Method for producing a poly-1olefin in the presence of a ziegler catalyst
    21.
    发明申请
    Method for producing a poly-1olefin in the presence of a ziegler catalyst 有权
    在齐格勒催化剂存在下制备聚-1-烯烃的方法

    公开(公告)号:US20050239978A1

    公开(公告)日:2005-10-27

    申请号:US10514095

    申请日:2003-05-22

    摘要: The invention relates to a method for producing a poly-1-olefin by polymerization of a 1-olefin of the formula R4C═CH2, in which R4 is hydrogen or an alkyl radical having from 1 to 10 carbon atoms, in suspension, in solution or in the gas phase, at a temperature of from 20 to 200° C. and a pressure of from 0.5 to 50 bar, in the presence of a catalyst which consists of the product of the reaction of a magnesium alkoxide with a transition-metal compound (component a) and an organometallic compound (component b), whose component (a) has been produced by reacting a transitionmetal compound of titanium, zirconium, vanadium or chromium with a gelatinous dispersion of the magnesium alkoxide in an inert hydrocarbon. In accordance with the invention, the gelatinous dispersion is obtained by stirring, using a stirring element, or shearing, using a high-performance shearing tool, a suspension of a magnesium alkoxide powder having a mean particle size, expressed as the d50 value, in the range from 50 to 1000 um, in an aliphatic hydrocarbon in which the magnesium alkoxide particles are insoluble. The suspension has, before conversion into the dispersion, been subjected to heat treatment at a temperature in the range from 40 to 150° C. over a period of from 10 to 100 hours.

    摘要翻译: 本发明涉及通过聚合式R 4 C-CH 2 2-的1-烯烃制备聚-1-烯烃的方法,其中R 0 > 4是氢或具有1至10个碳原子的烷基,悬浮液,溶液或气相中,温度为20-200℃,压力为0.5至50 在由醇盐与过渡金属化合物(组分a)的反应产物和有机金属化合物(组分b)组成的催化剂的存在下,其组分(a)通过使 钛,锆,钒或铬的过渡金属化合物与烷氧基镁在惰性烃中的凝胶状分散体。 根据本发明,通过使用搅拌元件搅拌或使用高性能剪切工具剪切平均粒度的烷氧基镁粉末的悬浮液(表示为d< 在50〜1000μm的范围内,在烷氧基镁颗粒不溶的脂族烃中。 悬浮液在转化成分散体之前,在10〜100小时的时间内,在40〜150℃的温度下进行热处理。

    CATALYST COMPONENT FOR THE POLYMERIZATION OF OLEFINS
    25.
    发明申请
    CATALYST COMPONENT FOR THE POLYMERIZATION OF OLEFINS 有权
    用于烯烃聚合的催化剂组分

    公开(公告)号:US20120142873A1

    公开(公告)日:2012-06-07

    申请号:US13387102

    申请日:2010-08-02

    IPC分类号: C08F4/654 C08F110/02

    摘要: A solid catalyst component comprising the product of a process comprising (a) reacting a magnesium alcoholate of formula Mg(OR1)(OR2) compound, in which R1 and R2 are identical or different and are each an alkyl radical having 1 to 10 carbon atoms, with titanium tetrachloride carried out in a hydrocarbon at a temperature of 50-100° C., (b) subjecting the reaction mixture obtained in (a) to a heat treatment at a temperature of 110° C. to 200° C. for a time ranging from 3 to 25 hours (c) isolating and washing with a hydrocarbon the solid obtained in (b), said solid catalyst component having a Cl/Ti molar ratio higher than 2.5.

    摘要翻译: 一种固体催化剂组分,其包含以下方法的产物:(a)使式Mg(OR1)(OR2)化合物的醇镁化物与其中R 1和R 2相同或不同并且各自为具有1至10个碳原子的烷基 用四氯化钛在50-100℃的温度下在烃中进行,(b)将(a)中获得的反应混合物在110℃至200℃的温度下进行热处理, 时间为3至25小时(c)用(b)中获得的固体用烃分离和洗涤,所述固体催化剂组分的Cl / Ti摩尔比高于2.5。

    Process for preparing a blown film from a polyethylene molding composition
    26.
    发明申请
    Process for preparing a blown film from a polyethylene molding composition 审中-公开
    从聚乙烯模塑组合物制备吹塑薄膜的方法

    公开(公告)号:US20110171450A1

    公开(公告)日:2011-07-14

    申请号:US13033710

    申请日:2011-02-24

    IPC分类号: B29C49/04 B32B5/00 B32B27/32

    摘要: The invention relates to a polyethylene molding composition having a multimodal molar mass distribution particularly suitable for blow molding films having a thickness in the range from 8 to 200 μm. The molding composition has a density at a temperature of 23° C. in the range from 0.948 to 0.953 g/cm3 and an MFR190/5 of the final product after extrusion in the range from 0.10 to 0.50 dg/min. The composition comprises from 30 to 60% by weight of a first ethylene polymer fraction made of a homopolymer A having a first molecular weight, from 22 to 40% by weight of a second ethylene polymer fraction made of a further homopolymer or first copolymer B of ethylene and at least one first comonomer from the group of olefins having from 4 to 8 carbon atoms, the first copolymer B having a second molecular weight higher than the first molecular weight, and from 10 to 30% by weight of a third ethylene polymer fraction made of a second copolymer C having a third molecular weight higher than the second molecular weight. The molding composition of the invention allows to produce films having a good balance between processability and mechanical properties.

    摘要翻译: 本发明涉及具有特别适用于厚度在8至200μm范围内的吹塑薄膜的多峰摩尔质量分布的聚乙烯模塑组合物。 成型组合物的温度为23℃,密度为0.948〜0.953g / cm3,挤出后的最终产品的MFR190 / 5为0.10〜0.50dg / min。 该组合物包含30至60重量%的由具有第一分子量的均聚物A制成的第一乙烯聚合物部分,22至40重量%的由其它均聚物或第一共聚物B制成的第二乙烯聚合物部分 乙烯和来自具有4至8个碳原子的烯烃基团的至少一种第一共聚单体,第一共聚物B具有高于第一分子量的第二分子量和10至30重量%的第三乙烯聚合物部分 由具有高于第二分子量的第三分子量的第二共聚物C制成。 本发明的模塑组合物允许制备在加工性和机械性能之间具有良好平衡的膜。

    Process for producing low molecular-weight poly-1-olefins
    27.
    发明授权
    Process for producing low molecular-weight poly-1-olefins 失效
    低分子量聚-1-烯烃的制备方法

    公开(公告)号:US5917100A

    公开(公告)日:1999-06-29

    申请号:US864211

    申请日:1997-05-28

    CPC分类号: C08F10/00 Y10S526/905

    摘要: A catalyst formed by the reaction of a magnesium alkoxide dispersion having a particle size of from 100 to 3000 nm with a compound of a metal selected from the group comprising titanium, zirconium, vanadium and chromium and then with a chlorine-containing organoaluminum compound possesses a very good hydrogen responsiveness and a high activity even in the presence of molecular-weight regulators such as hydrogen. The catalyst is therefore outstandingly suitable for the production of low molecular-weight polyolefins. The catalyst makes possible the production of waxes having a reduced residual ash content. The large particle diameter and the low fines content of the polymer powder produced by suspension polymerization with this catalyst enables easy removal of the suspension medium and drying. The catalyst is furthermore advantageously used in solution polymerization and, because of the large particle diameter, in gas phase polymerization for producing low molecular-weight poly-1-olefins.

    摘要翻译: 由粒径为100〜3000nm的烷氧基镁分散体与选自钛,锆,钒,铬的金属化合物反应形成的催化剂,然后与含氯有机铝化合物反应形成的催化剂具有 甚至在分子量调节剂如氢气的存在下也具有非常好的氢响应性和高活性。 因此,催化剂非常适合于生产低分子量聚烯烃。 该催化剂使得生产具有减少的残余灰分含量的蜡成为可能。 通过与该催化剂的悬浮聚合制备的聚合物粉末的大粒径和低细粉含量可以容易地除去悬浮介质并干燥。 此外,催化剂有利地用于溶液聚合,并且由于粒径大,用于制备低分子量聚-1-烯烃的气相聚合。

    Films having improved mechanical properties
    29.
    发明授权
    Films having improved mechanical properties 有权
    具有改善的机械性能的膜

    公开(公告)号:US08673437B2

    公开(公告)日:2014-03-18

    申请号:US13228224

    申请日:2011-09-08

    IPC分类号: B32B3/00

    摘要: A blown film having a thickness from 8 to 200 μm and dart drop impact DDI of more than 400 g, comprising a polyethylene molding composition having a multimodal molar mass distribution; a density from 0.940 to 0.948 g/cm3; an MFR190/5, from 0.10 to 0.50 dg/min; comprising: 40 to 60% of an ethylene homopolymer A having a molecular weight; 25 to 45% of a copolymer B of ethylene and at least one comonomer selected from the group of olefins having from 4 to 8 carbon atoms, said copolymer B having a molecular weight higher than said molecular weight of homopolymer A; and 10 to 30% of a copolymer C of ethylene and at least one comonomer, said copolymer C having a molecular weight higher than said molecular weight of copolymer B, all percentages being based on the total weight of the molding composition.

    摘要翻译: 具有8至200μm厚度的吹塑薄膜和大于400g的落镖冲击DDI,包括具有多峰摩尔质量分布的聚乙烯模制组合物; 密度为0.940至0.948g / cm3; MFR190 / 5,0.10〜0.50dg / min; 包括:40〜60%的具有分子量的乙烯均聚物A; 25至45%的乙烯共聚物B和至少一种选自具有4至8个碳原子的烯烃的共聚单体,所述共聚物B的分子量高于均聚物A的分子量; 和10至30%的乙烯和至少一种共聚单体的共聚物C,所述共聚物C的分子量高于共聚物B的分子量,所有百分比均基于模塑组合物的总重量。