Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2023/248754
Kind Code:
A1
Abstract:
The present invention improves wet grip performance after high-speed travel. Provided is a tire having a tread section. A cap rubber layer forming the tread section is formed from a rubber composition in which 60-80 parts by mass of 100 parts by mass of the rubber component is constituted by a styrene-butadiene rubber (SBR) having a styrene amount of 25 mass% or less. The rubber composition contains 100 parts by mass or more of silica per 100 parts by mass of the rubber component. The loss tangent (30°C tanδ) of the rubber composition, when measured in a tension deformation mode 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%, is less than 0.27. The thickness of the tread section is 13 mm or less.
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| WO/2020/246087 | PNEUMATIC TIRE |
| WO/2000/037270 | DUAL COMPOSITION TREAD BAND FOR TIRE |
| JPH08244406 | STUDLESS PNEUMATIC RADIAL TIRE FOR HEAVY LOAD |
Inventors:
NAKAMURA KENTARO (JP)
Application Number:
PCT/JP2023/020445
Publication Date:
December 28, 2023
Filing Date:
June 01, 2023
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
B60C11/00; B60C1/00; B60C3/00; B60C11/03; C08F236/10; C08K3/36; C08L9/06
Domestic Patent References:
| WO2022074932A1 | 2022-04-14 | |||
| WO2020179582A1 | 2020-09-10 | |||
| WO2022124340A1 | 2022-06-16 |
Foreign References:
| JP2020023640A | 2020-02-13 | |||
| JP2019183101A | 2019-10-24 | |||
| JP2018058437A | 2018-04-12 | |||
| JP2015131599A | 2015-07-23 | |||
| JP2018053179A | 2018-04-05 | |||
| JP2019199548A | 2019-11-21 | |||
| JP2021187411A | 2021-12-13 | |||
| JP2005067236A | 2005-03-17 |
Attorney, Agent or Firm:
JODAI Tetsuji et al. (JP)
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