Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2023/248616
Kind Code:
A1
Abstract:
The present invention addresses the problem of improving the wear resistance performance of a tire during high-speed driving. This tire comprises a tread portion, wherein: a cap rubber layer that forms the tread portion contains, in 100 parts by mass of a rubber component, at least 80 parts by mass of styrene-butadiene rubber (SBR) with a styrene content of at most 25 mass%, contains at most 100 parts by mass of silica with respect to 100 parts by mass of the rubber component, and is formed from a rubber composition which makes the cap rubber layer have a complex elastic modulus (30 °CE*) of at most 8.0 MPa as measured under the conditions of a temperature of 30 °C, a frequency of 10 Hz, an initial strain of 5%, a dynamic strain rate of 1%, and a deformation mode of tension; and the thickness of the tread portion is at most 9.0 mm.
Inventors:
SUZUKI YUMI (JP)
NAKAMURA KENTARO (JP)
NAKAMURA KENTARO (JP)
Application Number:
PCT/JP2023/016625
Publication Date:
December 28, 2023
Filing Date:
April 27, 2023
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
B60C11/00; B60C1/00; B60C3/04; B60C11/03; C08F236/10; C08K3/36; C08L9/06
Foreign References:
| JP2021172248A | 2021-11-01 | |||
| JP2021172228A | 2021-11-01 | |||
| JP2021172213A | 2021-11-01 | |||
| JP2021088676A | 2021-06-10 | |||
| JP2021028400A | 2021-02-25 | |||
| JP2020125378A | 2020-08-20 |
Attorney, Agent or Firm:
JODAI Tetsuji et al. (JP)
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