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    Method of maintaining heat transfer capacity in a polymerization reaction system
    12.
    发明授权
    Method of maintaining heat transfer capacity in a polymerization reaction system 有权
    保持聚合反应体系中传热能力的方法

    公开(公告)号：US07790816B2

    公开(公告)日：2010-09-07

    申请号：US11879673

    申请日：2007-07-18

    申请人： Eric J. Markel ,  Agapios K. Agapiou

    发明人： Eric J. Markel ,  Agapios K. Agapiou

    IPC分类号： C08F2/00 ,  C08F2/34 ,  B01J19/00

    CPC分类号： C08F10/00 ,  C08F2400/02 ,  Y10S526/901 ,  C08F2/00 ,  C08F2/005

    摘要： This invention relates to a process for maintaining heat transfer capacity of a cycle cooler while polymerizing olefin(s) in the presence of catalyst and a carboxylate metal salt by controlling the amount of carboxylate metal salt present in the reaction system. In particular, the invention relates to maintaining a cycle cooler performance parameter substantially constant while polymerizing olefin(s) in the presence of a carboxylate metal salt and a conventional-type transition metal polymerization catalyst compound, or a metallocene-type polymerization catalyst compound. This invention further relates to a process wherein the cycle cooler performance parameter is a heat transfer capacity of the cycle cooler, a pressure drop across the cooler, or a cooler approach temperature of a cycle cooler.

    摘要翻译： 本发明涉及通过控制反应体系中存在的羧酸金属盐的量，在催化剂和羧酸盐金属盐的存在下聚合烯烃时，保持循环冷却器的传热能力的方法。 特别地，本发明涉及在羧酸金属盐和常规型过渡金属聚合催化剂化合物或茂金属型聚合催化剂化合物的存在下聚合烯烃时，保持循环冷却器性能参数基本恒定。 本发明还涉及一种方法，其中循环冷却器性能参数是循环冷却器的传热能力，冷却器上的压降或循环冷却器的冷却器接近温度。

    Methods for on-line determination of degree of resin stickiness using a model for depression of melt initiation temperature
    13.
    发明申请
    Methods for on-line determination of degree of resin stickiness using a model for depression of melt initiation temperature 有权
    使用熔融起始温度抑制模型在线测定树脂粘性度的方法

    公开(公告)号：US20080065360A1

    公开(公告)日：2008-03-13

    申请号：US11827684

    申请日：2007-07-13

    申请人： Richard B. Pannell ,  Robert O. Hagerty ,  Eric J. Markel

    发明人： Richard B. Pannell ,  Robert O. Hagerty ,  Eric J. Markel

    IPC分类号： G06F17/10 ,  C08F2/38

    CPC分类号： C08F10/00 ,  C08F210/16 ,  C08F2400/02 ,  C08F2/00 ,  C08F2/34 ,  C08F210/08 ,  C08F210/14

    摘要： In some embodiments, a method including the steps of: during a polymerization reaction producing a polymer resin in a fluid bed reactor, measuring reaction parameters including at least reactor temperature, at least one property of the resin, and amount of at least one condensable diluent gas in the reactor; determining from at least one measured resin property using a predetermined correlation, a dry melt initiation temperature value for a dry version of the polymer resin; and during the reaction, using a melt initiation temperature depression model to determine in on-line fashion a reduced melt initiation temperature for the resin (e.g., a temperature at which the resin is expected to begin to melt) in the presence of the at least one condensable diluent gas in the reactor.

    摘要翻译： 在一些实施方案中，一种方法包括以下步骤：在聚合反应期间在流化床反应器中制备聚合物树脂，测量反应参数至少包括反应器温度，树脂的至少一种性质和至少一种可冷凝稀释剂 反应堆中的气体; 使用预定的相关性从至少一种测量的树脂性质确定干燥型聚合物树脂的干熔体起始温度值; 并且在反应期间，使用熔体起始温度下降模型以在线方式确定在至少存在下存在的树脂的降低的熔融起始温度（例如，树脂预期开始熔化的温度） 一个可冷凝的稀释气体在反应器中。

    Branched semi-crystalline high-C3 ethylene-propylene polymer compositions
    14.
    发明授权
    Branched semi-crystalline high-C3 ethylene-propylene polymer compositions 有权
    支链半结晶高C3乙烯 - 丙烯聚合物组合物

    公开(公告)号：US06569965B2

    公开(公告)日：2003-05-27

    申请号：US10278666

    申请日：2002-10-23

    申请人： Eric J. Markel ,  Weiqing Weng ,  Armenag H. Dekmezian

    发明人： Eric J. Markel ,  Weiqing Weng ,  Armenag H. Dekmezian

    IPC分类号： C08F464

    CPC分类号： C08F210/16 ,  C08F4/65904 ,  C08F4/65908 ,  C08F4/65912 ,  C08F10/06 ,  C08F210/06 ,  Y10S526/943 ,  C08F4/65927 ,  C08F2500/03 ,  C08F2500/09

    摘要： Branched ethylene-propylene compositions which have improved melt strength and shear thinning are provided. The weight average branching index g′ for the higher molecular weight region of the ethylene-propylene composition is less than 0.95. Additionally, a novel process is provided for efficiently producing a branched ethylene-propylene composition comprising: a) contacting propylene monomers and ethylene monomers in a reactor with an inert hydrocarbon solvent or diluent and a catalyst composition comprising one or more single site catalyst compounds capable of producing an ethylene-propylene polymer at a temperature from about 50° C. to about 180° C., wherein the ratio in the reactor of the propylene and ethylene monomers to the inert hydrocarbon solvent or diluent is less than 2.0, and further, wherein the propylene and ethylene monomers and the inert hydrocarbon solvent or diluent comprise no more than 90 percent of the total contents of the reactor; and b) recovering a branched ethylene-propylene composition, wherein the weight average branching index g′ for the higher molecular weight region of the ethylene-propylene composition is less than 0.95.

    摘要翻译： 提供了具有改善的熔体强度和剪切稀化的分支乙烯 - 丙烯组合物。 乙烯 - 丙烯组合物的较高分子量区域的重均分支指数g'小于0.95。 另外，提供了一种有效生产支化乙烯 - 丙烯组合物的新方法，其包括：a）使反应器中的丙烯单体和乙烯单体与惰性烃溶剂或稀释剂和包含一种或多种单中心催化剂化合物的催化剂组合物接触， 在约50℃至约180℃的温度下生产乙烯 - 丙烯聚合物，其中丙烯和乙烯单体的反应器与惰性烃溶剂或稀释剂的比例小于2.0，此外，其中 丙烯和乙烯单体和惰性烃溶剂或稀释剂不超过反应器总含量的90％; 和b）回收支链乙烯 - 丙烯组合物，其中乙烯 - 丙烯组合物的较高分子量区域的重均分支指数g'小于0.95。

    Propylene polymers incorporating macromers
    16.
    发明授权
    Propylene polymers incorporating macromers 失效
    掺入大分子单体的丙烯聚合物

    公开(公告)号：US06197910B1

    公开(公告)日：2001-03-06

    申请号：US09020306

    申请日：1998-02-06

    申请人： Weiqing Weng ,  Armen Dekmezian ,  Eric J. Markel ,  Avinash Gadkari ,  David L. Peters

    发明人： Weiqing Weng ,  Armen Dekmezian ,  Eric J. Markel ,  Avinash Gadkari ,  David L. Peters

    IPC分类号： C08F11006

    CPC分类号： C08L51/06 ,  C08F4/65912 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  C08F255/00 ,  C08F255/02 ,  C08F290/042 ,  C08F297/08 ,  C08F297/083 ,  Y10S526/943 ,  C08F4/65927 ,  C08F2500/15 ,  C08F2500/03 ,  C08F2500/06 ,  C08F2500/09

    摘要： A polyolefin composition is provided which consists essentially of isotactic polypropylene and, optionally, repeating units of one or more comonomers, wherein the total comonomer repeating unit content of the polyolefin composition is from 0 to 20 mole percent, and further, wherein the weight average branching index g′ for the lower molecular weight region of the polyolefin composition is less than 0.93. Additionally, a process is provided for producing a polyolefin composition comprising: a) contacting, in solution, at a temperature from about 90° C. to about 120° C., propylene monomers with a catalyst composition comprising a first chiral, stereorigid transition metal catalyst compound capable of producing isotactic polypropylene; b) copolymerizing the product of a) with propylene and, optionally, one or more copolymerizable monomers, in a polymerization reactor under suitable polypropylene polymerization conditions using a second chiral, stereorigid transition metal catalyst capable of producing isotactic polypropylene; and c) recovering a branched olefin polymer.

    摘要翻译： 提供了聚烯烃组合物，其基本上由全同立构聚丙烯和任选的一种或多种共聚单体的重复单元组成，其中聚烯烃组合物的总共聚单体重复单元含量为0至20摩尔％，此外，其中重均分子量 聚烯烃组合物的较低分子量区域的指数g'小于0.93。 此外，提供了一种用于制备聚烯烃组合物的方法，其包括：a）在约90℃至约120℃的温度下在溶液中使丙烯单体与催化剂组合物接触，所述催化剂组合物包含第一手性立体刚性过渡金属 能够产生全同立构聚丙烯的催化剂化合物; b）在合适的聚丙烯聚合条件下，使用能够产生全同立构的第二手性立体刚性过渡金属催化剂，在聚合反应器中将a）的产物与丙烯和任选的一种或多种可共聚的单体共聚 聚丙烯; 和c）回收支链烯烃聚合物。

    Systems and Methods for Measuring Particle Accumulation on Reactor Surfaces
    19.
    发明申请
    Systems and Methods for Measuring Particle Accumulation on Reactor Surfaces 审中-公开
    用于测量反应堆表面上的颗粒积累的系统和方法

    公开(公告)号：US20130115708A1

    公开(公告)日：2013-05-09

    申请号：US13809940

    申请日：2011-07-08

    申请人： Eric J. Markel

    发明人： Eric J. Markel

    IPC分类号： G01N27/26

    CPC分类号： B01J8/1809 ,  B01J8/388 ,  B01J2219/0018 ,  B01J2219/00198 ,  B01J2219/00213 ,  B01J2219/00231 ,  B01J2219/00247 ,  B01J2219/00268 ,  B01J2219/0245 ,  C08F2/00 ,  C08F10/00 ,  C08F210/14 ,  C08F210/16 ,  C08F2400/02 ,  C08F2500/24

    摘要： Systems and methods for monitoring a particle/fluid mixture are provided. The method can include flowing a mixture comprising charged particles and a fluid past a particle accumulation probe. The method can also include measuring electrical signals detected by the probe as some charged particles pass the probe without contacting the probe while other charged particles contact the probe. The measured electrical signals can be manipulated to provide an output. The method can also include determining from the output if the charged particles contacting the probe have, on average, a different charge than the charged particles that pass the probe without contacting the probe.

    摘要翻译： 提供了用于监测颗粒/流体混合物的系统和方法。 该方法可以包括使包含带电粒子和流体的混合物流过粒子聚集探针。 该方法还可以包括测量由探针检测的电信号，因为一些带电粒子通过探针而不接触探针，而其他带电粒子接触探针。 可以操作所测量的电信号以提供输出。 该方法还可以包括从输出确定接触探针的带电粒子是否平均具有与通过探针而不接触探针的带电粒子不同的电荷。

    Methods for determining temperature value indicative of resin stickiness from data generated by polymerization reaction monitoring
    20.
    发明授权
    Methods for determining temperature value indicative of resin stickiness from data generated by polymerization reaction monitoring 有权
    用于通过聚合反应监测产生的数据确定指示树脂粘性的温度值的方法

    公开(公告)号：US08273834B2

    公开(公告)日：2012-09-25

    申请号：US12310723

    申请日：2007-08-09

    申请人： Eric J. Markel ,  Robert O. Hagerty ,  Richard B. Pannell

    发明人： Eric J. Markel ,  Robert O. Hagerty ,  Richard B. Pannell

    IPC分类号： C08F2/00 ,  C08F10/14 ,  C08F110/14 ,  C08F210/14

    CPC分类号： C08F10/00 ,  C08F210/16 ,  C08F2400/02 ,  C08F2/34 ,  C08F2/00 ,  C08F210/08 ,  C08F210/14 ,  C08F2500/20

    摘要： In some embodiments, a method including the steps of monitoring a polymerization reaction which produces a polymer resin in a fluid bed reactor, where a dry melt reference temperature is characteristic of melting behavior of a dry version of the resin, and in response to data indicative of at least one monitored parameter of the reaction, determining in on-line fashion a reduced melt reference temperature that is at least substantially equal to the difference between the dry melt reference temperature and a temperature by which the dry melt reference temperature is depressed by the presence of condensable diluent gas with the resin in the reactor. Optionally, the method also includes the step of controlling the reaction in response to the reduced melt reference temperature or a stickiness parameter determined from the reduced melt reference temperature.

    摘要翻译： 在一些实施方案中，一种方法包括以下步骤：监测在流化床反应器中产生聚合物树脂的聚合反应，其中干燥熔体参考温度是干燥形式的树脂的熔融特性的特征，并且响应于数据指示 的反应的至少一个监测参数，以在线方式确定降低的熔融参考温度，其至少基本上等于干熔体参考温度与干熔体参考温度被压下的温度之间的差异 在反应器中存在可冷凝稀释气体与树脂。 任选地，该方法还包括响应于降低的熔融参考温度或从降低的熔融参考温度确定的粘性参数来控制反应的步骤。