Process for the production of a sticky polymer
    15.
    发明授权
    Process for the production of a sticky polymer 失效
    生产粘性聚合物的方法

    公开(公告)号:US4710538A

    公开(公告)日:1987-12-01

    申请号:US837215

    申请日:1986-03-10

    摘要: A process for the gas phase production of a sticky, but fluidizable, polymer comprising (i) introducing at least one gaseous monomer, which is a precursor for the polymer, into a bed of particles located in a fluidized bed reactor at a velocity sufficient to cause the particles to separate and act as a fluid; (ii) introducing into the bed a catalyst adapted to cause the monomer to polymerize; (iii) contacting the catalyst with the monomer at a temperature below the sticking temperature of the polymer and at a temperature and pressure sufficient to polymerize the monomer in the presence of the catalyst whereby the polymer is produced; and (iv) passing the polymer from the fluidized bed reactor into at least one fluid bed reactor wherein a fluidizing gas is passed through a bed of particles at a velocity sufficient to cause the particles to separate and act as a fluid; the polymer is passed through the fluid bed reactor in an essentially plug flow mode; and the polymer is maintained in an agitated state.

    摘要翻译: 用于气相生产粘性但可流化的聚合物的方法,其包括(i)将作为聚合物的前体的至少一种气态单体引入位于流化床反应器中的颗粒床,速度足以 使颗粒分离并充当流体; (ii)将适于使单体聚合的催化剂引入床中; (iii)在低于聚合物粘附温度的温度下和在足以在催化剂存在下使单体聚合的温度和压力下使催化剂与单体接触,由此制备聚合物; 和(iv)将聚合物从流化床反应器送入至少一个流化床反应器,其中流化气体以足以使颗粒分离并用作流体的速度通过颗粒床; 聚合物以基本上为流动的方式通过流化床反应器; 并且聚合物保持在搅拌状态。

    METHOD OF MAKING ZIEGLER-NATTA TYPE CATALYSTS
    19.
    发明申请
    METHOD OF MAKING ZIEGLER-NATTA TYPE CATALYSTS 有权
    制备ZIEGLER-NATTA型催化剂的方法

    公开(公告)号:US20110251361A1

    公开(公告)日:2011-10-13

    申请号:US12759515

    申请日:2010-04-13

    IPC分类号: C08F4/76 C08F4/603 C08F4/60

    摘要: A process for making a Ziegler-Natta-type catalyst precursor including contacting a Group 4 metal compound with one or more Titanium compounds selected from the group of TiCl3 (Al-activated or hydrogen-reduced), and Ti(OR)4 where R is ethyl, isopropyl or butyl in the presence of an alcohol solution having at least one C2-C4 alcohol and at least one of MgCl2 and magnesium compounds which form MgCl2 in the presence of the alcohol solution to form a catalyst precursor solution is provided. Also provided are catalysts made from the precursors produced by the process. Also provided are polymers made using the catalysts.

    摘要翻译: 包括使第4族金属化合物与选自TiCl 3(Al活化或还原氢)和Ti(OR)4中的一种或多种钛化合物接触的齐格勒 - 纳塔型催化剂前体的方法,其中R为 乙醇,异丙基或丁基,在醇溶液存在下,在具有至少一种C 2 -C 4醇的醇溶液和至少一种形成MgCl 2的MgCl 2和镁化合物的存在下,提供了形成催化剂前体溶液的方法。 还提供了由由该方法制备的前体制成的催化剂。 还提供了使用这些催化剂制备的聚合物。

    ETHYLENE-BASED POLYMER COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED FROM THE SAME
    20.
    发明申请
    ETHYLENE-BASED POLYMER COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED FROM THE SAME 有权
    基于乙烯的聚合物组合物,其制备方法和从其制备的制品

    公开(公告)号:US20110034635A1

    公开(公告)日:2011-02-10

    申请号:US12811015

    申请日:2008-12-18

    IPC分类号: C08L23/06

    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。