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Title:
RUBBER COMPOSITION FOR TIRES, AND PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2013/058219
Kind Code:
A1
Abstract:
Provided are: a rubber composition for tires, which can have improved low-fuel consumption performance, improved wet grip performance and improved wear resistance; and a pneumatic tire produced using the rubber composition. The present invention relates to a rubber composition for tires, which comprises a diene polymer, a silica and a liquid resin having a softening point of -20 to 20°C, wherein the diene polymer is a modified diene polymer produced by reacting components (A) and (B) as mentioned below with each other and the content of the liquid resin is 3 to 40 parts by mass relative to 100 parts by mass of the rubber component: (A): an active conjugated diene polymer having an alkali metal terminal, which is produced by polymerizing a conjugated diene monomer or polymerizing a conjugated diene monomer with an aromatic vinyl monomer both in the presence of a component (C) as mentioned below; (B): a modifying agent having a functional group; and (C): a chemical species which is produced by reacting a compound represented by formula (1) with an organic alkali metal compound.

Inventors:
ISHINO SOH (JP)
Application Number:
PCT/JP2012/076649
Publication Date:
April 25, 2013
Filing Date:
October 16, 2012
Export Citation:
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Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
B60C1/00; C08L15/00; C08C19/40; C08K3/36; C08K5/40; C08K5/548; C08L25/16; C08L45/02
Domestic Patent References:
WO2006028254A12006-03-16
Foreign References:
JP2006306962A2006-11-09
JP2011144323A2011-07-28
JP2011173510A2011-09-08
JP2009263420A2009-11-12
JP2009120819A2009-06-04
JP2005154769A2005-06-16
JP2011144239A2011-07-28
JP2002179729A2002-06-26
JP2001114938A2001-04-24
Other References:
See also references of EP 2770021A4
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
Patent business corporation Yasutomi international patent firm (JP)
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Claims: