2000344955A	2000-12-12
JP2003192842A	2003-07-09

Other References: