Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2018/070173
Kind Code:
A1
Abstract:
Provided is a pneumatic tire in which a rubber composition is used in a tread rubber, a sidewall rubber, or a rim strip. The rubber composition contains a diene rubber, a petroleum-derived wax, a fatty acid metal salt, and a compound represented by formula (I) (in the formula, R1 and R2 each represent a hydrogen atom, an alkyl group, an alkenyl group, or an alkynyl group, and M+ represents Na+, K+, or Li+), wherein the blended amount of a phenylene diamine anti-degradant is less than one part by mass, and a difference obtained by subtracting the number of carbon atoms in a constituent fatty acid which is contained most abundantly in the fatty acid metal salt from the number of carbon atoms in a hydrocarbon which is contained most abundantly in the petroleum-derived wax is -10 to 8. As a result, the pneumatic tire is inhibited from discoloring to white or reddish brown while maintaining ozone resistance, and thereby has improved appearance.
Inventors:
MASUMOTO YUUKI (JP)
Application Number:
PCT/JP2017/033012
Publication Date:
April 19, 2018
Filing Date:
September 13, 2017
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO (JP)
International Classes:
C08L9/00; B60C1/00; C08K5/098; C08K5/20; C08L91/06
Domestic Patent References:
| WO2015001937A1 | 2015-01-08 |
Foreign References:
| JP2014095017A | 2014-05-22 | |||
| JP2013209605A | 2013-10-10 | |||
| JP2014210830A | 2014-11-13 | |||
| JP2002275311A | 2002-09-25 | |||
| JP2007010478A | 2007-01-18 | |||
| JP2017178994A | 2017-10-05 | |||
| JP2017025221A | 2017-02-02 | |||
| JP2017025293A | 2017-02-02 |
Attorney, Agent or Firm:
TSUTADA, Masato et al. (JP)
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