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    • 5. 发明公开
    • COLD WEATHER TIRE
    • 冷天气轮胎
    • EP3301132A1
    • 2018-04-04
    • EP17193894.7
    • 2017-09-28
    • SUMITOMO RUBBER INDUSTRIES, LTD.
    • ONO, ShuichiroYOKOYAMA, Yuka
    • C08L9/00C08L9/06C08L7/00C08K3/36C08J9/00B60C1/00
    • B60C1/0016B60C11/0008B60C11/005C08J9/0014C08J9/0061C08J9/0066C08J9/0095C08J9/105C08J2201/026C08J2203/04C08J2207/00C08J2309/00C08J2407/00C08J2409/06C08K3/36C08L7/00C08L9/00C08L9/06
    • Provided is a cold weather tire achieving a balanced improvement in fuel economy, abrasion resistance, performance on ice and snow, and high-speed performance (handling stability, grip performance) on snow- and ice-free roads at low temperatures. The cold weather tire includes a cap tread formed of a rubber composition that contains: a rubber component including polybutadiene rubber, styrene butadiene rubber, and natural rubber and/or polyisoprene rubber; and a filler, the rubber composition having a combined amount of the natural rubber, polyisoprene rubber, and polybutadiene rubber of 80% by mass or more, an amount of the polybutadiene rubber of 30% by mass or more, and an amount of the styrene butadiene rubber of 0.3-10% by mass, each based on 100% by mass of the rubber component, the filler including 60% by mass or more of silica based on 100% by mass of the filler, the cap tread having cells and/or voids.
    • 提供一种冷气候轮胎,其在低温下在无冰和无冰的道路上实现燃料经济性,耐磨性,冰雪上性能和高速性能(操纵稳定性,抓地性能)的平衡改进。 所述冷气候轮胎包括由橡胶组合物形成的胎冠胎面,所述橡胶组合物包含:包含聚丁二烯橡胶,苯乙烯丁二烯橡胶和天然橡胶和/或聚异戊二烯橡胶的橡胶组分; 和填充剂,所述橡胶组合物的天然橡胶,聚异戊二烯橡胶和聚丁二烯橡胶的总量为80质量%以上,所述聚丁二烯橡胶的量为30质量%以上,并且所述苯乙烯 丁二烯橡胶,基于100质量%的橡胶成分,0.3-10质量%的丁二烯橡胶,基于100质量%的填充剂包含60质量%以上的二氧化硅的填料,具有孔和/ 或空隙。