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    Heat-treated Ziegler-Natta catalysts for ethylene polymerization
    11.
    发明授权
    Heat-treated Ziegler-Natta catalysts for ethylene polymerization 有权
    用于乙烯聚合的热处理齐格勒 - 纳塔催化剂

    公开(公告)号：US08501653B2

    公开(公告)日：2013-08-06

    申请号：US13028390

    申请日：2011-02-16

    申请人： Lei Zhang ,  David Knoeppel

    发明人： Lei Zhang ,  David Knoeppel

    IPC分类号： B01J3/00 ,  B01J37/00 ,  C08F4/02 ,  C08F4/60

    CPC分类号： C08F10/00 ,  C08F110/02 ,  C08F4/6557 ,  C08F2500/04 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/20 ,  C08F2500/23 ,  C08F2500/26

    摘要： Catalyst systems, processes of forming the same and polymers formed therefrom are described herein. The processes of forming the catalyst systems generally include contacting a blend of an alkyl magnesium compound and an organoaluminum compound with an alcohol to form a magnesium dialkoxide compound; contacting the magnesium dialkoxide compound with a first agent to form a solution of reaction product “A”, the first agent including a halogenating/titanating agent; contacting the solution of reaction product “A” with a second agent to form a solid reaction product “B”, the second agent including a blend of a first metal halide and a metal alkoxide; contacting the solid reaction product “B” with a third agent to form a solid reaction product “C”, the third agent including a second metal halide; contacting the solid reaction product “C” with a fourth agent to form a solid reaction product “D”, the fourth agent including a third metal halide; contacting the solid reaction product “D” with a fifth agent to form a catalyst component, the fifth agent including a reducing agent; and heating an intermediate selected from reaction product “A”, reaction product “B”, reaction product “C”, reaction product “D” and combinations thereof to form a heat-treated catalyst that results in a shear response and a molecular weight distribution for a polymer produced by the heat-treated catalyst that are greater than a shear response and a molecular weight distribution for a polymer produced by an identical non-heat-treated catalyst.

    摘要翻译： 本文描述了催化剂体系，其形成方法和由其形成的聚合物。 形成催化剂体系的方法通常包括使烷基镁化合物和有机铝化合物的混合物与醇接触以形成二烷氧基镁化合物; 使二烷氧基镁化合物与第一试剂接触以形成反应产物“A”的溶液，第一试剂包括卤化/钛化剂; 使反应产物“A”的溶液与第二试剂接触以形成固体反应产物“B”，第二试剂包括第一金属卤化物和金属醇盐的共混物; 使固体反应产物“B”与第三试剂接触以形成固体反应产物“C”，第三试剂包括第二金属卤化物; 使固体反应产物“C”与第四试剂接触以形成固体反应产物“D”，第四试剂包括第三金属卤化物; 使固体反应产物“D”与第五试剂接触以形成催化剂组分，第五试剂包括还原剂; 并加热选自反应产物“A”，反应产物“B”，反应产物“C”，反应产物“D”及其组合的中间体，以形成导致剪切响应和分子量分布的热处理催化剂 对于由热处理催化剂制备的聚合物，该聚合物大于由相同的非热处理催化剂制备的聚合物的剪切响应和分子量分布。

    Preparation of supported chromium catalyst and polymerization process
    15.
    发明申请
    Preparation of supported chromium catalyst and polymerization process 失效
    负载型铬催化剂的制备及聚合工艺

    公开(公告)号：US20090198026A1

    公开(公告)日：2009-08-06

    申请号：US12012038

    申请日：2008-01-31

    申请人： Ricky McCormick ,  David Knoeppel

    发明人： Ricky McCormick ,  David Knoeppel

    IPC分类号： C08F4/24 ,  B01J23/26

    CPC分类号： C08F210/16 ,  C08F4/22 ,  C08F4/69 ,  C08F4/24 ,  C08F2/34 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/19 ,  C08F2500/07

    摘要： A process for the preparation of a chromium-type supported olefin polymerization catalyst. A fluidized bed of support particles in an inert carrier gas is established. A chromium (III) compound is added to the fluidized support particles to provide a supported catalyst component. The supported catalyst component is activated to convert at least a portion of the chromium (III) to Chromium (VI). The chromium (III) containing particles may be recovered from the fluidized bed and then activated or they may be activated in the fluidized bed. Also the support particles can be treated in the fluidized bed with other treatment agents. The support particles may be pretreated with a solution of a boron treating agent prior to incorporation of the support in the fluidized bed.

    摘要翻译： 一种制备铬型负载型烯烃聚合催化剂的方法。 建立了惰性载气中载体颗粒的流化床。 向流化载体颗粒中加入铬（III）化合物以提供负载型催化剂组分。 活化负载的催化剂组分以将至少一部分铬（III）转化为铬（VI）。 含有铬（III）的颗粒可以从流化床中回收，然后活化，或者它们可以在流化床中活化。 还可以在流化床中用其它处理剂处理载体颗粒。 在将载体引入流化床之前，载体颗粒可以用硼处理剂的溶液进行预处理。

    Methods for Improving Heat Transfer in Polymerization Processes
    16.
    发明申请
    Methods for Improving Heat Transfer in Polymerization Processes 审中-公开
    改善聚合过程热传递的方法

    公开(公告)号：US20090131616A1

    公开(公告)日：2009-05-21

    申请号：US12260154

    申请日：2008-10-29

    申请人： David Knoeppel ,  Steve Nitz ,  Steven Gray

    发明人： David Knoeppel ,  Steve Nitz ,  Steven Gray

    IPC分类号： C08F4/08

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F2/14 ,  C08F2/00 ,  C08F2500/23 ,  C08F2500/02 ,  C08F2500/12 ,  C08F2500/05 ,  C08F2500/24

    摘要： Methods for improving heat transfer in polymerization processes are described herein. The methods generally include contacting olefin monomer with a catalyst system within a reaction zone to form particles having a first average particle size and altering the reaction zone to improve heat transfer and form polymer particles having a second average particle size. For example, the second average particle size may be larger than the first average particle size and the second particle size results in improved heat transfer over the first particle size.

    摘要翻译： 本文描述了改善聚合方法中热传递的方法。 所述方法通常包括使烯烃单体与反应区内的催化剂体系接触以形成具有第一平均粒径并改变反应区以改善热传递并形成具有第二平均粒度的聚合物颗粒的颗粒。 例如，第二平均粒径可以大于第一平均粒径，第二粒径导致在第一粒径上的热传递改善。

    Ziegler-natta catalyst systems and polymers formed therefrom
    18.
    发明授权
    Ziegler-natta catalyst systems and polymers formed therefrom 有权
    齐格勒 - 纳塔催化剂体系和由其形成的聚合物

    公开(公告)号：US08592535B2

    公开(公告)日：2013-11-26

    申请号：US12685198

    申请日：2010-01-11

    申请人： Kayo Vizzini ,  David Knoeppel ,  Lei Zhang

    发明人： Kayo Vizzini ,  David Knoeppel ,  Lei Zhang

    IPC分类号： C08F4/46 ,  C08F4/18

    CPC分类号： C08F10/00 ,  C08F110/02 ,  C08F4/6548 ,  C08F4/6555 ,  C08F2500/07 ,  C08F2500/26

    摘要： Processes of forming catalyst systems, catalyst systems and polymers formed therefrom are described herein. The processes generally include providing a first compound including a magnesium dialkoxide, contacting the first compound with a second compound to form a solution of reaction product “A”, wherein the second compound is generally represented by the formula: Ti(OR1)4; wherein R1 is selected from C1 to C10 linear to branched alkyls, contacting the solution of reaction product “A” with a first metal halide to form a solid reaction product “B”, contacting solid reaction product “B” with a second metal halide to form reaction product “C” and contacting reaction product “C” with reducing agent to form a catalyst component.

    摘要翻译： 本文描述了形成催化剂体系，催化剂体系和由其形成的聚合物的方法。 所述方法通常包括提供包含二烷氧基镁的第一化合物，使第一化合物与第二化合物接触以形成反应产物“A”的溶液，其中第二化合物通常由下式表示：Ti（OR 1）4; 其中R1选自C1至C10直链至支链烷基，使反应产物“A”的溶液与第一金属卤化物接触以形成固体反应产物“B”，使固体反应产物“B”与第二金属卤化物接触 形成反应产物“C”并使反应产物“C”与还原剂接触以形成催化剂组分。

    METHODS OF MAKING STYRENIC POLYMERIC COMPOSITIONS AND METHODS OF USING SAME
    19.
    发明申请
    METHODS OF MAKING STYRENIC POLYMERIC COMPOSITIONS AND METHODS OF USING SAME 审中-公开
    制备苯乙烯聚合物组合物的方法及其使用方法

    公开(公告)号：US20120245285A1

    公开(公告)日：2012-09-27

    申请号：US13267032

    申请日：2011-10-06

    申请人： David Knoeppel

    发明人： David Knoeppel

    IPC分类号： C08L25/06 ,  C08L25/10 ,  C08K5/134 ,  C08L25/08

    CPC分类号： C08F279/02 ,  C08K5/098 ,  C08F212/08 ,  C08L51/04

    摘要： A method of preparing a reaction mixture comprising a styrene monomer, an antioxidant, and a reaction rate improving additive, contacting the reaction mixture with an antioxidant reactive compound, and placing the reaction mixture under conditions suitable for polymerization of the styrene monomer to a styrenic polymer wherein the polymerization occurs at an overall reaction rate that is increased by equal to or less than 20% when compared to an otherwise similar polymerization process carried out in the absence of the reaction rate improving additive. The reaction rate improving additive can be a sodium or calcium salt of an organic acid.

    摘要翻译： 一种制备包含苯乙烯单体，抗氧化剂和反应速率改进添加剂的反应混合物的方法，使反应混合物与抗氧化反应性化合物接触，并将反应混合物置于适合于将苯乙烯单体聚合成苯乙烯聚合物的条件下 其中当与不存在反应速率改进添加剂时进行的其它相似的聚合方法相比，聚合反应发生在总反应速率上，其增加等于或小于20％。 反应速率改善添加剂可以是有机酸的钠盐或钙盐。

    PREPARATION OF SUPPORTED CHROMIUM CATALYST AND POLYMERIZATION PROCESS
    20.
    发明申请
    PREPARATION OF SUPPORTED CHROMIUM CATALYST AND POLYMERIZATION PROCESS 失效
    支持的铬催化剂的制备和聚合方法

    公开(公告)号：US20120208694A1

    公开(公告)日：2012-08-16

    申请号：US13454574

    申请日：2012-04-24

    申请人： Ricky McCormick ,  David Knoeppel

    发明人： Ricky McCormick ,  David Knoeppel

    IPC分类号： C08F4/00 ,  C08F4/18 ,  C08F4/69

    CPC分类号： C08F210/16 ,  C08F4/22 ,  C08F4/69 ,  C08F4/24 ,  C08F2/34 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/19 ,  C08F2500/07

    摘要： A process for the preparation of a chromium-type supported olefin polymerization catalyst. A fluidized bed of support particles in an inert carrier gas is established. A chromium (III) compound is added to the fluidized support particles to provide a supported catalyst component. The supported catalyst component is activated to convert at least a portion of the chromium (III) to Chromium (VI). The chromium (III) containing particles may be recovered from the fluidized bed and then activated or they may be activated in the fluidized bed. Also the support particles can be treated in the fluidized bed with other treatment agents. The support particles may be pretreated with a solution of a boron treating agent prior to incorporation of the support in the fluidized bed.

    摘要翻译： 一种制备铬型负载型烯烃聚合催化剂的方法。 建立了惰性载气中载体颗粒的流化床。 向流化载体颗粒中加入铬（III）化合物以提供负载型催化剂组分。 活化负载的催化剂组分以将至少一部分铬（III）转化为铬（VI）。 含有铬（III）的颗粒可以从流化床中回收，然后活化，或者它们可以在流化床中活化。 还可以在流化床中用其它处理剂处理载体颗粒。 在将载体引入流化床之前，载体颗粒可以用硼处理剂的溶液进行预处理。