Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2023/248828
Kind Code:
A1
Abstract:
The present invention improves wear resistance during high-speed travel. A tire comprising a tread section, wherein: a cap rubber layer forming the tread section is formed from a rubber composition containing 60-80 parts by mass of styrene butadiene rubber (SBR) having a styrene content of 25% by mass or less per 100 parts by mass of a rubber component, and also containing 100 parts by mass or less of silica per 100 parts by mass of the rubber component, the rubber composition being such that, at a temperature of 30°C, a frequency of 10Hz, an initial strain of 5%, and a dynamic strain rate of 1%, the loss tangent (30°C tan δ) of the rubber composition measured in a tension deformation mode is greater than 0.25; and the thickness of the tread section is 6-15 mm.
Inventors:
YAMADA AYUKO (JP)
NAKAMURA KENTARO (JP)
NAKAMURA KENTARO (JP)
Application Number:
PCT/JP2023/021485
Publication Date:
December 28, 2023
Filing Date:
June 09, 2023
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
B60C1/00; B60C3/04; B60C11/00; B60C11/03; C08F236/10; C08K3/36; C08L9/06
Domestic Patent References:
| WO2021215279A1 | 2021-10-28 | |||
| WO2021256123A1 | 2021-12-23 |
Foreign References:
| JP2022086476A | 2022-06-09 | |||
| JP2017218042A | 2017-12-14 | |||
| JP2016094552A | 2016-05-26 | |||
| JP2020023640A | 2020-02-13 | |||
| JP2021001267A | 2021-01-07 | |||
| JP2021142862A | 2021-09-24 |
Attorney, Agent or Firm:
JODAI Tetsuji et al. (JP)
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