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    Process for transitioning between ziegler-natta-based and chromium-based catalysts
    5.
    发明申请
    Process for transitioning between ziegler-natta-based and chromium-based catalysts 有权
    基于齐格勒 - 纳塔和铬基催化剂的转化方法

    公开(公告)号：US20060160965A1

    公开(公告)日：2006-07-20

    申请号：US11312272

    申请日：2005-12-20

    申请人： Mark Goode ,  Kevin Cann ,  F. Hussein ,  Robert Santana ,  David Schutz ,  Agapios Agapiou

    发明人： Mark Goode ,  Kevin Cann ,  F. Hussein ,  Robert Santana ,  David Schutz ,  Agapios Agapiou

    IPC分类号： C08F2/38

    CPC分类号： C08F10/02 ,  C08F210/16 ,  C08F2410/05 ,  Y10S526/901 ,  C08F2/34 ,  C08F2/42 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/18 ,  C08F210/08

    摘要： Embodiments of our invention relate to processes for transitioning among polymerization catalyst systems including processes for transitioning among olefin polymerization reactions using Ziegler-Natta catalysts systems and chromium-based catalyst systems. Among embodiments contemplated are a method of transitioning from a first catalyst to a second catalyst in an olefin polymerization reactor, comprising: adding to the reactor a deactivating agent (DA) selected from one of carbon monoxide, carbon dioxide, or combinations thereof; adding to the reactor a cocatalyst adsorbing agent (CAA), comprising an inorganic oxide selected from one of silica, alumina or combinations thereof; wherein the first catalyst comprises at least one conventional Ziegler-Natta catalyst, and a cocatalyst, wherein the second catalyst comprises at least one chromium-based catalyst, wherein the reactor is a gas-phase, fluidized bed reactor, and wherein the CAA is substantially free of transition metals. In another embodiment a method of transitioning from a first catalyst to a second catalyst in an olefin polymerization reactor is contemplated, comprising: adding a transition aid agent (TAA) wherein the TAA is selected from one of alkoxylated amines, alkoxylated amides, or combinations thereof, wherein the first catalyst comprises at least one Ziegler-Natta catalyst comprising the catalyst, a cocatalyst and optionally a support, and the second catalyst comprises at least one chromium-based catalyst.

    摘要翻译： 本发明的实施方案涉及在聚合催化剂体系中过渡的方法，包括使用齐格勒 - 纳塔催化剂体系和铬基催化剂体系在烯烃聚合反应中过渡的方法。 考虑的实施方案是在烯烃聚合反应器中从第一催化剂转变为第二催化剂的方法，包括：向反应器中加入选自一氧化碳，二氧化碳或其组合中的一种失活剂（DA）; 向所述反应器中加入选自二氧化硅，氧化铝或其组合的无机氧化物的助催化剂吸附剂（CAA）; 其中所述第一催化剂包含至少一种常规齐格勒 - 纳塔催化剂和助催化剂，其中所述第二催化剂包含至少一种铬基催化剂，其中所述反应器是气相流化床反应器，并且其中所述CAA基本上 没有过渡金属。 在另一个实施方案中考虑了在烯烃聚合反应器中从第一催化剂转变为第二催化剂的方法，包括：加入转移助剂（TAA），其中TAA选自烷氧基化胺，烷氧基化酰胺或其组合之一 ，其中所述第一催化剂包含至少一种齐格勒 - 纳塔催化剂，所述催化剂包含所述催化剂，助催化剂和任选的载体，所述第二催化剂包含至少一种铬基催化剂。

    Method for seed bed treatment before a polymerization reaction
    6.
    发明申请
    Method for seed bed treatment before a polymerization reaction 审中-公开
    聚合反应前种子床处理方法

    公开(公告)号：US20070073012A1

    公开(公告)日：2007-03-29

    申请号：US11236998

    申请日：2005-09-28

    申请人： Richard Pannell ,  Agapios Agapiou ,  Eric Markel

    发明人： Richard Pannell ,  Agapios Agapiou ,  Eric Markel

    IPC分类号： C08F2/00

    CPC分类号： C08F10/00 ,  Y02P20/582 ,  C08F2/34 ,  C08F2/005

    摘要： In some embodiments, a method in which at least one continuity additive (“CA”) and a seed bed are pre-loaded into a reactor, and a polymerization reaction is optionally then performed in the reactor. In other embodiments, at least one flow improver, at least one CA, and a seed bed are pre-loaded into a reactor. Pre-loading of a reactor with a CA can significantly improve continuity of a subsequent polymerization reaction in the reactor during its initial stages, including by reducing sheeting and fouling. The CA can be pre-loaded in dry form (e.g., as a powder), or in liquid or slurry form (e.g., as an oil slurry). To aid delivery of a dry CA to the reactor and combination of the dry CA with a seed bed in the reactor, the dry CA can be combined with a flow improver and the combination of CA and flow improver then loaded into the reactor. Alternatively, the CA and flow improver can be sequentially loaded into the reactor, and then mixed together (and mixed with a seed bed) in the reactor after both the CA and flow improver have been separately loaded into the reactor.

    摘要翻译： 在一些实施方案中，将至少一种连续性添加剂（“CA”）和种子床预加载到反应器中的方法，然后任选地在反应器中进行聚合反应。 在其它实施方案中，将至少一种流动改进剂，至少一种CA和种子床预加载到反应器中。 具有CA的反应器的预装载可以显着改善反应器在其初始阶段期间的后续聚合反应的连续性，包括通过减少薄片和结垢。 CA可以预干燥形式（例如，作为粉末），或以液体或浆液形式（例如，作为油浆）预加载。 为了帮助将干燥的CA输送到反应器中，并且干燥的CA与反应器中的种子床的组合，干燥的CA可与流动改进剂组合，然后将CA和流动改进剂的组合装入反应器中。 或者，CA和流动改进剂可以顺序地加载到反应器中，然后在CA和流动改进剂已经分别装载到反应器中之后混合在一起（并与种子床混合）在反应器中。

    Supported polyolefin catalyst components and methods of making and using the same
    7.
    发明授权
    Supported polyolefin catalyst components and methods of making and using the same 失效
    负载型聚烯烃催化剂组分及其制备和使用方法

    公开(公告)号：US4774300A

    公开(公告)日：1988-09-27

    申请号：US788592

    申请日：1985-10-17

    申请人： Agapios Agapiou ,  Felix I. Jacobson ,  John L. H. Allan

    发明人： Agapios Agapiou ,  Felix I. Jacobson ,  John L. H. Allan

    IPC分类号： C08F4/02 ,  C08F10/00 ,  C08F10/06

    CPC分类号： C08F10/00

    摘要： A method of producing a polymerization catalyst component suitable for use in the polymerization of alpha-olefins, which method comprises forming an active component by co-comminuting an inorganic Lewis acid, a first organic electron donor, a support base selected from the group consisting of the Group IIA & IIIA salts and the salts of the multivalent metals of the first transition series with the exception of copper, and a polymerization active tri-, tetra-, or penta- valent transition metal compound of a Group IVB-VIB metal, and heating the active component in an inert hydrocarbon solvent to produce the polymerization catalyst component. The active component can be heated in the inert hydrocarbon solvent in the presence of an additional polymerization active tri-, tetra-, or penta- valent transition metal compound of a group IVB-VIB metal. In addition, a second organic electron donor may be incorporated in the active component.

    摘要翻译： 一种制备适用于α-烯烃聚合的聚合催化剂组分的方法，该方法包括通过共粉碎无机路易斯酸形成活性组分，第一有机电子给体，选自以下的支持碱： 第IIA和IIIA族盐和除了铜之外的第一过渡系列的多价金属的盐以及IVB-VIB族金属的聚合活性三 - ，四 - 或五价过渡金属化合物，以及 在惰性烃溶剂中加热活性组分以产生聚合催化剂组分。 活性组分可以在IVB-VIB族金属的另外的聚合活性三 - ，四 - 或五价过渡金属化合物的存在下，在惰性烃溶剂中加热。 此外，第二有机电子给体可以并入活性组分中。

    Supported polyolefin catalyst components and methods of making and using the same
    8.
    发明授权
    Supported polyolefin catalyst components and methods of making and using the same 失效
    负载型聚烯烃催化剂组分及其制备和使用方法

    公开(公告)号：US4555496A

    公开(公告)日：1985-11-26

    申请号：US615882

    申请日：1984-05-31

    申请人： Agapios Agapiou ,  John L. H. Allan ,  Felix I. Jacobson

    发明人： Agapios Agapiou ,  John L. H. Allan ,  Felix I. Jacobson

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

    CPC分类号： C08F10/00

    摘要： A method of producing a polymerization catalyst component suitable for use in the polymerization of alpha-olefins, which method comprises forming an active component by co-comminuting an inorganic Lewis acid, a first organic electron donor, a support base selected from the group consisting of the Group IIA and IIIA salts and the salts of the multivalent metals of the first transition series with the exception of copper, and a polymerization active tri-, tetra-, or penta- valent transition metal compound of a Group IVB-VIB metal, and heating the active component in an inert hydrocarbon solvent to produce the polymerization catalyst component. The active component can be heated in the inert hydrocarbon solvent in the presence of an additional polymerization active tri-, tetra-, or penta- valent transition metal compound of a group IVB-VIB metal. In addition, a second organic electron donor may be incorporated in the active component.

    摘要翻译： 一种制备适用于α-烯烃聚合的聚合催化剂组分的方法，该方法包括通过共粉碎无机路易斯酸形成活性组分，第一有机电子给体，选自以下的支持碱： IIA族和IIIA族的盐以及除了铜以外的第一过渡系列的多价金属的盐以及IVB-VIB族金属的聚合活性三 - ，四 - 或五价过渡金属化合物，以及 在惰性烃溶剂中加热活性组分以产生聚合催化剂组分。 活性组分可以在IVB-VIB族金属的另外的聚合活性三 - ，四 - 或五价过渡金属化合物的存在下，在惰性烃溶剂中加热。 此外，第二有机电子给体可以并入活性组分中。

    Supported metallocene-alkyl catalyst composition
    9.
    发明申请
    Supported metallocene-alkyl catalyst composition 有权
    负载的茂金属 - 烷基催化剂组合物

    公开(公告)号：US20070027027A1

    公开(公告)日：2007-02-01

    申请号：US11192935

    申请日：2005-07-29

    申请人： Agapios Agapiou ,  Phuong Cao ,  Sun-Chueh Kao

    发明人： Agapios Agapiou ,  Phuong Cao ,  Sun-Chueh Kao

    IPC分类号： B01J31/00 ,  C08F4/44

    CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65925 ,  Y02P20/582 ,  Y10S526/941 ,  Y10S526/943 ,  C08F4/65916

    摘要： A supported catalyst composition having improved flow properties is disclosed comprising an alkylalumoxane, a metallocene-alkyl an inorganic oxide support having an average particle size of from 0.1 to 50 μm and calcined at a temperature greater than 600° C., and optionally an antifoulant agent and. In one embodiment, the metallocene-alkyl is a Group 4, 5 or 6 metallocene-alkyl, and in another embodiment is a hafnocene-alkyl. Also disclosed is a method of polymerization using such a supported catalyst composition.

    摘要翻译： 公开了具有改进的流动性质的负载型催化剂组合物，其包含烷基铝氧烷，茂金属 - 烷基和平均粒度为0.1-50μm的无机氧化物载体，并且在大于600℃的温度下煅烧，以及任选的防污剂 和。 在一个实施方案中，茂金属 - 烷基是第4,5或6族茂金属 - 烷基，在另一个实施方案中是茂金属 - 烷基。 还公开了使用这种负载型催化剂组合物的聚合方法。