| 发明名称 |
TIRE COMPRISING A TREAD MADE UP OF SEVERAL ELASTOMERIC COMPOUNDS |
| 摘要 |
A tire with radial carcass reinforcement, comprising a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, the said tread comprising at least two radially superposed layers of polymer compound, a first layer of filled elastomeric compound, constituting the radially outer part of the tread, has a macrodispersion score Z higher than 80 and a maximum tan(δ) value, denoted tan(δ)max, lower than 0.130 and a second layer of elastomeric compound radially on the inside of the said first layer of elastomeric compound has an elongation at break at 60° C. that is higher than 600%. |
| 申请公布号 |
US2014332132(A1) |
申请公布日期 |
2014.11.13 |
| 申请号 |
US201214361137 |
申请日期 |
2012.11.15 |
| 申请人 |
COMPAGNIE GNERALE DES ETABLISSEMENTS MICHELIN ;MICHELIN RECHERCHE ET TECHNIQUE S.A. |
发明人 |
Gervais Philippe;Durand Alain |
| 分类号 |
B60C11/00 |
主分类号 |
B60C11/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A tire with radial carcass reinforcement, comprising:
a crown reinforcement, a tread radially capping the crown reinforcement, connected to two beads by two sidewalls, and comprising at least two radially superposed layers of polymer compound, comprising a first layer of filled elastomeric compound, constituting the radially outer part of the tread, has a macrodispersion score Z higher than 80 and a maximum tan(δ) value, denoted tan(δ)max, lower than 0.130, and a second layer of elastomeric compound radially on the inside of the said first layer of elastomeric compound has an elongation at break at 60° C. that is higher than 600%. |
| 地址 |
Clermont-Ferrand FR |
