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    Polymerisation process
    1.
    发明授权
    Polymerisation process 有权
    聚合过程

    公开(公告)号：US06187878B1

    公开(公告)日：2001-02-13

    申请号：US09471419

    申请日：1999-12-23

    申请人： Claudine Viviane Lalanne-Magne ,  Erick Dominique Daire ,  Bruno Patrice Soulier ,  Jean-Pierre Isnard

    发明人： Claudine Viviane Lalanne-Magne ,  Erick Dominique Daire ,  Bruno Patrice Soulier ,  Jean-Pierre Isnard

    IPC分类号： C08F234

    CPC分类号： C08F10/00 ,  Y10S526/901 ,  C08F2/34

    摘要： A continuous gas fluidized bed process for the polymerization of olefin monomer(s) wherein the recycled gaseous stream withdrawn from the reactor is divided into two streams (A and B) and that (a) a first stream (A) having been cooled to a temperature at which liquid condenses out is then reintroduced directly into the fluidized bed in the reactor in such a way that, at any time, the condensed liquid is continuously introduced into the bed at a minimum rate of 10 liters of liquid per cubic meter of fluidized bed material per hour, and (b) a second stream (B), which by-passes the above cooling/condensing step, is passed through an exchanger and is then reintroduced into the reactor. The continuous introduction of a liquid into the reactor reduces or even eliminates fouling problems which can be encountered in conventional gas phase olefin polymerization processes.

    摘要翻译： 用于烯烃单体聚合的连续气体流化床方法，其中从反应器中排出的循环气流被分成两股流（A和B），和（a）已冷却至 液体冷凝出的温度然后直接重新引入反应器中的流化床，使得在任何时候，冷凝的液体以每立方米流化床10升液体的最小速率连续引入床中 每小时的床料，和（b）通过上述冷却/冷凝步骤的第二料流（B）通过交换器，然后再被引入反应器。 将液体连续引入反应器减少或甚至消除了在常规气相烯烃聚合方法中可能遇到的结垢问题。

    PROCESS FOR START-UP OF A POLYMERISATION REACTION FLUIDISED BED
    4.
    发明申请
    PROCESS FOR START-UP OF A POLYMERISATION REACTION FLUIDISED BED 审中-公开
    聚合反应流化床启动方法

    公开(公告)号：US20110160414A1

    公开(公告)日：2011-06-30

    申请号：US12737880

    申请日：2009-09-21

    申请人： Andreas Harald Gondorf ,  Jose Andre Laille ,  Claudine Viviane Lalanne-Magne

    发明人： Andreas Harald Gondorf ,  Jose Andre Laille ,  Claudine Viviane Lalanne-Magne

    IPC分类号： C08F2/34 ,  C08F210/14 ,  C08F4/42

    CPC分类号： C08F2/34 ,  B01J8/1809 ,  B01J2208/00646 ,  B01J2208/00716 ,  C08F210/16 ,  C08F2400/02 ,  C08F210/14

    摘要： The present invention relates to a process for polymerisation, and, in particular, to a process for start-up of a gas phase fluidised bed polymerisation reaction, said reaction comprising polymerisation of one or more monomers using a catalyst in a reactor, and said process comprising: a) providing a start-up bed of particles in the reactor in the presence of the one or more monomers but in the absence of the catalyst, b) introducing catalyst to the reactor to initiate reaction and start-up polymer production, said introduction being designated as time T0, c) at a time Ti, Ti being between 1 and 6 hours after T0, the value of Xi is less than a threshold value, wherein: Xi=Cumulative production in the time period T0 to Ti (Cumulative catalyst injection the time period T0 to Ti*PiC2=), PiC2= being the ethylene partial pressure in the reactor at the time Ti, d) subsequently stopping the injection of catalyst, e) taking a corrective action to address the low value of Xi.

    摘要翻译： 本发明涉及一种聚合方法，特别涉及一种启动气相流化床聚合反应的方法，所述反应包括在反应器中使用催化剂聚合一种或多种单体，所述方法 包括：a）在所述一种或多种单体的存在下，但在不存在所述催化剂的情况下，在所述反应器中提供颗粒起始床，b）将催化剂引入所述​​反应器以引发反应和启动聚合物的生产，所述 引用被指定为时间T0，c）在时间Ti，Ti在T0之后1至6小时之间，Xi的值小于阈值，其中：Xi =时间段T0到Ti的累计产生（累积 催化剂注入时间T0到Ti * PiC2 =），PiC2 =时间Ti时反应器中的乙烯分压，d）随后停止催化剂的注入，e）采取纠正措施来解决Xi的低值 。

    COPOLYMERS AND FILMS THEREOF
    7.
    发明申请
    COPOLYMERS AND FILMS THEREOF 审中-公开
    共聚物及其薄膜

    公开(公告)号：US20110177313A1

    公开(公告)日：2011-07-21

    申请号：US12998254

    申请日：2009-10-09

    申请人： Choon Kooi Chai ,  Claudine Viviane Lalanne-Magne ,  Eric Osmont

    发明人： Choon Kooi Chai ,  Claudine Viviane Lalanne-Magne ,  Eric Osmont

    IPC分类号： B32B3/00 ,  C08F210/14 ,  C08F4/6592 ,  C08F2/34

    CPC分类号： C08F210/16 ,  B29C48/0018 ,  B29C48/022 ,  B29C48/10 ,  B29K2105/256 ,  C08F4/65908 ,  C08F4/65916 ,  C08J5/18 ,  C08J2323/08 ,  C08F4/6592 ,  C08F210/14 ,  C08F2500/08 ,  C08F2500/12 ,  C08F2500/11 ,  C08F2500/26

    摘要： Copolymers of ethylene and α-olefins having C7—C12 carbon atoms having: (a) a density (D) in the range 0.900-0.940 g/cm3, (b) a melt index MI2 (2.16 kg, 190° C.) in the range of 0.01-50 g/10 min, (c) a melt elastic modulus G′ (G″=500 Pa) in the range 20 to 150 Pa, and (d) a tear strength (MD) of ≧220 g, a tear strength (TD) of ≧470 g, and a Dart Drop Impact (DDI) of ≧1800 g of a blown film having a thickness of 25 μm produced from the copolymer; where MD is referred to the machine direction and TD is the transverse direction of the blown film are suitably prepared in the gas phase by use of a supported metallocene catalyst system. Particularly suitable are copolymers of ethylene and 1-octene and the resultant blown films show improved processability and exhibit an improved balance of film properties of dart impact and tear strength.

    摘要翻译： 乙烯和具有C7-C12碳原子的α-烯烃的共聚物具有：（a）密度（D）在0.900-0.940g / cm3范围内，（b）熔体指数MI2（2.16kg，190℃） 0.01-50g / 10分钟的范围，（c）20〜150Pa的熔体弹性模量G'（G“= 500Pa），（d）≥220g的撕裂强度（MD） 撕裂强度（TD）≥470g，由共聚物制成的厚度为25μm的吹塑薄膜的Dart Drop Impact（DDI）为1800g; 其中MD被称为机器方向，TD是吹塑薄膜的横向方向通过使用负载的茂金属催化剂体系在气相中适当地制备。 特别合适的是乙烯和1-辛烯的共聚物，所得到的吹塑薄膜显示出改善的加工性能，并且显示飞镖冲击和撕裂强度的薄膜性能的改善平衡。

    POLYMERISATION PROCESS
    8.
    发明申请
    POLYMERISATION PROCESS 审中-公开
    聚合过程

    公开(公告)号：US20110009576A1

    公开(公告)日：2011-01-13

    申请号：US12736148

    申请日：2009-02-24

    申请人： Jean-Louis Chamayou ,  Claudine Viviane Lalanne-Magne ,  Melanie Muron

    发明人： Jean-Louis Chamayou ,  Claudine Viviane Lalanne-Magne ,  Melanie Muron

    IPC分类号： C08F10/14 ,  C08F4/00

    CPC分类号： C08F210/16 ,  C08F4/6565 ,  C08F4/6495 ,  C08F2/34 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/24 ,  C08F2500/18

    摘要： The present invention relates to a polymerisation process and in particular to a process for the copolymerisation of ethylene and an α-olefin comonomer having 7 to 10 carbon atoms in a fluidised bed gas phase reactor in the presence of a multi-site Ziegler-Natta polymerisation catalyst characterised in that (i) said process is operated in condensed mode, (ii) the amount of said α-olefin is maintained below that at which substantial condensation in the reactor occurs and (iii) at least one of the following apply:a) the catalyst has an uptake rate of 1-octene of at least 700;b) the polymerisation is performed in the presence of an activity promoter.

    摘要翻译： 本发明涉及一种聚合方法，特别涉及一种在多位点齐格勒 - 纳塔聚合存在下，在流化床气相反应器中共聚乙烯和具有7至10个碳原子的α-烯烃共聚单体的方法 催化剂的特征在于：（i）所述方法以冷凝模式运行，（ii）所述α-烯烃的量保持低于反应器发生基本冷凝的量，以及（iii）以下至少一种适用： ）催化剂具有至少700的1-辛烯的吸收速率; b）聚合在活性促进剂存在下进行。