Carbon Bonded Directly To The Metal Patents (Class 556/58)
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Patent number: 6992204Abstract: The invention relates to a method for producing racemic metallocene complexes by reacting bridged or non-bridged transition metal complexes with cyclopentadienyl derivatives of alkaline or alkaline earth metals and optionally, subsequently substituting the phenolate ligands.Type: GrantFiled: June 28, 2001Date of Patent: January 31, 2006Assignee: Basell Polyolefine GmbHInventors: Robert Damrau, Patrik Müller, Eva Royo, Hans-Herbert Brintzinger
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Patent number: 6984743Abstract: The present invention relates to a process for preparing a metallocene, which comprises reacting a ligand starting compound with an adduct of the formula (I), M1XnDa ??(I) where M1 is a metal of group III, IV, V or VI of the Periodic Table of the Elements or an element of the lanthanide or actinide series, preferably titanium, zirconium or hafnium, particularly preferably zirconium, X are identical or different and are each halogen, C1–C10-alkoxy, C6–C10-aryloxy, C1–C10-alkylsulfonate such as mesylate, triflate, nonaflate, C6–C10-arylsulfonate such as tosylate, benzenesulfonate, C1–C10-alkylcarboxylate such as acetate, formate, oxalate or 1,3-dicarbonylate such as acetylacetonate or fluorinated 1,3-dicarbonylate, in particular chlorine, bromine, particularly preferably chlorine, n is an integer and is 2,3,4,5 or 6 and corresponds to the oxidation number of the metal M1, a is an integer or fraction and 0<a?4 and a is preferably in the range from 0.5 to 2.5 and is in particular 1, 1.Type: GrantFiled: September 3, 1998Date of Patent: January 10, 2006Assignee: Basell Polyolefine GmbHInventors: Carsten Bingel, Berthold Schiemenz, Markus Göres
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Patent number: 6967256Abstract: One aspect of the present invention relates to methods of preparing enedialkylidyne complexes, enediynes, and alkyne metathesis catalysts, as well as methods of catalyzing alkyne metathesis reactions. The present invention also relates to methods of activating enedialkylidyne complexes for metathesis. The present invention also relates to enedialkylidyne complexes.Type: GrantFiled: September 19, 2003Date of Patent: November 22, 2005Assignee: Massachusetts Institute of TechnologyInventors: Christopher C. Cummins, James M. Blackwell
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Patent number: 6933400Abstract: Complexes of the formulae I a to d, where M is an element of groups 6 to 10 of the Periodic Table of the Elements, preferably Ni, can be used for the polymerization and copolymerization of olefins, for example in suspension polymerization processes, gas-phase polymerization processes, bulk polymerization processes and emulsion polymerization processes.Type: GrantFiled: February 7, 2002Date of Patent: August 23, 2005Assignee: BASF AktiengesellschaftInventors: Marc Oliver Kristen, Benno Bildstein, Alexander Krajete
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Patent number: 6930193Abstract: An isoreticular metal-organic framework (IRMOF) and method for systematically forming the same. The method comprises the steps of dissolving at least one source of metal cations and at least one organic linking compound in a solvent to form a solution; and crystallizing the solution under predetermined conditions to form a predetermined IRMOF. At least one of functionality, dimension, pore size and free volume of the IRMOF is substantially determined by the organic linking compound.Type: GrantFiled: April 30, 2002Date of Patent: August 16, 2005Assignee: The Regents of the University of MichiganInventors: Omar M. Yaghi, Mohamed Eddaoudi, Hailian Li, Jaheon Kim, Nathaniel Rosi
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Patent number: 6903229Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization. The metallocene compositions may be represented by the formula: wherein R3 are identical or different and are each a halogen atom, a C1-C10 alkyl group which may be halogenated, a C6-C10 aryl group which may be halogenated, a C2-C10 alkenyl group, a C7-C40-arylalkyl group, a C7-C40 alkylaryl group, a C8-C40 arylalkenyl group, a —NR?2, —SR?, —OR?, —OSiR?3 or —PR?2 radical, wherein R? is one of a halogen atom, a C1-C10 alkyl group, or a C6-C10 aryl group, and R9 and R11 are identical or different and are a Group 14 radical having from 1 to 20 carbon atoms or are each primary, secondary or tertiary butyl groups, aryl groups, isopropyl groups, fluoroalkyl groups, trialkyl silyl groups, or other groups of similar size.Type: GrantFiled: January 31, 2002Date of Patent: June 7, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry J. Burkhardt, Udo M. Stehling, James R. Hart, William T. Haygood, Jr., Robert T. Li, James C. Vizzini, Matthew C. Kuchta
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Patent number: 6888017Abstract: This invention relates to bridged indenyl metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization. The bridge may be represented by the formula: wherein: R17 to R24 are identical or different, and are one of a hydrogen atom, a C1-C10 alkyl group, a C1-C10 alkoxy group, a C6-C10 aryl group, a C6-C10 aryloxy group, a C2-C10 alkenyl group, a C7-C40 arylalkyl group, a C7-C40 alkylaryl group, a C8-C40 arylalkenyl group, or a halogen atom, or together are a conjugated diene which is optionally substituted with one or more hydrocarbyl, tri(hydrocarbyl)silyl groups or hydrocarbyl, tri(hydrocarbyl)silylhydrocarbyl groups, said diene having up to 30 atoms not counting hydrogen; or two or more adjacent radicals R17 to R24, including R20 and R21, together with the atoms connecting them form one or more rings; and M2 is carbon, silicon, germanium or tin.Type: GrantFiled: January 31, 2002Date of Patent: May 3, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Matthew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr., Terry J. Burkhardt
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Patent number: 6888002Abstract: The invention relates to novel transition metal complexes containing at least one diaminocarbene ligand, to processes for preparing these transition metal complexes and to their use as catalysts in organic reactions.Type: GrantFiled: September 30, 2002Date of Patent: May 3, 2005Assignee: Bayer AktiengesellschaftInventors: Wolfgang A. Herrmann, Karin Denk
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Patent number: 6872844Abstract: A complex of a Group 3-10 metal, said complex comprising a cyclic group containing delocalized electrons, a bridging group connecting he metal with the cyclic group, and acetylene or a derivative thereof.Type: GrantFiled: February 8, 2002Date of Patent: March 29, 2005Assignee: The Dow Chemical CompanyInventor: Alexander Vogel
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Patent number: 6872843Abstract: The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use of the same for the polymerisation of olefins.Type: GrantFiled: October 17, 2001Date of Patent: March 29, 2005Assignee: Basell Polyolefine GmbHInventors: Jörg Schottek, Jörg Schulte
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Patent number: 6855783Abstract: Supported metallocene catalysts and processes for the use of such catalysts in isotactic polymerization of a C3+ ethylenically unsaturated monomer. The supported catalysts comprise a particulate silica support, an alkyl alumoxane component, and a metallocene catalyst component. The support has an average particle size of 10-50 microns, a surface area of 200-800 m2/g and a pore volume of 0.9-2.1 milliliters per gram (ml/g). Alumoxane is incorporated onto the support to provide a weight ratio of alumoxane to silica of at least 0.8:1.Type: GrantFiled: April 11, 2003Date of Patent: February 15, 2005Assignee: Fina Technology, Inc.Inventors: William J. Gauthier, Margaret Kerr, Jun Tian, David J. Rauscher, Constance Hayworth Patrick, Shady Henry
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Patent number: 6841638Abstract: The invention relates to an ionic compound corresponding to the formula [R1X1(Z1)—Q?—X2(Z2)—R2]m Mm+ in which Mm+ is a cation of valency m, each of the groups Xi is S?Z3, S?Z4, P—R3 or P—R4; Q is N, CR5, CCN or CSO2R5, each of the groups Zi is ?O, ?NC?N, ?C(C?N)2, ?NS (?Z)2R6 or ?C[S(?Z)2R6]2, each of the groups Ri, is Y, YO—, YS—, Y2N— or F, Y represents a monovalent organic radical or alternatively Y is a repeating unit of a polymeric frame. The compounds are useful for producing ion conducting materials or electrolytes, as catalysts and for doping polymers.Type: GrantFiled: February 14, 2003Date of Patent: January 11, 2005Assignees: ACEP Inc., Universite de Montreal, Centre National de la Recherche Scientifique, Institute of Organic Chemistry National Academy of Sciences of UkraineInventors: Michel Armand, Christophe Michot, Yurii Yagupolskii, Lev Yagupolskii, Andrej Bezdudny, Natalya Kondratenko
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Patent number: 6835835Abstract: The invention provides a process for forming an organometallic cyclometallated complex comprising the step of reacting, in an aprotic organic solvent, an organozinc complex of a desired organic ligand with a metal complex of an element of atomic number 74 to 79 bearing a leaving group.Type: GrantFiled: December 5, 2003Date of Patent: December 28, 2004Assignee: Eastman Kodak CompanyInventor: Shouquan Huo
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Patent number: 6833464Abstract: A composition of matter comprising a compound having the general formula: [CpM(ArF)Y]p wherein Cp is a substituted or unsubstituted cyclopentadienyl ligand or cyclopentadienyl-type bulky ligand characterized by one or more open, acylic or fused ring systems comprised of atoms selected from Groups 13-16 of the Periodic Table of Elements and wherein the ligands can include a heteroatom; M is a metal selected from Groups 3-9 of the Periodic Table of Elements; ArF is a fluorinated aryl group; Y is a hydrocarbyl group that can contain a heteroatom; and p is 1 or 2. The invention also contemplates a method of producing the compound and its use in the oligomerization and polymerization of alpha olefins.Type: GrantFiled: May 14, 2003Date of Patent: December 21, 2004Assignee: The Texas A&M University SystemInventors: Francois Gabbai, Mani Ganesan, Dave S. Pope, Jimmy D. Brown, Donald L. Wharry, Paul K. Hurlburt
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Patent number: 6831187Abstract: The present invention relates to novel hetero-multimetallic catalyst precursors and catalysts for the polymerization of olefins.Type: GrantFiled: December 18, 2001Date of Patent: December 14, 2004Assignee: Univation Technologies, LLCInventor: Rex Eugene Murray
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Patent number: 6824824Abstract: The present invention is a method for recycling an organometallic compound for MOCVD comprising extracting an unreacted organometallic compound from a used raw material which has undergone a thin film production process, wherein the unreacted organometallic compound is extracted after the used raw material is subjected to a reforming treatment. The method for reforming the used raw material is either a method for contacting the used raw material with a hydrogenation catalyst or a reducing agent or a method for contacting the used raw material with either a halogen, a hydrogen halide, an inorganic acid, an alkene, or a diene. In this case, an organometallic compound of higher purity can be obtained through this recycling method by contacting the used raw material with a decoloring agent comprising activated carbon, silica, or activated clay.Type: GrantFiled: March 24, 2003Date of Patent: November 30, 2004Assignee: Tanaka Kikinzoku Kogyo, K.K.Inventor: Masayuki Saito
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Patent number: 6825371Abstract: The present invention relates to a catalyst for polymerization of &agr;-olefin, which comprises: an essential component (A) of a transition metal compound, an essential component (B) of an ion exchangeable layer compound except for silicate, or an inorganic silicate, and an optional component (C) of an organoaluminum compound, said component (A) being represented by the general formula (I):Type: GrantFiled: December 3, 2002Date of Patent: November 30, 2004Assignee: Mitsubishi Chemical CorporationInventors: Toshihiko Sugano, Masami Kashimoto, Taku Kato
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Patent number: 6825372Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization. The metallocene compositions may be represented by the formula: wherein R9 and R11 are identical or different and are a Group 14 radical having from 1 to 20 carbon atoms or are each primary, secondary or tertiary butyl groups, aryl groups, isopropyl groups, fluoroalkyl groups, trialkyl silyl groups, or other groups of similar size.Type: GrantFiled: January 31, 2002Date of Patent: November 30, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart
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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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Publication number: 20040204310Abstract: Supported metallocene catalysts and processes for the use of such catalysts in isotactic polymerization of a C3+ethylenically unsaturated monomer. The supported catalysts comprise a particulate silica support, an alkyl alumoxane component, and a metallocene catalyst component. The support has an average particle size of 10-50 microns, a surface area of 200-800 m2/g and a pore volume of 0.9-2.1 milliliters per gram (ml/g). Alumoxane is incorporated onto the support to provide a weight ratio of alumoxane to silica of at least 0.8:1.Type: ApplicationFiled: April 11, 2003Publication date: October 14, 2004Inventors: William J. Gauthier, Margaret Kerr, Jun Tian, David J. Rauscher, Constance Hayworth Patrick, Shady Henry
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Patent number: 6800701Abstract: Compounds and metal complexes comprising a polycyclic, fused ring ligand or inertly substituted derivative thereof having up to 60 atoms other than hydrogen, said ligand comprising at least: (1) a cyclopentadienyl ring, (2) a 6, 7, or 8 membered ring other than a 6-carbon aromatic ring, and (3) an aromatic ring, with the proviso that said 6, 7, or 8 membered ring (2), is fused to both the cyclopentadienyl ring (1), and the aromatic ring (3), polymerization catalysts, a process to prepare the novel compounds and complexes, and olefin polymerization processes using the same are disclosed.Type: GrantFiled: May 13, 2003Date of Patent: October 5, 2004Assignee: Dow Global Technologies Inc.Inventors: Richard E. Campbell, Jr., Jerzy Klosin, Ravi B. Shankar, Francis J. Timmers, Robert K. Rosen
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Patent number: 6800707Abstract: Use of metallocene catalyst component for the preparation of a syndiotactic polyolefin having a monomer length of up to C10, which component has the general formula: R″(CpR1R2)(Cp′R1′R2′)MQ2 wherein Cp is a cyclopentadienyl ring; Cp′ is a 3,6 disubstituted fluorenyl ring; R1 and R2 are each independently H or a substituent on the cyclopentadienyl ring which is proximal to the bridge, which proximal substituent is linear hydrocarbyl of from 1 to 20 carbon atoms or a group of the formula XR*3 containing up to 7 carbon atoms in which X is chosen from Group IVA, and R* is the same or different and chosen from hydrogen or alkyl; R1′ and R2′ are each independently substituent groups on the fluorenyl ring, each of which is a group of the formula AR′″3, in which A is chosen from Group IVA, and each R′″ is independently hydrogen or a hydrocarbyl having 1 to 20 carbon atoms; M is a Group IVB transition metal or vanadium; each Q is hydrocarbyl having 1 toType: GrantFiled: December 4, 2003Date of Patent: October 5, 2004Assignee: Fina Technology, Inc.Inventor: Abbas Razavi
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Patent number: 6774253Abstract: A new process is disclosed, particularly simple, convenient and practical, for the direct synthesis of titanium complexes of the formula (I): (D)(ZR1m)n(A)TiLpXq, wherein (ZR1m)n is a divalent group bridging D and A; D is a delocalized &pgr;-bonded moiety, which is bound in an &eegr;5 bonding mode to Ti, and is preferably a Cp moiety; A is —O—, —S—, —N(R2)— or —P(R2)—, wherein R2 is hydrogen, alkyl, cycloalayl, aryl, alkylaryl or arylalkl; L are monoanionic sigma ligands selected from alkyl, cycloalkyl, aryl, alkylaryl and arylalkyl groups; m is 1 or 2; n is 1-3; p is 1 or 2, q is 0 or 1 and p+q=2; said process comprises reacting a ligand of formula (H—D)(ZR1m)n(A—H) with about 1 molar equivalent of TiX4 in the presence of about (2+p) molar equivalent of LjB or LMgX wherein X is halogen or —OR′, B is an alkaline or alkaline-earth metal, and j is 1 or 2.Type: GrantFiled: February 2, 2001Date of Patent: August 10, 2004Assignee: Basell Polyolefine GmbHInventor: Luigi Resconi
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Patent number: 6753436Abstract: The invention concerns olefin polymerization catalyst component comprising an organometallic compound of general formula I wherein: M is a transition metal of groups 3, 4-10, lanthanide or actinide of the periodic table of the elements; each R is independently a structural bridge rigidly connecting two ligands L1, L2 and L3 and is constituted by 1 to 4 chain atoms selected from carbon, silicon, germanium, oxygen, boron; m, n and o are 0 or 1, with the proviso that m+n+o is 2 or 3; L1 is a ligand of the cyclopentadienyl type or is isolobal to cyclopentadienyl, L2 is a ligand of the cyclopentadienyl type or is isolobal to cyclopentadienyl, or a monovalent anionic ligand selected from the group consisting of N, P, B when m+n=2, it is selected from the group consisting of NR1, PR1, BR1, O and S when m+n=1; L3 is a monovalent anionic ligand selected from the group consisting of N, P, B when n+o=2, it is selected from the group consisting of NR1, PR1Type: GrantFiled: January 18, 2002Date of Patent: June 22, 2004Assignee: Repsol Quimica, S.A.Inventors: Pascual Royo Gracia, Jesus Cano Sierra, Miguel Angel Flores De Paco, Begoña Peña Garcia
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Patent number: 6673953Abstract: The invention comprises a chemical composition with the structure shown below. The composition can be polymerized or pyrolyzed, forming transition metal nanoparticles homogeneously dispersed in a thermoset or carbon composition. The size of the nanoparticles can be controlled by manipulating the number and arrangement of functional groups in the composition and by changing the conditions of the polymerization or pyrolysis. The resulting thermosets and carbon compositions have useful magnetic, electric, mechanical, catalytic and/or optical properties.Type: GrantFiled: December 10, 2001Date of Patent: January 6, 2004Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, Joseph Perrin, Syed B. Qadri
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Publication number: 20030191334Abstract: The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to their use for the polymerization of olefins.Type: ApplicationFiled: December 2, 2002Publication date: October 9, 2003Inventors: Jorg Schottek, Gerhard Erker, Klaus Kunz, Steve Doring
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Patent number: 6627764Abstract: Ligand systems containing indenyl structures, transition metal compounds of the metallocene type and catalyst systems comprising such transition metal compounds are described. The novel transition metal compounds can be used in the polymerization of olefins, in particular to give polyolefins having a low molar mass.Type: GrantFiled: July 11, 2000Date of Patent: September 30, 2003Assignee: Basell Polyolefine GmbHInventors: Jörg Schottek, Diana Schauer, Roland Kratzer
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Publication number: 20030175596Abstract: The present invention relates to a non-aqueous electrolyte additive for improving safety and a lithium secondary battery comprising the same, and more particularly to a non-aqueous electrolyte additive that can improve cycle life and safety properties of a lithium ion secondary battery.Type: ApplicationFiled: December 31, 2002Publication date: September 18, 2003Inventors: Hong-Kyu Park, Jeh-Won Choi, Yeon-hee Lee, Young-Tack An, Hyeong-Jin Kim
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Publication number: 20030175595Abstract: The present invention relates to a non-aqueous electrolyte additive for improving safety and a lithium secondary battery comprising the same, and more particularly to a non-aqueous electrolyte additive that can improve cycle life and safety properties of a lithium ion secondary battery.Type: ApplicationFiled: December 31, 2002Publication date: September 18, 2003Inventors: Hong-Kyu Park, Jeh-Won Choi, Yeon-Hee Lee, Young-Tack An, Hyeong-Jin Kim
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Patent number: 6613921Abstract: Compounds and metal complexes comprising a polycyclic, fused ring ligand or inertly substituted derivative thereof having up to 60 atoms other than hydrogen, said ligand comprising at least: (1) a cyclopentadienyl ring, (2) a 6, 7, or 8 membered ring other than a 6-carbon aromatic ring, and (3) an aromatic ring, with the proviso that said 6, 7, or 8 membered ring (2), is fused to both the cyclopentadienyl ring (1), and the aromatic ring (3), polymerization catalysts, a process to prepare the novel compounds and complexes, and olefin polymerization processes using the same are disclosed.Type: GrantFiled: June 12, 2001Date of Patent: September 2, 2003Assignee: Dow Global Technologies Inc.Inventors: Richard E. Campbell, Jr., Jerzy Klosin, Ravi B. Shankar, Francis J. Timmers, Robert K. Rosen
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Patent number: 6610873Abstract: The present invention is a method for recycling an organometallic compound for MOCVD comprising extracting an unreacted organometallic compound from a used raw material which has undergone a thin film production process, wherein the unreacted organometallic compound is extracted after the used raw material is subjected to a reforming treatment. The method for reforming the used raw material is either a method for contacting the used raw material with a hydrogenation catalyst or a reducing agent or a method for contacting the used raw material with either a halogen, a hydrogen halide, an inorganic acid, an alkene, or a diene. In this case, an organometallic compound of higher purity can be obtained through this recycling method by contacting the used raw material with a decoloring agent comprising activated carbon, silica, or activated clay.Type: GrantFiled: April 3, 2001Date of Patent: August 26, 2003Assignee: Tanaka Kikinzoku Kogyo K.K.Inventor: Masayuki Saito
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Publication number: 20030158355Abstract: A catalyst obtained by contacting a transition metal compound (A) of the general formula [1]:Type: ApplicationFiled: December 20, 2002Publication date: August 21, 2003Inventors: Masanobu Hidai, Masaaki Nabika
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Patent number: 6583304Abstract: There are disclosed new metallocene compounds and catalysts for olefin polymerization. The metallocene compound is a complex of transition metal and cyclopentadienyl-type ligands substituted with silacycloalkyl group. The metallocene catalyst comprises the above metallocene compound and at least one activator such as aluminoxanes, aromatic boron compounds substituted with fluoride, and modified clays. The metallocene catalyst can be used for polymerization of olefin in liquid phase, slurry phase or gas phase process.Type: GrantFiled: February 16, 2001Date of Patent: June 24, 2003Assignee: Daelim Industrial Co., Ltd.Inventors: Sah Mun Hong, Byoung Keel Sohn, Sung Woo Kang, Tae Soo Hwang, Young Jae Jun, Hyun Ki Youn
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Patent number: 6566544Abstract: This invention is directed to novel catalysts the structure and activity of which can be controlled to produce a wide range of alpha olefin polymers and co-polymers, and preferably for the production of stereoblock poly alpha olefins comprising a wide range of preselected amorphous and crystalline segments for precise control of the physical properties thereof, principally elastomeric thermoplastic properties. More specifically, this invention is directed to novel catalysts and catalysts systems for producing stereoblock polypropylene comprising alternating isotactic and atactic diastereosequences, which result in a wide range of elastomeric properties. The amount and numbers of crystalline sections, the isotactic pentad content, the number and length of intermediate atactic chains and overall molecular weight are all controllable by the steric structure of the catalysts and the process conditions.Type: GrantFiled: July 7, 1998Date of Patent: May 20, 2003Assignee: The Board of Trustees of the Leland Stanford Jr. UniversityInventors: Robert M. Waymouth, Elisabeth Hauptman, Geoffrey W. Coates
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Publication number: 20030092925Abstract: Metallocene having two cyclic dienyl groups connected by a single carbon having an aryl substituent and a terminally unsaturated hydrocarbyl substituent, olefin polymerization catalyst systems prepared therefrom, and the use of such catalyst systems are disclosed.Type: ApplicationFiled: September 23, 2002Publication date: May 15, 2003Applicant: PHILLIPS PETROLEUM COMPANYInventors: M. Bruce Welch, Syriac J. Palackal, Bryan E. Hauger, David W. Dockter, Alexander Koppl, Helmut G. Alt
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Publication number: 20030055267Abstract: 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: ApplicationFiled: June 11, 2002Publication date: March 20, 2003Inventors: Shahram Mihan, Dieter Lilge, Paulus de Lange, Gunther Schweier, Martin Schneider, Ursula Rief, Udo Handrich, Johannes Hack, Markus Enders, Gunter Ludwig, Ralph Rudolph
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Publication number: 20030036658Abstract: 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: ApplicationFiled: June 11, 2002Publication date: February 20, 2003Inventors: Shahram Mihan, Dieter Lilge, Paulus de Lange, Gunther Schweier, Martin Schneider, Ursula Rief, Udo Handrich, Johannes Hack, Markus Enders, Gunter Ludwig, Ralph Rudolph
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Publication number: 20030036662Abstract: 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: ApplicationFiled: June 11, 2002Publication date: February 20, 2003Inventors: Shahram Mihan, Dieter Lilge, Paulus de Lange, Gunther Schweier, Martin Schneider, Ursula Rief, Udo Handrich, Johannes Hack, Markus Enders, Gunter Ludwig, Ralph Rudolph
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Patent number: 6517795Abstract: A process for producing high-purity hydrotalcites by reacting alcohols or alcohol mixtures with at least one or more divalent metal(s) and at least one or more trivalent metal(s) and hydrolyzing the resultant alcoholate mixture with water. The corresponding metal oxides can be produced by calcination.Type: GrantFiled: July 31, 1997Date of Patent: February 11, 2003Assignee: Sasol Germany GmbHInventors: Klaus Noweck, Klaus Diblitz, Jan Sohiefler, Andrea Brasch
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Patent number: 6511936Abstract: The present invention relates to catalyst systems, processes for making such catalysts, intermediates for such catalysts, and olefin polymerization processes using such catalysts wherein such catalyst includes a component represented by the following formula 1A: wherein R and R′ independently represent a hydrogen atom, or a substituted or unsubstituted, branched or unbranched hydrocarbyl or organosilyl radical; R1, R2, and R3 independently represent a hydrogen atom, or a substituted or unsubstituted, branched or unbranched hydrocarbyl radical; M is a group IIIB, IVB, VB, VIB, VIIB or VIII transition metal; T independently represents a univalent anionic ligand such as a hydrogen atom, or a substituted or unsubstituted hydrocarbyl halogeno, aryloxido, arylorganosilyl, alkyloriganosilyl, amido, arylamido, phosphido, or arylphosphido group, or two T groups taken together represent an alkylidene or a cyclometallated hydrocarbyl bidentate ligand; L independently represents a sigma donorType: GrantFiled: August 13, 1999Date of Patent: January 28, 2003Assignees: University of Delaware, Chevron Chemical Co.Inventors: Klaus H. Theopold, Woo-Kyu Kim, Leonard A. MacAdams, John M. Power, Javier M. Mora, Albert P. Masino
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Patent number: 6509426Abstract: Disclosed are a novel transition metal compound represented by the following general formula (I), a catalyst component for olefin polymerization comprising same, a catalyst for olefin polymerization comprising said catalyst component, and a process for the preparation of an a-olefin polymer: where the definition of formula (I) is described in the specification.Type: GrantFiled: February 5, 2001Date of Patent: January 21, 2003Assignee: Japan Polychem CorporationInventors: Taku Kato, Sugio Nishimura, Toshihiko Sugano
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Patent number: 6482967Abstract: Metallocenes having a 9-fluorenyl group and another cyclic dienyl group connected by a single carbon having a terminally unsaturated hydrocarbyl substituent wherein the 9-fluorenyl group has a hydrocarbyl substituent in the 4 position, olefin polymerization catalyst systems prepared therefrom, and the use of such catalyst systems are disclosed.Type: GrantFiled: August 7, 2001Date of Patent: November 19, 2002Assignee: Phillips Petroleum CompanyInventors: Alexander Köppl, Helmut G. Alt, M. Bruce Welch
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Patent number: 6444833Abstract: A class of metallocene compounds is disclosed having the general formula (I): wherein Y is a moiety of formula (II) wherein A, B and D, same or different from each other, are selected from an element of the groups 14 to 16 of the Periodic Table of the Elements (new IUPAC version), with the exclusion of nitrogen and oxygen; R1, R2, R3, R4 and R5 are hydrogen or hydrocarbon groups, Z is selected from a moiety of formula (II) as described above and from a moiety of formula (III): wherein R6, R7, R8 and R9, are hydrogen or hydrocarbon groups; L is a divalent bridging group; M is an atom of a transition metal selected from those belonging to group 3, 4, 5, 6 or to the lanthanide or actinide groups in the Periodic Table of the Elements (new IUPAC version), X, same or different, is hydrogen, a halogen, a R10, OR10, OSO2CF3, OCOR10, SR10, NR102 or PR102 group, wherein the substituents R10 are hydrogen or alkyl groups; p is an integer of from 0 to 3, being equal toType: GrantFiled: December 15, 1999Date of Patent: September 3, 2002Assignee: Basell Technology Company BVInventors: John A. Ewen, Michael J. Elder, Robert L. Jones
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Patent number: 6433203Abstract: Metallocene compounds having the general formula (I): R1 are hydrocarbon groups, R2 are hydrogen or hydrocarbon groups; M is a transition metal of group 3, 4, 5, 6 or to the lanthanide or actinide groups in the Periodic Table; M′ is a transition metal selected from those belonging to group 3 or to the lanthanide or actinide groups in the Periodic Table; X is a monoanionic ligand; p is an integer of from 0 to 3, being equal to the oxidation state of M minus two; q is an integer from 3 to 5; and n is an integer from 1 to 4, when the six-membered rings of formula (Ia) are not perhydrated, and is an integer of from 0 to 4, when the six-membered rings of formula (Ia) are perhydrated as well as in the compound of formula (Ib).Type: GrantFiled: July 14, 2000Date of Patent: August 13, 2002Assignee: Basell Technology Company BVInventors: Tiziano Dall'occo, Vu Anh Dang, Lin-Chen Yu, Luigi Resconi, Davide Balboni, Alessia Boscarato, Colin Schaverien
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Patent number: 6403734Abstract: Bridged fluorenyl-containing metallocenes of metals of Groups 4-6 and their use in forming homopolymers of alpha olefins or polymers of ethylene and optionally minor amounts of alpha olefins, wherein in each case at least one of the cyclic groups of the bridged ligand is a fluorenyl and the other is selected from indenyl, tetrahydroindenyl, fluorenyl, and in the case of the polymerization of ethylene optionally cyclopentadienyl.Type: GrantFiled: November 23, 1998Date of Patent: June 11, 2002Assignee: Phillips Petroleum CompanyInventors: Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Rolf L. Geerts, Eric T. Hsieh, Max P. McDaniel, Gil R. Hawley, Paul D. Smith
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Patent number: 6376629Abstract: A single-site olefin polymerization catalyst and method of making it are disclosed. The catalyst comprises an activator and an organometallic complex. The complex comprises a Group 3 to 10 transition or lanthanide metal, M, and at least one indenoindolyl ligand that is &pgr;-bonded to M. The key ligand is made in two steps from readily available indanones and aryl hydrazines. Reaction of its anion with a source of the metal completes a remarkably simple synthetic route to a new family of single-site olefin polymerization catalysts.Type: GrantFiled: January 29, 2001Date of Patent: April 23, 2002Assignee: Equistar Chemicals, LPInventors: Sandor Nagy, Bradley P. Etherton, Ramesh Krishnamurti, John A. Tyrell
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Patent number: 6369253Abstract: A method is provided for synthesizing metallocene compounds useful as polymerization catalysts and the like. The method involves (a) preparation of an amino alcohol-derived ligand by reacting a silane reactant with an amino alcohol in the presence of base, followed by (b) metallation of the ligand so provided. The metallocenes may be provided in chiral form when the amino alcohol contains an asymmetric center, and are thus useful in catalyzing stereospecific polymerization and other stereospecific bond formation reactions.Type: GrantFiled: March 6, 2000Date of Patent: April 9, 2002Assignee: SRI InternationalInventors: Robert B. Wilson Jr., Gary A. Koolpe
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Patent number: 6369254Abstract: Metallocene compounds with two indenyl-type ligands linked in the 4 position by means of a divalent bridging group can be suitably used as components of catalysts for the polymerization of olefins. In particular, it is possible to prepare saturated or unsaturated elastomeric copolymers of ethylene characterized by valuable properties, such as low ash content and uniform distribution of the comonomers in the polymer chain.Type: GrantFiled: May 30, 1996Date of Patent: April 9, 2002Assignee: Basell Technology Company BVInventors: Luigi Resconi, Ilya E. Nifant'ev, Yuri A. Dubitsky, Elisabetta Barbassa, Colin J. Schaverien, Ren' Ernst
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Patent number: 6365763Abstract: The invention relates to a method for producing rac/meso metallocenes, the rac/meso metallocenes themselves, and their use in the production of polyolefins.Type: GrantFiled: January 27, 2000Date of Patent: April 2, 2002Assignee: Basell Polyolefin GmbHInventors: Andreas Winter, Carsten Bingel, Volker Fraaije, Frank Kueber
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Patent number: 6344530Abstract: The present invention relates to a catalyst for polymerization of &agr;-olefin, which comprises: an essential component (A) of a transition metal compound, an essential component (B) of an ion exchangeable layer compound except for silicate, or an inorganic silicate, and an optional component (C) of an organoaluminum compound, said component (A) being represented by the general formula (I):Type: GrantFiled: April 17, 2001Date of Patent: February 5, 2002Assignee: Mitsubishi Chemical CorporationInventors: Toshihiko Sugano, Naoshi Iwama, Satoshi Hayakawa, Hisashi Shoda, Masami Kashimoto, Taku Kato, Takayuki Aoshima