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1.发明公开
公开(公告)号：EP1062254A1
公开(公告)日：2000-12-27
申请号：EP99912265.8
申请日：1999-03-04
CPC分类号： C08F10/00 , C08F4/65908 , C08F4/65912 , C08F4/65927 , C08F210/06 , C08F210/16 , C08F210/18 , C08L23/142 , C08L23/16 , C08L2205/025 , C08L2308/00 , C08L2312/00 , C08L2314/06 , Y10S526/916 , Y10S526/943 , C08F2/06 , C08F4/6592 , C08F2/001 , C08L2666/04 , C08F2500/17 , C08F2500/03 , C08F2500/08 , C08F2500/15 , C08F2500/21 , C08F2500/04 , C08F2500/20 , C08F210/14 , C08F2500/12 , C08F2500/25 , C08F236/20
摘要： The invention is a polymerization process for ethylene copolymers having a density less than 0.915 comprising contacting ethylene, one or more α-olefin monomer, and optionally one or more diene monomer, with a catalyst composition comprising the reaction product of at least one organometallic Group 4 metallocene compound derived from a bridged, fused-ring ligand containing biscyclopentadienyl hafnocene, said bridge being a substituted or unsubstituted carbon or silicon atom connecting the biscyclopentadienyl ligands, and a salt of a Group 13 element anionic complex having halogenated aromatic ligands in an essentially tetrahedral structure wherein the aromatic groups are polycyclic fused or pendant aromatic rings. The process is particularly suitable for the preparation of high comonomer content and high molecular weight ethylene-α-olefin plastomers and ethylene-propylene or ethylene-propylene-diene monomer elastomers.
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公开(公告)号：EP1060198A1
公开(公告)日：2000-12-20
申请号：EP99908638.2
申请日：1999-03-03
CPC分类号： C08F10/00 , C08F4/65908 , C08F4/65912 , C08F4/65927 , C08F210/06 , C08F210/16 , C08F210/18 , C08L23/142 , C08L23/16 , C08L2205/025 , C08L2308/00 , C08L2312/00 , C08L2314/06 , Y10S526/916 , Y10S526/943 , C08F2/06 , C08F4/6592 , C08F2/001 , C08L2666/04 , C08F2500/17 , C08F2500/03 , C08F2500/08 , C08F2500/15 , C08F2500/21 , C08F2500/04 , C08F2500/20 , C08F210/14 , C08F2500/12 , C08F2500/25 , C08F236/20
摘要： Bulky noncoordinating anions that are surprisingly stable under olefin polymerization conditions such that olefin polymers can be prepared with unexpectedly high molecular weights at high catalyst efficiencies. Thus the invention is directed to an olefin polymerization process comprising contacting under polymerization conditions one or more ethylenically unsaturated monomers with a catalyst composition comprising at least one organometallic transition metal compound activated to a cationic state and a stabilizing, compatible non-coordinating Group 13 anionic complex having halogenated aromatic ligands in an essentially tetrahedral structure wherein the aromatic groups are polycyclic fused or pendant aromatic rings.
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公开(公告)号：EP1042376A1
公开(公告)日：2000-10-11
申请号：EP98964875.3
申请日：1998-12-23
CPC分类号： C08F10/00 , C08F4/65908 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F10/02 , C08F110/02 , C08F4/65925
摘要： Described is a metallocene polymerization process for producing ethylene polymers. The process exhibits very high productivity and is particularly useful for the production of ethylene homopolymers or high density polyethylene (HDPE). The process is conducted in a liquid reaction medium between about 25 °C and 250 °C and comprises feeding continuously or semi-continuously into the liquid reaction medium a catalyst solution comprising an unsupported zirconium or hafnium biscyclopentadienyl metallocene having one or more isobutyl groups on each cyclopentadienyl ring thereof.
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公开(公告)号：EP1259553A1
公开(公告)日：2002-11-27
申请号：EP00973781.8
申请日：2000-10-23
CPC分类号： C08F10/00 , C07F17/00 , C08F4/65908 , C08F10/02 , C08F110/02 , C08F210/16 , C08F4/65927 , C08F210/14 , C08F2/06 , C08F2500/03 , C08F2500/04 , C08F2500/12 , C08F2500/08
摘要： This application discloses triphenyl carbenium NCA's as catalyst activators for a class of asymmetrically bridged hafnocene catalyst precursors. These catalyst precursors are activated into olefin polymerization catalysts and are suitable for gas, solution, and slurry-phase polymerization reactions. The disclosed bridge is methylenyl- or silanylenyl-based and is optionally, alkyl or aryl substituted. The catalytic activity of the disclosed hafnocene catalyst precursors is substantially enhanced over identical catalysts that are activated with other activators.
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公开(公告)号：EP1060202A1
公开(公告)日：2000-12-20
申请号：EP99909746.2
申请日：1999-03-02
发明人： COZEWITH, Charles , HARRINGTON, Bruce, A. , DATTA, Sudhin , FOLIE, Bernard, J. , WALZER, John, F., Jr. , CROWTHER, Donna, J.
IPC分类号： C08F297/08 , C08L23/10 , C08L23/16
CPC分类号： C08F10/00 , C08F4/65908 , C08F4/65912 , C08F210/16 , C08F210/18 , C08L23/0815 , C08L23/142 , C08L23/16 , C08L2205/02 , C08L2205/025 , C08L2308/00 , C08L2312/00 , C08L2314/06 , Y10S526/943 , C08F4/65927 , C08F4/6592 , C08F2/06 , C08F2/001 , C08L2666/04 , C08F210/06 , C08F2500/21 , C08F2500/17 , C08F2500/03 , C08F2500/20 , C08F2500/04 , C08F2500/25 , C08F236/20
摘要： This invention relates to a method of making polymer blends using series reactors and a metallocene catalyst. Monomers used by the invention are ethylene, a higher alpha-olefin (propylene most preferred), and optionally, a non-conjugated diene (ethylidene norbornene, i.e., ENB, most preferred). More specifically, this invention relates to making blends of EP (ethylene-propylene) copolymers in which the blend components differ in any of the following characteristics: 1) composition, 2) molecular weight, and 3) crystallinity. We use the terminology EP copolymer to also include terpolymers that contain varying amounts of non-conjugated diene. Such terpolymers are commonly known as EPDM.
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公开(公告)号：EP1060199A1
公开(公告)日：2000-12-20
申请号：EP99909718.1
申请日：1999-03-02
发明人： HARRINGTON, Bruce, A. , COZEWITH, Charles , DATTA, Sudhin , FOLIE, Bernard, J. , WALZER, John, F., Jr. , CROWTHER, Donna, J.
IPC分类号： C08F210/18 , C08F297/08 , C08L23/16
CPC分类号： C08F210/16 , C08F4/65908 , C08F4/65912 , C08F4/65927 , C08F10/00 , C08F210/06 , C08F210/18 , C08F2/001 , C08F2/06 , C08F2500/17 , C08F2500/03 , C08F2500/08 , C08F2500/15 , C08F210/14 , C08F2500/25
摘要： This invention relates to a method of making polymer compositions, e.g. EPDM compositions, in a multistage reactor with monomers chosen from ethylene, C3-C8 alpha olefins, and a non-conjugated diene. In particular, the invention relates to a process for improving diene conversion during the manufacture of the aforementioned polymer compositions by use of a multistage reactor and a metallocene catalyst system.
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公开(公告)号：EP1056792A1
公开(公告)日：2000-12-06
申请号：EP99907064.2
申请日：1999-02-17
IPC分类号： C08F210/18 , C08F2/06 , C08F4/645
CPC分类号： C08F210/18 , C08F4/65908 , C08F4/65912 , Y10S526/943 , C08F2/06 , C08F4/65927 , C08F210/06 , C08F236/20 , C08F2500/25 , C08F2500/08 , C08F2500/04 , C08F2500/03
摘要： This invention is a solution process for the preparation of ethylene-α-olefin-diolefin copolymers comprising contacting ethylene, one or more a-olefin monomer, and one or more cyclic diene monomer, with a catalyst composition comprising a bridged, bis(cyclopentadienyl) zirconium compound having an unsubstituted cyclopentadienyl ligand, a multiply substituted cyclopentadienyl ligand, said ligands bridged by a covalent bridging group containing one or more Group 14 element, and two uninegative, activation reactive ligands and a catalyst activator compound. The invention process exhibits high catalyst activity, high comonomer incorporation and high diene monomer conversion rates and is particularly suitable for the preparation of elastomeric ethylene-propylene or ethylene-propylene-diene monomer elastomers.
摘要翻译： 本发明是制备乙烯-α-烯烃 - 二烯烃共聚物的溶液方法，该方法包括使乙烯，一种或多种α-烯烃单体和一种或多种环状二烯单体与催化剂组合物接触，所述催化剂组合物包含桥接的双（环戊二烯基） 具有未取代的环戊二烯基配体的锆化合物，多取代的环戊二烯基配体，所述配体通过含有一个或多个第14族元素的共价桥连基团和两个单阴性的活化反应性配体和催化剂活化剂化合物桥接。 本发明方法表现出高催化剂活性，高共聚单体结合和高二烯单体转化率，并且特别适用于制备弹性体乙烯 - 丙烯或乙烯 - 丙烯 - 二烯单体弹性体。
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公开(公告)号：EP0868445A1
公开(公告)日：1998-10-07
申请号：EP96944998.0
申请日：1996-12-18
发明人： TURNER, Howard, W. , SPEED, Charles, S. , FOLIE, Bernard, J. , CROWTHER, Donna, J. , WALZER, John, F., Jr. , FISHER, Richard, A. , VAUGHAN, George, A.
CPC分类号： C08F210/16 , C08F4/65908 , C08F4/65912 , C08F4/6592 , C08F4/65922 , C08F10/00 , C08F210/18 , Y02P20/582 , C08F2/06 , C08F210/14 , C08F2500/12 , C08F2500/03 , C08F2500/08 , C08F210/08
摘要： A polymerization process for olefinically or acetylenically unsaturated monomers is disclosed. The process comprises contacting the one or more of the monomers with a suitable ionic catalyst system in the presence of a long-chain, linear alkyl ligand-containing organo aluminum compound. Preferred ionic catalysts are derived from 1) bridged hafnium compounds, 2) silicon bridged monocyclopentadienyl titanium compounds and 3) unbridged, bulky Group 15 containing bulky monocyclopentadienyl titanium compounds, and a non-coordinating anion precursor compound. A class of preferred anion precursors consists of hydrated salts comprising a Group 1 or 2 cation and a non-coordinating anion. Using the preferred ionic catalysts high temperature processes, e.g., at or above 90 °C can be conducted to prepare polyolefins, particularly ethylene copolymers, of both high molecular weight and high comonomer content.
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公开(公告)号：EP1064311A1
公开(公告)日：2001-01-03
申请号：EP99909821.3
申请日：1999-03-03
CPC分类号： C08F10/00 , C08F4/65908 , C08F4/65912 , C08F4/65927 , C08F210/06 , C08F210/16 , C08F210/18 , C08L23/142 , C08L23/16 , C08L2205/025 , C08L2308/00 , C08L2312/00 , C08L2314/06 , Y10S526/916 , Y10S526/943 , C08F2/06 , C08F4/6592 , C08F2/001 , C08L2666/04 , C08F2500/17 , C08F2500/03 , C08F2500/08 , C08F2500/15 , C08F2500/21 , C08F2500/04 , C08F2500/20 , C08F210/14 , C08F2500/12 , C08F2500/25 , C08F236/20
摘要： The invention is directed to olefin polymerization processes using bridged hafnocene catalyst complexes comprising highly substitued noncoordinating anions that are surprisingly stable under high temperature olefin polymerization processes such that olefin copolymers having significant amount of incorporated comonomer can be prepared with high molecular weights. More specifically, the invention is a polymerization process for ethylene copolymers having a melt index of about 0.87 to about 0.930 comprising contacting, under homogeneous polymerization conditions at a reaction temperature at or above 140 °C to 225 °C, ethylene and one or more comonomers capable of insertion polymerization with a bridged hafnocene catalyst complex derived from A) a biscyclopentadienyl hafnium organometallic compound having i) at least one unsubstituted cyclopentadienyl ligand or aromatic fused-ring substituted cyclopentadienyl ligand, ii) one aromatic fused-ring substituted cyclopentadienyl ligand, iii) and a covalent bridge connecting the two cyclopentadienyl ligands, said bridge comprising a single carbon or silicon atom; and (B) an activating cocatalyst, precursor ionic compound comprising a halogenated tetraaryl-substituted Group 13 anion wherein each aryl substituent contains at least two cyclic aromatic rings.
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