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    Process for feeding a catalyst in a polymerization reactor
    52.
    发明授权
    Process for feeding a catalyst in a polymerization reactor 有权
    在聚合反应器中进料催化剂的方法

    公开(公告)号：US08431658B2

    公开(公告)日：2013-04-30

    申请号：US13142444

    申请日：2009-12-23

    申请人： Pietro Baita ,  Rainer Karer ,  Gerhardus Meier ,  Guido Funk ,  Gabriele Mei

    发明人： Pietro Baita ,  Rainer Karer ,  Gerhardus Meier ,  Guido Funk ,  Gabriele Mei

    IPC分类号： C08F4/44 ,  B01J31/02

    CPC分类号： B01J8/0015 ,  B01J8/1827 ,  B01J2208/00752 ,  B01J2208/00769 ,  C08F10/00 ,  C08F210/16 ,  C08F2/34 ,  C08F210/08 ,  C08F2500/12

    摘要： A process for introducing a catalyst powder based on a titanium compound supported on magnesium halide into a gas-phase olefin polymerization reactor, characterized in that it comprises: (a) storing the catalyst powder under an atmosphere of a liquid C3-C12 alkane; (b) withdrawing from step (a) a measured amount of said catalyst powder by means of a rotary valve; (c) transferring said metered amount of catalyst powder to a catalyst activation section by a continuous pick-up flow of a liquid C3-C12 alkane; (d) contacting the catalyst powder with a liquid phase comprising an organo-aluminum compound and optionally an external donor compound, at a temperature ranging from −20° C. to 60° C.; (e) introducing the activated catalyst powder in one or more gas-phase olefin polymerization reactors, where a gaseous mixture comprising at least one alpha-olefin is subjected to polymerization.

    摘要翻译： 将基于负载在卤化镁上的钛化合物的催化剂粉末引入气相烯烃聚合反应器的方法，其特征在于，其包括：（a）将催化剂粉末在液体C 3 -C 12烷烃的气氛下储存; （b）通过旋转阀从步骤（a）中取出测量量的所述催化剂粉末; （c）通过液体C 3 -C 12烷烃的连续提取流将所述计量的催化剂粉末转移到催化剂活化部分; （d）在-20℃至60℃的温度下使催化剂粉末与包含有机铝化合物和任选的外部供体化合物的液相接触; （e）将活化的催化剂粉末引入一个或多个气相烯烃聚合反应器中，其中包含至少一种α-烯烃的气体混合物进行聚合。

    Process for Feeding a Catalyst in a Polymerization Reactor
    53.
    发明申请
    Process for Feeding a Catalyst in a Polymerization Reactor 有权
    在聚合反应器中加入催化剂的方法

    公开(公告)号：US20110282013A1

    公开(公告)日：2011-11-17

    申请号：US13142444

    申请日：2009-12-23

    申请人： Pietro Baita ,  Rainer Karer ,  Gerhardus Meier ,  Guido Funk ,  Gabriele Mei

    发明人： Pietro Baita ,  Rainer Karer ,  Gerhardus Meier ,  Guido Funk ,  Gabriele Mei

    IPC分类号： C08F4/16

    CPC分类号： B01J8/0015 ,  B01J8/1827 ,  B01J2208/00752 ,  B01J2208/00769 ,  C08F10/00 ,  C08F210/16 ,  C08F2/34 ,  C08F210/08 ,  C08F2500/12

    摘要： A process for introducing a catalyst powder based on a titanium compound supported on magnesium halide into a gas-phase olefin polymerization reactor, characterized in that it comprises: (a) storing the catalyst powder under an atmosphere of a liquid C3-C12 alkane; (b) withdrawing from step (a) a measured amount of said catalyst powder by means of a rotary valve; (c) transferring said metered amount of catalyst powder to a catalyst activation section by a continuous pick-up flow of a liquid C3-C12 alkane; (d) contacting the catalyst powder with a liquid phase comprising an organo-aluminum compound and optionally an external donor compound, at a temperature ranging from −20° C. to 60° C.; (e) introducing the activated catalyst powder in one or more gas-phase olefin polymerization reactors, where a gaseous mixture comprising at least one alpha-olefin is subjected to polymerization.

    摘要翻译： 将基于负载在卤化镁上的钛化合物的催化剂粉末引入气相烯烃聚合反应器的方法，其特征在于，其包括：（a）将催化剂粉末在液体C 3 -C 12烷烃的气氛下储存; （b）通过旋转阀从步骤（a）中取出测量量的所述催化剂粉末; （c）通过液体C 3 -C 12烷烃的连续提取流将所述计量的催化剂粉末转移到催化剂活化部分; （d）在-20℃至60℃的温度下使催化剂粉末与包含有机铝化合物和任选的外部供体化合物的液相接触; （e）将活化的催化剂粉末引入一个或多个气相烯烃聚合反应器中，其中包含至少一种α-烯烃的气体混合物进行聚合。

    Process for preparation of ethylene polymers for blown films
    56.
    发明授权
    Process for preparation of ethylene polymers for blown films 失效
    制备用于吹塑薄膜的乙烯聚合物的方法

    公开(公告)号：US08022124B2

    公开(公告)日：2011-09-20

    申请号：US12223234

    申请日：2007-01-24

    申请人： Wolfgang Rohde ,  Lutz-Gerd Heinicke ,  Rainer Karer ,  Manfred Hecker

    发明人： Wolfgang Rohde ,  Lutz-Gerd Heinicke ,  Rainer Karer ,  Manfred Hecker

    IPC分类号： C08K5/50 ,  C08J9/00

    CPC分类号： C08F10/02 ,  C08F10/00 ,  C08F110/02 ,  C08J5/18 ,  C08J2323/08 ,  C08K5/005 ,  C08F4/025 ,  C08F4/24 ,  C08F2/34 ,  C08L23/04 ,  C08F2500/12 ,  C08F2500/04 ,  C08F2500/26 ,  C08F2500/17

    摘要： Process for preparation of ethylene homopolymers or copolymers, comprising the steps of a) polymerization of ethylene or of ethylene with one or more other 1-olefins in the presence of a chromium catalyst at temperatures of from 20 to 200° C. and at pressures of from 0.1 to 20 MPa, where the chromium catalyst can be prepared via application of one or more chromium compounds to a silicate support and subsequent thermal activation under oxidative conditions at temperatures of from 620 to 900° C.; b) mixing of the polyethylene in the melt in the presence of from 1000 to 2000 ppm of an antioxidant comprising at least one sterically hindered phenol and comprising at least one phosphite in a mixing ratio of from 1:5 to 5:1, with specific energy input of at least 0.17 kWh/kg.

    摘要翻译： 乙烯均聚物或共聚物的制备方法，包括以下步骤：a）在铬催化剂存在下，在20〜200℃的温度下，在乙烯或乙烯与一种或多种其它1-烯烃的存在下，在 0.1至20MPa，其中可通过将一种或多种铬化合物施用于硅酸盐载体并随后在620-900℃的氧化条件下进行热活化来制备铬催化剂; b）在1000-2000ppm的包含至少一种空间位阻酚并且包含至少一种1:5至5:1的混合比的亚磷酸酯的抗氧化剂存在下，将聚乙烯混合在熔体中， 能量输入至少为0.17 kWh / kg。

    Monomodal Copolymer of Ethylene for Injection Molding and Process for its Preparation
    57.
    发明申请
    Monomodal Copolymer of Ethylene for Injection Molding and Process for its Preparation 审中-公开
    用于注射成型的乙烯单共聚物及其制备方法

    公开(公告)号：US20100144988A1

    公开(公告)日：2010-06-10

    申请号：US12449082

    申请日：2008-01-15

    申请人： Klaus Foettinger ,  Manfred Hecker ,  Lothar Berger ,  Rainer Karer ,  Dieter Lilge

    发明人： Klaus Foettinger ,  Manfred Hecker ,  Lothar Berger ,  Rainer Karer ,  Dieter Lilge

    IPC分类号： C08F210/02 ,  C08F4/22

    CPC分类号： C08F210/16 ,  C08F2/34 ,  C08F4/24 ,  C08F10/14 ,  C08F2500/12 ,  C08F2500/04 ,  C08F2500/11

    摘要： Monomodal copolymers of ethylene and molding compositions comprising such copolymers, wherein the copolymers have a density determined according to DIN EN ISO 1183-1, variant A in the range from 0.938 to 0.944 g/cm3, a melt index MFR21 determined according to ISO 1133 at 190° C. under a load of 21.6 kg in the range from 12 to 17 g/10 min, a weight average molar mass Mw, in the range from 140 000 g/mol to 330 000 g/mol, a polydispersity Mw/Mn in the range from 9 to 17, and a content of comonomer side chains per 1000 carbon atoms C x equal to or above a value defined via equation (I) Cx=128.7−134.62×d′, wherein d′ is the numerical value of the density of the copolymer in g/cm3, the use of the copolymers for producing injection-molded articles, as well as injection-molded articles comprising the copolymers, and process for the preparation of such monomodal copolymers.

    摘要翻译： 乙烯的单共聚物和包含这种共聚物的模塑组合物，其中共聚物具有根据DIN EN ISO 1183-1，变体A在0.938至0.944g / cm 3范围内测定的密度，根据ISO 1133测定的熔体指数MFR 21 190℃，21.6kg，12-17g / 10min范围内的重均摩尔质量Mw，140,000g / mol〜330000g / mol，多分散性Mw / Mn 在9至17的范围内，每1000个碳原子的共聚单体侧链的含量C x等于或高于通过式（I）定义的值Cx = 128.7-134.62×d'，其中d'是 共聚物的密度（g / cm 3），用于制备注射成型制品的共聚物的使用，以及包含共聚物的注模制品以及制备这种单峰共聚物的方法。

    Multimodal polyethylene composition, mixed catalyst and process for preparing the composition
    59.
    发明申请
    Multimodal polyethylene composition, mixed catalyst and process for preparing the composition 有权
    多峰聚乙烯组合物，混合催化剂及其制备方法

    公开(公告)号：US20090306299A1

    公开(公告)日：2009-12-10

    申请号：US12448449

    申请日：2007-12-18

    申请人： Jennifer Kipke ,  Shahram Mihan ,  Rainer Karer ,  Harald Schmitz

    发明人： Jennifer Kipke ,  Shahram Mihan ,  Rainer Karer ,  Harald Schmitz

    IPC分类号： C08L23/06 ,  C08F2/00 ,  B01J31/12

    CPC分类号： B01J31/12 ,  C08F2/34 ,  C08F4/65912 ,  C08F10/00 ,  C08F10/02 ,  C08F210/16 ,  C08F2410/04 ,  C08J5/18 ,  C08J2323/04 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2205/03 ,  C08L2314/06 ,  Y02P20/52 ,  C08F4/65925 ,  C08F4/65916 ,  C08L23/00 ,  C08L2666/06 ,  C08F210/14 ,  C08F2500/07 ,  C08F2500/08 ,  C08F2500/04 ,  C08F2500/26 ,  C08F4/7042 ,  C08F4/61904

    摘要： A multimodal polyethylene composition, in particular suitable for the preparation of films, but also textile articles, blow molded articles and injection molded articles is described. The polyethylene composition of the invention comprises at least three ethylene polymer fractions having distinct molecular weights or comonomer contents, said at least three ethylene polymer fractions comprising at least one first ethylene polymer fraction having a first molecular weight, a first comonomer content lower than a predetermined value and a first density; at least one second ethylene polymer fraction having a second molecular weight higher than said first molecular weight, a second comonomer content higher than said first comonomer content, and a second density; and at least one third ethylene polymer fraction having a third molecular weight higher than said first molecular weight, a third comonomer content lower than a predetermined value, and a third density; wherein said at least one first ethylene polymer fraction and said at least third ethylene polymer fraction are prepared by the use of a first and, respectively, third catalyst and said at least one second ethylene polymer fraction is prepared by the use of a second catalyst of the single site type. The films prepared from the composition of the invention have improved water vapor barrier properties. Furthermore, a mixed catalyst system comprising at least three catalyst components and a process particularly suitable to prepare the composition of the invention are described.

    摘要翻译： 描述了特别适用于制备薄膜的多峰聚乙烯组合物，但也描述了纺织品，吹塑制品和注塑制品。 本发明的聚乙烯组合物包含至少三种具有不同分子量或共聚单体含量的乙烯聚合物级分，所述至少三种乙烯聚合物级分包含至少一种具有第一分子量的第一乙烯聚合物级分，第一共聚单体含量低于预定的 价值和第一密度; 至少一个具有高于所述第一分子量的第二分子量的第二乙烯聚合物级分，高于所述第一共聚单体含量的第二共聚单体含量和第二密度; 和至少一种具有高于所述第一分子量的第三分子量的第三乙烯聚合物级分，低于预定值的第三共聚单体含量和第三密度; 其中所述至少一种第一乙烯聚合物部分和所述至少三乙烯聚合物部分是通过使用第一和第三催化剂制备的，所述至少一种第二乙烯聚合物部分是通过使用第二催化剂 单一站点类型。 由本发明的组合物制备的膜具有改善的水蒸气阻隔性能。 此外，描述了包含至少三种催化剂组分和特别适于制备本发明组合物的方法的混合催化剂体系。

    Method of Changing Between Incompatible Polymerization Catalysts in a Gas-Phase Fluidized-Bed Reactor
    60.
    发明申请
    Method of Changing Between Incompatible Polymerization Catalysts in a Gas-Phase Fluidized-Bed Reactor 有权
    在气相流化床反应器中改变不相容的聚合催化剂的方法

    公开(公告)号：US20090062486A1

    公开(公告)日：2009-03-05

    申请号：US12085079

    申请日：2006-11-10

    申请人： Shahram Mihan ,  Rainer Karer

    发明人： Shahram Mihan ,  Rainer Karer

    IPC分类号： C08F2/00

    CPC分类号： C08F10/00 ,  C08F210/16 ,  Y10S526/901 ,  C08F2/34 ,  C08F2/42 ,  C08F4/24 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/18 ,  C08F210/14

    摘要： Method of changing from a polymerization using a first catalyst to a polymerization using a second catalyst which is incompatible with the first catalyst in a gas-phase reactor, which comprises the steps a) stopping of the polymerization reaction using the first catalyst, b) flushing of the reactor under polymerization conditions with at least one deactivating agent comprising a volatile constituent and a nonvolatile constituent in a weight ratio of from 0.1 to 1000, c) introduction of the second catalyst into the reactor and d) continuation of the polymerization using the second catalyst.

    摘要翻译： 在使用第一催化剂的聚合中使用在气相反应器中与第一催化剂不相容的第二催化剂进行聚合的方法，其包括以下步骤：a）使用第一催化剂停止聚合反应，b）冲洗 的反应器在至少一种包含挥发性组分和非挥发性组分的去活化剂的重量比为0.1至1000的反应器中，c）将第二催化剂引入反应器中，d）使用第二种方法继续聚合 催化剂。