Polymer blends
    6.
    发明授权
    Polymer blends 有权
    聚合物共混物

    公开(公告)号:US06191223B1

    公开(公告)日:2001-02-20

    申请号:US09336732

    申请日:1999-06-21

    IPC分类号: C08F800

    摘要: a) from 50 to 85% by weight of a copolymer of propylene (A) with 1-alkenes comprising from 20 to 80% by weight of a high molecular weight copolymer of propylene (I) containing from 2.0 to 7.0% by weight of copolymerized 1-alkene and having a viscosity of from 500 to 1200 ml/g and from 20 to 80% by weight of a low molecular weight copolymer of propylene (II) containing from 4.0 to 10.0% by weight of copolymerized 1-alkene and having a viscosity of from 200 to 450 ml/g, b) from 5 to 10% by weight of a polymer of ethylene (B) and c) from 10 to 40% by weight of a rubber-like copolymer of propylene and a 1-alkene (C) containing from 30 to 70% by weight of copolymerized 1-alkene have a melt flow index (MFI) at 230° C. under a weight of 5 kg of from 0.1 to 5 g/10 min, a molecular weight distribution (Mw/Mn) of from 6 to 20 and a total 1-alkene content of from 4 to 15% by weight.

    摘要翻译: a)50至85重量%的丙烯(A)与1-烯烃的共聚物,其包含20至80重量%的含有2.0至7.0重量%共聚合的丙烯(I)的高分子量共聚物 并且具有500至1200ml / g的粘度和20至80重量%的含有4.0至10.0重量%的共聚1-烯烃的丙烯(II)的低分子量共聚物,并且具有 粘度为200〜450ml / g,b)5〜10重量%的乙烯(B)和(c)的聚合物,c)10〜40重量%的丙烯与1-烯烃的橡胶状共聚物 C)含有30至70重量%的共聚1-烯烃,熔体流动指数(MFI)在230℃下以5kg的重量计0.1至5g / 10min,分子量分布(Mw / Mn)为6〜20,总1-烯烃含量为4〜15重量%。