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Title:
RUBBER COMPOSITION AND PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2012/147830
Kind Code:
A1
Abstract:
The present invention provides a rubber composition that can improve fuel efficiency, wet grip performance, and wear resistance in a well-balanced manner, and a pneumatic tire using the rubber composition. This rubber composition contains a rubber component, silica, and a compound represented by formula (1). In 100% by mass of the rubber component, the content of a conjugated diene polymer that includes a structural unit based on a conjugated diene and a structural unit represented by formula (I) is 5% by mass or greater, the conjugated diene polymer having at least one end thereof modified by a specific compound. The content of silica to 100 parts by mass of the rubber component is 5 to 150 parts by mass.

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Inventors:
MABUCHI TAKAHIRO (JP)
KAGAWA YOSHIHIRO (JP)
ITO HIROSHI (JP)
KUNISAWA TETSUYA (JP)
TSUMORI ISAMU (JP)
UESAKA KENICHI (JP)
Application Number:
PCT/JP2012/061171
Publication Date:
November 01, 2012
Filing Date:
April 26, 2012
Export Citation:
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Assignee:
SUMITOMO RUBBER IND (JP)
MABUCHI TAKAHIRO (JP)
KAGAWA YOSHIHIRO (JP)
ITO HIROSHI (JP)
KUNISAWA TETSUYA (JP)
TSUMORI ISAMU (JP)
UESAKA KENICHI (JP)
International Classes:
C08L15/00; C08F8/42; C08K3/36; C08K5/40; C08L7/00; C08L9/00
Foreign References:
JP2010077412A2010-04-08
JP2010270292A2010-12-02
JP2010077413A2010-04-08
JP2010077415A2010-04-08
JP2010077414A2010-04-08
JP2004256792A2004-09-16
JP2000143877A2000-05-26
JP2001089606A2001-04-03
JP2006045471A2006-02-16
JP2000344955A2000-12-12
JP2009126907A2009-06-11
JP2006045471A2006-02-16
JP2003192842A2003-07-09
Other References:
See also references of EP 2703443A4
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
Patent business corporation Yasutomi international patent firm (JP)
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Claims:



 
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