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11.发明授权公开(公告)号：US08318872B2
公开(公告)日：2012-11-27
申请号：US12808946
申请日：2008-12-17
申请人： Bruce J. Savatsky , John H. Oskam , Mark W. Blood , Mark B. Davis , Douglas H. Jackson , Timothy R. Lynn , Daniel P. Zilker, Jr.
发明人： Bruce J. Savatsky , John H. Oskam , Mark W. Blood , Mark B. Davis , Douglas H. Jackson , Timothy R. Lynn , Daniel P. Zilker, Jr.
IPC分类号： C08F4/06 , C08F4/44 , C08F4/68 , C08F4/00 , C08F4/80 , C08F210/00 , C08F110/02
CPC分类号： C08F10/00 , C08F4/659 , C08F4/65925 , C08F110/02 , C08F4/65904 , C08F2/34 , C08F2/38 , C08F2500/05
摘要： A method of performing a polymerization reaction in a gas phase polymerization reactor to produce a bimodal polymer while controlling activity of a bimodal polymerization catalyst composition in the reactor by controlling concentration of at least one induced condensing agent (‘ICA’) in the reactor is provided. In some embodiments, the ICA is isopentane (or another hydrocarbon compound) and the bimodal catalyst composition includes a Group 15 and metal containing catalyst compound (or other HMW catalyst for catalyzing polymerization of a high molecular weight fraction of the product), and a metallocene catalyst compound (or other LMW catalyst for catalyzing polymerization of a low molecular weight fraction of the product).
摘要翻译： 提供了一种在气相聚合反应器中进行聚合反应以制备双峰聚合物的方法，同时通过控制反应器中至少一种诱导的缩合剂（ICA）的浓度来控制反应器中双峰聚合催化剂组合物的活性。 在一些实施方案中，ICA是异戊烷（或另一种烃化合物），双峰催化剂组合物包括第15族和含金属的催化剂化合物（或用于催化产物的高分子量级分聚合的其它HMW催化剂）和茂金属 催化剂化合物（或用于催化产物的低分子量级分的聚合的其它LMW催化剂）。
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公开(公告)号：US07238756B2
公开(公告)日：2007-07-03
申请号：US10685607
申请日：2003-10-15
申请人： Fred D. Ehrman , Pradeep P. Shirodkar , Mark Bradley Davis , Daniel P. Zilker, Jr. , Porter C. Shannon
发明人： Fred D. Ehrman , Pradeep P. Shirodkar , Mark Bradley Davis , Daniel P. Zilker, Jr. , Porter C. Shannon
IPC分类号： C08F4/6392 , C08F4/6592
CPC分类号： C08F210/16 , C08F4/65916 , C08F4/65925 , C08F10/00 , Y10S526/905 , C08F4/65904 , C08F4/65912 , C08F2/34 , C08F2/40 , C08F2/005 , C08F2/38 , C08F210/08 , C08F2500/12 , C08F2500/05 , C08F2500/01 , C08F2500/02
摘要： Methods of controlling the flow index and/or molecular weight split of a polymer composition are disclosed. The method of producing a polymer composition in one embodiment comprises incorporating a high molecular weight polymer into a low molecular weight polymer to form the polymer composition in a single polymerization reactor in the presence of polymerizable monomers, a bimetallic catalyst composition and at least one control agent; wherein the control agent is added in an amount sufficient to control the level of incorporation of the high molecular weight polymer, the level of low molecular weight polymer, or both. Examples of control agents include alcohols, ethers, amines and oxygen.
摘要翻译： 公开了控制聚合物组合物的流动指数和/或分子量分数的方法。 在一个实施方案中，制备聚合物组合物的方法包括将高分子量聚合物掺入到低分子量聚合物中以在可聚合单体，双金属催化剂组合物和至少一种对照剂的存在下在单一聚合反应器中形成聚合物组合物 ; 其中控制剂的添加量足以控制高分子量聚合物的掺入水平，低分子量聚合物的含量或两者。 控制剂的实例包括醇，醚，胺和氧。
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公开(公告)号：US08497330B2
公开(公告)日：2013-07-30
申请号：US12976059
申请日：2010-12-22
申请人： F. David Hussein , Kevin J. Cann , Ann M. Schoeb-Wolters , Phuong A. Cao , Bruce J. Savatsky , Eric J. Markel , Daniel P. Zilker, Jr. , Garth R. Giesbrecht
发明人： F. David Hussein , Kevin J. Cann , Ann M. Schoeb-Wolters , Phuong A. Cao , Bruce J. Savatsky , Eric J. Markel , Daniel P. Zilker, Jr. , Garth R. Giesbrecht
CPC分类号： C08F10/00 , C08F4/65912 , C08F4/65925 , C08F10/02 , C08F210/16 , C08F4/65916 , C08F2/34 , C08F210/14 , C08F2500/12 , C08F2500/03
摘要： Methods for gas phase olefin polymerization are provided. The method can include combining a spray dried catalyst system with a diluent to produce a catalyst slurry. The catalyst system can include a metallocene compound. Ethylene, a continuity additive, and the catalyst slurry can be introduced to a gas phase fluidized bed reactor. The reactor can be operated at conditions sufficient to produce a polyethylene. The spray dried catalyst system can have a catalyst productivity of at least 12,000 grams polyethylene per gram of the catalyst system.
摘要翻译： 提供了气相烯烃聚合方法。 该方法可以包括将喷雾干燥的催化剂体系与稀释剂组合以产生催化剂浆料。 催化剂体系可以包括金属茂化合物。 可将乙烯，连续性添加剂和催化剂浆料引入气相流化床反应器。 反应器可以在足以产生聚乙烯的条件下操作。 喷雾干燥的催化剂体系可以具有每克催化剂体系至少12,000克聚乙烯的催化剂生产率。
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公开(公告)号：US5604172A
公开(公告)日：1997-02-18
申请号：US595777
申请日：1996-02-02
IPC分类号： B01J21/10 , B01J37/08 , C08F4/656 , C08F10/00 , C08F210/06 , C08F210/16
CPC分类号： B01J37/088 , B01J21/10 , B01J37/086 , C08F10/00 , C08F210/06 , C08F210/16 , Y10S526/908
摘要： A process is provided for preparing a shape-shifted catalyst component comprising (1) contacting a dihydrocarbyloxide magnesium compound with carbon dioxide in the presence of a slurrying agent to form a slurry of a carboxylated dihydrocarbyloxide magnesium compound; (2) adding a filler to the slurry either before or after the carboxylation of step (1); (3) spray drying the slurry of step (2) to evaporate the slurrying agent and to produce solid particles of the carboxylated dihydrocarbyloxide magnesium compound incorporating the filler; and, optionally, (4) heating the solid particles to remove carbon dioxide to produce a shape-shifted dihydrocarbyloxide magnesium compound component. A catalyst system using the component and a polymerization process employing the catalyst system are also provided.
摘要翻译： 提供了一种制备形状转移催化剂组分的方法，其包括（1）在淤浆剂存在下使二氢氧化镁镁化合物与二氧化碳接触以形成羧基化二氢氧化镁镁化合物的浆料; （2）在步骤（1）的羧化之前或之后向浆料中加入填料; （3）喷雾干燥步骤（2）的浆料以蒸发制浆剂并产生掺入填料的羧化二氢氧化镁镁化合物的固体颗粒; 和（4）加热固体颗粒以除去二氧化碳以产生形状转移的二氢氧化镁化合物组分。 还提供了使用该组分的催化剂体系和采用催化剂体系的聚合方法。
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15.发明授权Process for passivation of a reactor after shutdown of alpha olefin polymerization processes 失效在关闭α-烯烃聚合方法后钝化反应器的方法
公开(公告)号：US5548040A
公开(公告)日：1996-08-20
申请号：US359513
申请日：1994-12-20
CPC分类号： C08F210/16
摘要： A method for passivating internal surfaces of a reactor system during start-up and shutdown of an alpha olefin polymerization or copolymerization reaction by adding a passivation agent such as a dialkyl zinc compound, an alcohol, or an epoxide, to the reactor prior to exposing the internal reactor surfaces to air or moisture before reaction initiation and/or after reaction ceases.
摘要翻译： 一种在将α-烯烃聚合或共聚反应的启动和停止期间钝化反应器系统的内表面的方法，在暴露所述反应器之前，向所述反应器中加入钝化剂，例如二烷基锌化合物，醇或环氧化物 在反应开始和/或反应停止之后内部反应器表面与空气或水分。
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