Title:
A TIRE TREAD
Document Type and Number:
WIPO Patent Application WO/2022/137317
Kind Code:
A1
Abstract:
A tread for a tire having a contact face (2) intended to come into contact with ground during rolling, a material constituting a plurality of contact elements having a modulus G* at 60°C Mb and a glass transition temperature Tgb, at least one of a contact element (5) being provided with a covering layer (6) covering at least one of a lateral face (7) of the contact element (5) facing to circumferential orientation at least partly, the covering layer (6) consists of at least two layers (61, 62), an outer covering layer (61) facing to outward of the contact element (5), a material constituting the outer covering layer (61) has a modulus G* at 60°C Mo and a glass transition temperature Tgo, and an inner covering layer (62) facing to inward of the contact element (5), a material constituting the inner covering layer (62) has a modulus G* at 60°C Mi and a glass transition temperature Tgi.
Inventors:
ANDO KIYOTERU (JP)
Application Number:
PCT/JP2020/047832
Publication Date:
June 30, 2022
Filing Date:
December 22, 2020
Export Citation:
Assignee:
MICHELIN & CIE (FR)
International Classes:
B60C11/00; B60C11/13
Domestic Patent References:
| WO2018221630A1 | 2018-12-06 | |||
| WO2013088570A1 | 2013-06-20 |
Foreign References:
| EP2379350A1 | 2011-10-26 | |||
| JP6069709B2 | 2017-02-01 | |||
| EP3521063A1 | 2019-08-07 | |||
| JPH0747814A | 1995-02-21 | |||
| JP2010105509A | 2010-05-13 |
Attorney, Agent or Firm:
WADA Yukihiro (JP)
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