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6 条记录 (耗时 0.012 秒)

    MELT BLOWN FIBER
    5.
    发明公开
    MELT BLOWN FIBER 有权
    熔喷纤维

    公开(公告)号：EP2529044A2

    公开(公告)日：2012-12-05

    申请号：EP11700555.3

    申请日：2011-01-19

    申请人： Borealis AG

    发明人： VAN PARIDON, Henk ,  BROEDERS, Bert ,  SARS, Wilhelmus Henricus Adolf ,  FIEBIG, Joachim ,  ACKERMANS, Nina

    IPC分类号： D01F6/30 ,  C08F210/06 ,  D01D5/098 ,  D04H1/56

    CPC分类号： D01F6/30 ,  C08F210/06 ,  D01D5/0985 ,  D04H1/56 ,  D04H3/007 ,  D04H3/16 ,  Y10T428/298 ,  Y10T442/626 ,  Y10T442/68 ,  C08F210/16 ,  C08F2500/12

    摘要： Melt-blown fiber having an average diameter of not more than 5.0 μm, said fiber comprises at least 85 wt.-% of a propylene copolymer, wherein • said melt blown fiber and/or said propylene copolymer has/have a melt flow rate MFR
    2 (230 °C) measured according to ISO 1133 of at least 200 g/10min, • said propylene copolymer has a comonomer content of 0.5 to 5.5 wt.-%, the comonmers are ethylene and/or at least one C
    4 to C
    20 α-olefin selected from the group consisting of 1 -butene, 1-pentene, 1-hexene, 1-heptene, and 1-octene, • the propylene copolymer has regiodefects of not more than 0.4 mol.-% determined by
    13 C-spectroscopy, and • said melt blown fiber and/or said propylene copolymer fulfill(s) the equation (1). wherein Tm [°C] is the melting temperature [given in °C] of melt blown fiber said and/or of said propylene copolymer measured according to ISO 11357-3, C2 [wt%] is the amount [given in weight percentage] of comonomers within said melt blown fiber and/or within said propylene copolymer determined with Fourier transform infrared spectroscopy (FTIR).