Title:
RUBBER COMPOSITION AND PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2018/221595
Kind Code:
A1
Abstract:
In order to provide a rubber composition capable of simultaneously suppressing the dependence of the rubber properties on the vulcanization temperature and improving the rupture properties without worsening the heat build-up property, the present invention compounded 30-50 mass parts of carbon black having a nitrogen adsorption specific surface area of 100-130 m2/g, 25-40 mass parts of carbon black of 37-60 m2/g, 1.5-2.2 mass parts of sulfur as pure sulfur, and 110-200 mass% of a sulfenamide-based vulcanization accelerator relative to the pure sulfur with 30-60 mass parts of isoprene rubber and 100 mass parts of diene rubber containing 40-70 mass parts of butadiene rubber.
Inventors:
NOMAGUCHI TSUYOSHI (JP)
Application Number:
PCT/JP2018/020778
Publication Date:
December 06, 2018
Filing Date:
May 30, 2018
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
C08L9/00; B60C1/00; B60C15/06; C08K3/04; C08K3/06; C08K5/44
Domestic Patent References:
| WO2015145843A1 | 2015-10-01 | |||
| WO2013008798A1 | 2013-01-17 |
Foreign References:
| JP2015101666A | 2015-06-04 | |||
| JP2013237337A | 2013-11-28 | |||
| JP2009242577A | 2009-10-22 | |||
| JP2011046299A | 2011-03-10 | |||
| JPH10100612A | 1998-04-21 | |||
| JP6068987B2 | 2017-01-25 | |||
| JP2014031425A | 2014-02-20 |
Other References:
See also references of EP 3632975A4
Attorney, Agent or Firm:
NODA, Shigeru (JP)
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