Contains Non-transition Free Metal, Hydride Thereof, Or Carbon To Non-transition Metal Atom Bond Patents (Class 526/127)
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Patent number: 6995279Abstract: Metallocene compounds represented by the following general formula (1): YqKLMX2??(1) wherein M, Y, q, L and X are each as defined in the Specification.Type: GrantFiled: July 31, 2003Date of Patent: February 7, 2006Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Tsutomu Ushioda, Masato Nakano, Toshihiro Uwai
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Patent number: 6958408Abstract: The invention concerns ligands with at least a fluorosilicone substituent of general formulae (I) and (II); a method for preparing them and their use for producing catalysts useful for olefin polymerisationType: GrantFiled: August 2, 2001Date of Patent: October 25, 2005Assignee: Total Petrochemicals FranceInventors: Virginie Cheron, Jean-Luc Couturier, Hendrik Hagen, Gerard Van Koten, Berth Jan Deelman
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Patent number: 6958375Abstract: The present invention is directed to a novel one-step method for forming a supported catalyst complex of high activity by substantially simultaneously contacting a bidentate or tridentate ligand forming compound, a transition metal compound and a chromium immobilized Lewis acid support-agglomerate. The catalyst can be formed prior to polymerization of olefins or within the polymerization reaction zone.Type: GrantFiled: April 10, 2002Date of Patent: October 25, 2005Assignee: W.R. Grace & Co.-Conn.Inventors: Keng-Yu Shih, Dean Alexander Denton, Rimantas Glemza
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Patent number: 6949614Abstract: A catalyst system comprising a metallocene, a cocatalyst, a support material and optionally a further organometallic compound is described. The catalyst system can advantageously be used for the polymerization of olefins. Here, the use of aluminoxanes such as methylaluminoxane (MAO) as cocatalyst is dispensed with and a high catalyst activity and good polymer morphology are nevertheless achieved.Type: GrantFiled: April 12, 2000Date of Patent: September 27, 2005Assignee: Basell Polyolefine GmbHInventors: Jörg Schottek, Patricia Becker
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Patent number: 6943133Abstract: The present invention relates to functionalized catalyst supports that are useful in the formation of supported polymerization catalysts, supported catalysts derived from such functionalized catalyst supports, methods for preparing such functionalized catalyst supports and supported catalysts, and polymerization processes utilizing such supported catalysts. The functionalized catalyst supports comprise a particulated, solid support material having chemically bonded thereto a plurality of conjugated or non-conjugated diene or alkyne functionalized ligand groups, said composition being capable of reacting with and tethering a catalytically activatable Group 3-10 or Lanthanide metal complex thereto.Type: GrantFiled: October 23, 2001Date of Patent: September 13, 2005Assignee: Univation Technologies, LLCInventor: Alexander Vogel
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Patent number: 6939928Abstract: The metallocene compound according to the invention and the olefin polymerization catalyst containing the compound are intended to produce a catalyst capable of preparing an isotactic polymer with a high polymerization activity. The metallocene compound contains a substituted cyclopentadienyl group and a (substituted) fluorenyl group and has a structure wherein these groups are bridged by a hydrocarbon group or the like. The process for preparing a metallocene compound according to the invention is intended to selectively prepare a specific metallocene compound so as not to produce an isomer, and in this process an intermediate product is synthesized by a specific method.Type: GrantFiled: October 5, 2000Date of Patent: September 6, 2005Assignee: Mitsui Chemicals, Inc.Inventors: Koji Kawai, Masahiro Yamashita, Yasushi Tohi, Nobuo Kawahara, Kenji Michiue, Hiromu Kaneyoshi, Ryoji Mori
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Patent number: 6936563Abstract: The invention relates to coordination compounds of the general formulae (Ia) to (Ib), wherein M=Ti, Zr, Hf, V, Nb or Ta. The invention also relates to a method for producing the metal complexes and to the use of the complexes so obtained for the polymerization and copolymerization of olefins.Type: GrantFiled: February 7, 2002Date of Patent: August 30, 2005Assignee: BASF AktiengesellschaftInventors: Marc Oliver Kristen, Benno Bildstein, Alexander Krajete
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Patent number: 6919414Abstract: Novel copolymers comprise ethylene and alpha olefins having from 3 to 10 carbon atoms and which have (a) a density in the range 0.900 to 0.940 (b) Mw/Mn of 2-3.4 (c) I21/I2 from 16 to 24 (d) activation energy of flow from 28 to 45 kJ/mol (e) a ratio Ea(HMW)/Ea(LMW)>1.1, and (f) a ratio g?(HMW)/g?(LMW) from 0.85 to 0.95 The copolymers are particularly useful in film applications showing an excellent balance of processing, optical and mechanical properties. The novel polymers may suitably be prepared in the gas phase in the presence of metallocene complexes.Type: GrantFiled: August 26, 2003Date of Patent: July 19, 2005Assignee: BP Chemicals LimitedInventors: Choon Kooi Chai, Christopher James Frye
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Patent number: 6919412Abstract: Substituted monocyclopentadienyl, monoindenyl, monofluorenyl or heterocyclopentadienyl complexes of chromium, molybdenum or tungsten, wherein at least one of the substituents of the cyclopentadienyl ring carries a rigid donor function which is not exclusively bonded through sp3-hybridized carbon or silicon atoms, and a process for polymerizing olefins.Type: GrantFiled: August 1, 2000Date of Patent: July 19, 2005Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Dieter Lilge, Paulus de Lange, Günther Schweier, Martin Schneider, Ursula Rief, Udo Handrich, Johannes Hack, Markus Enders, Gunter Ludwig, Ralph Rudolph
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Patent number: 6908877Abstract: Support within the disclosure of the present application can only be found for the treatment of the dehydrated silica catalyst carrier with a silazane compound and not with a silane compound.Type: GrantFiled: May 23, 2002Date of Patent: June 21, 2005Assignee: LG Chem. Ltd.Inventors: Sang-Young Shin, Choong-Hoon Lee, Eun-Jung Lee, Jae-Seung Oh
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Patent number: 6900278Abstract: Complexes of the formula I, where M is an element of group 6 to 10 of the Period Table of the Elements, preferably Ni, can be used for the polymerization and copolymerization of olefins, for example in suspension polymerisation processes, gas-phase polymerization processes, bulk polymerization processes or emulsion polymerization processes.Type: GrantFiled: July 13, 2001Date of Patent: May 31, 2005Assignee: BASF AktiengesellschaftInventors: Marc Oliver Kristen, Benno Bildstein, Christoph Amort, Michael Malaun
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Patent number: 6900343Abstract: A process for purifying metallocenes in which a sparingly soluble metallocene halide is converted into a readily soluble and readily crystallizable metallocene by replacement of at least one halide ligand by an alternative negatively charged ligand and the metallocene obtained in this way is subsequently purified by crystallization.Type: GrantFiled: November 18, 1999Date of Patent: May 31, 2005Assignee: Basell Polyolefine GmbHInventors: Carsten Bingel, Patrik Müller, Hans-Herbert Brintzinger, Hans-Robert-Hellmuth Damrau
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Patent number: 6894130Abstract: A catalyst for addition polymerization obtained by contacting (A) an organoaluminum compound, (B) a specific boron compound and (C) a solid inorganic compound, and a process for producing an addition polymer characterized by polymerizing an addition-polymerizable monomer in the presence of the catalyst.Type: GrantFiled: December 22, 2000Date of Patent: May 17, 2005Assignee: Sumitomo Chemical Company, LimitedInventors: Wataru Hirahata, Yoshinori Seki
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Patent number: 6884857Abstract: Metal complexes having constrained geometry and a process for preparation thereof, addition polymerization catalysts formed therefrom, processes for preparation of such addition polymerization catalysts, methods of use, and novel polymers formed thereby, including ElPE resins and pseudo-random copolymers, are disclosed and claimed.Type: GrantFiled: April 13, 1998Date of Patent: April 26, 2005Assignee: The Dow Chemical CompanyInventors: James C. Stevens, David R. Wilson
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Patent number: 6878786Abstract: Process for the polymerization of olefins comprising contacting olefins under polymerization conditions in the presence of a catalyst system comprising the product obtained by contacting: (A) at least one transition metal organometallic compound, pyrolidyl bis(?-cyclopentadienyl)methylzirconium being excluded, and (B) an organometallic compound obtained by contacting: (a) a Lewis base having formula (I): ?wherein Ra, Rb, Rc and Rd, equal to or different from each other, are selected from the group consisting of hydrogen, halogen, linear or branched, saturated or unsaturated, C1-C10 alkyl, C6-C20 aryl, C7-C20 arylalkyl and C7-C20 alkylaryl groups; with b) a Lewis acid of formula (II) MtR13??(II) ?wherein Mt is a metal belonging to Group 13 of the Periodic Table of the Elements; R1, equal to or different from each other, are selected from the group consisting of halogen, halogenated C6-C20 aryl and halogenated C7-C20 alkylaryl groups; and (C) optionally an alkylating agent.Type: GrantFiled: March 28, 2003Date of Patent: April 12, 2005Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Simona Guidotti
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Patent number: 6870016Abstract: Olefin polymerization processes using catalyst systems based on metallocenes and olefin, in particular, propylene polymers obtainable thereby. The metallocenes may be represented by the formula: ? wherein M1 preferably is zirconium or hafnium; and R12 is different from hydrogen.Type: GrantFiled: June 29, 2001Date of Patent: March 22, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry J. Burkhardt, James R. Hart, William T. Haygood, Robert T. Li
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Patent number: 6864332Abstract: A process for polymerizing monomers in the gas phase, in fluidized bed reactors is described, where unsaturated, gas phase monomers are fed into the reactors in the presence of a mixture of inert diluents having a composition that allows the dew point to be adjusted, this leading to high production rates under stable operation in a non condensed operation mode.Type: GrantFiled: December 29, 2000Date of Patent: March 8, 2005Assignees: Braskem S.A., Convex InternationalInventors: Antonio Luiz Duarte Braganca, Antonio Luiz Ribeiro de Castro Morschbacker, Enio Rubbo, Cid Neto Miro, Tamara Barlem, Arj Mukherjee
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Patent number: 6852811Abstract: The subject invention provides a process for preparing an olefin polymerization catalyst wherein a calcined and passivated silica support (support precursor) is sequentially contacted with a first solution of a metal complex or of a cocatalyst, and thereafter with a second solution of the other of the metal complex or the cocatalyst, wherein the second solution is provided in an amount such that 100 percent of the pore volume of the support precursor is not exceeded. Optionally, the compatible solvent of the first and/or second solutions is removed. The subject invention further provides a process for polymerizing one or more ?-olefins in the presence of the olefin polymerization catalyst prepared by the process of the invention.Type: GrantFiled: December 6, 1999Date of Patent: February 8, 2005Assignee: The Dow Chemical CompanyInventors: Edmund M. Carnahan, Ian M. Munro, Marc A. Springs
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Patent number: 6844288Abstract: A process for the preparation of ligands for metallocene catalysts used in the production of amorphous polymers of alpha-olefins having high molecular weight and narrow molecular weight distributions, in which the isotactic sequences are more abundant than the syndiotactic ones.Type: GrantFiled: December 4, 2002Date of Patent: January 18, 2005Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Davide Balboni
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Patent number: 6841500Abstract: Catalyst systems useful for olefin polymerization are disclosed. The catalysts include a bimetallic complex that incorporates two linked indenoindolyl groups, each of which is pi-bonded through its cyclopentadienyl ring to one of the metals. Compared with conventional indenoindolyl complexes, the bimetallic complexes of the invention have enhanced ability to give polyolefins with desirably low melt indices. Certain bimetallic indenoindolyl complexes also provide a way to broaden polymer molecular weight distribution and thereby improve processability simply by regulating the amounts of comonomer and activator used in the polymerization.Type: GrantFiled: December 3, 2002Date of Patent: January 11, 2005Assignee: Equistar Chemicals, LPInventors: Sandor Nagy, Barbara M. Tsuie, William J. Sartain
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Patent number: 6841501Abstract: A catalyst system for the polymerization of olefins comprising the product obtained by contacting: (A) at least one transition metal organometallic compound, pyrrolidyl bis(?-cyclopentadienyl)methylzirconium being excluded, and (B) an organometallic compound obtained by contacting: a) a Lewis base having formula (I): ?wherein Ra, Rb, Rc and Rd, equal to or different from each other, are selected from the group consisting of hydrogen, halogen, linear or branched, saturated or unsaturated, C1-C10 alkyl, C6-C20 aryl, C7-C20 arylalkyl and C7-C20 alkylaryl groups; with b) a Lewis acid of formula (II) MtR13??(II) ?wherein Mt is a metal belonging to Group 13 of the Periodic Table of th Elements; R1, equal to or different from each other, are selected from the group consisting of halogen, halogenated C6-C20 aryl and halogenated C7-C20 alkylaryl groups; and (C) optionally an alkylating agent.Type: GrantFiled: March 28, 2003Date of Patent: January 11, 2005Assignee: Basell Poliolefine Italia S.p.A.Inventors: Luigi Resconi, Simona Guidotti
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Patent number: 6838411Abstract: This description addresses a process for the preparation of polyolefins from one or more olefinic monomers comprising combining under polymerization conditions said olefins with the product of combining i) an organometallic catalyst compound and ii) a cocatalyst complex comprising a trialkylsilyl-substituted carbenium cation and a suitable noncoordinating or weakly coordinating anion. These complexes exhibit good solubility in aliphatic solvents such that use in aliphatic solution based polymerization reaction processes can be conducted without the use of aromatic solvents or co-solvents and without the need for slurry means of introduction into chemical reaction environments. High number-average molecular weight polymers and copolymers at high rates of productivity were observed from the use of metallocene catalysts complexes when activated with [(3, 5-(Et3Si)2Ph)3C]+ [(C6F5) B]? and used in a hexane-based solution polymerization.Type: GrantFiled: March 18, 2002Date of Patent: January 4, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventor: Francis C. Rix
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Patent number: 6838563Abstract: Substituted monocyclopentadienyl, monoindenyl, monofluorenyl and heterocyclopentadienyl complexes of chromium, molybdenum or tungsten in which at least one of the substituents on the cyclopentadienyl ring carries a donor function which is bonded rigidly, not exclusively via sp3-hybridized carbon or silicon atoms, and a process for the polymerization of olefins.Type: GrantFiled: June 11, 2002Date of Patent: January 4, 2005Assignee: Basell PolyolefinsInventors: Shahram Mihan, Dieter Lilge, Paulus de Lange, Günther Schweier, Martin Schneider, Ursula Rief, Udo Handrich, Johannes Hack, Markus Enders, Gunter Ludwig, Ralph Rudolph
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Publication number: 20040266963Abstract: A process for the polymerisation of olefins is described involving the use, of a catalyst system comprising a supported transition metal compound and an activator based on an organoborane and an aluminoxane. Preferably the transition metal compound is a metallocene complex. The support is pretreated with an organoaluminium compound and the process is particularly suitable for the gas phase preparation of copolymers of ethylene and alpha-olefins having a molecular weight distribution in the range 2.5-7.0 and a melt strength in the range 3-12 cN.Type: ApplicationFiled: May 18, 2004Publication date: December 30, 2004Inventors: Choon Kooi Chai, Brian Stephen Kimberley, Sergio Mastroianni
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Publication number: 20040260040Abstract: A process for polymerizing 1-butene, optionally with up to 30% by mol of ethylene, propylene or an alpha olefin of formula CH2═CHT wherein T is a C3-C10 alkyl group, in the presence of a catalyst system obtainable by contacting a metallocene compound having C1 symmetry with an alumoxane and/or a compound capable of forming an alkyl metallocene cation.Type: ApplicationFiled: May 11, 2004Publication date: December 23, 2004Inventor: Luigi Resconi
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Patent number: 6833338Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises contacting an organometal compound, an organoaluminum compound, and a treated solid oxide compound.Type: GrantFiled: May 7, 2003Date of Patent: December 21, 2004Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Kathy S. Collins, Gil R. Hawley, Michael D. Jensen, Christopher E. Wittner, Elizabeth A. Benham, Anthony P. Eaton, Joel L. Martin, David C. Rohlfing, Youlu Yu
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Publication number: 20040254316Abstract: The invention relates to a process for the polymerization of olefins using an antistatic agent. In particular, the invention relates to a polymerization process to produce propylene polymers using a supported metallocene catalyst system and an antistatic agent. The antistatic agent may also be contacted with a scavenger prior to polymerization.Type: ApplicationFiled: April 20, 2004Publication date: December 16, 2004Inventors: Randell Wayne Dickey, Jennifer Harting Ward, Thomas Craig Wilson
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Publication number: 20040254310Abstract: A dual olefin polymerization process is disclosed. The process uses a bridged indenoindolyl ligand-containing Group 4 transition metal complex and an activator. It is carried out in multiple stages or in multiple reactors. The same complex and the same activator are used in all stages or reactors. Different polyolefins are made in different stages or reactors by varying the monomer compositions, hydrogen concentrations, or both. The process of the invention produces polyolefins which have broad molecular weight distributions, composition distributions, or both.Type: ApplicationFiled: June 16, 2003Publication date: December 16, 2004Inventors: Linda N. Winslow, Sandor Nagy
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Publication number: 20040254315Abstract: A process for polymerizing 1-butene comprising the step of contacting under polymerization conditions 1-butene and optionally from 0 to 20% by mol of an alpha olefin with a catalyst system obtainable by contacting a bridget metallocene compound of formula (I) wherein R1 and R2 are an hydrocarbon radical A is a carbon atom, a germanium atom or a silicon atom; m is 1, 2; M is a metal of group 4 of the Periodic Table of the Elements; X, is hydrogen, a halogen atom, or a group R, OR, OSO2CF3, OCOR, SR, NR2 or PR2, wherein the substituents R are hydrocarbon radical; L is a moiety of formula (IIa) or (IIb) wherein T is an oxigen (O) or sulphur (S) atom or a CH2 group; and R3 and R4 are hydrogen atoms or hydrocarbon radicals; one or more alumoxanes or compounds able to form an alkylmetallocene cation; and optionally an organo aluminium compound.Type: ApplicationFiled: December 12, 2003Publication date: December 16, 2004Inventor: Luigi Resconi
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Publication number: 20040249092Abstract: A metal complex useful as a component of a catalyst composition for addition polymerizations comprising an anionic, polycyclic, fused ring ligand system containing at least 4 fused rings, at least one such ring comprising at least one heteroatom, said ligand being bonded to M by means of delocalized &pgr;-electrons and an addition polymerization process using the same.Type: ApplicationFiled: May 27, 2004Publication date: December 9, 2004Inventors: Shaoguang Feng, Ravi B. Shankar, Francis J. Timmers
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Patent number: 6825294Abstract: Provided are catalysts for styrene polymerization capable of efficiently and inexpensively producing styrenic polymers having a syndiotactic structure; and a method for producing styrenic polymers. The catalysts comprise (A) a transition metal compound, (B) an oxygen-containing compound and/or a compound capable of reacting with a transition metal compound to form an ionic complex, (C) a specific metal compound, preferably a specific organoaluminium compound of a general formula: ((R1)3—CO)n-Al—(R2)3−n wherein R1 represents an aliphatic hydrocarbon group having from 1 to 30 carbon atoms, an aromatic hydrocarbon group having from 6 to 30 carbon atoms or the like; R2 represents a hydrocarbon group; n is 1 or 2, and optionally (D) an alkylating agent. In the method for producing styrenic polymers, used is the catalyst.Type: GrantFiled: September 28, 2000Date of Patent: November 30, 2004Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Nobuhiro Yabunouchi, Norio Tomotsu
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Patent number: 6818712Abstract: Supported ionic metallocene catalyst systems may be prepared by a method comprising the following steps: i) mixing together in a suitable solvent: a) an organometallic compound, and b) an ionic activator comprising a cation and an anion; ii) addition of the mixture from step (i) to a support material; iii) addition of a metallocene complex in a suitable solvent; iv) further addition of an organometallic compound in a suitable solvent; and v) removal of the solvent. The preferred supported catalysts comprise a constrained geometry metallocene complex for example (t-butylamido)(tetramethyl-→5-cyclopentadienyl) dimethyl silanetitanium-→4-1,3-pentadiene and are particularly suitable for the polymerisation of ethylene or the copolymerisation of ethylene and &agr;-olefins having from 3 to 10 carbons in the gas phase.Type: GrantFiled: January 16, 2003Date of Patent: November 16, 2004Assignee: BP Chemicals LimitedInventors: Christel Marie-Claude Mealares, Michael John Taylor
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Patent number: 6812182Abstract: Surprisingly stable olefin polymerization co-catalysts formed from hydroxyaluminoxanes are revealed. In one embodiment of the invention, a solid composition of matter is formed from a hydroxyaluminoxane and a treating agent, whereby the rate of OH-decay for the solid composition is reduced as compared to that of the hydroxyaluminoxane. Processes for converting a hydroxyaluminoxane into a such a solid composition of matter, supported catalysts formed from such solid compositions of matter, as well as methods of their use, are described.Type: GrantFiled: September 5, 2001Date of Patent: November 2, 2004Assignee: Albemarle CorporationInventors: Feng-Jung Wu, Christopher G. Bauch, Larry S. Simeral, Jamie R. Strickler
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Patent number: 6812183Abstract: Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a triple-decker bimetallic complex. The complex includes two Group 3-10 transition metals and a delocalized dianionic ligand that is pi-bonded to each of the metals. The behavior of the catalysts can be modified by choice of each metal, by the choice of the dianionic ligand, or by choice of the ancillary ligands. The invention provides a new way to make a large variety of catalyst systems.Type: GrantFiled: April 23, 2003Date of Patent: November 2, 2004Assignee: Equistar Chemicals, LPInventors: Sandor Nagy, Joel A. Mutchler
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Patent number: 6812304Abstract: A process for preparing premixed supported boraaryl catalysts having improved shelf life is provided. The process comprises supporting an organometallic compound comprising a group 3-10 transition metal or lanthanide metal and at least one boraaryl ligand an inorganic support which has been chemically and thermally dehydroxylated to remove all hydroxyl from the surface of the support; contacting with an organoaluminum compound utilizing an incipient wetness procedure wherein 90 to 150 percent of the catalyst pore volume is filled with a hydrocarbon solution containing the organoaluminum and provide a molar ratio of aluminum to transition/lanthanide metal of 0.5:1 to 50:1; and recovering the premixed catalyst powder.Type: GrantFiled: February 21, 2001Date of Patent: November 2, 2004Assignee: Equistar Chemicals, LPInventors: Craig C. Meverden, Michael W. Lynch
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Patent number: 6809168Abstract: The co-polymerization reaction of one or more olefin monomers, such as propylene, with &agr;,&ohgr;-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of &agr;,&ohgr;-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115° C. to 135° C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations.Type: GrantFiled: April 2, 2003Date of Patent: October 26, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Pawan Kumar Agarwal, Weiqing Weng, Aspy K. Mehta, Armenag H. Dekmezian, Main Chang, Rajan K. Chudgar, Olivier Jean Georjon, Chon-Yie Lin, Michael C. Chen, Galen C. Richeson, Palanisamy Arjunan
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Publication number: 20040210013Abstract: The present invention relates to propylene based copolymers and to processes for producing propylene based copolymers, particularly propylene-ethylene copolymers. These unique copolymers are prepared using metallocene catalysts.Type: ApplicationFiled: March 18, 2004Publication date: October 21, 2004Inventor: Patrick Brant
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Patent number: 6806329Abstract: Novel ethylene styrene interpolymers having atactic ES repeating units and an alternating structure substantially higher than that predicted using Bernoullian statistics may be prepared in the presence of a transition metal phosphinimine compound and an activator.Type: GrantFiled: November 7, 2003Date of Patent: October 19, 2004Assignee: Nova Chemicals (International) S.A.Inventors: Qinyan Wang, Patrick Lam, Garry Takashi Yamashita
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Patent number: 6806220Abstract: 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.Type: GrantFiled: June 27, 2002Date of Patent: October 19, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Donna Jean Crowther, Bernard Jean Folie
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Patent number: 6806327Abstract: Metal complexes comprising a polycyclic, fused ring ligand or inertly substituted derivative thereof comprising at least: (1) a cyclopentadienyl ring, (2) a 7 membered polyatomic ring, and (3) one or more aromatic ring systems, with the proviso that said 7 membered ring (2), is fused to both the cyclopentadienyl ring (1), and said one or more aromatic ring systems (3), and substituted in at least one ring position with a substituent group resulting in sp2 hybridization on the ring atom bonded thereto; polymerization catalysts; and olefin polymerization processes using the same are disclosed.Type: GrantFiled: April 16, 2002Date of Patent: October 19, 2004Assignee: Dow Global Technologies Inc.Inventors: Richard E. Campbell, Jr., Jerzy Klosin, Ravi B. Shankar, Francis J. Timmers, Robert K. Rosen, Shaoguang Feng
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Patent number: 6806326Abstract: Metal complexes having constrained geometry and a process for preparation thereof, addition polymerization catalysts formed therefrom, processes for preparation of such addition polymerization catalysts, methods of use, and novel polymers formed thereby, including EIPE resins and pseudo-random copolymers, are disclosed and claimed.Type: GrantFiled: November 6, 2001Date of Patent: October 19, 2004Assignee: The Dow Chemical CompanyInventors: James C. Stevens, Robert K. Rosen, Peter N. Nickias, David R. Wilson
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Publication number: 20040204552Abstract: 1-butene based polymer satisfying following requirements (1″) to (4″) provides formed product having low stickiness, superior flexibility and transparency.Type: ApplicationFiled: April 29, 2004Publication date: October 14, 2004Applicant: IDEMITSU PETROCHEMICAL CO., LTD.Inventors: Yutaka Minami, Masami Kanamaru, Koji Kakigami, Hideo Funabashi
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Publication number: 20040198932Abstract: A process for polymerizing I-butene comprising the step of contacting under polymerization “ conditions 1-butene and optionally from 0 to 20% by mol of an alpha olefin with a catalyst system obtainable by contacting a bridged metallocene compound of formula (I) wherein R1 and R2 are an hydrocarbon radical A is a carbon atom, a germanium atom or a silicon atom; m is 1, 2; M is a metal of group 4 of the Periodic Table of the Elements; X, is hydrogen, a halogen atom, or a group R, OR, OS02CF2, OCOR, SR, NR2 or PR2, wherein the substituents R are hydrocarbon radical; L is a moiety of formula (IIa), (IIb), or (IIc) wherein T is an oxygen (0) or sulphur (S) atom or a CH2 group; and R3, R4, R5, R6, R7, R8 are hydrogen or hydrocarbon radicals; one or more alumoxanes or compounds able to form an alkylmetallocene cation; and optionally an organo aluminum compound.Type: ApplicationFiled: December 2, 2003Publication date: October 7, 2004Inventor: Luigi Resconi
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Publication number: 20040198590Abstract: The invention relates to a metallocene catalyst in which the metal is coordinated by any &eegr;5 cyclopentadienyl ligand characterised in that said ligand is directly or indirectly substituted by a pendant siloxy or germyloxy group which contains an olefinic residue.Type: ApplicationFiled: April 23, 2004Publication date: October 7, 2004Inventors: Melanie Aubert, Carl-Eric Wilen
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Patent number: 6800705Abstract: The present invention provides to a catalytic system, its method for preparation, and a method for preparation of a copolymer of ethylene and a conjugated diene, which uses this catalytic system. A catalytic system according to the invention comprises: an organometallic complex compound, which is represented by one formula A or B: in which Ln represents a metal of a lanthanide, the atomic number of which is between 57 and 71; X represents a halogen, which can be chlorine, fluorine, bromine or iodine; and Cp1 and Cp2 each comprise a cyclopentadienyl or fluorenyl group, which is or is not substituted, and P is a bridge corresponding to the formula MR2, in which M is an element of column IVA of Mendeleev's periodic classification, and R is an alkyl group comprising from 1 to 20 atoms of carbon; and a co-catalyst selected from among a magnesium alkyl, a lithium alkyl, an aluminium alkyl, or a Grignard's reagent, and mixtures thereof.Type: GrantFiled: May 23, 2002Date of Patent: October 5, 2004Assignee: Michelin Recherche et Technique S.A.Inventors: Fanny Barbotin, Cristophe Boisson, Roger Spitz
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Patent number: 6800704Abstract: The invention comprises an olefin polymerization process comprising contacting ethylene alone or with one or more olefinically unsaturated comonomers with a Group 3-6 metallocene catalyst compound comprising one &pgr;-bonded ring having a C3 or greater hydrocarbyl, hydrocarbylsilyl or hydrocarbylgermyl substituent said substituent bonded to the ring through a primary carbon atom; and, where the compound contains two &pgr;-bonded rings, the total number of substituents on the rings is equal to a number from 3 to 10, said rings being asymmetrically substituted where the number of substituents is 3 or 4. The invention process is particularly suitable for preparing ethylene copolymers having an MIR less than about 35, while retaining narrow CD even at high comonomer incorporation rates, and with certain embodiments providing ethylene copolymers having improved melt strength with the low MIR.Type: GrantFiled: April 22, 2002Date of Patent: October 5, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Joseph C. Floyd, Moses Olukayode Jejelowo, Donna Jean Crowther, George Alan Vaughan, Ching Tai Lue
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Publication number: 20040192541Abstract: The invention relates to a catalyst component and a catalyst system for the preparation of high molecular weight ethylene or alpha-olefin homopolymers, ethylene-alpha-olefin copolymers, terpolymers or tetrapolymers, in a polymerization process, which is expediently effected in solution, at elevated temperature, preferably at least 80 DEG C. The catalyst system comprises a group 4-6 metal, preferably group 4 metal, a cyclic ligand (such as a cyclopentadienyl-type ligand), which forms a delocalized pi-bond with the metal M, a monohapto bonded 1,3-diaza-2-imino heterocyclic ligand (such as an iminoimidazolidine-type ligand) and anionic ligands and a catalyst activator coupound.Type: ApplicationFiled: March 23, 2004Publication date: September 30, 2004Inventor: Winfried Peter Kretschmer
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Publication number: 20040186009Abstract: A catlyst component obtained by a process comprising contacting (a), (b) and (c) described below, a catalyst for addition polymerization using the catalyst component, and a process for producing an addition polymer with the catalyst for addition polymerization:Type: ApplicationFiled: December 23, 2003Publication date: September 23, 2004Inventors: Kazuo Takaoki, Yoshiya Okado
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Publication number: 20040181017Abstract: Single-site catalyst systems useful for polymerizing olefins are disclosed. The catalyst systems comprise an organometallic complex and an activator. The complex includes a Group 3-10 transition metal, M, and at least one indenoindolyl ligand that is pi-bonded to M. The activator is a reaction product of an alkylaluminum compound and an organoboronic acid. Catalyst systems of the invention significantly outperform known catalyst-systems that employ a metallocene complex and similar aluminoboronate activators.Type: ApplicationFiled: March 23, 2004Publication date: September 16, 2004Applicant: EQUISTAR CHEMICALS, LPInventors: Michael W. Lynch, Craig C. Meverden, Sandor Nagy, Karen L. Neal-Hawkins
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Patent number: 6790919Abstract: The present invention describes catalysts for atom transfer radical polymerization processes. Specifically, a hybrid catalyst system comprising transition metal complexes held in close conjunction with a solid support and of a soluble ligand, or soluble transition metal complex or desorbed catalyst. The hybrid catalyst system may be used in a controlled polymerization process of radically (co)polymerizable monomers in the presence of a system comprising an initiator comprising one or more radically transferable atom(s) or group(s). The catalyst may include a transition metal, one or more counterions, a ligand attached to a solid support, and a soluble ligand. The hybrid catalyst may also be comprised of an attached transition metal complex, and a soluble transition metal complex.Type: GrantFiled: October 5, 2001Date of Patent: September 14, 2004Assignee: Carnegie Mellon UniversityInventors: Krzysztof Matyjaszewski, Sung Chul Hong