Polymers having broad molecular weight distributions and methods of making the same
    33.
    发明申请
    Polymers having broad molecular weight distributions and methods of making the same 有权
    具有宽分子量分布的聚合物及其制备方法

    公开(公告)号:US20050239976A1

    公开(公告)日:2005-10-27

    申请号:US10829842

    申请日:2004-04-22

    IPC分类号: C08F2/38 C08F10/00 C08F210/16

    摘要: Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Using the cocatalyst in conjunction with the catalyst increases several properties, such as the high load melt index (HLMI), the MW, and the MN, of the polymers produced by this polymerization method. Polymer compositions produced by such methods have various unique properties, including a PDI greater than about 30. Additional embodiments include articles of manufacture or end use articles formed from such polymer compositions.

    摘要翻译: 聚合至少一种烯烃的方法包括使烯烃与包含铬的催化剂和包含非过渡金属环戊二烯基(Cp)化合物的助催化剂接触。 聚合可以在氢的存在下进行。 与催化剂一起使用助催化剂增加了几种性质,例如所生产的聚合物的高负载熔体指数(HLMI),M W W N N N N N N N N 通过该聚合方法。 通过这种方法制备的聚合物组合物具有各种独特的性质,包括大于约30的PDI。另外的实施方案包括由这种聚合物组合物形成的制品或最终用途制品。

    STANNOXY-SUBSTITUTED METALLOCENE CATALYSTS FOR OLEFIN AND ACETYLENE POLYMERIZATION
    34.
    发明申请
    STANNOXY-SUBSTITUTED METALLOCENE CATALYSTS FOR OLEFIN AND ACETYLENE POLYMERIZATION 有权
    用于烯烃和乙烯聚合的硅烷取代的金属催化剂

    公开(公告)号:US20050113245A1

    公开(公告)日:2005-05-26

    申请号:US10723350

    申请日:2003-11-26

    摘要: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a catalyst composition. One aspect of this invention is the formation and use of a catalyst composition comprising a stannoxy-substituted half-sandwich metallocene and an activator for olefin polymerization processes. For example, this invention encompasses the preparation of (η5-C5H5)Ti(OSnPh3)Cl2, its contact with an activator, for example, zinc-impregnated chlorided alumina, to form a catalyst composition, and the use of this catalyst composition for polymerizing olefins or acetylenes.

    摘要翻译: 本发明涉及烯烃聚合催化剂组合物领域,以及烯烃聚合和共聚方法,包括使用催化剂组合物的聚合方法。 本发明的一个方面是形成和使用包含苯氧基取代的半夹心金属茂和用于烯烃聚合方法的活化剂的催化剂组合物。 例如,本发明包括制备(η5 -C 5 H 5 H 5)Ti(OSnPh 3 N) )Cl 2,其与活化剂例如浸渍锌的氧化铝接触以形成催化剂组合物,以及使用该催化剂组合物来聚合烯烃或乙炔。

    Polymers Having Broad Molecular Weight Distributions and Methods of Making the Same
    35.
    发明申请
    Polymers Having Broad Molecular Weight Distributions and Methods of Making the Same 有权
    具有广泛分子量分布的聚合物及其制备方法

    公开(公告)号:US20080051545A1

    公开(公告)日:2008-02-28

    申请号:US11929448

    申请日:2007-10-30

    IPC分类号: C08F10/14

    摘要: Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Using the cocatalyst in conjunction with the catalyst increases several properties, such as the high load melt index (HLMI), the MW, and the MN, of the polymers produced by this polymerization method. Polymer compositions produced by such methods have various unique properties, including a PDI greater than about 30. Additional embodiments include articles of manufacture or end use articles formed from such polymer compositions.

    摘要翻译: 聚合至少一种烯烃的方法包括使烯烃与包含铬的催化剂和包含非过渡金属环戊二烯基(Cp)化合物的助催化剂接触。 聚合可以在氢的存在下进行。 与催化剂一起使用助催化剂增加了几种性质,例如所生产的聚合物的高负载熔体指数(HLMI),M W W N N N N N N N N 通过该聚合方法。 通过这种方法制备的聚合物组合物具有各种独特的性质,包括大于约30的PDI。另外的实施方案包括由这种聚合物组合物形成的制品或最终用途制品。

    Polymerization catalyst systems and processes using alkyl lithium compounds as a cocatalyst
    37.
    发明申请
    Polymerization catalyst systems and processes using alkyl lithium compounds as a cocatalyst 审中-公开
    使用烷基锂化合物作为助催化剂的聚合催化剂体系和方法

    公开(公告)号:US20050090629A1

    公开(公告)日:2005-04-28

    申请号:US10989150

    申请日:2004-11-15

    摘要: A catalyst system composition comprising a chromium compound supported on a silica-titania support, wherein said catalyst system has been reduced with carbon monoxide, and a cocatalyst selected from the group consisting of i) alkyl lithium compounds, ii) dialkyl aluminum alkoxides in combination with at least one metal alkyl selected from the group consisting of alkyl zinc compounds, alkyl aluminum compounds, alkyl boron compounds, and mixtures thereof and iii) mixtures thereof can be used to polymerize olefins to produce a low density polymer with a decreased melt index and/or high load melt index. This catalyst system also can be used with a Ziegler-Natta catalyst system to polymerize olefins. Polymerization processes using these catalyst system compositions are also provided. Polymers resulting from polymerization processes using the inventive catalyst and cocatalyst systems have a decreased high load melt index, decreased melt index, increased fluff bulk density, and are useful as components to make bi-modal molecular weight resins for film and/or blow molding applications.

    摘要翻译: 一种催化剂体系组合物,其包含负载在二氧化硅 - 二氧化钛载体上的铬化合物,其中所述催化剂体系已用一氧化碳还原,并且选择由以下组成的组的助催化剂:i)烷基锂化合物,ii)二烷基铝醇盐与 选自烷基锌化合物,烷基铝化合物,烷基硼化合物及其混合物中的至少一种金属烷基酯和iii)其混合物可用于聚合烯烃以产生具有降低的熔体指数的低密度聚合物和/ 或高负荷熔体指数。 该催化剂体系也可与齐格勒 - 纳塔催化剂体系一起使用以聚合烯烃。 还提供了使用这些催化剂体系组合物的聚合方法。 由使用本发明的催化剂和助催化剂体系的聚合方法产生的聚合物具有降低的高负荷熔体指数,降低的熔体指数,增加的绒毛堆积密度,并且可用作制备用于膜和/或吹塑应用的双模态分子量树脂的组分 。

    Olefin polymerization catalyst and polymerization process
    38.
    发明授权
    Olefin polymerization catalyst and polymerization process 失效
    烯烃聚合催化剂和聚合方法

    公开(公告)号:US5276114A

    公开(公告)日:1994-01-04

    申请号:US49482

    申请日:1993-04-19

    IPC分类号: C08F4/653 C08F10/00 C08F4/70

    CPC分类号: C08F10/00

    摘要: A method for making polymerization catalysts is disclosed which comprises contacting a soluble complex prepared from the combination of a metal dihalide and a transition metal compound with a particulate material comprising zirconium phosphate and then reacting the resulting mixture with an organoaluminum halide to produce a catalyst precursor. The catalyst precursor is then contacted with a halogen containing compound selected from halides of Groups IVA and VA to produce the catalyst. Novel catalysts prepared in accordance with the invention method, novel polymerization processes therewith and novel polymers having relatively high melt flow rates while retaining good mechanical strength are also disclosed.

    摘要翻译: 公开了一种制备聚合催化剂的方法,其包括将由二卤化金属和过渡金属化合物的组合制备的可溶性络合物与包含磷酸锆的颗粒材料接触,然后使所得混合物与有机铝卤化物反应以产生催化剂前体。 然后将催化剂前体与选自IVA和VA族的卤化物的含卤素化合物接触以产生催化剂。 还公开了根据本发明方法制备的新型催化剂,其新颖的聚合方法和具有较高熔体流动速率同时保持良好机械强度的新型聚合物。