TIRE HAVING A CROWN AREA PROVIDED WITH A SUBLAYER COMPRISING A THERMOPLASTIC ELASTOMER

摘要

A radial tire for a motor vehicle, having: a crown surmounted by a tread provided with at least one radially outer elastomer layer to contact the road when the tire is rolling; two inextensible beads, two sidewalls connecting the beads to the tread, a carcass reinforcement passing into the two sidewalls and anchored in the beads; the crown reinforced by a crown reinforcement or belt placed circumferentially between the carcass reinforcement and the tread; a radially inner elastomer sublayer having a formulation different from that of the outer elastomer layer, placed between the outer layer and the belt, and having a rubber composition having at least one diene elastomer, one reinforcing filler and one thermoplastic styrene copolymer (TPS elastomer) which makes possible an increase of the stiffness of the sublayer and improvement of handling performance of the tire, while retaining good hysteresis and rolling resistance.