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公开(公告)号：US4988783A
公开(公告)日：1991-01-29
申请号：US473104
申请日：1990-02-02
申请人： Debra L. Beran , Kevin J. Cann , Robert J. Jorgensen , Frederick J. Karol , Norma J. Maraschin , Arthur E. Marcinkowsky
发明人： Debra L. Beran , Kevin J. Cann , Robert J. Jorgensen , Frederick J. Karol , Norma J. Maraschin , Arthur E. Marcinkowsky
IPC分类号： C08F10/02 , C08F210/16
CPC分类号： C08F10/02 , C08F210/16 , Y10S526/901
摘要： An ethylene polymerization catalyst comprising a supported precursor of vanadium trihalide/electron donor complex and alkylaluminum or boron halides, when combined with alkylaluminum cocatalyst and alkyl halide promoter, provides enhanced polymerization and productivity plus superior polyethylene.
摘要翻译： 当与烷基铝助催化剂和烷基卤促进剂组合时，包含三卤化钒/电子给体络合物和烷基铝或卤化硼的负载型前体的乙烯聚合催化剂提供增强的聚合和生产率以及优异的聚乙烯。
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公开(公告)号：US4508842A
公开(公告)日：1985-04-02
申请号：US480297
申请日：1983-03-29
申请人： Debra L. Beran , Kevin J. Cann , Robert J. Jorgensen , Frederick J. Karol , Norma J. Maraschin , Arthur E. Marcinkowsky
发明人： Debra L. Beran , Kevin J. Cann , Robert J. Jorgensen , Frederick J. Karol , Norma J. Maraschin , Arthur E. Marcinkowsky
CPC分类号： C08F10/02 , C08F210/16
摘要： An ethylene polymerization catalyst comprising a supported precursor of vanadium trihalide/electron donor complex and alkylaluminum or boron halides, when combined with alkylaluminum cocatalyst and alkyl halide promoter provides enhanced polymerization and productivity plus superior polyethylene.
摘要翻译： 包含三卤化钒/电子给体络合物和烷基铝或卤化硼的负载型前体的乙烯聚合催化剂当与烷基铝助催化剂和烷基卤助催化剂组合时，提供增强的聚合和生产率以及优异的聚乙烯。
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3.发明授权Catalyst for regulating the molecular weight distribution of ethylene polymers 失效用于调节乙烯聚合物分子量分布的催化剂
公开(公告)号：US4923938A
公开(公告)日：1990-05-08
申请号：US339590
申请日：1989-04-14
申请人： Sun-Chueh Kao , Kevin J. Cann , Frederick J. Karol , Arthur E. Marcinkowsky , Mark G. Goode , Eugene H. Theobald
发明人： Sun-Chueh Kao , Kevin J. Cann , Frederick J. Karol , Arthur E. Marcinkowsky , Mark G. Goode , Eugene H. Theobald
IPC分类号： C08F10/00
CPC分类号： C08F10/00
摘要： A vanadium-based catalyst is treated with certain oxygen-containing compounds as a means of narrowing and effectively regulating the molecular weight distribution of the polymers produced with the catalyst.
摘要翻译： 用某些含氧化合物处理钒基催化剂作为缩小并有效调节用催化剂生产的聚合物的分子量分布的手段。
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4.发明授权Ethylene polymerization using a titanium and vanadium catalyst system in staged reactors 失效在分段反应器中使用钛和钒催化剂体系的乙烯聚合
公开(公告)号：US5442018A
公开(公告)日：1995-08-15
申请号：US221845
申请日：1994-04-01
申请人： Kevin J. Cann , James W. Nicoletti , Frederick J. Karol , Arthur E. Marcinkowsky , Thomas E. Spriggs , Mark C. Hwu
发明人： Kevin J. Cann , James W. Nicoletti , Frederick J. Karol , Arthur E. Marcinkowsky , Thomas E. Spriggs , Mark C. Hwu
IPC分类号： C08F2/34 , C08F10/02 , C08F210/16 , C08L23/04
CPC分类号： C08F10/02 , C08L23/04 , C08F210/16 , C08F2410/05
摘要： A process for producing polyethylene having a broad molecular weight distribution is provided, in which ethylene and optionally a comonomer are contacted in two reactors connected in series, one reactor containing a titanium-based catalyst and the other reactor containing a vanadium-based catalyst and a halohydrocarbon promoter, or alternatively, both reactors containing a mixed metal catalyst comprising both titanium and vanadium. In the latter case, the halohydrocarbon promoter is present in only one of the reactors to activate the vanadium sites of the catalyst and deactivate the titanium sites of the catalyst simultaneously.
摘要翻译： 提供了一种制备具有宽分子量分布的聚乙烯的方法，其中乙烯和任选的共聚单体在串联连接的两个反应器中接触，一个包含钛基催化剂的反应器和另一个含有钒基催化剂的反应器和 或者可选地，两个反应器都含有包含钛和钒的混合金属催化剂。 在后一种情况下，卤代烃促进剂仅存在于一个反应器中以活化催化剂的钒位点并同时使催化剂的钛位点失活。
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公开(公告)号：US5070057A
公开(公告)日：1991-12-03
申请号：US502678
申请日：1990-04-02
CPC分类号： C08F10/00
摘要： An improved support vanadium catalyst, especially an improved Beran et al. catalyst system and ethylene polymerization process in which the improvement derives from fixing the promoter to a component of the catalyst composition such that it is a molecularly structural component of the catalyst and thus is not separately fed to the polymerization reaction, but instead is part of the catalyst composition fed to the reaction.
摘要翻译： 改进的载体钒催化剂，特别是改进的Beran等 催化剂体系和乙烯聚合方法，其中改进来自于将催化剂固定到催化剂组合物的组分，使得其是催化剂的分子结构组分，因此不分别进料到聚合反应中，而是部分 催化剂组合物进料到反应中。
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公开(公告)号：US4892853A
公开(公告)日：1990-01-09
申请号：US251360
申请日：1988-09-30
CPC分类号： C08F10/02
摘要： A vanadium catalyst composition comprising:(i) the reaction product of a vanadium compound and an electron donor, which is a liquid, organic Lewis base in which the vanadium compound is soluble;(ii) a hydrocarbyl aluminum cocatalyst; and(iii) a promoter having the following formula:C.sub.3 (X).sub.a (F).sub.b (H).sub.cwherein X is chlorine, bromine, or iodine, and each X can be alike or differenta=an integer from 6 to 8b=an integer from 0 to 2c=an integer from 0 to 2a+b+c=8
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公开(公告)号：US4845067A
公开(公告)日：1989-07-04
申请号：US214587
申请日：1988-07-01
申请人： Sun-Chueh Kao , Kevin J. Cann , Frederick J. Karol , Arthur E. Marcinkowsky , Mark G. Goode , Eugene H. Theobald
发明人： Sun-Chueh Kao , Kevin J. Cann , Frederick J. Karol , Arthur E. Marcinkowsky , Mark G. Goode , Eugene H. Theobald
CPC分类号： C08F10/00 , Y10S526/901
摘要： A vanadium-based catalyst is treated with certain oxygen-containing compounds as a means of narrowing and effectively regulating the molecular weight distribution of the polymers produced with the catalyst.
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公开(公告)号：US4363904A
公开(公告)日：1982-12-14
申请号：US246913
申请日：1981-03-23
IPC分类号： C08F210/16
CPC分类号： C08F210/16 , Y10S526/916 , Y10T428/24975
摘要： Heterogeneous ethylene based hydrocarbon copolymers having high tear strength properties in film form, formed from ethylene, C.sub.3-4 monomer and C.sub.5-8 monomer with a molar ratio in the polymer of (C.sub.3-4 /C.sub.2) of about 0.006 to 0.09, a (C.sub.5-8 /C.sub.2) ratio of about 0.003 to 0.07 and having a Chain Branch Factor of about 0.2 to 0.8 and a narrow molecular weight distribution; a gas phase process for making such polymers, and film made from such polymers.
摘要翻译： 由乙烯，C3-4单体和C5-8单体形成的具有高的撕裂强度特性的非均相乙烯基烃共聚物，（C3-4 / C2）的聚合物摩尔比为约0.006至0.09，a（ C5-8 / C2）比为约0.003至0.07，链分支因子为约0.2至0.8，分子量分布窄; 用于制备这种聚合物的气相方法和由这种聚合物制成的膜。
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公开(公告)号：US4153576A
公开(公告)日：1979-05-08
申请号：US902222
申请日：1978-05-02
IPC分类号： C07F11/00 , C08F110/02 , C08F4/78 , B01D47/02
CPC分类号： C07F11/00 , C08F110/02
摘要： Cyclopentadienyl chromium alkyl/aryl oxides and siloxides have been synthesized which when deposited on silica and treated with a silane show catalytic activity in the polymerization of ethylene. These chromium compounds also can be used for scavenging oxygen and volatile sulfur compounds from various liquid and gaseous streams.
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公开(公告)号：US4359561A
公开(公告)日：1982-11-16
申请号：US246914
申请日：1981-03-23
IPC分类号： C08F2/34 , C08F4/02 , C08F210/16 , C08F4/52
CPC分类号： C08F210/16 , Y10S526/916
摘要： Heterogeneous ethylene based hydrocarbon copolymers having high tear strength properties in film form, formed from ethylene, C.sub.3-4 monomer and C.sub.5-8 monomer with a molar ratio in the polymer of C.sub.3-4 /C.sub.2 of about 0.006 to 0.09, a C.sub.5-8 /C.sub.2 ratio of about 0.003 to 0.07 and having a Chain Branch Factor of about 0.2 to 0.8 and a narrow molecular weight distribution; a gas phase process for making such polymers, and film made from such polymers.
摘要翻译： 由乙烯，C3-4单体和C3-8 / C2聚合物摩尔比为约0.006至0.09的C5-8单体形成的膜形式具有高撕裂强度特性的非均相乙烯基烃共聚物，C5-8 / C2比约为0.003〜0.07，分枝因子为约0.2〜0.8，分子量分布窄; 用于制备这种聚合物的气相方法和由这种聚合物制成的膜。
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