Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2021/079673
Kind Code:
A1
Abstract:
Provided is a tire having a belt layer that can improve fuel efficiency while maintaining good performance in terms of noise, ride comfort, and durability. A tire 1 has a belt layer 7 disposed inside a tread part 2. The belt layer 7 includes at least one belt ply 7A, 7B. The belt plies 7A, 7B each include a belt cord 9 that is made of a single steel wire 9A having a flat cross section and a topping rubber 10 that covers the belt cord 9. The topping rubber 10 has a complex elastic modulus ES* of 8.0-20.0 MPa at 70 °C, and a loss tangent tanδ of 0.04-0.14 at 70 °C.
Inventors:
NAKAJIMA HIROKI (JP)
YAMAGUCHI EIJI (JP)
YAMAGUCHI EIJI (JP)
Application Number:
PCT/JP2020/035739
Publication Date:
April 29, 2021
Filing Date:
September 23, 2020
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
B60C1/00; B60C9/00; B60C9/20; B60C11/00; D07B1/06
Foreign References:
| JP2008156418A | 2008-07-10 | |||
| JP2013122038A | 2013-06-20 | |||
| JP2014095017A | 2014-05-22 | |||
| JP2017178994A | 2017-10-05 | |||
| JP2001080313A | 2001-03-27 | |||
| JP2017048351A | 2017-03-09 | |||
| JP4467107B2 | 2010-05-26 | |||
| US4414370A | 1983-11-08 | |||
| JPS596207B2 | 1984-02-09 | |||
| JPH0558005B2 | 1993-08-25 | |||
| JPH0131352B2 | 1989-06-26 | |||
| US5010166A | 1991-04-23 | |||
| JP2010111753A | 2010-05-20 |
Other References:
TOAGOSEI, ANNUAL REPORT TREND2000, vol. 3, no. 3, pages 42 - 45
Attorney, Agent or Firm:
SUMITOMO Shintaro (JP)
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