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    • 6. 发明申请
    • MELT BLOWN FIBER
    • 熔吹纤维
    • WO2011092092A3
    • 2011-08-04
    • PCT/EP2011/050676
    • 2011-01-19
    • BOREALIS AGVAN PARIDON, HenkBROEDERS, BertSARS, Wilhelmus henricus AdolfFIEBIG, JoachimACKERMANS, Nina
    • VAN PARIDON, HenkBROEDERS, BertSARS, Wilhelmus henricus AdolfFIEBIG, JoachimACKERMANS, Nina
    • D01F6/30C08F210/06D01D5/098D04H1/56
    • 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).
    • 平均直径不大于5.0μm的熔喷纤维,所述纤维包含至少85重量%的丙烯共聚物,其中·所述熔喷纤维和/或所述丙烯共聚物 具有根据ISO 1133测量的至少200g / 10min的熔体流动速率MFR 2(230℃),·所述丙烯共聚物具有0.5-5.5wt%的共聚单体含量, %时,共聚单体是选自1-丁烯,1-戊烯,1-己烯,1-戊烯,1-己烯,1-戊烯,1-戊烯,1-己烯, 1-己烯,1-庚烯和1-辛烯,·丙烯共聚物具有< 2,1> 通过13 C-光谱测定的不超过0.4摩尔%的区域特征,和·所述熔喷纤维和/或所述丙烯共聚物满足方程(1)。 其中Tm [℃]是根据ISO 11357-3测量的熔喷纤维和/或所述丙烯共聚物的熔融温度[以℃表示],C2 [wt%]是以重量 (FTIR)测定的所述熔喷纤维内和/或所述丙烯共聚物内的共聚单体的百分比。