公开(公告)号：US07696289B2

公开(公告)日：2010-04-13

申请号：US11433682

申请日：2006-05-12

申请人： D. Brett Fischbuch ,  Robert O. Hagerty ,  Sandy C. Hinds ,  Douglas R. Holroyd ,  Ai Vey Ng ,  Diwaker Singh

发明人： D. Brett Fischbuch ,  Robert O. Hagerty ,  Sandy C. Hinds ,  Douglas R. Holroyd ,  Ai Vey Ng ,  Diwaker Singh

IPC分类号： C08F2/34 ,  C08F6/00 ,  C08F210/08

CPC分类号： B01J8/1809 ,  B01J2208/00274 ,  B01J2219/00191 ,  C08F10/00 ,  C08F110/02 ,  C08F2400/02 ,  Y10S526/901 ,  C08F2/34 ,  C08F2/00

摘要： The present invention relates to a continuous gas phase process comprising passing a recycle stream through a fluidized bed in a gas phase fluidized bed reactor, wherein the recycle stream comprises a low molecular weight dew point increasing component and a high molecular weight component, polymerizing an alpha-olefin monomer in the presence of a catalyst, and controlling an amount of the low molecular weight dew point increasing component in the recycle stream such that a dew point approach temperature of the recycle stream is less than the dew point approach temperature when operating with the higher molecular weight dew point increasing component alone.

摘要翻译： 连续气相方法本发明涉及一种连续气相方法，包括使循环流通过气相流化床反应器中的流化床，其中再循环流包含低分子量露点增加组分和高分子量组分，聚合α 烯烃单体，并且控制再循环流中低分子量露点增加组分的量，使得当循环流中的露点接近温度小于露点接近温度时 较高分子量露点增加组分。

公开(公告)号：US07122607B2

公开(公告)日：2006-10-17

申请号：US11132863

申请日：2005-05-19

申请人： Robert O. Hagerty ,  Kevin B. Stavens ,  Marc L. DeChellis ,  D. Brett Fischbuch ,  James M. Farley

发明人： Robert O. Hagerty ,  Kevin B. Stavens ,  Marc L. DeChellis ,  D. Brett Fischbuch ,  James M. Farley

IPC分类号： C08F2/34

CPC分类号： C08F210/16 ,  Y10S526/901 ,  C08F2/34 ,  C08F2/005 ,  C08F210/14 ,  C08F2500/12

摘要： The present invention relates to a continuous gas phase process comprising polymerizing one or more hydrocarbon monomer(s) in a fluidized bed reactor in the presence of catalyst system or polymerization catalyst and a condensable fluid for a period of at least 12 hours where the bed temperature is less than the Critical Temperature and the dew point temperature of the gas composition in the reactor is within 25° C. of the bed temperature.

摘要翻译： 本发明涉及连续气相方法，其包括在催化剂体系或聚合催化剂和可冷凝流体存在下在流化床反应器中聚合一种或多种烃单体至少12小时的时间，其中床温 小于临界温度，反应器中气体组成的露点温度在床温25℃以内。

公开(公告)号：US07300987B2

公开(公告)日：2007-11-27

申请号：US11515525

申请日：2006-09-05

申请人： Robert O. Hagerty ,  Kevin B. Stavens ,  Marc L. DeChellis ,  D. Brett Fischbuch ,  James M. Farley

发明人： Robert O. Hagerty ,  Kevin B. Stavens ,  Marc L. DeChellis ,  D. Brett Fischbuch ,  James M. Farley

IPC分类号： C08F2/34 ,  C08F10/00

CPC分类号： C08F210/16 ,  Y10S526/901 ,  C08F2/34 ,  C08F2/005 ,  C08F210/14 ,  C08F2500/12

摘要： The present invention relates to a continuous gas phase process comprising polymerizing one or more hydrocarbon monomer(s) in a fluidized bed reactor in the presence of catalyst system or polymerization catalyst and a condensable fluid for a period of at least 12 hours where the bed temperature is less than the Critical Temperature and the dew point temperature of the gas composition in the reactor is within 25° C. of the bed temperature.

摘要翻译： 本发明涉及连续气相方法，其包括在催化剂体系或聚合催化剂和可冷凝流体存在下在流化床反应器中聚合一种或多种烃单体至少12小时的时间，其中床温 小于临界温度，反应器中气体组成的露点温度在床温25℃以内。

公开(公告)号：US07507780B2

公开(公告)日：2009-03-24

申请号：US11975053

申请日：2007-10-17

申请人： Robert O. Hagerty ,  Kevin B. Stavens ,  Marc L. DeChellis ,  D. Brett Fischbuch ,  James M. Farley

发明人： Robert O. Hagerty ,  Kevin B. Stavens ,  Marc L. DeChellis ,  D. Brett Fischbuch ,  James M. Farley

IPC分类号： C08F2/34 ,  C08F10/02

CPC分类号： C08F210/16 ,  Y10S526/901 ,  C08F2/34 ,  C08F2/005 ,  C08F210/14 ,  C08F2500/12

摘要： The present invention relates to a continuous gas phase process comprising polymerizing one or more hydrocarbon monomer(s) in a fluidized bed reactor in the presence of a Ziegler-Natta-type catalyst system and a condensable fluid for a period of at least 12 hours where the bed temperature is less than the Critical Temperature and the dew point temperature of the gas composition in the reactor is within 25° C. of the bed temperature.

摘要翻译： 本发明涉及连续气相方法，其包括在齐格勒 - 纳塔型催化剂体系和可冷凝流体存在下在流化床反应器中聚合一种或多种烃单体至少12小时的时间， 床温低于临界温度，反应器中气体组成的露点温度在床温25℃以内。

公开(公告)号：US07482410B2

公开(公告)日：2009-01-27

申请号：US11386289

申请日：2006-03-22

申请人： D. Brett Fischbuch

发明人： D. Brett Fischbuch

IPC分类号： C08F2/34 ,  C08F10/02

CPC分类号： C08F110/02 ,  Y02P20/584 ,  Y10S526/901 ,  Y10S526/905 ,  C08F4/69 ,  C08F2/34 ,  C08F2500/07

摘要： Processes for reducing the ultra high molecular weight polymeric material content of a high density polyethylene produced with a bis-triarylsilyl chromate catalyst system are provided. Processes for reducing the gel content of articles produced from high density polyethylene are also provided. The gel content of the articles is reduced by using the high density polyethylene with reduced ultra high molecular weight polymeric material content to produce the articles. The processes described reduce the content of ultra high molecular weight polymeric material in comparison to conventional high density polyethylene by introducing at least one catalyst deactivator into a recycle gas line containing a recycle gas stream associated with the fluidized bed reactor. The at least one catalyst deactivator has a boiling point lower than the maximum temperature within the recycle gas line. In certain embodiments, the at least one catalyst deactivator is introduced in the portion of the recycle gas line upstream of a recycle gas cooler at a ratio of 0.0075 mole of the at least one catalyst deactivator per 1 million moles of make-up ethylene to about 0.12 mole of the at least one catalyst deactivator per 1 million moles of make-up ethylene in the reaction system. In certain embodiments, the at least one catalyst deactivator is oxygen.

摘要翻译： 提供了用双 - 三芳基甲硅烷基铬酸盐催化剂体系制备的高密度聚乙烯的超高分子量聚合材料含量降低的方法。 还提供了用于降低由高密度聚乙烯生产的制品的凝胶含量的方法。 通过使用具有降低的超高分子量聚合物材料含量的高密度聚乙烯来制备制品的凝胶含量以产生制品。 所述方法与常规的高密度聚乙烯相比，通过将至少一种催化剂失活剂引入含有与流化床反应器相关联的再循环气流的再循环气体管线中，减少了超高分子量聚合物材料的含量。 所述至少一种催化剂失活剂的沸点低于循环气体管线内的最高温度。 在某些实施方案中，将至少一种催化剂失活剂引入再循环气体冷却器上游部分循环气体管道中，其比例为每100万摩尔补充乙烯至约一摩尔催化剂失活剂0.0075摩尔至约 在反应体系中每100万摩尔补充乙烯0.12摩尔的至少一种催化剂失活剂。 在某些实施方案中，至少一种催化剂失活剂是氧。