Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2021/166794
Kind Code:
A1
Abstract:
Provided is a pneumatic tire capable of improving the durability of the tire while ensuring the communication performance and durability of a transponder. A transponder 20 is embedded outside a carcass layer 4 in a tire width direction, and covered with a coating layer 23. A storage elastic modulus E'c (20°C) at 20°C of the coating layer 23 and a storage elastic modulus E'out (20°C) at 20°C of a rubber member having the highest storage elastic modulus at 20°C among rubber members located outside relative to the transponder 20 in the tire width direction satisfy a relationship of 0.1 ≤ E'c (20°C) / E'out (20°C) ≤ 1.5. Moreover, the storage elastic modulus E'c (20°C) at 20°C of the coating layer 23 and a storage elastic modulus E'in (20°C) at 20°C of a rubber member having the highest storage elastic modulus at 20°C among rubber members located inside relative to the transponder 20 in the tire width direction satisfy a relationship of 0.03 ≦ E'c (20°C) / E'in (20°C) ≤ 1.50.
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Inventors:
NARUSE MASAHIRO (JP)
Application Number:
PCT/JP2021/005211
Publication Date:
August 26, 2021
Filing Date:
February 12, 2021
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C15/06; B60C19/00
Domestic Patent References:
| WO2007100111A1 | 2007-09-07 |
Foreign References:
| CN110072713A | 2019-07-30 | |||
| JP2007230261A | 2007-09-13 | |||
| US20190322142A1 | 2019-10-24 | |||
| KR20100120505A | 2010-11-16 | |||
| JP2008296552A | 2008-12-11 | |||
| JP2016007749A | 2016-01-18 | |||
| JP2010264627A | 2010-11-25 |
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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