A tire with radial carcass reinforcement comprising a crown reinforcement itself capped radially with a tread of which the tread pattern comprises at least two circumferential grooves. The tread is made up of at least three layers, a first layer forming the radially outer part of the tread of a first compound having an electrical resistivity per unit volume ρ1 such that log(ρ1) is less than 6, a second layer radially on the inside of at least three parts, at least the axially outer parts of a second compound having an electrical resistivity per unit volume ρ2 such that log(ρ2) is greater than 10, and at least part, radially extending the at least first elastomeric compound of the first layer, of a third elastomeric compound having an electrical resistivity per unit volume ρ3 such that log(ρ3) is less than 6, a third layer radially furthest towards the inside of at least five parts, at least the axially outer parts of a third elastomeric compound having a maximum value of tan(δ), denoted tan(δ)max, of less than 0.080, at least two parts of the second compound, and at least part of the third layer, that radially extends the at least one part of the second layer of the third elastomeric compound.


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    Title :

    TIRE COMPRISING A TREAD MADE UP OF SEVERAL ELASTOMERIC COMPOUNDS


    Contributors:

    Publication date :

    2015-11-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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