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    • 1. 发明申请
    • SELF-SEALING TYRE FOR VEHICLE WHEELS
    • 车轮自密封轮胎
    • WO2017109701A1
    • 2017-06-29
    • PCT/IB2016/057832
    • 2016-12-20
    • PIRELLI TYRE S.P.A.
    • GIANNINI, LucaDONETTI, Raffaella
    • B29D30/06B60C19/12B29C73/16B32B27/32
    • B60C19/122B29C73/18B29D30/0685B29D2030/069B29D2030/0695B32B27/32B60C5/14
    • The present invention relates to a self-sealing tyre for vehicle wheels comprising at least one carcass ply, a tread band applied in radially outer position to said carcass ply in a crown zone, optionally a liner applied in radially inner position to said carcass ply, a sealing composite applied in radially inner position to the liner and axially extended at least at a part of the crown portion of the tyre; wherein said sealing composite comprises a self-supporting thermoplastic film comprising at least 50% by weight with respect to the weight of the film itself of at least one or more polyolefins, wherein the at least one polyolefin has a fluidity index (MFI) of less than 4 gram per 10 minutes, and a sealing composition layer associated with and supported by said self-supporting thermoplastic film.
    • 本发明涉及一种用于车轮的自密封轮胎,其包括至少一个胎体帘布层,在胎冠区中径向外部位置施加到所述胎体帘布层的胎面带,可选地施加在 所述密封复合材料在径向内部位置施加到所述衬里并且至少在所述轮胎的所述胎冠部分的一部分处轴向地延伸; 其中所述密封复合材料包含自支撑热塑性薄膜,所述自支撑热塑性薄膜包含至少一种或多种聚烯烃相对于薄膜自身重量的至少50重量%,其中所述至少一种聚烯烃的流动指数(MFI)小于 每10分钟超过4克,以及与所述自支撑热塑性薄膜结合并由其支撑的密封组合物层。
    • 6. 发明申请
    • SELF-SEALING TYRE AND PROCESS FOR ITS MANUFACTURE
    • 自密封轮胎及其制造工艺
    • WO2003101709A1
    • 2003-12-11
    • PCT/EP2002/005973
    • 2002-05-31
    • PIRELLI PNEUMATICI S.P.A.SERRA, AntonioNAHMIAS NANNI, Marco
    • SERRA, AntonioNAHMIAS NANNI, Marco
    • B29C73/22
    • B29D30/0685B29C73/22B29D2030/0689B29D2030/069B29D2030/0691B29D2030/0695B29D2030/0697Y10T152/10666Y10T152/10675Y10T152/10684
    • Tyre for vehicle wheels, comprising: a carcass structure having at least one carcass ply shaped in a substantially toroidal configuration, whose opposite lateral edges are associated with respective bead wires; a belt structure comprising at least one belt strip applied in a circumferentially outer position with respect to said carcass structure; a tread circumferentially superimposed on said belt structure; a pair of sidewalls applied laterally on opposite sides with respect to said carcass structure; at least one layer of sealing composition placed in a radially inner position with respect to said tread; wherein said sealing composition comprises: (a) at least one high molecular weight amorphous polymer; (b) at least one low molecular weight amorphous polymer; (c) at least one reinforcing filler; is substantially non-crosslinked and has a flowability value, measured at a temperature of loo°C and at a pressure of 30 bar, not higher than 30 cm3/s.
    • 用于车轮的轮胎,包括:胎体结构,其具有至少一个形成为大致环形构造的胎体帘布层,其相对的侧边缘与相应的胎圈丝相关联; 带结构,包括相对于所述胎体结构在周向外部位置施加的至少一个带条; 周向地叠置在所述带结构上的胎面; 相对于所述胎体结构在相对侧上横向施加的一对侧壁; 至少一层密封组合物相对于所述胎面放置在径向内部位置; 其中所述密封组合物包含:(a)至少一种高分子量无定形聚合物; (b)至少一种低分子量无定形聚合物; (c)至少一种增强填料; 基本上是非交联的,并且具有在低于0℃的温度和30巴压力不高于30cm 3 / s下测量的流动性值。