The invention relates to a tyre comprising a crown reinforcement consisting of at least one layer of circumferential reinforcing elements. According to the invention, the thermal conductivity of the polymer mixture layer forming the tyre tread is strictly less than 0.270 W/(m.K), said polymer mixture layer forming the tyre tread being formed from a rubber composition based on at least one elastomer matrix, the elastomer matrix mainly comprises a styrene-butadiene-based copolymer having a glass transition temperature Tg strictly greater than-65 DEG C and less than or equal to-30 DEG C, and the thickness E of the rubber mixture between the inner surface of the cavity (8) of the tyre and the point of the metal reinforcing element of the carcass closest to said inner surface in the cavity is less than 4.5 mm.
本发明涉及包括胎冠增强件的轮胎,所述胎冠增强件由至少一个周向增强元件层组成。根据本发明,形成轮胎胎面的聚合物混合物层的热导率严格小于0.270W/(m.K),形成轮胎胎面的所述聚合物混合物层由基于至少一种弹性体基质的橡胶组合物形成,所述弹性体基质主要包含玻璃化转变温度Tg严格大于‑65℃且小于或等于‑30℃的苯乙烯‑丁二烯基共聚物,并且在轮胎的腔体(8)的内表面与胎体的金属增强元件的最接近腔体中所述内表面的点之间的橡胶混合物的厚度E小于4.5mm。
Tire with improved rolling resistance performance
具有改进的滚动阻力性能的轮胎
2023-04-04
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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