发明申请
- 专利标题: A TIRE TREAD
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申请号: PCT/JP2020/047832申请日: 2020-12-22
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公开(公告)号: WO2022137317A1公开(公告)日: 2022-06-30
- 发明人: ANDO Kiyoteru
- 申请人: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
- 申请人地址: 23, Place des Carmes-Dechaux, 63000 CLERMONT-FERRAND
- 专利权人: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
- 当前专利权人: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
- 当前专利权人地址: 23, Place des Carmes-Dechaux, 63000 CLERMONT-FERRAND
- 代理机构: WADA Yukihiro
- 主分类号: B60C11/00
- IPC分类号: B60C11/00 ; B60C11/13
摘要:
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.