PNEUMATIC TIRE WITH COMPOUND APEX
    2.
    发明申请
    PNEUMATIC TIRE WITH COMPOUND APEX 审中-公开
    具有复合APEX的气动轮胎

    公开(公告)号:US20110174422A1

    公开(公告)日:2011-07-21

    申请号:US12690284

    申请日:2010-01-20

    IPC分类号: B60C15/06

    摘要: The present invention is directed to a pneumatic tire comprising a tread, a belt structure, and a carcass, wherein the carcass has a radial ply and two bead sections; each bead section comprising a bead and a compound apex comprising an inner apex section and an outer apex section, the inner apex section and outer apex section axially adjoining, the outer apex section disposed axially outward of the inner apex; the inner apex section adjoining the bead and extending radially from the bead; the outer apex section adjoining the bead and extending radially from the bead to a greater extent than the inner apex section; wherein the inner apex section comprises a rubber composition having a shear storage modulus G′ measured at 1% strain and 100° C. according to ASTM D5289 ranging from 18 to 32 MPa, and the outer apex section comprises a rubber composition having a shear storage modulus G′ measured at 1% strain and 100° C. according to ASTM D5289 ranging from 1.2 to 10 MPa.

    摘要翻译: 本发明涉及一种包括胎面,带束结构和胎体的充气轮胎,其中胎体具有径向帘布层和两个胎圈部分; 每个胎圈部分包括一个胎圈和一个复合顶点,它包括内顶点部分和外顶部部分,内顶点部分和外顶部部分轴向相邻,外顶部部分设置在内顶点的轴向外侧。 所述内顶部部分邻接所述胎圈并且从所述胎圈径向延伸; 所述外顶部部分邻接所述胎圈并且从所述胎圈径向延伸到比所述内顶部部分更大的程度; 其中内顶部部分包括根据ASTM D5289在18至32MPa范围内具有在1%应变下测量的剪切储能模量G'和100℃的橡胶组合物,并且外顶部部分包括具有剪切储存器 根据ASTM D5289,在1%应变和100℃下测量的模量G'为1.2至10MPa。