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68 条记录 (耗时 0.037 秒)

    Method for on-line monitoring and control of polymerization processes and reactors to prevent discontinuity events
    23.
    发明申请
    Method for on-line monitoring and control of polymerization processes and reactors to prevent discontinuity events 失效
    用于在线监测和控制聚合过程和反应器以防止不连续事件的方法

    公开(公告)号：US20080319583A1

    公开(公告)日：2008-12-25

    申请号：US12214469

    申请日：2008-06-19

    申请人： Robert O. Hagerty ,  Ian D. Burdett ,  Marc L. DeChellis ,  F. David Hussein ,  Eric J. Markel ,  Michael E. Muhle ,  Richard B. Pannell ,  Daniel P. Zilker

    发明人： Robert O. Hagerty ,  Ian D. Burdett ,  Marc L. DeChellis ,  F. David Hussein ,  Eric J. Markel ,  Michael E. Muhle ,  Richard B. Pannell ,  Daniel P. Zilker

    IPC分类号： G05B21/00

    CPC分类号： C08F10/00 ,  C08F2400/02 ,  C08F2/34 ,  C08F2/002 ,  C08F2/00

    摘要： Generally, a method of monitoring a polymerization reaction in a fluid bed reactor to generate, in on-line fashion, data indicative of the imminent occurrence of a discontinuity event (for example, sheeting) and optionally also control the reaction to prevent the occurrence of the discontinuity event is provided. Typical embodiments include the steps of generating in on-line fashion at least one of bed static data indicative of static charge in the fluidized bed and carryover static data indicative of carryover static; and generating at least one of temperature data (in on-line fashion using at least one monitored reaction parameter) indicative of a first temperature and acoustic emission data indicative of resin stickiness in the reactor, where the first temperature is indicative of at least one of degree of resin stickiness in the reactor and a characteristic of melting behavior of polymer resin in the reactor in the presence of at least one diluent.

    摘要翻译： 通常，监测流化床反应器中的聚合反应的方法，以在线方式产生指示即将发生的不连续事件（例如，片材）的数据，并且还可任选地控制反应以防止发生 提供不连续事件。 典型的实施方案包括以在线方式产生指示流化床中的静电荷的床静态数据中的至少一种并携带指示携带静电的静态数据的步骤; 并且产生指示在反应器中指示树脂粘性的第一温度和声发射数据的温度数据（以在线方式使用至少一个监测的反应参数）中的至少一个，其中第一温度表示以下中的至少一个： 在至少一种稀释剂存在下，反应器中的树脂粘性程度和聚合物树脂在反应器中的熔融行为的特征。

    Catalyst composition for polymerizing alpha-olefins
    25.
    再颁专利
    Catalyst composition for polymerizing alpha-olefins 失效
    用于聚合α-烯烃的催化剂组合物

    公开(公告)号：USRE33683E

    公开(公告)日：1991-09-03

    申请号：US357249

    申请日：1989-05-26

    申请人： Louanne M. Allen ,  Robert O. Hagerty ,  Richard O. Mohring

    发明人： Louanne M. Allen ,  Robert O. Hagerty ,  Richard O. Mohring

    IPC分类号： C08F210/02

    CPC分类号： C08F210/02

    摘要： A catalyst composition for polymerizing alpha-olefins is prepared by reacting a transition metal compound, e.g., titanium, with trimethylaluminum catalyst activator. In a preferred embodiment, the catalyst is supported on a porous refractory support and is prepared by additionally reacting a magnesium compound or an organomagnesium composition with the support.Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention. The polymer products have higher bulk density and produce films of greater strength than polymers prepared with similar catalysts utilizing different alkyl-aluminum activators, e.g., triethylaluminum and triisobutylaluminum.

    Method and apparatus for the blending of granular materials
    27.
    发明授权
    Method and apparatus for the blending of granular materials 失效
    用于混合颗粒材料的方法和装置

    公开(公告)号：US4285602A

    公开(公告)日：1981-08-25

    申请号：US82471

    申请日：1979-10-09

    申请人： Robert O. Hagerty ,  Jannan G. Lee ,  Kenneth C. Yi

    发明人： Robert O. Hagerty ,  Jannan G. Lee ,  Kenneth C. Yi

    IPC分类号： B01F5/24 ,  B01F15/02

    CPC分类号： B01F5/242

    摘要： Gravity flow blending system for granular materials by use of novel internal handling means which provides for a continuous, uniform withdrawal of material from a multitude of locations in a large capacity bin. The invention utilizes basic principles of solids rheology to provide for a natural internal self-regulation which makes it possible to use this system for a wide range of material discharge rates and granular material types.

    摘要翻译： 用于颗粒材料的重力流混合系统通过使用新的内部处理装置，其提供从大容量箱中的多个位置连续均匀地抽出材料。 本发明利用固体流变学的基本原理来提供自然的内部自我调节，这使得可以将该系统用于广泛的材料排出速率和颗粒材料类型。

    Methods for determining temperature value indicative of resin stickiness from data generated by polymerization reaction monitoring
    28.
    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。

    Methods for on-line determination of degree of resin stickiness using a model for depression of melt initiation temperature
    30.
    发明授权
    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：US07774178B2

    公开(公告)日：2010-08-10

    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

    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。