Title:
PNEUMATIC TIRE, AND RUBBER COMPOSITION FOR TIRE
Document Type and Number:
WIPO Patent Application WO/2019/012985
Kind Code:
A1
Abstract:
The present invention provides a pneumatic tire having both improved durability at high temperature or during high-speed travel and favorable performance on ice surface, and a rubber composition for the tire. This pneumatic tire comprises a tread having blocks with an average height of 0.6-2.0 cm and an average sipe density of at least 1.0 cm/cm2. The blocks are composed of a rubber composition wherein the tanδ at 100°C measured under an initial strain of 10%, dynamic strain of 2%, and frequency of 10 Hz is 0.179 or less, and the ratio of the modulus at 100°C to the modulus at room temperature is at least 69% as measured according to JIS K 6251:2010.
Inventors:
ONO SHUICHIRO (JP)
TOYA SUBARU (JP)
TOYA SUBARU (JP)
Application Number:
PCT/JP2018/024213
Publication Date:
January 17, 2019
Filing Date:
June 26, 2018
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
B60C11/12; B60C11/00; C08L21/00
Domestic Patent References:
| WO2015083818A1 | 2015-06-11 |
Foreign References:
| JP2009269981A | 2009-11-19 | |||
| JP2016065160A | 2016-04-28 | |||
| JP2011079940A | 2011-04-21 | |||
| JP2013170265A | 2013-09-02 | |||
| JP2007022277A | 2007-02-01 | |||
| JP2002293111A | 2002-10-09 |
Other References:
See also references of EP 3492279A4
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
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