Title:
TYRE FOR HEAVY LOADS
Document Type and Number:
WIPO Patent Application WO/2023/248509
Kind Code:
A1
Abstract:
In this tire 1 for heavy loads, tread rubber 7 has a cap layer 7c and a base layer 7b disposed nearer to the inner periphery of the tire than the cap layer, the cap layer is provided with a cap surface layer 7c1 and a cap intermediate layer 7c2, the cap surface layer has a tan δ greater than that of the cap intermediate layer in a tensile test at a room temperature of 24°C, 2% amplitude, and 50Hz, and the difference between the tan δ of the cap surface layer in a tensile test at a room temperature of 24°C, 2% amplitude, and 50 Hz and the tan δ of the cap intermediate layer in a tensile test at a room temperature of 24°C, 2% amplitude, and 50 Hz is 0.06 or greater.
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Inventors:
SATO AKIHITO (JP)
SUGITA DAICHI (JP)
SUGITA DAICHI (JP)
Application Number:
PCT/JP2023/000863
Publication Date:
December 28, 2023
Filing Date:
January 13, 2023
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C11/00
Domestic Patent References:
| WO2021256123A1 | 2021-12-23 | |||
| WO2021215279A1 | 2021-10-28 |
Foreign References:
| JPH1160810A | 1999-03-05 | |||
| JP2008120121A | 2008-05-29 | |||
| JP2002019418A | 2002-01-23 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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