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    • 3. 发明授权
    • Highly filled soft polyolefin compositions
    • 高填充软聚烯烃组合物
    • US07125924B2
    • 2006-10-24
    • US10495299
    • 2003-08-28
    • Umberto CredaliUgo ZucchelliPaolo Goberti
    • Umberto CredaliUgo ZucchelliPaolo Goberti
    • C08K5/34C08K3/26C08K9/34
    • C08L23/10C08L23/16C08L2201/02C08L2207/02C08L2666/06
    • Polyolefin compositions filled with high amounts of inorganic fillers comprising, by weight: (I) 20 to 60% by weight of an heterophasic polyolefin composition comprising: A) from 8 to 25% by weight of a crystalline polymer fraction selected from propylene homopolymer, propylene copolymers and mixture there; and B) from 75 to 92% by weight of an elastomeric fraction comprising at least an elastomeric copolymer of propylene or ethylene with 15 to 45% of at least one alpha-olefin, having solubility in xylene at room temperature greater than 50% by weight, the intrinsic viscosity of the xylene soluble fraction ranging from 3.0 to 6.5 dl/g; and (II) 40 to 80% by weight of an inorganic filler selected from flame-retardant inorganic fillers and inorganic oxides or salts.
    • 填充有大量无机填料的聚烯烃组合物,其包含:(I)20至60重量%的多相聚烯烃组合物,其包含:A)8至25重量%的结晶聚合物级分,其选自丙烯均聚物,丙烯 共聚物和混合物; 和B)75至92重量%的弹性体级分,其包含至少丙烯或乙烯与15至45%的至少一种α-烯烃的弹性体共聚物,其在室温下在二甲苯中的溶解度大于50重量% ,二甲苯可溶级分的特性粘度为3.0〜6.5dl / g; 和(II)40至80重量%的选自阻燃无机填料和无机氧化物或盐的无机填料。