Plural Carbons Bonded Directly To The Phosphorus Patents (Class 556/20)
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Publication number: 20040260041Abstract: The invention relates to novel bridged biphosphole ligands according to the general formula: 1Type: ApplicationFiled: April 8, 2004Publication date: December 23, 2004Inventors: Francois-Javier Buzin, Francois Nief, Francois Mathey, Jean Malinge, Eliane Deschamps, Bernard Deschamps
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Patent number: 6821783Abstract: The invention relates to new traceless linkers which use transition metal complexes to link a &pgr;-orbital containing substrate for subsequent synthesis by, for example, combinatorial chemistry or multiple parallel synthesis (MPS) to a support.Type: GrantFiled: January 31, 2001Date of Patent: November 23, 2004Assignee: Astrazeneca ABInventors: Alex C Comely, Sue E Gibson, Neil J Hales, Mark A Peplow
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Patent number: 6803474Abstract: Highly reactive, stable tetramanganese-oxo cubane complexes, their synthesis and their use as a functional catalyst for in vitro O2 production. Preferred complexes are i) a tetramanganese-oxo cubane complex having the formula L6Mn4O4, wherein Mn4O4, is a cubane core and L6 are six facially-capping bidentate ligands bridging between the Mn atoms; ii) a manganese-oxo-pyramid complex having the formula L6Mn4O3, wherein Mn4O3, is a pyramidal core and L6 are six bidentate ligands bridging between the Mn atoms; and iii) a manganese-oxo-butterfly complex having the formula L6Mn4O2 or L5Mn4O2, wherein Mn4O2, is a butterfly core and L6 or L5 are six or five bidentate ligands bridging between the Mn atoms. Preferred ligands are carboxylate, phosphinate or diphenylphosphinate ligands. These catalysts may be used for the oxidation of water to oxygen and hydrogen peroxide and may also be used to catalyze the oxidation of chloride and simple chloride compounds to chlorine gas.Type: GrantFiled: November 13, 2001Date of Patent: October 12, 2004Assignee: The Trustees of Princeton UniversityInventors: Gerard C. Dismukes, Wolfgang F. Ruettinger
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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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Publication number: 20040192543Abstract: Chiral porous zirconium phosphonates containing metal complex moieties are provided, synthesized via a molecular building block approach, and characterized by a variety of techniques including TGA, adsorption isotherms, XRD, SEM, IR, and microanalysis. These hybrid solids may be used for enantioselective heterogeneous asymmetric hydrogenation of aromatic ketones with remarkably high e.e. values of up to 99.2%. Similarly prepared chiral porous solids may be used for asymmetric hydrogenation of &bgr;-keto esters with e.e.'s of up to 95%. The solid catalysts can also be easily recycled and reused multiple times without the loss of activity and enantioselectivity. Ready tunability of such a molecular building block approach allows the optimization of these hybrid materials to provide practically useful heterogeneous asymmetric catalysts.Type: ApplicationFiled: March 24, 2003Publication date: September 30, 2004Inventors: Wenbin Lin, Aiguo Hu, Helen L. Ngo
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Patent number: 6780807Abstract: The present invention provides an improved acyclic anionic six-electron-donor ancillary ligand suitable for being bonded in a transition metal complex. The present invention also provides a transition metal complex that includes at least one acyclic anionic six-electron-donor ancillary ligand which is suitable for use as an olefin polymerization catalyst. The complex includes a Group 3 to 10 transition or lanthanide metal and one or more anionic or neutral ligands in an amount that satisfies the valency of the metal such that the complex has a net zero charge. The present invention also discloses a method for making transition metal complex and a method for using the complex for olefin polymerization.Type: GrantFiled: February 4, 2002Date of Patent: August 24, 2004Assignee: Equistar Chemicals L.P.Inventor: Sandor M. Nagy
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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: 6774254Abstract: Novel phosphino-gold (I) compounds, a process for their preparation, pharmaceutical compositions containing such phosphino-gold (I) compounds and their use in the treatment of cancer disease are disclosed.Type: GrantFiled: September 26, 2002Date of Patent: August 10, 2004Assignee: National University of SingaporeInventors: Pak Hing Leung, Soh Ha Chan, Yongcheng Song
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Patent number: 6770771Abstract: Various olefins may be polymerized using a catalyst systems containing selected &agr;-diimine, urethane or urea ligands, some of them novel, complexed to nickel, palladium or other selected transition metals. The polymers are useful as molding resins and elastomers.Type: GrantFiled: April 24, 2002Date of Patent: August 3, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Lynda Kaye Johnson, Lissa Taka Jennings Nelson
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Patent number: 6743932Abstract: An organometallic compound of the formula I where M1 is selected from among Fe, Ru and Os and M2 is selected from among the transition metals of groups IV to VI of the Periodic Table, which can be prepared by reacting an organometallic compound of the formula II with a transition metal compound of the formula III, M2L1L2(L3)x+1 III where the variables are as defined above and the organometallic compound of the formula II can, if desired, be doubly deproteinated beforehand, can be used as part of a catalyst system for the polymerization or copolymerization of olefins. This catalyst system comprises one or more organometallic compounds of the formula I and at least one activator.Type: GrantFiled: April 6, 2001Date of Patent: June 1, 2004Assignee: Basell Polyolefine GmbHInventors: Marc Oliver Kristen, Benno Bildstein, Michael Malaun, Ulrich Siemeling, Oliver Kuhnert
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Patent number: 6723676Abstract: The present invention relates to organometallic compounds of transition metals with an indenyl ligand bonded in the 2-position and substituted in the 1,3-position, a process for their production, and their use as catalysts for the (co)polymerization of olefinic and/or diolefinic monomers.Type: GrantFiled: June 4, 2002Date of Patent: April 20, 2004Assignee: Bayer AktiengesellschaftInventors: Sigurd Becke, Thomas Weiss, Heinrich Lang
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Patent number: 6716787Abstract: A subject of the present invention is new compounds having a lanthanide and having a tridentate ligand, a process for their preparation and their use in particular as polymerization catalysts.Type: GrantFiled: December 18, 2001Date of Patent: April 6, 2004Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique (C.N.R.S.)Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
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Patent number: 6686488Abstract: 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: November 6, 2001Date of Patent: February 3, 2004Assignee: The Dow Chemical CompanyInventors: David R. Wilson, Robert K. Rosen
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Publication number: 20030229240Abstract: The invention relates to a process for synthesizing tertiary phosphines by reacting halophosphines with organomagnesium compounds in the presence of copper compounds and optionally of salts.Type: ApplicationFiled: April 17, 2003Publication date: December 11, 2003Inventors: Florian Rampf, Hans-Christian Militzer
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Patent number: 6660892Abstract: This invention is a process for synthesizing aliphatic 1,3-diols in one step by hydroformylation and hydrogenation of oxirane, carbon monoxide, and hydrogen employing a catalyst comprising a cobalt carbonyl compound and a cocatalyst metal compound ligated with a ligand in a ligand to cocatalyst metal atom molar ratio in the range of 0.2:1.0 to 0.6:1.0, optionally in the presence of a promoter, where recovery of product is preferably accomplished via water extraction of a diol rich phase from the bulk reaction mixture. The process modifications can, particularly in combination, be beneficial with respect to product recovery, catalyst recycle, and overall economics of a one-step process for producing aliphatic 1,3-diols.Type: GrantFiled: February 7, 2003Date of Patent: December 9, 2003Assignee: Shell Oil CompanyInventors: Joseph Broun Powell, Paul Richard Weider, John Frederick Knifton, Kevin Dale Allen, Lynn Henry Slaugh, Juan Pedro Arhancet
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Patent number: 6613713Abstract: The present invention relates to transition metal organometallic compounds with an indenyl ligand attached in position 2 and fused in position 5,6, to a process for the production thereof and to the use thereof as catalysts for the (co)polymerization of olefinic and/or diolefinic monomers.Type: GrantFiled: January 23, 2001Date of Patent: September 2, 2003Assignee: Bayer AktiengesellschaftInventors: Sigurd Becke, Heinrich Lang, Thomas Weiss
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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: 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: 6583305Abstract: The present invention relates to novel chiral 1,1′-ferrocenylene diphosphonites and the synthesis thereof, in addition to complexes of said compounds with metals from groups VIIb, VIIIb and Ib of the Periodic Table and to the use thereof for enantioselective hydrogenation of olefins, ketones and imines, or enantioselective hydroboration and 1,4-addition to activated olefins.Type: GrantFiled: June 8, 2001Date of Patent: June 24, 2003Assignee: Studiengesellschaft Kohle mbHInventors: Manfred T. Reetz, Andreas Gosberg
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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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Patent number: 6528671Abstract: A transition metal compound obtained by reacting (a) a transition metal compound represented by the following general formula (1) with (b) a conjugated or non-conjugated diene in the presence of a compound (c) selected from the group consisting of alkyllithiums, alkali metals, alkali metal hydrides and Grignard compounds, and a transition metal compound represented by the following general formula (2), an addition polymerization catalyst obtained by contacting the above-mentioned transition metal compound (2) with a co-catalyst for activation, and a method for producing an olefin polymer with the addition polymerization catalyst.Type: GrantFiled: September 29, 2000Date of Patent: March 4, 2003Assignee: Sumitomo Chemical Company, LimitedInventor: Masaaki Nabika
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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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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: 20020193537Abstract: The present invention provides a method for varying the melting points and molecular weights of polyolefins by changing the structure of the catalyst used in the polymerization. The catalysts that are useful in the present invention are chiral, stereorigid metallocene catalyst of the formula R″(C5R″m)2MeQ. The catalysts include a bridge structure between the (C5R′m) groups and may contain substituents on the groups. It has been discovered that the melting points and molecular weights of the polymers produced by such catalysts are influenced by the bridge and substituents added to the (C5R′m) groups. Thus, the present invention provides a method for varying the melting points of the polymer product and a method of varying the molecular weights of the product by changing the components and structure of the metallocene catalysts. The present invention also provides a process for polymerizing olefins in which the melting points and/or molecular weights of the product may be controlled.Type: ApplicationFiled: November 7, 2001Publication date: December 19, 2002Inventor: John A. Ewen
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Patent number: 6469114Abstract: Disclosed are compounds of the following core structure, and their use as polymerization catalysts: wherein M1 is a group lVb transition metal, R5 is a substituted aryl group, and Ra forms a heteroatom-containing ring fused to the cyclopentadienyl ring.Type: GrantFiled: September 14, 2000Date of Patent: October 22, 2002Assignee: Basell Polyolefins GmbHInventors: Jörg Schottek, Roland Kratzer, Andreas Winter, Volker Fraaije, Michael-Joachim Brekner, Markus Oberhoff
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Patent number: 6441211Abstract: A new process, particularly simple, convenient and practical, for the direct synthesis of organometallic compounds of formula(I): (A)(ZR1m)n(A′)MLpL′q (I) wherein (ZR1m)n is a divalent group bridging A and A′; A and A′ re independently —O—, —S—, or —N(R2)—, wherein R2 is hydrogen, alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl; M is a transition metal belonging to group 3, 4, 5, 6 or to the lanthanide or actinide groups; L is a monoanionic sigma ligand, such as alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl, optionally containing Si or Ge; L′ is halogen or —OR3, R3 being an hydrocarbon radical; m is 0, 1 or 2; n is 1-8; p is 1-3; q is 0-2. Said process comprises reacting the ligand (H—A)(ZR1m)n(A′—H) with about 1 molar equivalent of ML′s in the presence of about (2+p) molar equivalents of LjB or LMgL′, wherein B is an alkaline or alkaline-earth metal, s ranges from 3 to 6, and j is 1 or 2.Type: GrantFiled: February 2, 2001Date of Patent: August 27, 2002Assignee: Basell Technology Company BVInventor: Luigi Resconi
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Patent number: 6423659Abstract: &pgr;-complex compounds and in particular metallocene compounds of formula (Ia)(Ib), in which &pgr;I and &pgr;II represent &pgr;-systems, D designates a donor atom and A designates an acceptor atom, D and A being linked by a reversible coordinative bond such that the donor group assumes a positive (partial) charge and the acceptor group assumes a negative (partial) charge, at least one of D and A being part of the associated &pgr;-system in each case, M stands for a transition metal of the 3rd, 4th, 5th or 6th subgroup of the (Mendelian) periodic system of elements, X designates an anion equivalent and n designates the number zero, one, two three or four depending on the charges of M and those of &pgr;I and &pgr;II, are novel and can be used as catalysts for the (co)polymerization of olefins, i-olefins, alkines and/or diolefins or for ring-opening polyaddition.Type: GrantFiled: October 1, 1999Date of Patent: July 23, 2002Assignee: Bayer AktiengesellschaftInventors: Karl-Heinz Aleksander Ostoja Starzewski, Warren Mark Kelly
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Patent number: 6403738Abstract: Various olefins may be polymerized using a catalyst systems containing selected &agr;-diimine, urethane or urea ligands, some of them novel, complexed to nickel, palladium or other selected transition metals. The polymers are useful as molding resins and elastomers.Type: GrantFiled: July 28, 1999Date of Patent: June 11, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Lynda Kaye Johnson, Lissa Taka Jennings Nelson
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Publication number: 20020062011Abstract: 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: ApplicationFiled: June 12, 2001Publication date: May 23, 2002Inventors: Richard E. Campbell,, Jerzy Klosin, Ravi B. Shankar, Francis J. Timmers, Robert K. Rosen
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Publication number: 20010051699Abstract: A transition metal compound of the following formula (1) as catalyst component for the production of an aromatic vinyl compound polymer or an aromatic vinyl compound-olefin copolymer: 1Type: ApplicationFiled: February 8, 2001Publication date: December 13, 2001Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Toru Arai, Toshiaki Otsu, Shigeru Suzuki
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Patent number: 6306791Abstract: Zirconocene compounds with two indenyl ligands linked in the 2 position by means of a two-carbon-atoms divalent bridging group can be suitably used as components of catalysts for the polymerization of olefins. Particularly it is possible to prepare, with high yields, ethylene (co)polymers having low molecular weights and narrow molecular weight distributions, without the need of using considerable amounts of molecular weight regulators, such as hydrogen.Type: GrantFiled: February 28, 2001Date of Patent: October 23, 2001Assignee: Basell Technology Company BVInventors: Colin J. Schaverien, René Ernst, Jan-Dirk van Loon, Tiziano Dall′Occo
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Patent number: 6288253Abstract: Dendrimers were directly and covalently attached to solid supports via siloxy bonds. After complexation with transition metals, the dendrimers were used as catalysts. The supported dendrimers were stable and easily separated from the reaction mixture.Type: GrantFiled: July 9, 1999Date of Patent: September 11, 2001Assignees: DuPont Canada Inc., National Research Council, The University of OttawaInventors: Leo E. Manzer, Prabhat Arya, Howard Alper, Sheila Christine Bourque, Gary Jefferson
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Patent number: 6271322Abstract: Disclosed is a monocyclopentadienyl metal compound that can polymerize polyolefins as part of a catalyst system. The monocyclopentadienyl compound can specifically be (C5H4CH2CH2NMe2)TiCl3.Type: GrantFiled: July 20, 1999Date of Patent: August 7, 2001Inventors: Laughlin Gerard McCullough, James C. W. Chien, Juan Carlos Flores, Marvin D. Rausch
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Patent number: 6248912Abstract: Organometallic compounds of transition metals containing optionally tetrahydrogenated 2-indenyl as a first ligand of the formula wherein A represents the benzo system or the tetrahydrocyclohexyl system and the other symbols have the range of meanings given in the description, are prepared by reaction of with Mg or Zn and with a dihalide Hal2—Y—Hal3 (III) to form the novel intermediates further reaction with ZM2p(Va) or ZR9p(Vb) to form and further reaction with a transition metal compound of the formula M1Xq(VIII). Many compounds (I) are not C2-symmetrical. The compounds (I) can be used as catalysts for the (co)polymerization of olefins, diolefins and/or cycloolefins.Type: GrantFiled: February 26, 1999Date of Patent: June 19, 2001Assignee: Bayer AktiengesellschaftInventors: Heinrich Lang, Thomas Weiss, Sigurd Becke
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Patent number: 6232484Abstract: Zirconocene compounds with two indenyl ligands linked in the 2 position by means of a two-carbon-atoms divalent bridging group can be suitably used as components of catalysts for the polymerization of olefins. Particularly it is possible to prepare, with high yields, ethylene (co)polymers having low molecular weights and narrow molecular weight distributions, without the need of using considerable amounts of molecular weight regulators, such as hydrogen.Type: GrantFiled: March 9, 1999Date of Patent: May 15, 2001Assignee: Montell Technology B.V.Inventors: Colin J. Schaverien, Renè Ernst, Jan-Dirk van Loon, Tiziano Dall′occo
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Patent number: 6221906Abstract: The present invention relates to a platinum complex conjugated to a cyclotriphosphazene represented by Formula 1 and a preparation method thereof. The platinum complex according to the present invention can be used as an anticancer agent.Type: GrantFiled: March 2, 2000Date of Patent: April 24, 2001Assignee: Korea Institute of Science and TechnologyInventors: Youn Soo Sohn, Hyoung Gee Baek, Chong Ock Lee
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Patent number: 6218559Abstract: Reaction products of an iridium(III) salt or a hydrate thereof, a diphosphine having secondary phosphine groups and a metal or ammonium chloride, bromide or iodide are excellent hydrogenation catalysts for ketimine. Using chiral diphosphines and prochiral ketimines, diastereoisomeric secondary amines are obtained in high optical yields.Type: GrantFiled: March 11, 1999Date of Patent: April 17, 2001Assignee: Novaritis CorporationInventors: Felix Spindler, Ulrich Pittelkow
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Patent number: 6184320Abstract: Metallocene compounds of the formula where CpI and CpII are carbanions having a cyclopentadienyl-containing structure, D is a donor atom and A is an acceptor atom, where D and A are linked by a reversible coordinative bond in such a way that the donor group takes on a positive (partial) charge and the acceptor group takes on a negative (partial) charge, M represents a transition metal of transition group III, IV, V or VI of the Periodic Table of the Elements (Mendeleev), X is one anion equivalent and n is, depending on the charge of M, zero, one, two, three or four, are new and can be used as catalysts for the (co)polymerization of olefins, i-olefins, alkines and/or diolefins or for ring-opening polyaddition. A typical X-ray structure analysis is represented by formula 18a.Type: GrantFiled: December 30, 1998Date of Patent: February 6, 2001Assignee: Bayer AktiengesellschaftInventors: Karl-Heinz Aleksander Ostoja Starzewski, Warren Mark Kelly
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Patent number: 6169052Abstract: Chemically homogeneous cycloolefin copolymers of polycyclic olefins, such as, for example, norbornene or tetracyclododecene, with cycloolefins and/or acyclic olefins are obtained without ring opening and in a high space-time yield if a catalyst system is used which comprises an aluminoxane and a stereorigid metallocene compound of an element from groups IVb to VIb, of the formula the part of the metallocene molecule formed by M1 and the substituents R16-R17 having C1-symmetry or being in the meso-form.Type: GrantFiled: April 14, 1997Date of Patent: January 2, 2001Assignee: Targor GmbHInventors: Michael-Joachim Brekner, Frank Osan, J{umlaut over (u)}rgen Rohrmann, Martin Antberg
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Patent number: 6153777Abstract: A process of preparing in high yield racemic ansa-metallocene complexes by reacting a chelated bisamide group 4 metal complex with an ansa-bis-cyclopentodrenyl dianion reagent. The meso isomers are not detectable in the reaction product.Type: GrantFiled: November 2, 1999Date of Patent: November 28, 2000Assignee: University of Iowa Research FoundationInventors: Richard F. Jordan, Xingwang Zhang
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Patent number: 6090962Abstract: Titanium and zirconium complexes comprising one or more, cyclic, delocalized .pi.-bonded ligand groups wherein the metal of said complexes is in the +2 formal oxidation state are prepared in high yield and purity by reaction of the corresponding titanium or zirconium halides in the +3 or +4 oxidation state with a di(C.sub.1-20 alkyl) magnesium reagent. The complexes are used as catalyst components for olefin polymerization catalysts.Type: GrantFiled: September 28, 1999Date of Patent: July 18, 2000Assignee: The Dow Chemical CompanyInventor: Robert K. Rosen
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Patent number: 6069264Abstract: The present invention relates to a transition metal compound of the formula I ##STR1## where M.sup.1 is a transition metal of group IIIb, IVb, Vb or VIb of the Periodic Table of the Elements,Y are identical or different and are each a hydrogen atom, an OH group, a halogen atom, a C.sub.1 -C.sub.40 -hydrocarbon-containing group or an NR.sup.15.sub.2 group, where R.sup.15 is a halogen atom, a C.sub.1 -C.sub.10 -alkyl group or a C.sub.6 -C.sub.10 -aryl group, k is an integer which corresponds to the valence of the transition metal atom M.sup.1 minus two and, if Y is a butadiene unit, k is 1,R.sup.1, R.sup.2, R.sup.3, R.sup.7, R.sup.8 and R.sup.9 are identical or different and are each a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.40 -hydrocarbon-containing group, an --SiR.sup.15.sub.3, --NR.sup.15.sub.2, --SiOR.sup.15.sub.3, --SiSR.sup.15.sub.3 or --PR.sup.15.sub.2 radical, where R.sup.15 is a halogen atom, a C.sub.1 -C.sub.10 -alkyl group or a C.sub.6 -C.sub.Type: GrantFiled: June 12, 1997Date of Patent: May 30, 2000Assignee: Targor GmbHInventors: Michael Riedel, Gerhard Erker, Martin Konnemann
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Patent number: 6063949Abstract: The present invention relates to a stereorigid metallocene compound having as ligands at least two substituted or unsubstituted cyclopentadienyl groups which are connected to one another via a five-membered ring, where at least one cyclopentadienyl group is fused onto the five-membered ring and the ligand system of the stereorigid metallocene compound is different from 4-[.eta..sup.5 -3'-alkylcyclopentadienyl)-4,6,6-trimethyl-(.eta..sup.5 -2-alkyl-4,5-tetrahydropentalene]. The metallocene compound of the invention is suitable as a catalyst component for olefin polymerization.Type: GrantFiled: June 19, 1996Date of Patent: May 16, 2000Assignee: Targor GmbHInventors: Michael Aulbach, Frank Kuber, Michael Riedel, Freddy Helmer-Metzmann
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Patent number: 6057466Abstract: Compounds, for initiating the polymerization of ethylenically unsaturated compounds, having the formula ##STR1## where E is nitrogen, phosphorus, arsenic or antimony,X is oxygen, NR.sup.1 or sulphur,L is R.sup.8 R.sup.9 R.sup.10 E.sup.1 (Y).sub.n, alkyl ether, ester, alkyl and aryl nitrites, pyridine, piperidine, sulphoxides, sulphones, sulphimides, sulphodiimides or sulphur ylides, and R.sup.1 -R.sup.5 are as defined in the specification.Type: GrantFiled: September 29, 1997Date of Patent: May 2, 2000Assignee: Bayer AktiengesellschaftInventors: Karl-Heinz Aleksander Ostoja Starzewski, Uwe Denninger
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Patent number: 6057465Abstract: Compositions and methods for the solid phase synthesis of organic compounds are provided. The compositions are solid supports having an attached traceless linker precursor and are represented by the formula: ##STR1## In this formula, S.sup.0 is a solid support; B is a connecting group; M is a transition metal, for example ruthenium, chromium, iron, molybdenum and manganese; each L is independently a transition metal ligand; the letter n represents an integer of from 1 to 4, such that M has a sufficient number of ligands to fill the available valences; and X.sup.- represents an anion which is typically a non-nucleophilic anion.Type: GrantFiled: May 22, 1997Date of Patent: May 2, 2000Assignee: Glaxo Wellcome Inc.Inventor: Mark A. Gallop
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Patent number: 6054404Abstract: Metallocene compounds having two fluorenyl ligands bridged with a single silicon or germanium atom, said atom having two substituent groups containing a total of at least four carbon atoms, are useful as catalyst components for the polymerization of olefins. Particularly, it is possible to prepare high molecular weight atactic polypropylene with improved yields with respect to the known catalysts.Type: GrantFiled: July 27, 1998Date of Patent: April 25, 2000Assignee: Montell Technology Company bvInventors: Luigi Resconi, Robert L. Jones
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Patent number: 6051727Abstract: A very effective catalyst system for the polymerization or copolymerization of olefins comprises a cocatalyst, preferably an aluminoxane or a supported aluminoxane, and a metallocene of the formula I ##STR1## in which, in the preferred form, M.sup.1 in Zr or Hf, R.sup.1 and R.sup.2 are halogen or alkyl, R.sup.3 is alkyl, R.sup.4 to R.sup.12 are alkyl or hydrogen and R.sup.13 is a (substituted) alkylene or heteroatom bridge. The metallocenes, in particular the zirconocenes, produce polymers of very high molecular weight, in the case of prochiral monomers polymers of very high molecular weight, very high stereotacticity and very high melting point, at high catalyst activities in the industrially particularly interesting temperature range between 50 and 80.degree. C. In addition, reactor deposits are avoided by means of supported catalyst systems.Type: GrantFiled: December 31, 1997Date of Patent: April 18, 2000Assignee: Targor GmbHInventors: Frank Kuber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jurgen Rohrmann
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Patent number: 6051728Abstract: A class of metallocene compounds having two substituted cyclopentadienyl rings bridged by an alkylidene group wherein the cyclopentadienyl groups can be indenyl groups. The metallocene compounds have the following structures: ##STR1## The metallocenes are characterized by three principal features: (i) the cyclopentadienyl groups are substituted at the 3-position with a substituent other than hydrogen, while R.sup.2 in the 2-position bears a hydrogen (formula (I)) or is part of a condensed benzene ring (formula (II)); (ii) the bridge is a substituted-methylene bridge, i.e. a methylene group bearing at least one substituent other than hydrogen (R.sup.6 is always different from hydrogen); and (iii) the cyclopentadienyl groups are identically substituted (page 2, line 23). These metallocene compounds can be suitably used as catalyst components for the polymerization of olefins.Type: GrantFiled: January 23, 1996Date of Patent: April 18, 2000Assignee: Montell Technology Company BVInventors: Luigi Resconi, Fabrizio Piemontesi, Ilya E. Nifant'ev, Pavel V. Ivchenko
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Patent number: 6015916Abstract: A practical and scalable process for the synthesis of constrained geometry metallocene catalyst is described.Type: GrantFiled: February 2, 1999Date of Patent: January 18, 2000Assignee: Boulder Scientific CompanyInventors: Jeffrey M. Sullivan, Daniel Anthony Gately
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Patent number: RE37384Abstract: The novel metallocenes of the formula I in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen, R5 and R6 are alkyl or haloalkyl, —(CR8R9)m—R7—(CR8R9)n— is a single- or multi-membered chain in which R7 may also be a (substituted) hetero atom, and m+n is zero or 1, form, together with aluminoxanes as cocatalysts, a very effective catalyst system for the preparation of polyolefins of high molecular weight.Type: GrantFiled: July 13, 1999Date of Patent: September 18, 2001Assignee: Targor GmbHInventors: Andreas Winter, Martin Antberg, Walter Spaleck, Jürgen Rohrmann, Volker Dolle