Title:
TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2015/001934
Kind Code:
A1
Abstract:
Provided are: a rubber composition for tires that maintains or improves good elongation at break, prevents discoloration, and is capable of improving ozone resistance; and a pneumatic tire using same. This rubber composition for tires includes: a rubber component; a naturally-derived wax having an ester component content of 40%-98% by mass; a phenylenediamine-based and/or a quinone-based antioxidant; and a specific non-ionic surfactant. The diene-based rubber content within 100% by mass rubber component is 70-100% by mass. The naturally-derived wax content is 0.01-5.0 parts by mass with respect to 100 parts by mass rubber component, the petroleum-derived wax content is 0-6.0 parts by mass, the combined phenylenediamine-based and quinone-based antioxidant content is 1.0-8.0 parts by mass, and the non-ionic surfactant content is 0.1-5.0 parts by mass.
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Inventors:
MIYAZAKI TATSUYA (JP)
TOKIMUNE RYUICHI (JP)
TOKIMUNE RYUICHI (JP)
Application Number:
PCT/JP2014/065558
Publication Date:
January 08, 2015
Filing Date:
June 12, 2014
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
C08L21/00; B60C1/00; C08K5/10; C08K5/18; C08L91/06
Foreign References:
| JPS63213536A | 1988-09-06 | |||
| JPH05179071A | 1993-07-20 | |||
| JP2012021057A | 2012-02-02 | |||
| JP2011080022A | 2011-04-21 | |||
| JP2012057153A | 2012-03-22 | |||
| JP2012036351A | 2012-02-23 |
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
Patent business corporation Yasutomi international patent firm (JP)
Patent business corporation Yasutomi international patent firm (JP)
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