Title:
RUBBER COMPOSITION FOR TIRE SIDEWALL
Document Type and Number:
WIPO Patent Application WO/2015/198943
Kind Code:
A1
Abstract:
Provided is a rubber composition for a tire sidewall, said composition exhibiting excellent ozone-resistance and improving the appearance of a tire beyond the levels of the prior art. The rubber composition for a tire sidewall is characterized by mixing 0.5-10 parts by weight of a paraffin wax, 0.5-10 parts by weight of an amine-based anti-aging agent and 0.2-5 parts by weight of a polyalkylene glycol carbonic acid alkyl ester represented by formula (I) into 100 parts by weight of a diene-based rubber including at least 20-80 wt% of a natural rubber and 20-80 wt% of a butadiene rubber (in the formula, R1 represents a hydrocarbon group having 5-21 carbon atoms, R2 represents an ethylene group and/or a propylene group, R3 represents a methyl group or an ethyl group, and n is an integer of 1-8).
Inventors:
TAKEDA SHINYA (JP)
SUGIMOTO HIROKI (JP)
WAKAMATSU RIEKO (JP)
AMANO HIDEO (JP)
SUGIMOTO HIROKI (JP)
WAKAMATSU RIEKO (JP)
AMANO HIDEO (JP)
Application Number:
PCT/JP2015/067479
Publication Date:
December 30, 2015
Filing Date:
June 17, 2015
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
LION SPECIALTY CHEMICALS CO LTD (JP)
LION SPECIALTY CHEMICALS CO LTD (JP)
International Classes:
C08L9/00; B60C1/00; C08K5/10; C08K5/17; C08L7/00
Domestic Patent References:
| WO2015001937A1 | 2015-01-08 |
Foreign References:
| JP2013159714A | 2013-08-19 | |||
| JPH05194790A | 1993-08-03 | |||
| JPS63213536A | 1988-09-06 | |||
| JP2012057153A | 2012-03-22 |
Attorney, Agent or Firm:
Seiryu Patent Professional Corporation et al. (JP)
Clear stream international patent business corporation (JP)
Clear stream international patent business corporation (JP)
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