| 摘要 |
<p>A radial tyre for a motor vehicle includes a crown, two beads, a crown reinforcement, and an inner crown layer. A tread of the crown includes a contact part located at a radially outer position and intended to make contact with a road surface. The inner crown layer is located at a radially inner position and is formed of an elastomeric material having a different formulation from that of the contact part of the tread. The inner crown layer is arranged circumferentially between the contact part of the tread and the crown reinforcement or between the crown reinforcement and a carcass reinforcement, and functions to reduce rolling noises of the tyre. The elastomeric material includes a rubber composition with at least: 50 to 100 phr of a copolymer based on styrene and butadiene with a Tg greater than -40° C., a reinforcing filler, a hydrocarbon-based plasticizing resin, and a crosslinking system.</p> |
