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41 条记录 (耗时 0.036 秒)

    Method for catalyst preparation and improved polyethylene blow molding resin
    21.
    发明授权
    Method for catalyst preparation and improved polyethylene blow molding resin 失效
    催化剂制备方法和改进的聚乙烯吹塑树脂

    公开(公告)号：US07375169B1

    公开(公告)日：2008-05-20

    申请号：US11657916

    申请日：2007-01-25

    申请人： Edward F. Smith ,  Stanley J. Katzen ,  Anthony N. Speca ,  Thomas W. Towles

    发明人： Edward F. Smith ,  Stanley J. Katzen ,  Anthony N. Speca ,  Thomas W. Towles

    IPC分类号： C08F4/24

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F4/24 ,  C08F2500/12 ,  C08F2500/04 ,  C08F2500/13 ,  C08F2500/14 ,  C08F2500/07 ,  C08F210/14

    摘要： A method for polymerizing ethylene is provided. The method can include preparing a supported catalyst composition comprising the steps of: (a) dehydrating a chromium impregnated support; (b) at least partially dissolving a titanium-containing compound in one or more inert solvents to provide a solution comprising the titanium-containing compound; (c) contacting the dehydrated chromium impregnated support with the titanium-containing solution to provide a mixture comprising the solvent, titanium-containing compound and chromium impregnated support; (d) removing the solvent from the mixture; and (e) activating the product of step (d) at a temperature of at least 800° F. (427° C.) to provide a supported titanated chrome catalyst composition. The supported titanated chrome catalyst composition can be feed to a slurry reactor, and contacted with an optional co-catalyst, under polymerization conditions, with ethylene.

    摘要翻译： 提供聚合乙烯的方法。 该方法可以包括制备负载型催化剂组合物，其包括以下步骤：（a）使浸渍铬的载体脱水; （b）至少部分地将含钛化合物溶解在一种或多种惰性溶剂中以提供包含含钛化合物的溶液; （c）使脱水的铬浸渍的载体与含钛溶液接触以提供包含溶剂，含钛化合物和浸渍铬的载体的混合物; （d）从混合物中除去溶剂; 和（e）在至少800°F（427℃）的温度下活化步骤（d）的产物，以提供负载的钛化铬催化剂组合物。 负载的钛化铬催化剂组合物可以进料到浆料反应器中，并在聚合条件下与乙烯与任选的助催化剂接触。

    Polymerization process
    22.
    发明授权
    Polymerization process 有权
    聚合过程

    公开(公告)号：US06921798B2

    公开(公告)日：2005-07-26

    申请号：US10456283

    申请日：2003-06-06

    申请人： James A. Kendrick ,  Scott T. Roger ,  Stanley J. Katzen ,  Zerong Lin ,  Anthony N. Speca

    发明人： James A. Kendrick ,  Scott T. Roger ,  Stanley J. Katzen ,  Zerong Lin ,  Anthony N. Speca

    IPC分类号： F16L9/12 ,  C08F2/00 ,  C08F4/69 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F2/00 ,  C08F4/69 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/13 ,  C08F210/14 ,  C08F210/08

    摘要： Polymerization processes are disclosed for producing polyethylene having a target density and improved environmental stress resistance. Ethylene and optionally one or more α-olefin comonomers, supported chromium catalyst, and metal alkyl cocatalyst are contacted to produce polyethylene. The density of the polyethylene is determined, and the concentration of cocatalyst is adjusted in response to a deviation between the density of the polyethylene and the target density. The catalyst and cocatalyst can be fed separately into the reactor, or can be co-fed, eliminating the need to pre-contact the catalyst and cocatalyst prior to introducing them into the reactor.

    摘要翻译： 公开了用于生产具有目标密度和改善的耐环境应力的聚乙烯的聚合方法。 乙烯和任选的一种或多种α-烯烃共聚单体，负载的铬催化剂和金属烷基助催化剂接触以制备聚乙烯。 确定聚乙烯的密度，并且响应于聚乙烯的密度和目标密度之间的偏差来调节助催化剂的浓度。 催化剂和助催化剂可以单独进料到反应器中，或者可以共同进料，而不需要在将催化剂和助催化剂引入反应器之前预接触催化剂和助催化剂。

    Support adjuvant for improved vanadium polymerization catalyst
    25.
    发明授权
    Support adjuvant for improved vanadium polymerization catalyst 失效
    用于改进钒聚合催化剂的载体助剂

    公开(公告)号：US5064796A

    公开(公告)日：1991-11-12

    申请号：US639308

    申请日：1991-01-07

    申请人： Anthony N. Speca

    发明人： Anthony N. Speca

    IPC分类号： C08F4/68 ,  C08F10/00

    CPC分类号： C08F10/00

    摘要： A vanadium catalyst component for the polymerization of 1-olefins and a process for making said catalyst component are disclosed. The catalyst component is prepared by fluoriding a support comprising silica. Use of the catalyst component provides a catalyst with increased activity, increased response to hydrogen for chain termination, increased response to comonomer for resin density reduction, and allows the molecular weight distribution of the polymers to be independently controlled by controlling the amount of fluorination and the fluorination temperature.

    摘要翻译： 公开了用于1-烯烃聚合的钒催化剂组分和制备所述催化剂组分的方法。 通过氟化包含二氧化硅的载体来制备催化剂组分。 催化剂组分的使用提供了催化剂具有增加的活性，增加对氢的响应，用于链终止，增加了对共聚单体对树脂密度降低的响应，并且允许通过控制氟化量独立地控制聚合物的分子量分布， 氟化温度。

    Intermetallic compounds of Lewis base bridged transition metal-reducing metal complexes and catalytic use thereof
    27.
    发明授权
    Intermetallic compounds of Lewis base bridged transition metal-reducing metal complexes and catalytic use thereof 失效
    路易斯碱桥联过渡金属还原金属络合物的金属间化合物及其催化用途

    公开(公告)号：US4610974A

    公开(公告)日：1986-09-09

    申请号：US725440

    申请日：1985-04-22

    申请人： Anthony N. Speca

    发明人： Anthony N. Speca

    IPC分类号： C08F4/64 ,  C08F10/00 ,  C08F4/62 ,  C08F4/68

    CPC分类号： C08F10/00 ,  C08F2410/04

    摘要： Lewis base-bridged intermetallic compounds comprising the reaction product of a transition metal alkoxide with a reducing metal having a higher oxidation potential than the transition metal in the presence of a Lewis base and said reaction product being associated by coordinate covalent bridges formed from the Lewis base and composed of donor atoms selected from the group consisting of oxygen, nitrogen, sulfur and phosphorous; and catalyst components and systems for the polymerization of alpha olefins.

    摘要翻译： 路易斯碱桥连金属间化合物，其包含过渡金属醇盐与还原金属在路易斯碱存在下具有比过渡金属更高的氧化电位的反应产物，所述反应产物与由路易斯碱形成的配位共价桥相关联 并由选自氧，氮，硫和磷的供体原子组成; 和用于α-烯烃聚合的催化剂组分和体系。

    Olefin polymerization catalyst
    28.
    发明授权
    Olefin polymerization catalyst 失效
    烯烃聚合催化剂

    公开(公告)号：US4119773A

    公开(公告)日：1978-10-10

    申请号：US808942

    申请日：1977-06-22

    申请人： Anthony N. Speca

    发明人： Anthony N. Speca

    IPC分类号： C08F4/24 ,  C08F10/00 ,  C08F4/02

    CPC分类号： C08F10/00

    摘要： An olefin polymerization catalyst is prepared by depositing the chromium (III) compound obtained from the reaction of a chromium (III) carboxylate with an aluminum alkoxide upon an inorganic support material and calcining the impregnated support material in a non-reducing atmosphere above 300.degree. C, up to the decomposition temperature of the support material to provide an activated catalyst.

    摘要翻译： 通过将由（III）羧酸铬的反应获得的铬（III）化合物与烷氧基铝沉积在无机载体材料上并在300℃以上的非还原气氛中煅烧浸渍的载体材料来制备烯烃聚合催化剂 ，直到支撑材料的分解温度以提供活化的催化剂。

    Catalyst system and process
    29.
    发明授权
    Catalyst system and process 有权
    催化剂系统和工艺

    公开(公告)号：US07632901B2

    公开(公告)日：2009-12-15

    申请号：US10456604

    申请日：2003-06-06

    申请人： Stanley J. Katzen ,  Zerong Lin ,  Anthony N. Speca ,  James A. Kendrick ,  Scott T. Roger

    发明人： Stanley J. Katzen ,  Zerong Lin ,  Anthony N. Speca ,  James A. Kendrick ,  Scott T. Roger

    IPC分类号： C08F4/52 ,  C08F4/58

    CPC分类号： C08F10/00 ,  C08F210/16 ,  C08F210/18 ,  C08F4/69 ,  C08F4/025 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/13 ,  C08F2500/25 ,  C08F236/20

    摘要： Methods of making supported chromium catalyst systems and processes of polymerizing ethylene using the supported chromium catalyst systems are disclosed. A method of forming a catalyst system in a polymerization reactor includes contacting a supported chromium catalyst and a metal alkyl cocatalyst by cofeeding the catalyst and cocatalyst to the reactor or feeding the catalyst and cocatalyst separately to the reactor, to form a catalyst system. The catalyst and cocatalyst are not pre-contacted prior to the feeding or cofeeding step. The catalyst system can be contacted with ethylene and optional alpha-olefin comonomer to form polyethylene.

    摘要翻译： 公开了使用负载的铬催化剂体系制备负载型铬催化剂体系和聚合乙烯的方法。 在聚合反应器中形成催化剂体系的方法包括通过将催化剂和助催化剂共进料到反应器或将催化剂和助催化剂分别供入反应器来使负载的铬催化剂和金属烷基助催化剂接触，形成催化剂体系。 催化剂和助催化剂在进料或共进料步骤之前不预先接触。 催化剂体系可与乙烯和任选的α-烯烃共聚单体接触以形成聚乙烯。

    Olefin polymerization catalysts, production and use
    30.
    发明授权
    Olefin polymerization catalysts, production and use 失效
    烯烃聚合催化剂，生产和使用

    公开(公告)号：US4711865A

    公开(公告)日：1987-12-08

    申请号：US944306

    申请日：1986-12-18

    申请人： Anthony N. Speca

    发明人： Anthony N. Speca

    IPC分类号： C08F4/64 ,  C08F4/60 ,  C08F4/62 ,  C08F10/00 ,  C08F4/68

    CPC分类号： C08F10/00

    摘要： A catalyst for the polymerization of olefins, said catalyst comprising a transition metal containing support catalyst component and an aluminum alkyl cocatalyst, said transition metal containing catalyst component obtained by contacting an inorganic metal oxide with an organomagnesium compound and an alcohol, drying the contact product, treating the dried contact product with an acyl halide, a halogen such as chlorine, a transition metal halide such as titanium tetrachloride, and in the last step treating the titanium-containing component with an organoaluminum compound such as tri-n-hexylaluminum.