Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2023/248611
Kind Code:
A1
Abstract:
The present invention improves steering stability during high-speed running. The tire according to the present invention includes a tread, wherein a cap rubber layer as a part of the tread is made of a rubber composition which contains a styrene/butadiene rubber (SBR) having a styrene content of 25 mass% or less in an amount of 60-80 parts by mass per 100 parts by mass of the rubber component, contains silica in an amount of 100 parts by mass or larger per 100 parts by mass of the rubber component, and has a loss tangent (30°Ctanδ), as determined under the conditions of a temperature of 30°C, a frequency of 10 Hz, an initial strain of 5%, and a dynamic strain rate of 1% in the tensile deformation mode, of 0.27 or greater. The tread has a thickness of 13 mm or less.
Inventors:
NAKAMURA KENTARO (JP)
Application Number:
PCT/JP2023/016409
Publication Date:
December 28, 2023
Filing Date:
April 26, 2023
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
B60C11/00; B60C1/00; B60C11/03; C08F236/10; C08K3/04; C08K3/36; C08L9/06
Domestic Patent References:
| WO2020246218A1 | 2020-12-10 | |||
| WO2022124340A1 | 2022-06-16 |
Foreign References:
| JP2022086476A | 2022-06-09 | |||
| JP2019183101A | 2019-10-24 | |||
| JP2021187411A | 2021-12-13 | |||
| JP2019199548A | 2019-11-21 | |||
| JP2020006871A | 2020-01-16 | |||
| JP2018002008A | 2018-01-11 |
Attorney, Agent or Firm:
JODAI Tetsuji et al. (JP)
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