Chromium, Molybdenum, Or Tungsten Containing (cr, Mo, Or Patents (Class 556/57)
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Publication number: 20020165405Abstract: The present invention is generally directed to a process for preparing polyoxometalates having amine-derived substituents attached thereto. In a first embodiment, the process comprises contacting a polyoxometalate and an amine in the presence of a diimide. The present invention is further directed to novel functionalized polyoxometalates prepared by the present process.Type: ApplicationFiled: March 29, 2002Publication date: November 7, 2002Applicant: The Curators of the University of MissouriInventors: Zhonghua Peng, Yongge Wei, Bubin Xu
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Patent number: 6462213Abstract: A method for the generation of ammonia from dinitrogen is provided including reacting a three coordinate, low oxidation state transition metal complex with dinitrogen under substantially atmospheric pressures to obtain a metal-nitrido complex, whereby the oxidation state of the metal complex increases, and reducing the metal of the metal nitrido complex in the presence of a hydrogen source, so as to obtain NH3. A novel metal complex is provided which is capable of cleaving small molecules which includes a metal selected from the group consisting of molybdenum, titanium, vanadium, niobium, tungsten, uranium and chromium. The compound may have the formula M(NR1R2)3 where M is a transition metal; R1 and R2 are independently selected from the group consisting of tertiary alkyls, phenyls and substituted phenyls. The compound permits cleavage of nitrogen-nitrogen triple bonds.Type: GrantFiled: January 18, 2000Date of Patent: October 8, 2002Assignee: Massachusetts Institute of TechnologyInventors: Christopher C. Cummins, Catalina E. Laplaza
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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: 6433270Abstract: ORGANOMETALLIC COORDINATION complexes exhibiting two separate, stable forms are described. Conversion from one form to the other is intramolecular, reversible, light-activated (a molecular switch) and occurs both in the solid and in solution. The two forms differ in photochemical and electrochemical characteristics (different colors and reduction potentials). The complexes can be used in information storage and for light-gathering, light-emitting, sensing and detecting applications.Type: GrantFiled: September 25, 2000Date of Patent: August 13, 2002Assignee: California Institute of TechnologyInventor: Jeffrey J. Rack
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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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Patent number: 6362355Abstract: A molybdated dispersant composition represented by the formula: (R1—NR2R3H+)m−nXn(MoHPA)m− provides good friction properties to lubricants. In the formula, R1—NR2R3 represents an amine-containing dispersant, R1 is a group providing dispersant properties to said dispersant composition, each of R2 and R3 is independently hydrogen, a hydrocarbyl group, or an additional R1 group; X is hydrogen, a monovalent metal ion, a single valence of a polyvalent metal ion, an ammonium ion, or an amine cation, m is 3 or 4, n is 0 to about 2.5 when m is 3 and 0 to about 3.5 when m is 4, and (MoHPA)m− is a molybdenum heteropolyacid anion of charge m.Type: GrantFiled: January 21, 2000Date of Patent: March 26, 2002Assignee: The Lubrizol CorporationInventors: Thomas F. Steckel, Ping Y. Zhu
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Patent number: 6359160Abstract: A new method of forming a molybdenum nitride barrier layer by chemical vapor deposition from the precursor bisdiethylamido-bistertbutylimido-molybdenum (BDBTM) as a diffusion barrier for copper metallization is described. Semiconductor device structures are provided in and on a semiconductor substrate. An insulating layer is deposited overlying the sermiconductor device structures. A via opening is etched through the insulating layer to contact one of the semiconductor device structures. A barrier layer of molybdenum nitride is conformally deposited by chemical vapor deposition within the via. A layer of copper is deposited overlying the molybdenum nitride barrier layer wherein the molybdenum nitride barrier layer prevents copper diffusion to complete the copper metallization in the fabrication of an integrated circuit device.Type: GrantFiled: June 9, 2000Date of Patent: March 19, 2002Assignee: Taiwan Semiconductor Manufacturing CompanyInventors: Shi-Chung Sun, Hien-Tien Chiu
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Patent number: 6359159Abstract: Chemical vapor deposition processes utilize as precursors volatile metal complexes with ligands containing metalloid elements silicon, germanium, tin or lead.Type: GrantFiled: December 4, 2000Date of Patent: March 19, 2002Assignee: Research Foundation of State University of New YorkInventors: John T. Welch, Paul J. Toscano, Rolf Claessen, Andrei Kornilov, Kulbinder Kumar Banger
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Patent number: 6355821Abstract: Methods of forming metal alkoxides and methods of forming precursor solutions of metal alkoxides suitable for the coating of glass in the manufacture of electrochromic devices are disclosed. The method of forming metal alkoxides involves dissolving the metal halide in an anhydrous solvent and reacting it with an alcohol and (together with the addition of the alcohol or subsequently) adding an epoxide, and then evaporating-off the volatile components of the reaction product to leave a solid metal alkoxide that is substantially free of halide. The alkoxide may then be dissolved in a solvent including an alcohol (preferably ethanol) containing a small proportion of water to produce a precursor solution suitable for coating glass, the coating then being hydrolyzed to form a sol-gel and then baked to remove volatile components and to yield a thin layer of metal oxide.Type: GrantFiled: July 5, 2000Date of Patent: March 12, 2002Assignee: Sustainable Technologies Australia LimitedInventors: Andrew Joseph Koplick, Susan Marie Jenkins
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Patent number: 6340768Abstract: Volatile metal complexes with &agr;-sila-&bgr;-diketonate ligands containing haloalkyl, and particularly, perfluoroalkyl, substitutents are useful as metal precursors for chemical vapor deposition processes and as nanostructured materials containing fluorous domains.Type: GrantFiled: December 4, 2000Date of Patent: January 22, 2002Assignee: Research Foundation of State University of New YorkInventors: John T. Welch, Kulbinder Kumar Banger, Seiichiro Higashiya, Silvana C. Ngo
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Patent number: 6316652Abstract: The invention relates to novel targeting drug agents that are targeted for entry into the mitochondria. More specifically, the agents are cisplatin derivatives called mitoplatins which are useful as anti-tumor agents. Mitoplatins are named for their targeting to the mitochondrial DNA via the carnitine-acylcarnitine translocase system. The invention also relates to methods of synthesizing mitoplatins, compositions of matter containing mitoplatins and methods of using the mitoplatins.Type: GrantFiled: June 6, 1995Date of Patent: November 13, 2001Inventor: Kosta Steliou
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Patent number: 6278009Abstract: It is shown metallocenes with functionalized bridge of formula wherein M represents a transition metal of groups 3, 4, 5 or 6, L represents cyclopentadienyl-type ligands, Y represents a halogen and which can own one or various bridges between unities L. At least one of these bridges is functionalized through a group constituted by the union between a halogen atom and a silicon, germanium or tin atom. It is also shown a method for the synthesis of these metallocene compounds starting from the corresponding metallic halure and a precursor of the ligand which has leaving groups. These metallocene compounds are used as catalyst precursors for the homopolymerization and copolymerization of olefins. It is also shown methods for supporting these metallocenes on inorganic solids in order to obtain solid catalyst systems for olefins polymerization processes in a heterogeneous phase.Type: GrantFiled: January 30, 1998Date of Patent: August 21, 2001Assignee: Repsol Quimica S.A.Inventors: Luis Mendez Llatas, Antonio Muñoz-Escalona Lafuente, Jose Sancho Royo, Pilar Lafuente Cañas, Wilfried Michiels Vega, Begoña Peña Garcia
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Patent number: 6254850Abstract: The invention relates to diethylenetriaminepentaacetic acid derivatives, their complexes and complex salts, containing an element of atomic numbers 20-32, 39-51 or 57-83, pharmaceutical agents containing these compounds, their use as contrast media and antidotes and process for their production.Type: GrantFiled: January 10, 2000Date of Patent: July 3, 2001Assignee: Schering AktiengesellschaftInventors: Werner Krause, Franz-Karl Maier, Michael Bauer, Gabriele Schuhmann-Giampieri, Wolf-Rudiger Press, Peter Muschik
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Patent number: 6248913Abstract: A catalyst for the selective oxidation of olefins in the presence of air or oxygen, comprising a compound of the formula (1) MoxOy(L)z (1) where x is 1, 2 or 3, y is an integer from 0 to 2x+1, z is an integer from 1 to 2x, wherein the ligand L is a compound of the formula (2) or (3) where n is 0 or 1, X is a nitrogen, oxygen or sulfur atom, Y is hydrogen, C1-C8-alkyl, C1-C8-alkoxy, F, Cl, Br, I, COOCH3, C6-C14-aryl or C3-C8-cycloalkyl, R3 and R4 form a ring containing from 4 to 8 carbon atoms onto which one or two aromatic rings may be fused, R1 and R2 are hydrogen, branched or straight-chain C1-C12-alkyl or branched or straight-chain C1-C12-haloalkyl which substitute the ring formed by R3 and R4 and/or the rings fused onto this ring, or the ligand L is a compound of the formula (4) or (5) where R is hydrogen, C1-C8-alkyl, C1-C8-alkoxy, COOCH3, carbonyl oxygen, C6-C14-aryl or C3-C8-cycloalkyl and n is 1 or 2 and m is from 1 to 6.Type: GrantFiled: January 7, 2000Date of Patent: June 19, 2001Assignee: Aventis Research & Technologies GmbH & Co. KGInventors: Gerhard Lobmaier, Wolfgang Anton Herrmann, Rolf Peter Schulz
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Patent number: 6242623Abstract: Novel compositions and metal compounds having an ancillary ligand structure polymerize monomers and functionalized monomers, either alone or in the presence of an activator. The ancillary ligand structure is a chelating ligand that may optionally be further bound to the metal via a dative or covalent bond.Type: GrantFiled: July 20, 1998Date of Patent: June 5, 2001Assignee: Symyx Technologies, Inc.Inventors: Thomas Boussie, Vince Murphy, Johannes A. M. van Beek
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Patent number: 6232276Abstract: A lubricating oil composition is provided comprising a major amount of an oil of lubricating viscosity and a minor amount of at least one trinuclear molybdenum compound. Preferably, the trinuclear molybdenum compound is selected from those compounds having the formula Mo3SkL4Qz and mixtures thereof in which L is a ligand having organo groups with a sufficient number of carbon atoms to render the compound soluble in the oil, k varies from 4 through 7, Q is selected from the group of compounds having lone pair electrons including water, amines, alcohols, phosphines, and ethers, and z ranges from 0 to 5. In general, the organo groups of the mono-anionic ligands will be the same although they may be different, and they preferably are selected from alkyl, aryl, substituted aryl, and ether groups. For example, when L is a dialkyldithiocarbamate or a dialkyldithiophosphate, the alkyl groups will have from about 1 to 30 carbon atoms.Type: GrantFiled: April 18, 1997Date of Patent: May 15, 2001Assignee: Infineum USA L.P.Inventors: Edward Ira Stiefel, Jonathan M. McConnachie, Daniel Paul Leta, Manuel A. Francisco, Catherine Louise Coyle, Peter John Guzi, Charles F. Pictroski
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Patent number: 6217797Abstract: There is disclosed an amine molybdate obtained by reacting an amine with molybdenum trioxide in an aqueous acidic solution under pressure and at a temperature of from 105-150° C.Type: GrantFiled: April 11, 2000Date of Patent: April 17, 2001Assignee: Unitex Chemical CorporationInventors: James F. Day, Chad E. Lee
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Patent number: 6184403Abstract: Chemical vapor deposition processes utilize as precursors volatile metal complexes with ligands containing metalloid elements silicon, germanium, tin or lead.Type: GrantFiled: May 19, 1999Date of Patent: February 6, 2001Assignee: Research Foundation of State University of New YorkInventors: John T. Welch, Paul J. Toscano, Rolf Claessen, Andrei Kornilov, Kulbinder Kumar Banger
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Patent number: 6136224Abstract: A gas generant for an air, which is improved in the defects of gas generants using sodium azide in a practical use and has stable combustion capability. And a molecular compound comprising (a) a gas generant component, (b) an oxidant component and (c) a reaction accelerator component, preferably represented by the composition formula (I).M.mX.nY (I)[wherein, M is Al Mg, Ca, Cr, Cu, Zn, Mn, Fe, Co, Sr, Ni and another metal components; X is a nitrogen-containing compound having 0 or 1 carbon atom; Y is an anion such as NO.sub.3 and ClO; m is a number of 1 to 3; and n is a number 2 to 3].Type: GrantFiled: August 28, 1996Date of Patent: October 24, 2000Assignee: Daicel Chemical Industries, Ltd.Inventors: Jianzhou Wu, Norimasa Hirata, Takushi Yokoyama
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Patent number: 6136222Abstract: Nitrogen-absorbing and -desorbing compositions, novel ligands and transition metal complexes, and methods of using the same, which are useful for the selective separation of nitrogen from other gases, especially natural gas.Type: GrantFiled: April 11, 1996Date of Patent: October 24, 2000Assignee: Bend Research, Inc.Inventors: Dwayne T. Friesen, Walter C. Babcock, David J. Edlund, David K. Lyon, Warren K. Miller
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Patent number: 6126996Abstract: A metalorganic complex of the formula:MA.sub.Y Xwherein:M is a y-valent metal;A is a monodentate or multidentate organic ligand coordinated to M which allows complexing of MAY with X;y is an integer having a value of 2, 3 or 4;each of the A ligands may be the same or different; andX is a monodentate or multidentate ligand coordinated to M and containing one or more atoms independently selected from the group consisting of atoms of the elements C, N, H, S, O and F.The metal M may be selected from the group consisting of Cu, Ba, Sr, La, Nd, Ce, Pr, Sm, Eu, Th, Gd, Th, Dy, Ho, Er, Tm, Yb, Lu, Bi, Tl, Y, Pb, Ni, Pd, Pt, Al, Ga, In, Ag, Au, Co, Rh, Ir, Fe, Ru, Sn, Li, Na, K, Rb, Cs, Ca, Mg, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W. A may be selected from the group consisting of .beta.-diketonates and their sulfur and nitrogen analogs, .beta.-ketoesters and their sulfur and nitrogen analogs, cyclopentadienyls, alkyls, perfluoroalkyls, alkoxides, perfluoroalkoxides, and Schiff bases.Type: GrantFiled: December 15, 1997Date of Patent: October 3, 2000Assignee: Advanced Technology Materials, Inc.Inventors: Peter S. Kirlin, Duncan W. Brown, Thomas W. Baum, Brian A. Vaarstra, Robin A. Gardiner
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Patent number: 6121473Abstract: A composition and method for the catalytic conversion of a racemic mixture of dienes to a cyclic olefin by a ring-closing metathesis (RCM) reaction are disclosed. The composition, a transition metal complex with an M.dbd.C reaction site, contains a bidentate dialkoxide of at least 80% optical purity. Because the M.dbd.C reaction site is of a sufficient shape specificity, conferred in part by the dialkoxide of sufficient rigidity and a M.dbd.N--R.sup.1 site, reacting the composition with a mixture of two enantiomcric dienes results in an olefin metathesis product that has at least a 50% enantiomeric excess of one enantiomer in the mixture. A method is also provided for reacting a composition with a racemic diene mixture to generate a metathesis product that has an enantiomeric excess of at least 50%.Type: GrantFiled: February 19, 1998Date of Patent: September 19, 2000Assignee: Massachusetts Institute of TechnologyInventors: Richard R. Schrock, John B. Alexander
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Patent number: 6110878Abstract: Oil-soluble or oil-dispersible trinuclear molybdenum-sulfur compounds are made by reacting less than three, such as 1.5 to 2.5, preferably two to 2.1, molar equivalents of a disulfide with one molar equivalent of a compound containing the [Mo.sub.3 S.sub.13 ].sup.2- ion. The trinuclear compounds include S-containing ligands that are derived from the disulfide reactant via cleavage of the disulfide bond; the ligands are bound to the core via the S atoms.Type: GrantFiled: December 11, 1998Date of Patent: August 29, 2000Assignee: Exxon Chemical Patents IncInventors: Jonathan M. McConnachie, Edward Ira Stiefel, Ian Alexander Weston Bell, Velautha-Cumaran Arunasalam
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Patent number: 6096693Abstract: The present invention is directed to a zinc-molybdenum-based dithiocarbamate derivative which is a complex salt having the metallic components of zinc and molybdenum in the same molecule. When used as a lubricant additive, it imparts a notable friction-reducing effect to the lubricant composition in which it is incorporated, reducing its friction coefficient and improving its stability of friction coefficient at both low and high temperature, particularly at high temperature. In particular, it improves friction-related characteristics much more notably than a combination of a molybdenum and zinc compound.Type: GrantFiled: February 23, 1999Date of Patent: August 1, 2000Assignee: Tonen CorporationInventors: Hiroshi Nakanishi, Hiroyuki Iwasaki, Katsuya Koganei
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Patent number: 6077965Abstract: In metal complexes of the formula I ##STR1## the substituents have the following meanings: M is a metal of transition group III, IV, V or VI of the Periodic Table of the Elements or a metal of the lanthanide series,Y is a negative leaving atom or a negative leaving group,X and X.sup.1 are negatively charged or uncharged atoms of main group IV, V or VI of the Periodic Table of the Elements,Z is hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl, C.sub.1 -C.sub.10 -alkoxy, C.sub.1 -C.sub.10 -alkylthio or dialkylamido having from 1 to 4 carbon atoms in each alkyl radical,R.sup.1 to R.sup.11 are hydrogen, carboorganic or organosilicon radicals,n is 0, 1 or 2 andthe valence of M is 2+n.Type: GrantFiled: April 14, 1999Date of Patent: June 20, 2000Assignee: BASF AktiengesellschaftInventors: Michael Geprags, Rainer Sturmer, Horst Weiss, Susanne Steiger
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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: 6040432Abstract: The invention relates to diethylenetriaminepentaacetic acid derivatives, their complexes and complex salts, containing an element of atomic numbers 20-32, 39-51 or 57-83, pharmaceutical agents containing these compounds, their use as contrast media and antidotes and process for their production.Type: GrantFiled: June 7, 1995Date of Patent: March 21, 2000Assignee: Schering AktiengesellschaftInventors: Werner Krause, Franz-Karl Maier, Michael Bauer, Gabriele Schuhmann Giampieri, Wolf-Rudiger Press, Peter Muschik
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Patent number: 6037459Abstract: A method for the generation of ammonia from dinitrogen is provided including reacting a three coordinate, low oxidation state transition metal complex with dinitrogen under substantially atmospheric pressures to obtain a metal-nitrido complex, whereby the oxidation state of the metal complex increases, and reducing the metal of the metal nitrido complex in the presence of a hydrogen source, so as to obtain NH.sub.3. A novel metal complex is provided which is capable of cleaving small molecules which includes a metal selected from the group consisting of molybdenum, titanium, vanadium, niobium, tungsten, uranium and chromium. The compound may have the formula M(NR.sub.1 R.sub.2).sub.3 where M is a transition metal; R.sub.1 and R.sub.2 are independently selected from the group consisting of tertiary alkyls, phenyls and substituted phenyls. The compound permits cleavage of nitrogen--nitrogen triple bonds.Type: GrantFiled: April 29, 1997Date of Patent: March 14, 2000Assignee: Massachusetts Institute of TechnologyInventors: Christopher C. Cummins, Catalina E. Laplaza
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Patent number: 6034259Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear .alpha.-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected .alpha.-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected .alpha.Type: GrantFiled: July 10, 1997Date of Patent: March 7, 2000Assignees: E. I. du Pont de Nemours and Company, University of North Carolina Chapel HillInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 6002031Abstract: Metal alkoxyalkoxidecarboxylates wherein the alkoxy portion has 2-6 carbon atoms and the alkoxide portion has 2-6 carbon atoms are provided and are useful in forming films on a substrate.Type: GrantFiled: September 4, 1998Date of Patent: December 14, 1999Assignee: International Business Machines CorporationInventors: Peter Richard Duncombe, Deborah Ann Neumayer
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Patent number: 5986074Abstract: The present invention relates to novel metal chelates, exemplified as technetium-99m or rhenium chelates, and to the process of preparing such metal chelates from corresponding ligands. These ligands and their corresponding metal chelates are synthesized to have a cysteinylethylene (EC) structure, a monothiourea (MTU) structure, or a dithiourea (DTU) structure. The present invention further relates to a pharmaceutical composition comprising a metal chelate, for example, a .sup.99m Tc-chelate, to the use of the composition for renal imaging and examination of renal function, and to a kit for preparing such a composition prior to use.Type: GrantFiled: December 18, 1997Date of Patent: November 16, 1999Assignee: Emory UniversityInventors: Luigi G. Marzilli, Malgorzata Lipowska, Lory Hansen, Andrew Taylor, Jr.
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Patent number: 5955053Abstract: The present invention relates to novel metal chelates, exemplified as technetium-99m or rhenium chelates, and to the process of preparing such metal chelates from corresponding ligands. These ligands and their corresponding metal chelates are synthesized to have a cysteinylethylene (EC) structure, a thioacetamidethiourea (TATU) structure, or a dithiourea (DTU) structure. The present invention further relates to a pharmaceutical composition comprising a metal chelate, for example, a .sup.99m Tc-chelate, to the use of the composition for renal imaging and examination of renal function, and to a kit for preparing such a composition prior to use.Type: GrantFiled: May 6, 1996Date of Patent: September 21, 1999Assignee: Emory UniversityInventors: Luigi Gaetano Marzilli, Malgorzata Lipowska, Lory Hansen, Andrew Taylor, Jr.
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Patent number: 5908947Abstract: Improved precursors for use in chemical vapor deposition of thin films of low-valent metals are provided, which are sterically saturated and protected from attack of the coreactant in the gas phase. Specific precursors have the formulae:(L).sub.x M.sup.n+ (N(R.sup.1)(C(R.sup.2 R.sup.3)).sub.y N(R.sup.4 R.sup.5)).sub.z (I)(L).sub.x M.sup.n+ (N(R.sup.1)(C(R.sup.2 R.sup.3)).sub.y O(R.sup.4)).sub.z(II)(L).sub.x M.sup.n+ (N(R.sup.1)(C(R.sup.2 R.sup.3)).sub.y S(R.sup.4)).sub.z(III)wherein L is an auxiliary ligand; x is 0-6; M is a metal of valence 1 to 5; n is the oxidation state of the metal; R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are hydrogen or (C.sub.1 -C.sub.12) alkyl groups; y is 1-5, z is 1-n.Type: GrantFiled: August 21, 1997Date of Patent: June 1, 1999Assignee: Micron Technology, Inc.Inventor: Brian A. Vaartstra
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Patent number: 5908497Abstract: Organo-metal oxide chelates stable in aqueous compositions are provided by the reaction of metal alkoxide--where the metal is titanium, zinc, tungsten, or tin--and a polyalkylene glycol. Specific compounds are the reaction product of tetra alkyl titanates with diethylene glycol. Aqueous coating compositions containing the chelates may be applied to fiber glass at the filament stage or after forming into mats. When heat treated, the coated fiber glass serves as photocatalytic media.Type: GrantFiled: December 19, 1997Date of Patent: June 1, 1999Assignee: PPG Industries Ohio, Inc.Inventors: Anastasia Morfesis, Robert G. Swisher
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Patent number: 5906968Abstract: A method of making an oil-soluble or oil-dispersible trinuclear molybdenum-sulfur compound, comprising: reacting two to less than three equivalents of a tetrahydrocarbyl thiuram disulfide and one equivalent of a compound containing the ?Mo.sub.3 S.sub.13 !.sup.2- ion to produce a trinuclear molybdenum compound of the formula Mo.sub.3 S.sub.x (L).sub.4 wherein x is from 4 to 10 and L is dihydrocarbyl-dithiocarbamate.Type: GrantFiled: December 12, 1997Date of Patent: May 25, 1999Assignee: Exxon Research & Engineering CompanyInventors: Jonathan M. McConnachie, Edward I. Stiefel, Ian Alexander Weston Bell, Velautha-Cumaran Arunasalam
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Patent number: 5906994Abstract: A process for the preparation of multinuclear cluster compounds by reacting a metal carbonyl with iodine, and use of these clusters and clusters derived from them, in diagnostic imaging. Novel multinuclear cluster compounds are also disclosed.Type: GrantFiled: January 28, 1998Date of Patent: May 25, 1999Assignee: Nycomed Salutar, Inc.Inventors: John D. Franolic, Jeffrey R. Long, Richard H. Holm, Michael Droege, Shannan Downey
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Patent number: 5840897Abstract: A metalorganic complex of the formula:MA.sub.y Xwherein:M is a y-valent metal;A is a monodentate or multidentate organic ligand coordinated to M which allows complexing of MA.sub.y with X;y is an integer having a value of 2, 3 or 4; each of the A ligands may be the same or different; andX is a monodentate or multidentate ligand coordinated to M and containing one or more atoms independently selected from the group consisting of atoms of the elements C, N, H, S, O and F.The metal M may be selected from the group consisting of Cu, Ba, Sr, La, Nd, Ce, Pr, Sm, Eu, Th, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Bi, Tl, Y, Pb, Ni, Pd, Pt, Al, Ga, In, Ag, Au, Co, Rh, Ir, Fe, Ru, Sn, Li, Na, K, Rb, Cs, Ca, Mg, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W. A may be selected from the group consisting of .beta.-diketonates and their sulfur and nitrogen analogs, .beta.-ketoesters and their sulfur and nitrogen analogs, cyclopentadienyls, alkyls, perfluoroalkyls, alkoxides, perfluoroalkoxides, and Schiff bases.Type: GrantFiled: June 7, 1995Date of Patent: November 24, 1998Assignee: Advanced Technology Materials, Inc.Inventors: Peter S. Kirlin, Duncan W. Brown, Thomas H. Baum, Brian A. Vaarstra, Robin A. Gardiner
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Patent number: 5840947Abstract: The present invention relates to a metallocene compound of the formula IR.sup.5.sub.n Cp.sup.1 Cp.sup.2 M.sup.1 R.sup.1 R.sup.2 (I)where Cp.sup.1 and Cp.sup.2 are, independently of one another, identical or different and are each an unsubstituted or substituted cyclopentadienyl group, n=zero or 1, R.sup.5 is a bridge, M.sup.1 is a metal of group IVb, Vb or VIb of the Periodic Table of the Elements, R.sup.1 and R.sup.2 are identical or different and are each a hydrogen atom or a C.sub.1 -C.sub.40 -group, wherein at least one of the two groups Cp.sup.1 and Cp.sup.2 is a substituted cyclopentadienyl group which bears at least one cyclic C.sub.3 -C.sub.30 -group containing at least one heteroatom in the ring, or which bears a fused-on C.sub.2 -C.sub.30 ring system containing at least one heteroatom in the ring.The metallocene compound can be used as a catalyst component for olefin polymerization.Type: GrantFiled: May 16, 1996Date of Patent: November 24, 1998Assignee: Targor GmbHInventors: Frank Kuber, Michael Riedel, Bernd Bachmann, Andreas Winter
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Patent number: 5808122Abstract: The invention relates to an organometallic compound of the formula I ##STR1## where M is chromium, molybdenum or tungsten, L is a cyclopentadienyl ligand, T is a bridge, A is a cyclopentadienyl ligand or an electron donor and R.sup.1 are, independently of one another, identical or different C.sub.1 -C.sub.20 -hydrocarbon radicals or hydrogen. The organometallic compound is suitable as a catalyst component for olefin polymerization.Type: GrantFiled: May 8, 1996Date of Patent: September 15, 1998Assignee: Hoechst AktiengesellschaftInventors: Hans-Friedrich Herrmann, Frank Kuber, Wolfgang Anton Herrmann, Markus Morawietz
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Patent number: 5717121Abstract: A process for the preparation of multinuclear cluster compounds by reacting a metal carbonyl with iodine, and use of these clusters and clusters derived from them, in diagnostic imaging. Novel multinuclear cluster compounds are also disclosed.Type: GrantFiled: June 7, 1995Date of Patent: February 10, 1998Assignee: Nycomed Salutar, Inc.Inventors: John D. Franolic, Jeffrey R. Long, Richard H. Holm, Michael Droege, Shannan Downey
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Patent number: 5707913Abstract: Catalyst systems which are suitable for the polymerization of olefinically unsaturated hydrocarbons contain, as active components,A) an amidinato metal complex of the formula A ##STR1## where M is a metal from group IIIb, IVb, Vb or VIb of the Periodic Table of Elements or a metal from the lanthanide group,X is a negative leaving atom or a negative leaving group, and the radicals X may be identical or different if (n-m)>1,R.sup.1, R.sup.2 and R.sup.3 are each a C-organic or Si-organic radical,n is the valency of M in the metal complex A andm is from 1 to 5, with the proviso that n-m.gtoreq.0,and,B) an activator in a molar ratio of activator B to metal complex A of from 0.5:1 to 10,000:1.Type: GrantFiled: June 6, 1995Date of Patent: January 13, 1998Assignee: BASF AktiengesellschaftInventors: Ruger Schlund, Martin Lux, Frank Edelmann, Ulrike Reissmann, Wolfgang Rohde
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Patent number: 5698723Abstract: Disclosed is a process for the preparation of bistriphenylsilyl chromate, wherein triphenylchlorosilane, potassium dichromate and any one selected from alkali metal oxides, alkali hydroxides and alkali metal carbonates are reacted in, as solvent, a mixture of glacial acetic acid and a hydrocarbon solvent at a certain temperature, whereby bistriphenylsilyl chromate having high purity can be obtained with high yield.Type: GrantFiled: August 16, 1996Date of Patent: December 16, 1997Assignees: China Paeto-Chemical Corporation, Research Institute of Petroleum Processing SINOPECInventors: Longxiu Dai, Qiwei Duan, Hongbo Ji, Xiaoyuan Wang, Jinqiang Mo, Jinfeng Wang, Hongmei Liu, Xiuqin Li, Jiuhua Chen, Ping Gao
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Patent number: 5688733Abstract: The present invention relates to a catalyst. The catalyst contains a transition metal-imidoaryl complex which contains at least one amido group bound to the transition metal and wherein the aryl group is a 2,6-di-substituted phenyl group. The catalyst can be used in polymerizing olefins. The transition metal is chosen from groups 3-6 of the periodic table.Type: GrantFiled: June 1, 1995Date of Patent: November 18, 1997Assignee: DSM N.V.Inventors: Jacob Renkema, Jeroen H. G. Konings
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Patent number: 5681973Abstract: Heteropolyoxometallates of tungsten, molybdenum and vanadium with a structurally defined micropore volume, a method of production by means of the hydrothermal reaction of the appropriate metal with an associated oxide, a diamine, phosphoric acid and water, and the use of the novel compounds as catalysts.Type: GrantFiled: July 13, 1995Date of Patent: October 28, 1997Assignee: Degussa AktiengesellschaftInventors: Wolfgang Hoelderich, Markus Hoelscher, Goetz-Peter Schindler, Ulli Englert, Bodo Zibrowius, Dietrich Arntz
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Patent number: 5663393Abstract: Chiral catalysts for enantioselectively epoxidizing a prochiral olefin and for enantioselectively oxidizing a prochiral sulfide are disclosed, together with methods of using such catalysts. In accordance with one aspect of the invention, the catalyst is a salen derivative which has the following general structure: ##STR1## In accordance with another aspect of the present invention is a method of, producing an epoxychroman using a chiral catalyst. In accordance with this method, a chromene derivative, an oxygen atom source, and a chiral catalyst are reacted under such conditions and for such time as is needed to epoxidize said chromene derivative. In accordance with yet another aspect of this invention is a method of enantioselectively epoxidizing a cis-cinnamate derivative to make taxol or an analog thereof. In accordance with another aspect a method of disproportionation of hydrogen peroxide using the catalysts of the present invention is disclosed.Type: GrantFiled: June 6, 1995Date of Patent: September 2, 1997Assignee: Research Corporation Technologies, Inc.Inventors: Eric N. Jacobsen, Wei Zhang, Li Deng
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Patent number: 5641472Abstract: The present invention provides new tri-tungsten compounds of the general structure: ##STR1## wherein R.sup.1 is --C.sub.k H.sub.1 Z.sub.m or --(C.sub.k H.sub.1 Z.sub.n) (C.sub.6 H.sub.(5-q) Z.sub.q).sub.p ; R.sup.2 is --C.sub.k H.sub.1 Z.sub.m or --(C.sub.k H.sub.1 Z.sub.n) (C.sub.6 H.sub.(5-q) Z.sub.q).sub.p ; R.sup.3 is --C.sub.k H.sub.1 Z.sub.m or --(C.sub.k H.sub.1 Z.sub.n) (C.sub.6 H.sub.(5-q) Z.sub.q).sub.p ; R.sup.4 is --(C.sub.k H.sub.1 Z.sub.m) or --(C.sub.k H.sub.1 Z.sub.n) (C.sub.6 H.sub.(5-q) Z.sub.q).sub.p ; R.sup.5 is --C.sub.k H.sub.1 Z.sub.m or --(C.sub.k H.sub.1 Z.sub.n) (C.sub.6 H.sub.(5-q) Z.sub.q).sub.p ; R.sup.6 is --C.sub.k H.sub.1 Z.sub.m or --(C.sub.k H.sub.1 Z.sub.n) (C.sub.6 H.sub.(5-q) Z.sub.q).sub.p ; Z is a functional group attachable on aliphatic chains or aromatic rings; R.sup.7 is an anionic molecule, neutral molecule, --C.sub.k H.sub.1 Z.sub.m or --(C.sub.k H.sub.1 Z.sub.n) (C.sub.6 H.sub.(5-q) Z.sub.q).sub.p ; R.sup.8 is an anionic molecule, neutral molecule, --C.sub.k H.sub.Type: GrantFiled: July 20, 1995Date of Patent: June 24, 1997Inventors: Ella Y. Fung, Stephen R. Cooper
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Patent number: 5639900Abstract: Molybdenum and tungsten compounds that are useful as catalyst precursors in the metathesis of olefins have the general formula:M(Y) (OR.sup.2).sub.x (R.sup.3).sub.y (X).sub.z L.sub.swherein M is tungsten or molybdenum; Y is oxygen or NR.sup.1 ; R.sup.1, R.sup.2, and R.sup.3 are the same or different and are selected from alkyl, cycloalkyl, cycloalkenyl, polycycloalkyl, polycycloalkenyl, haloalkyl, haloaralkyl, substituted or unsubstituted aralkyl and aryl groups, and silicon-containing analogs thereof; L is a Lewis base; X is halogen; s is 0 or 1; x+y+z=4, and y.gtoreq.1, provided that when x is 2 or more, two OR.sup.2 groups can be replaced by a chelating ligand (OR.sup.2).sub.2.These compounds can be used for the metathesis of olefins in neat metathesizable olefin, as well as in solution, and require only the input of energy to be converted to active catalysts.Type: GrantFiled: December 29, 1993Date of Patent: June 17, 1997Assignee: Metton America, Inc.Inventors: Andrew Bell, Tim Joseph Coffy
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Patent number: 5637739Abstract: Methods of using chiral catalysts for enantioselectively epoxidizing a prochiral olefin and for enantioselectively oxidizing a prochiral sulfide are disclosed. In accordance with one aspect of the invention, the catalyst used is a salen derivative which has the following general structure: ##STR1## In accordance with another aspect of the present invention is a method of producing an epoxychroman using a chiral catalyst. In accordance with this method, a chromene derivative, an oxygen atom source, and a chiral catalyst are reacted under such conditions and for such time as is needed to epoxidize said chromene derivative. In accordance with yet another aspect of this invention is a method of enantioselectively epoxidizing a cis-cinnamate derivative to make taxol or an analog thereof. In accordance with another aspect a method of disproportionation of hydrogen peroxide using the catalysts of the present invention is disclosed.Type: GrantFiled: October 15, 1992Date of Patent: June 10, 1997Assignee: Research Corporation Technologies, Inc.Inventors: Eric N. Jacobsen, Wei Zhang, Li Deng
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Patent number: 5616312Abstract: The present invention provides new and structurally diverse compositions comprising compounds of the general formula: ##STR1## Wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are the same or different and are --CO--(CH.sub.2).sub.y --SH, --(CH.sub.2).sub.2 --SH, --SO.sub.2 --(SH.sub.2).sub.t --SH,--SH,--(CH.sub.2).sub.q --COOH, and --(CH.sub.2).sub.v --CONR.sup.6 R.sup.7, provided at least one of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 is a sulfur containing moiety; n is 0 to about 10; i is 2 to about 5; j is 2 to about 5; y is 1 to about 5; z is 1 to about 6; t is 1 to about 5; q is 1 to about 5; v is 1 to about 5; R.sup.6 is H, alkyl, hydroxyalkyl, polyhydroxyalkyl, arylalkyl or alkoxyalkyl; R.sup.7 is H, alkyl, hydroxyalkyl, polyhydroxyalkyl, arylalkyl or alkoxyalkyl; and R.sup.7 can be polyamine when R.sup.6 is H.Methods for imaging using compositions of the invention are also provided.Type: GrantFiled: March 10, 1995Date of Patent: April 1, 1997Assignee: Mallinckrodt Medical, Inc.Inventor: Leonard O. Rosik
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Patent number: 5606085Abstract: Molybdenum and tungsten compounds that are useful as catalyst precursors in the metathesis of olefins have the general formula:M(Y)(OR.sup.2).sub.x (R.sup.3).sub.y (X).sub.z L.sub.swherein M is tungsten or molybdenum; Y is oxygen or NR.sup.1 ; R.sup.1, R.sup.2, and R.sup.3 are the same or different and are selected from alkyl, cycloalkyl, cycloalkenyl, polycycloalkyl, polycycloalkenyl, haloalkyl, haloaralkyl, substituted or unsubstituted aralkyl and aryl groups, and silicon-containing analogs thereof; L is a Lewis base; X is halogen; s is 0 or 1; x+y+z=4, and y.gtoreq.1, provided that when x is 2 or more, two OR.sup.2 groups can be replaced by a chelating ligand (OR.sup.2).sub.2.These compounds can be used for the metathesis of olefins in neat metathesizable olefin, as well as in solution, and require only the input of energy to be converted to active catalysts.Type: GrantFiled: October 5, 1995Date of Patent: February 25, 1997Assignee: Metton America, Inc.Inventors: Andrew Bell, Tim J. Coffy