Title:
RUBBER COMPOSITION FOR TIRES, AND TIRE USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/094693
Kind Code:
A1
Abstract:
In order to provide a rubber composition for tires, which has remarkably improved low loss tangent by improving dispersibility of a white filler such as silica, and a tire using the rubber composition for tires, this rubber composition for tires is configured to contain a white filler and at least one of the compounds represented by formulae (I) and (II) in at least one rubber component (A) that is selected from among natural rubbers and/or diene-based synthetic rubbers, with the rubber component (A) containing a conjugated diene polymer that has at least one atom selected from among an Si atom, an Su atom, a sulfur atom, an oxygen atom and a Ti atom at a polymerization-active terminal or a polymerization initiating terminal or in a polymer chain.
(In formula (I), R1 represents a linear, branched or cyclic alkyl or alkenyl group having 1-24 carbon atoms or a group represented by formula (III); and each of R2 and R3 represents a hydrogen atom, a hydroxyl group, a hydroxyalkyl group or a hydroxyalkyl group having an oxyalkylene unit, and R2 and R3 may be the same as or different from each other.)
(In formula (II), R4 is the same as the above-described R1; R5 represents a hydroxyl group, a hydroxyalkyl group or a hydroxyalkyl group having an oxyalkylene unit.)
(In formula (III), A represents a single bond or an alkyl or alkenyl group having 1-24 carbon atoms; B represents a carbonyl group, an ester group, an amino group, an amide group, an ether group, a hydroxyl group, a hydroxyalkyl group or a hydroxyalkylene group; and R6 is the same as the above-described R1.)
Inventors:
MATSUO SHIGEAKI (JP)
YAGI REIKO (JP)
TAMATE RYOUTA (JP)
YAGI REIKO (JP)
TAMATE RYOUTA (JP)
Application Number:
PCT/JP2012/083103
Publication Date:
June 27, 2013
Filing Date:
December 20, 2012
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
MATSUO SHIGEAKI (JP)
YAGI REIKO (JP)
TAMATE RYOUTA (JP)
MATSUO SHIGEAKI (JP)
YAGI REIKO (JP)
TAMATE RYOUTA (JP)
International Classes:
C08L15/00; B60C1/00; C08C19/00; C08K5/17; C08K5/3445
Domestic Patent References:
| WO1997035461A2 | 1997-10-02 |
Foreign References:
| JP2001106830A | 2001-04-17 | |||
| JP2009263536A | 2009-11-12 | |||
| JP2001158835A | 2001-06-12 | |||
| JP2010185053A | 2010-08-26 | |||
| JPH10324776A | 1998-12-08 | |||
| JP2011052067A | 2011-03-17 |
Attorney, Agent or Firm:
FUJIMOTO Eisuke et al. (JP)
Eisuke Fujimoto (JP)
Eisuke Fujimoto (JP)
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