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    Catalyst for the polymerization of propylene and its use
    1.
    发明授权
    Catalyst for the polymerization of propylene and its use 有权
    用于丙烯聚合的催化剂及其用途

    公开(公告)号：US06376417B1

    公开(公告)日：2002-04-23

    申请号：US09605828

    申请日：2000-06-29

    申请人： Aichun Yang ,  Zhulan Li ,  Yun Zhao ,  Wenbo Song ,  Juziu Yang ,  Bingquan Mao ,  Huiru Yang

    发明人： Aichun Yang ,  Zhulan Li ,  Yun Zhao ,  Wenbo Song ,  Juziu Yang ,  Bingquan Mao ,  Huiru Yang

    IPC分类号： B01J3100

    CPC分类号： B01J31/0258 ,  B01J31/0201 ,  B01J31/0274 ,  B01J31/143 ,  B01J37/031 ,  C08F10/00 ,  C08F110/06 ,  C08F4/651 ,  C08F4/6543 ,  C08F2500/18 ,  C08F2500/24

    摘要： A catalyst for the polymerization of propylene comprising components (A), (B) and (C) is provided. Component (A) is a solid product prepared by dissolving a halide of magnesium in a solvent system consisting of an organic epoxy compound, an organic phosphorus compound and an inert diluent to form a homogeneous solution; mixing the homogeneous solution with a halide of titanium to form a mixture; precipitating a solid from the mixture in the presence of an auxiliary precipitant; treating the solid with a polycarboxylic ester to load the ester on the solid; and treating the ester loaded solid with the halide of titanium and the inert diluent. Component (B) is an organic aluminium compound, and component (C) is an organic silicon compound. The particle size of the catalyst can be adjusted by increasing the amount of the inert diluent at a low ratio of the epoxy compound to the phosphorus compound.

    摘要翻译： 提供了包含组分（A），（B）和（C）的丙烯聚合催化剂。 组分（A）是通过将镁的卤化物溶解在由有机环氧化合物，有机磷化合物和惰性稀释剂组成的溶剂体系中以形成均匀溶液而制备的固体产物; 将均匀溶液与钛的卤化物混合以形成混合物; 在辅助沉淀剂存在下，从混合物中沉淀出固体; 用聚羧酸酯处理固体以将酯负载在固体上; 并用钛和惰性稀释剂的卤化物处理酯负载的固体。 组分（B）是有机铝化合物，组分（C）是有机硅化合物。 可以通过以低比例的环氧化合物与磷化合物的比例增加惰性稀释剂的量来调节催化剂的粒径。

    PROCESS FOR THE PREPARATION OF HIGH PERFORMANCE POLYPROPYLENE
    4.
    发明申请
    PROCESS FOR THE PREPARATION OF HIGH PERFORMANCE POLYPROPYLENE 审中-公开
    制备高性能聚丙烯的方法

    公开(公告)号：US20090326171A1

    公开(公告)日：2009-12-31

    申请号：US12297857

    申请日：2007-04-20

    申请人： Wenbo Song ,  Meifang Guo ,  Jinliang Qiao ,  Zhichao Yang ,  Shijun Zhang ,  Luqiang Yu

    发明人： Wenbo Song ,  Meifang Guo ,  Jinliang Qiao ,  Zhichao Yang ,  Shijun Zhang ,  Luqiang Yu

    IPC分类号： C08F2/01 ,  C08F4/42

    CPC分类号： C08F110/02 ,  C08F10/00 ,  C08F110/06 ,  Y02P20/52 ,  Y10T428/139 ,  C08F2/001 ,  C08F2500/04 ,  C08F2500/15 ,  C08F4/6465

    摘要： The invention discloses a process for preparing high-performance propylene polymers, the process utilizing a high activity, highly stereoselective Ziegler-Natta catalyst and two or more stages of polymerization carried out under different hydrogen concentrations to prepare propylene polymers having broad molecular weight distribution, wherein non-unifomess of isotacticity of molecular chains of the final propylene polymers is improved by adjusting or controlling stereoselectivity of catalytic active sites under different hydrogen concentrations, namely, making the low molecular weight fraction of the polymers having a higher isotacticity and making the high molecular weight fraction of the polymers having a lower isotacticity, thereby overcoming the drawbacks of the propylene polymers having broad molecular weight distribution known in the art. The resulting final polymers have excellent combined properties, in particular, remarkably improved mechanical properties.

    摘要翻译： 本发明公开了一种制备高性能丙烯聚合物的方法，该方法利用高活性，高立体选择性齐格勒 - 纳塔催化剂和在不同氢气浓度下进行的两个或多个阶段的聚合，以制备具有宽分子量分布的丙烯聚合物，其中 通过在不同氢浓度下调节或控制催化活性位点的立体选择性，即使得聚合物的低分子量分数具有更高的全同立构规整度并使其具有高分子量，从而提高了最终丙烯聚合物分子链全同立构规整度的非均匀性 具有较低全同立构规整度的聚合物部分，从而克服了本领域已知的具有宽分子量分布的丙烯聚合物的缺点。 所得的最终聚合物具有优异的组合性能，特别是显着提高的机械性能。

    Propylene homopolymer having high melt strength and preparation method thereof
    6.
    发明授权
    Propylene homopolymer having high melt strength and preparation method thereof 有权
    具有高熔体强度的丙烯均聚物及其制备方法

    公开(公告)号：US09068030B2

    公开(公告)日：2015-06-30

    申请号：US13574435

    申请日：2011-01-21

    申请人： Wenbo Song ,  Meifang Guo ,  Shijun Zhang ,  Wenjun Wei ,  Honghong Huang ,  Luqiang Yu ,  Tao Liu ,  Huijie Hu ,  Huan Xu ,  Peiqian Yu ,  Xiaomeng Zhang

    发明人： Wenbo Song ,  Meifang Guo ,  Shijun Zhang ,  Wenjun Wei ,  Honghong Huang ,  Luqiang Yu ,  Tao Liu ,  Huijie Hu ,  Huan Xu ,  Peiqian Yu ,  Xiaomeng Zhang

    IPC分类号： C08F4/16 ,  C08F4/58 ,  C08F2/38 ,  C08F110/06

    CPC分类号： C08F110/06 ,  C08F2/001 ,  C08F2500/01 ,  C08F2500/04 ,  C08F2500/11 ,  C08F2500/12 ,  C08F4/6465 ,  C08F4/6492

    摘要： The present invention provides a process for preparing high melt strength propylene polymer by direct polymerization, comprising that a propylene polymer with wide molecular weight distribution and containing “very high molecular weight fraction” can be prepared by controlling the species and ratios of the external electron donors in the Ziegler-Natta catalyst system at different reaction stages according to the requirement for different molecular weight fractions in the different propylene polymerization stage of the series operation, and said polymer has excellent mechanical properties, especially with very high melt strength. The present invention also provides a propylene homopolymer with high melt strength, comprising the following features: (1) the MFR is 0.2-10 g/10 min at 230° C. with a load of 2.16 kg; (2) the molecular weight distribution Mw/Mn is 6-20; (3) the content of the fraction with a molecular weight higher than 5,000,000 is higher than or equal to 0.8 wt %; (4) Mz+1/Mn is higher than or equal to 70. Said homopolymer can be used in the preparation of foam products, thermoforming products, biaxial stretching films, blown films and blow-molded products.

    摘要翻译： 本发明提供了一种通过直接聚合制备高熔体强度丙烯聚合物的方法，包括具有宽分子量分布并含有“非常高分子量级分”的丙烯聚合物可以通过控制外部电子给体的种类和比例 在不同反应阶段的齐格勒 - 纳塔催化剂体系中，根据在不同的丙烯聚合反应阶段对不同分子量馏分的要求，所述聚合物具有优异的机械性能，特别是具有非常高的熔体强度。 本发明还提供具有高熔体强度的丙烯均聚物，其特征在于：（1）在230℃，2.16kg负荷下，MFR为0.2-10g / 10min; （2）分子量分布Mw / Mn为6〜20; （3）分子量高于5,000,000的级分的含量高于或等于0.8wt％; （4）Mz + 1 / Mn大于或等于70.所述均聚物可用于制备泡沫产品，热成型产品，双轴拉伸膜，吹塑薄膜和吹塑产品。

    PROPYLENE HOMOPOLYMER HAVING HIGH MELT STRENGTH AND PREPARATION METHOD THEREOF
    7.
    发明申请
    PROPYLENE HOMOPOLYMER HAVING HIGH MELT STRENGTH AND PREPARATION METHOD THEREOF 有权
    具有高熔体强度的丙烯共聚物及其制备方法

    公开(公告)号：US20130023598A1

    公开(公告)日：2013-01-24

    申请号：US13574435

    申请日：2011-01-21

    申请人： Wenbo Song ,  Meifang Guo ,  Shijun Zhang ,  Wenjun Wei ,  Honghong Huang ,  Luqiang Yu ,  Tao Liu ,  Huijie Hu ,  Huan Xu ,  Peiqian Yu ,  Xiaomeng Zhang

    发明人： Wenbo Song ,  Meifang Guo ,  Shijun Zhang ,  Wenjun Wei ,  Honghong Huang ,  Luqiang Yu ,  Tao Liu ,  Huijie Hu ,  Huan Xu ,  Peiqian Yu ,  Xiaomeng Zhang

    IPC分类号： C08F2/01 ,  C08F110/06

    CPC分类号： C08F110/06 ,  C08F2/001 ,  C08F2500/01 ,  C08F2500/04 ,  C08F2500/11 ,  C08F2500/12 ,  C08F4/6465 ,  C08F4/6492

    摘要： The present invention provides a process for preparing high melt strength propylene polymer by direct polymerization, comprising that a propylene polymer with wide molecular weight distribution and containing “very high molecular weight fraction” can be prepared by controlling the species and ratios of the external electron donors in the Ziegler-Natta catalyst system at different reaction stages according to the requirment for different molecular weight fractions in the different propylene polymerization stage of the series operation, and said polymer has excellent mechnical properties, especially with very high melt strength. The present invention also provides a propylene homopolymer with high melt strength, comprising the following features: (1) the MFR is 0.2-10 g/10 min at 230° C. with a load of 2.16 kg; (2) the molecular weight distribution Mw/Mn is 6-20; (3) the content of the fraction with a molecular weight higher than 5,000,000 is higher than or equal to 0.8 wt %; (4) Mz+1/Mn is higher than or equal to 70. Said homopolymer can be used in the preparation of foam products, thermoforming products, biaxial stretching films, blown films and blow-molded products.

    摘要翻译： 本发明提供了一种通过直接聚合制备高熔体强度丙烯聚合物的方法，包括具有宽分子量分布且含有非常高分子量级分的丙烯聚合物可以通过控制外部电子给体的种类和比例来制备 齐格勒 - 纳塔催化剂体系在不同反应阶段根据不同分子量馏分在不同丙烯聚合反应阶段的操作要求，所述聚合物具有优异的机械性能，特别是具有非常高的熔体强度。 本发明还提供具有高熔体强度的丙烯均聚物，其特征在于：（1）在230℃，2.16kg负荷下，MFR为0.2-10g / 10min; （2）分子量分布Mw / Mn为6〜20; （3）分子量高于5,000,000的级分的含量高于或等于0.8wt％; （4）Mz + 1 / Mn大于或等于70.所述均聚物可用于制备泡沫产品，热成型产品，双轴拉伸膜，吹塑薄膜和吹塑产品。