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    TYRE COMPRISING A SEALING MATERIAL COMPRISING A PARTIALLY CROSS-LINKED STYRENE-BUTADIENE RUBBER
    6.
    发明公开
    TYRE COMPRISING A SEALING MATERIAL COMPRISING A PARTIALLY CROSS-LINKED STYRENE-BUTADIENE RUBBER 有权
    甲PARTIAL交联的苯乙烯 - 丁二烯综合密封材料综合TIRE

    公开(公告)号：EP2296918A1

    公开(公告)日：2011-03-23

    申请号：EP08760261.1

    申请日：2008-05-30

    申请人： Pirelli Tyre S.P.A.

    发明人： GIANNINI, Luca ,  NAHMIAS NANNI, Marco ,  MANCINI, Gianni ,  PUPPI, Cristiano ,  SOLINAS, Stefano

    IPC分类号： B60C19/12 ,  B29C73/16 ,  B29C73/20 ,  C09K3/10

    CPC分类号： B29C73/163 ,  B29C73/20 ,  B29D2030/069 ,  B29D2030/0694 ,  B29L2030/00 ,  B60C5/142 ,  B60C9/14 ,  B60C19/12

    摘要： The present invention relates to a tyre for vehicle wheels, comprising: - a carcass structure of a substantially toroidal shape, having opposite lateral edges terminating in respective bead structures, said carcass structure comprising at least one carcass ply; - a belt structure applied in a radially external position with respect to said carcass structure, said belt structure comprising at least one belt layer; - a tread band applied in a radially external position with respect to said belt structure; - a pair of sidewalls applied laterally on opposite sides with respect to said carcass structure; - a substantially air-impermeable layer applied in a radially inner position with respect to said at least one carcass ply; - a layer of sealing material applied in a radially inner position with respect to said at least one carcass ply and, preferably, in a radially outer position with respect to said air-impermeable layer; wherein said sealing material comprises: from 55 phr to 95 phr, preferably from 65 phr to 90 phr, of at least one natural or synthetic elastomer; from 5 phr to 45 phr, preferably from 10 phr to 35 phr, of at least one pre-crosslinked elastomer, preferably a styrene-butadiene elastomer; from 5 to 50 phr, preferably from 20 phr to 40 phr, of at least one tackifying agent, and from 1 to 40 phr, preferably from 5 to 30 phr, of at least one reinforcing filler.