Preparation of low-density ethylene copolymers in fluid bed reactor
    7.
    发明授权
    Preparation of low-density ethylene copolymers in fluid bed reactor 失效
    在流化床反应器中制备低密度乙烯共聚物

    公开(公告)号:US4482687A

    公开(公告)日:1984-11-13

    申请号:US506772

    申请日:1983-06-24

    IPC分类号: C08F2/34 C08F210/16 C08F10/02

    摘要: Ethylene copolymers having a density of about 0.91 to 0.94 and a melt flow ratio of about .gtoreq.26 to .ltoreq.40 are readily produced in a low pressure gas phase process at a productivity of .gtoreq.500,000 pounds of polymer per pound of Ti with a catalyst formed from selected organo aluminum compounds and a composition prepared by copulverizing magnesium dihalide with a complex obtained by contacting a titanium compound of the structure Ti(OR).sub.a X.sub.b with an ether, ester, ketone or amine,wherein R is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical, or COR' where R' is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical,X is Cl, Br, I or mixtures thereof, a is 0 or 1, b is 2 to 4 inclusive and a+b=3 or 4.

    摘要翻译: 密度为约0.91至0.94,熔体流动比约> = = 26至<= 40的乙烯共聚物在低压气相法中容易产生,生产率≥500,000磅聚合物/磅 Ti与由选择的有机铝化合物形成的催化剂组成的组合物,以及通过使二卤化镁与通过使Ti(OR)a Xb结构的钛化合物与醚,酯,酮或胺接触而获得的络合物制备的组合物,其中R是C1 C 14脂族或芳族烃基,或COR',其中R'为C 1至C 14脂族或芳族烃基,X为Cl,Br,I或其混合物,a为0或1,b为2至4, + b = 3或4。

    Ethylene-based polymer compositions, methods of making the same, and articles prepared from the same
    8.
    发明授权
    Ethylene-based polymer compositions, methods of making the same, and articles prepared from the same 有权
    乙烯基聚合物组合物,其制备方法和由其制备的制品

    公开(公告)号:US09175111B2

    公开(公告)日:2015-11-03

    申请号:US12811015

    申请日:2008-12-18

    摘要: The invention provides a composition comprising a blend, which comprises a high molecular weight ethylene-based polymer, and a low molecular weight ethylene-based polymer, and wherein the high molecular weight ethylene-based polymer has a density less than, or equal to, 0.955 g/cm3, and wherein the blend has a high load melt index (I21) greater than, or equal to, 15 g/10 min, and wherein the blend has a molecular weight distribution (Mw/Mn) greater than, or equal to, 15. The invention also provides a composition comprising a blend, which comprises a high molecular weight ethylene-based polymer and a low molecular weight ethylene-based polymer, and wherein the high molecular weight ethylene-based polymer component has a density less than, or equal to, 0.945 g/cm3, and a melt index (I2) less than, or equal to, 0.1 g/10 min, and wherein the blend has a high load melt index (I21) less than, or equal to, 15 g/10 min, and a melt index (I5) less than, or equal to 1 g/10 min, and a molecular weight distribution (Mw/Mn) greater than, or equal to, 15. Additional compositions are disclosed.

    摘要翻译: 本发明提供一种包含共混物的组合物,其包含高分子量乙烯基聚合物和低分子量乙烯基聚合物,并且其中所述高分子量乙烯基聚合物的密度小于或等于 0.955g / cm 3,并且其中所述共混物具有大于或等于15g / 10min的高负荷熔体指数(I21),并且其中所述共混物的分子量分布(Mw / Mn)大于或等于 本发明还提供一种包含共混物的组合物,其包含高分子量乙烯基聚合物和低分子量乙烯基聚合物,并且其中高分子量乙烯基聚合物组分的密度小于 ,或等于0.945g / cm 3,熔体指数(I 2)小于或等于0.1g / 10min,并且其中所述共混物具有小于或等于的熔体指数(I 21) 15g / 10min,熔体指数(I5)小于或等于1g / 10min,分子w 八分配(Mw / Mn)大于或等于15.另外的组合物被公开。