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    Polyolefin composition for rotomolding
    4.
    发明授权
    Polyolefin composition for rotomolding 有权
    用于滚塑的聚烯烃组合物

    公开(公告)号：US07332543B2

    公开(公告)日：2008-02-19

    申请号：US10469601

    申请日：2002-03-01

    申请人： Arild Follestad ,  Espen Ommundsen ,  Knut Fosse

    发明人： Arild Follestad ,  Espen Ommundsen ,  Knut Fosse

    IPC分类号： C08L23/00 ,  C08L23/04

    CPC分类号： C08L23/0815 ,  C08L23/10 ,  C08L2205/02 ,  C08L2205/06 ,  C08L2314/06 ,  Y10T428/1397 ,  C08L2666/04

    摘要： A polymer composition suitable for rotomoulding comprising I) An ethylene homopolymer or copolymer with at least one other C3-10 ? olefin, having a melt flow rate of 0.5 to 30, a molecular weight distribution (Mw/Mn) of less than 4, an Mw of 50,000 to 110,000, a density of 0.940 g/cm3 to 0.970 g/cm3 and a melting point of 100 to 145° C.; or I) a propylene homopolymer or copolymer with at least one other C2-10 ? olefin, having a melt flow rate of 0.5 to 30, a molecular weight distribution (Mw/Mn) of less than 4, an Mw of 150,000 to 300,000, and a melting point of 100 to 170° C.; and II) an ethylene homo or copolymer with at least one other C3-10 ?-olefin, having a melt flow rate of within 40% of the melt flow rate of component (I), a molecular weight distribution of (Mw/Mn) of less than 4, an Mw of within 30% of the Mw of component (I), a density of 0.880 g/cm3 to 0.940 g/cm3 said density being at least 0.010 g/cm3 less than the density of component (I) and a melting point of at least 5° C. less than that of component (I); or II) a propylene homo or copolymer with at least one other C2-10 ?-olefin having a melt flow rate of within 40% of the melt flow rate of component (I), a molecular weight distribution of (Mw/Mn) of less than 4, an Mw of within 30% of the Mw of component (I), and a melting point of at least 10° C. less than that of component (I).

    摘要翻译： 适用于滚塑的聚合物组合物，其包含I）乙烯均聚物或与至少一种其它C 3-10的共聚物 烯烃，熔体流动速率为0.5〜30，分子量分布（Mw / Mn）小于4，Mw为50,000〜110,000，密度为0.940g / cm3〜0.970g / cm3，熔点为 100〜145℃。 或I）具有至少一个其它C 2-10的丙烯均聚物或共聚物 烯烃，熔体流动速率为0.5〜30，分子量分布（Mw / Mn）小于4，Mw为15万〜300,000，熔点为100〜170℃。 和II）与至少一种其它C3-10α-烯烃的乙烯均聚物或共聚物，其熔体流动速率在组分（I）的熔体流动速率的40％以内，分子量分布（Mw / Mn） 小于4，组分（I）的Mw的30％以内的Mw，密度为0.880g / cm 3至0.940g / cm 3，所述密度比组分（I）的密度小至少0.010g / cm 3， 并且比组分（I）的熔点低至少5℃的熔点; 或II）与至少一种其它C2-10α-烯烃的丙烯均聚物或共聚物，其熔体流动速率在组分（I）的熔体流动速率的40％以内，分子量分布（Mw / Mn）为 小于4，组分（I）的Mw的30％以内的Mw，并且熔点至少比组分（I）的熔点低10℃。