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    • 11. 发明申请
    • A PNEUMATIC TIRE HAVING A TREAD COMPRISING MILLIPARTICLES
    • 具有包含MILLIPARTICLES的TREAD的气动轮胎
    • WO2015016388A1
    • 2015-02-05
    • PCT/JP2014/070801
    • 2014-07-31
    • COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINMICHELIN RECHERCHE ET TECHNIQUE S.A.XUE, BoyongPAGANO, Salvatore
    • XUE, BoyongPAGANO, Salvatore
    • B60C11/14B60C11/00
    • B60C11/0041B60C1/0016B60C2011/142C08L9/00C08L21/00
    • A pneumatic tire having a tread suitable for a winter tires, having a high grip on snow/ice, the pneumatic tire having the tread comprising at least two radially superposed portions. Such a tread is comprising a surfacic portion intended to come into contact with ground during rolling at least when the tread is new and in the cured state, having a thickness of more than 1 mm and being made of a rubber composition, an internal portion adjacent to the surfacic portion, having a thickness of more than 1 mm and being made of a rubber composition which is different from the rubber composition of the surfacic portion. The rubber composition of the surfacic portion comprises at least a diene elastomer, more than 30 phr of a liquid plasticizer, 50 to 150 phr of a reinforcing filler and milliparticles having a median size by weight of more than 1 mm, and a volume fraction of the milliparticles more than 20% in volume of the rubber composition of the surfacic portion.
    • 一种具有适于冬季轮胎的胎面的充气轮胎,其具有对雪/冰的高抓地力,所述充气轮胎具有包括至少两个径向重叠部分的胎面。 这样的胎面包括至少当胎面是新的且处于固化状态时,在轧制期间与地面接触的表面部分,其厚度大于1mm,并且由橡胶组合物制成,内部相邻 到具有大于1mm厚度并且由不同于表面部分的橡胶组合物的橡胶组合物制成的表面部分。 表面部分的橡胶组合物至少包含二烯弹性体,超过30phr的液体增塑剂,50至150phr的增强填料和中等重量大于1mm的微粒,以及体积分数 该颗粒体积的二氧化硅部分的橡胶组合物的体积大于20%。