Iron, Cobalt, Or Nickel Containing (fe, Co, Or Ni) Patents (Class 556/138)
  • Patent number: 6683141
    Abstract: A complex suitable for the polymerization of l-olefins is disclosed, having the Formula A wherein M is a transition metal, lanthanide or actinide; X represents an atom or group covalently or ionically bonded to the transition metal M; b is the valency of the atom or group X; Z1 is N or P; Z2 is N, P, N−, P−or NR5; Z3 is one of N, P, O, S, NHR3, NR3R4, OH, OR3, SH, SR3, PHR3, PR3R4, (NR3)−, O−, S−, (PR3)−, P(R3R4)O, NR3 or PR3 to the proviso that one of Z2 and Z3 is anionic; T is the oxidation state of the transition metal M when both Z2 or Z3 are neutral, and is one less than the oxidation state of M when one of Z2 or Z3 is anionic; A and B are independently hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl, and may together with Z2 form part of a heterocyclic substituent; B may be joined to Z3 by either a single or a double bond; R1 to R5 are each independently selected from hydrogen, halogen, hydrocarbyl, substitute
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: January 27, 2004
    Assignee: BP Chemicals Limited
    Inventors: Vernon Charles Gibson, Brian Stephen Kimberley, Gregory Adam Solan
  • Patent number: 6680365
    Abstract: Methods and compositions for the generation of polypeptides having varied material properties are disclosed herein. Methods include means for making block copolypeptides and related protocols for adding aminoacid-N-carboxyanhydrides (NCAs) to polyaminoacid chains by exposing the NCA to solutions containing polyaminoacid chains having an amido amidate metallacyle end groups and reacting the NCA with the amido containing metallacyle end group so that the NCA is added to the polyaminoacid chain. Addition methods include means of controlling the addition of aminoacid-N-carboxyanhydrides to polyaminoacid chains by reacting NCAs with initiator molecules and allowing initiator complexes to open the ring of the NCAs through oxidative addition across either the O—C5 or O—C2 anhydride bond resulting a controlled polypeptide polymerization. Novel compositions for use in peptide synthesis and design including five and six membered amido-containing metallacycles and block copolypeptides are also disclosed.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: January 20, 2004
    Assignee: The Regents of the University of California
    Inventor: Timothy J. Deming
  • Patent number: 6677268
    Abstract: An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: January 13, 2004
    Assignee: Institut Francais du Petrole
    Inventors: Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine
  • Publication number: 20040006166
    Abstract: In accordance with the present invention, there are provided novel coupling agents which are compatible with a wide variety of adhesive formulations and which provide substantial adhesion enhancement relative to base formulations to which they are added. Invention compounds comprise at least one free-radically polymerizable group (other than acrylate) and at least one reactive moiety which forms covalent bond(s) with substrates having free hydroxyl groups on the surface thereof. Thus, invention compounds are covalently linked to adhesive formulations upon free radical cure, while at the same time providing “residual” functionality which is capable of undergoing reaction with any substrate having reactive (e.g., hydroxyl) groups in the surface thereof.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 8, 2004
    Applicant: Henkel Loctite Corporation
    Inventors: Puwei Liu, Stephen M. Dershem, Benjamin Neff, Maria Villegas
  • Patent number: 6660892
    Abstract: 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: Grant
    Filed: February 7, 2003
    Date of Patent: December 9, 2003
    Assignee: Shell Oil Company
    Inventors: Joseph Broun Powell, Paul Richard Weider, John Frederick Knifton, Kevin Dale Allen, Lynn Henry Slaugh, Juan Pedro Arhancet
  • Patent number: 6632922
    Abstract: Methods and compositions for the generation of polypeptides having varied material properties are disclosed herein. Methods include means for making self assembling amphiphilic block copolypeptides and related protocols adding oligo(ethyleneglycol) functionalized aninoacid-N-carboxyanhydrides (NCAs) to polyaminoacid chains. Additional methods include means of adding an end group to the carboxy terminus of a polyaminoacid chain by reacting an alloc-protected amino acid amide with a transition metal-donor ligand complex, thereby forming an amido-amidate metallacycle for use in further polymerization reactions. Novel compositions for use in peptide synthesis and design including five and six membered amido-containing metallacycles and block copolypeptides are also disclosed.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: October 14, 2003
    Assignee: The Regents of the University of California
    Inventors: Timothy J. Deming, Miaoer Yu, Scott A. Curtin, Jungyeon Hwang, Michael D. Wyrsta
  • Publication number: 20030181320
    Abstract: The present invention relates to ferroxanes and a method of making wherein a ferroxane may be defined by the general formula [Fe(O)x(OH)y(O2CR)z]n wherein x, y and z may be any integer or fraction such that 2x+y+z=3 and n may be any integer. The ferroxanes may be doped with at least one other element other than iron. The present invention further relates to a ceramic made from the ferroxanes of the present invention and a method of making. The present invention still further relates to supported and unsupported membranes made from the ceramic of the present invention.
    Type: Application
    Filed: January 24, 2003
    Publication date: September 25, 2003
    Inventors: Jerome Rose, Mark Wiesner, Andrew Barron
  • Patent number: 6613915
    Abstract: Selected olefins such as ethylene and &agr;-olefins are polymerized by nickel [II] complexes of certain monoanionic ligands. The polyolefins are useful in many applications such as molding resins, film, fibers and others. Also described are many novel nickel compounds and their precursors, as well a novel ligands.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: September 2, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Lynda Kaye Johnson, Alison Margaret Anne Bennett, Lin Wang, Anju Parthasarathy, Elisabeth Hauptman, Robert D. Simpson, Jerald Feldman, Edward Bryan Coughlin, Steven Dale Ittel
  • Publication number: 20030119660
    Abstract: 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: Application
    Filed: September 30, 2002
    Publication date: June 26, 2003
    Inventors: Wolfgang A. Herrmann, Karin Denk
  • Patent number: 6576475
    Abstract: A Bis (cyclopentadienyl) metal complex of a derivative thereof is used as a label in an assay utilizing electrichemiluminescence or fluorescence detection means. The Bis (cyclopentadienyl) metal complex may comprise ferrocene or a derivative thereof which gives rise to a ferricinium ion on electrochemical oxidation.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: June 10, 2003
    Assignee: University of Liverpool
    Inventors: David Schiffrin, Robert Wilson
  • Patent number: 6562973
    Abstract: Methods for making Group VIII metal bis(imine) complexes are disclosed. Each method uses a single reactor that is equipped with an internal filter to facilitate preparation and purification of the complex under an inert atmosphere. The complexes, which are useful in catalyst systems for olefin polymerization, are prepared in either one or two reaction steps. Surprisingly, the single-reactor approach to preparation and purification enables the efficient preparation of exceptionally high (>90%) yields of desirable Group VIII metal bis(imine) complexes.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: May 13, 2003
    Assignee: Equistar Chemicals, LP
    Inventor: Jia-Chu Liu
  • Publication number: 20030055299
    Abstract: An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium coordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion.
    Type: Application
    Filed: July 12, 2002
    Publication date: March 20, 2003
    Applicant: Institut Francais du Petrole
    Inventors: Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine
  • Publication number: 20030050494
    Abstract: Alpha-olefins are manufactured in high yield and with very high selectivity by contacting ethylene with an iron complex of a selected 2,6-pyridinedicarboxaldehyde bisimine or a selected 2,6-diacylpyridine bisimine, and in some cases a selected activator compound such as an alkyl aluminum compound. Novel bisimines and their iron complexes are also disclosed. The &agr;-olefins are useful as monomers and chemical intermediates.
    Type: Application
    Filed: September 5, 2002
    Publication date: March 13, 2003
    Inventors: Maurice S. Brookhart, Brooke L. Small
  • Patent number: 6515156
    Abstract: The invention provides a metal complex comprising a ligand and a metal. The ligand is an aminophosphine compound represented by the following formula (1) [Each Ar represents an aryl group optionally substituted with a halogen atom, a lower alkyl group having 1 to 4 carbon atom or an alkoxy group, both Ar's being same or different with each other. R1 and R2 represent hydrogen atom, a cycloalkyl group having 5 to 7 carbon atoms, or an alkyl group having 1 to 6 carbon atom optionally substituted with a halogen atom, a lower alkoxy group or phenyl group, with R1 and R2 being same or different with each other.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: February 4, 2003
    Assignee: Takasago International Corporation
    Inventors: Sumi Kenzo, Noyori Ryoji, Ikariya Takao
  • Patent number: 6511936
    Abstract: 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 donor
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: January 28, 2003
    Assignees: 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
  • Publication number: 20030013859
    Abstract: Compounds able to chelate bi- and trivalent paramagnetic metal ions, their chelated complexes with said metal ions and the physiologically compatible salts thereof, as well as the use thereof as contrast agents in the technique known as “Magnetic Resonance Imaging” (M.R.I.).
    Type: Application
    Filed: September 24, 2001
    Publication date: January 16, 2003
    Inventors: Maurizio Franzini, Andrea Beltrami, Luisella Calabi, Alessandro Maiocchi, Mario Virtuani, Pier Lucio Anelli, Kondareddiar Ramalingam, Ramachandran S. Ranganathan
  • Patent number: 6489497
    Abstract: Alpha-olefins are manufactured in high yield and with very high selectivity by contacting ethylene with an iron complex of a selected 2,6-pyridinedicarboxaldehyde bisimine or a selected 2,6-diacylpyridine bisimine, and in some cases a selected activator compound such as an alkyl aluminum compound. Novel bisimines and their iron complexes are also disclosed. The &agr;-olefins are useful as monomers and chemical intermediates.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: December 3, 2002
    Assignees: E. I. du Pont de Nemours and Company, University of North Carolina
    Inventors: Maurice S. Brookhart, III, Brooke L. Small
  • Publication number: 20020134124
    Abstract: The present invention relates to the use of diureides of dicarboxylic acids of the formula I 1
    Type: Application
    Filed: December 3, 2001
    Publication date: September 26, 2002
    Inventors: Klaus Horchler von Locquenghien, Klaus Erhardt, Wolfgang Weigelt, Jurgen Dressel, Alexander Wissemeier, Frank Boerner, Gerhard Kossmehl
  • Patent number: 6441164
    Abstract: Wurster's crown ligands comprise a macrocyclic ligand such as a crown ether in which a hetero atom is substituted with a 1,4-phenylenediamine group. The phenylenediamine group is covalently bound to the macrocyclic ligand by one or both of the amine nitrogens, the amine nitrogen thereby substituting for the hetero atom of the macrocyclic ligand. The resulting compounds are redox active. Methods of making and using the compounds are also disclosed.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: August 27, 2002
    Assignee: East Carolina University
    Inventor: John W. Sibert
  • Patent number: 6433270
    Abstract: 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: Grant
    Filed: September 25, 2000
    Date of Patent: August 13, 2002
    Assignee: California Institute of Technology
    Inventor: Jeffrey J. Rack
  • Publication number: 20020087006
    Abstract: This invention is directed to alkyl cobalt (III) dioximates and methods for making these dioximates.
    Type: Application
    Filed: April 30, 2001
    Publication date: July 4, 2002
    Inventors: Alexei A. Gridnev, Gregorii A. Nikiforov
  • Patent number: 6403738
    Abstract: 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: Grant
    Filed: July 28, 1999
    Date of Patent: June 11, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Lynda Kaye Johnson, Lissa Taka Jennings Nelson
  • Patent number: 6395668
    Abstract: It is disclosed a new catalyst system for the polymerization of olefins comprising the product obtainable by contacting the following components: (A) one or more compounds of a late transition metal belonging to Group 8-11 of the Periodic Table; and (B) the reaction product of water with one or more organometallic aluminum compounds of formula (IV): Al(CH2—CR3R4R5)xR6yHz, wherein R3 is a C1-C20 alkyl, C3-C20 cycloalkyl or C7-C20 alkylaryl radical; R4 is different from a straight alkyl and is a C3-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 alkylaryl or C7-C20 arylalkyl radical; or R3 and R4 form together a C4-C6 ring; R5 is hydrogen or a C1-C20 alkyl, C6-C20 aryl, C7-C20 alkylaryl or arylalkyl radical; R6 is a C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 alkylaryl or C7-C20 arylalkyl radical; x is 1-3; z is 0-1; and y is 3−x−z; the molar ratio between said organometallic aluminum compound and water being comprised between 0.5:1 and 100:1.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: May 28, 2002
    Assignee: Basell Technology Company BV
    Inventors: Jan F. van Baar, Peter A. Schut, Andrew D. Horton, Tiziano Dall'Occo
  • Publication number: 20020058768
    Abstract: Methods for preparing olefin polymers, and catalysts for preparing olefin polymers are disclosed. The polymers can be prepared by contacting the corresponding monomers with a Group 8-10 transition metal catalyst and a solid support. The polymers are suitable for processing in conventional extrusion processes, and can be formed into high barrier sheets or films, or low molecular weight resins for use in synthetic waxes in wax coatings or as emulsions.
    Type: Application
    Filed: October 30, 2001
    Publication date: May 16, 2002
    Inventors: Peter Borden Mackenzie, Leslie Shane Moody, Christopher Moore Killian, Gino Georges Lavoie
  • Patent number: 6380333
    Abstract: Olefin co- or homopolymers having a good molecular weight and short chain branching may be prepared in the presence of a pyridyl bridged bisphosphinimine complex of a Group 8, 9 or 10 metal.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: April 30, 2002
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Wei Xu, Qinyan Wang
  • Patent number: 6372931
    Abstract: A catalytic transfer hydrogenation process is provided. The catalyst employed in the process is a metal cyclopentadienyl complex which is coordinated to defined bidentate ligands. Preferred metals include rhodium, ruthenium and iridium. Preferred bidentate ligands are diamines and aminoalcohols, particularly those comprising chiral centers. The hydrogen donor is advantageously a secondary alcohol or a mixture of triethylamine and formic acid. The process can be employed to transfer hydrogenate ketones and imines, which are preferably prochiral. Catalysts for use in such a process are also provided.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: April 16, 2002
    Assignee: Avecia Limited
    Inventors: Andrew John Blacker, Ben James Mellor
  • Patent number: 6365690
    Abstract: Ethylene is polymerized by novel nickel or iron complexes of selected novel 2,2-bipyridine-6-imines, optionally with the addition of other cocatalysts. The polymers are useful for films and molding resins.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: April 2, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Geraldine Marie Lenges
  • Patent number: 6365539
    Abstract: This invention is directed to novel Group 8-10 transition metal catalysts and to batch or continuous polymerizations using these catalysts. The catalysts of the present invention readily convert ethylene and &agr;-olefins to high molecular weight polymers, and allow for olefin polymerizations under various conditions, including ambient temperature and pressure, and in solution. Preferred catalysts are group 8-10 transition metals having certain dipyridyl ligands bonded thereto.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: April 2, 2002
    Assignee: Eastman Chemical Company
    Inventors: James Allen Ponasik, Jr., Peter Borden Mackenzie, Christopher Moore Killian
  • Patent number: 6362354
    Abstract: Phosphonite ligands, catalyst compositions containing such ligands and a hydroformylation process using such catalyst compositions involving a bidentate phosphonite ligand having the structure represented by the following wherein the Ar groups are either the same or different unbridged organic aromatic groups such as substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, mixtures thereof or the like are disclosed. The ligands in combination with a Group VIII metal or Group VIII metal compound are particularly useful in a hydroformylation process for reacting an ethylenically unsaturated compound to produce linear alkenals at high selectivity.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: March 26, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Emilio Enrique Bunel, Kathryn E. Schwiebert
  • Publication number: 20020010352
    Abstract: The present invention relates to a bidenitate diimino-complex of nickel or palladium containing at least one group OSi(R)3 wherein each R, equal to or different from each other, is selected from the group consisting of: C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C2-C20 alkenyl, C7-C20 arylalkyl, C7-C20 alkylaryl, C8-C20 arylalkenyl, and C8-C20 alkenylaryl, linear or branched, preferably each R is independently methyl, ethyl or propyl.
    Type: Application
    Filed: March 12, 2001
    Publication date: January 24, 2002
    Applicant: REPSOL QUIMICA S.A.
    Inventors: Luis Mendez Llatas, Antonio Munoz-Escalona Lafuente, Juan Campora Perez, Ernesto Carmona Guzman, Manuel Lopez Reyes
  • Patent number: 6323353
    Abstract: The invention provides a metal complex comprising a ligand and a metal. The ligand is an aminophosphine compound represented by the following formula (1) The metal is rhodium, ruthenium, iridium or nickel.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: November 27, 2001
    Assignee: Takasago International Corporation
    Inventors: Kenzo Sumi, Ryoji Noyori, Takao Ikariya
  • Patent number: 6316652
    Abstract: 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: Grant
    Filed: June 6, 1995
    Date of Patent: November 13, 2001
    Inventor: Kosta Steliou
  • Patent number: 6310149
    Abstract: A catalyst is provided for addition polymerization of olefinically unsaturated monomers comprising a first compound MY, wherein M is a transition metal in a low valency state or a transition metal in a low valency state coordinated to at least one coordinating non-charged ligand, Y is a monovalent, divalent or polyvalent counterion; an initiator compound comprising a homolytically breakable bond with a halogen atom; and an organodiimine, where at least one of the nitrogens of the diimine is not part of an aromatic ring.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: October 30, 2001
    Assignee: University of Warwick
    Inventor: David Mark Haddleton
  • Patent number: 6303720
    Abstract: Methods for preparing olefin polymers, and catalysts for preparing olefin polymers are disclosed. The polymers can be prepared by contacting the corresponding monomers with a Group 8-10 transition metal catalyst. The polymers are suitable for processing in conventional extrusion processes, and can be formed into high barrier sheets or films, or low molecular weight resins for use in synthetic waxes in wax coatings or as emulsions.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: October 16, 2001
    Assignee: Eastman Chemical Company
    Inventors: Peter Borden Mackenzie, Leslie Shane Moody, Christopher Moore Killian, James Allen Ponasik, Jr., Jason Patrick McDevitt, Gino Georges Lavoie
  • Patent number: 6300435
    Abstract: Olefin Co- or homopolymers having a good molecular weight and short chain branching may be prepared in the presence of Group 8, 9 or 10 phosphinimine complex other than nickel.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: October 9, 2001
    Assignee: Nova Chemical (International) S.A.
    Inventors: Xiaoliang Gao, Qinyan Wang, Matthew Gerald Kowalchuk
  • Publication number: 20010027162
    Abstract: A transition metal compound represented by the general formula (2) or (3) described below, a catalyst component for olefin polymerization comprising said transition metal compound, a catalyst component for olefin polymerization using said transition metal compound and (C) and/or (D) described below, and a process for producing an olefinic polymer wherein olefins are homopolymerized or olefins are copolymerized with other olefins and/or other polymerizable unsaturated compound using said catalyst for olefin polymerization.
    Type: Application
    Filed: May 18, 2001
    Publication date: October 4, 2001
    Inventors: Wataru Hirahata, Makoto Itagaki, Kotohiro Nomura
  • Patent number: 6278056
    Abstract: A metal complex represented by the formula: (X)nML1L2, (X)2M(L1)2 or (L1)2ML2 wherein M represents a Group VIII metal, X represents a polar group, L1 represents a phenanthroline containing at least one carboxyl group which may be neutralized, L2 represents a nitrogen-containing polycyclic compound which may contain one or more substituents, and n is an integer of 1 or 2. A dye-sensitized oxide semiconductor electrode includes an electrically conductive body, an oxide semiconductor film provided on a surface of the electrically conductive body, and the above metal complex. A solar cell may be constructed from the above dye-sensitized oxide semiconductor electrode, a counter electrode, and a redox electrolyte contacting with both electrodes.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: August 21, 2001
    Assignee: Director-General of Agency of Industrial Science and Technology
    Inventors: Hideki Sugihara, Hironori Arakawa, Kazuhiro Sayama, Lok Pratap Singh, Mohammad Khaja Nazeeruddin, Michael Graetzel
  • Patent number: 6277305
    Abstract: The present invention relates to cobalt(II) oxide containing metallic cobalt, to a process for the production thereof and to the use thereof.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: August 21, 2001
    Assignee: H. C. Starck GmbH & Co. KG
    Inventors: Astrid Görge, Juliane Meese-Marktscheffel, Dirk Naumann, Armin Olbrich, Frank Schrumpf
  • Publication number: 20010014646
    Abstract: Provided are certain transition metal complexes which are useful as catalysts in the polymerization of olefinic monomers. In particular, the invention provides complexes of certain bidentate ligands bonded to Ni, Pd, Co, or Fe, and optionally, one or more neutral Lewis acids, and their use in the polymerization of olefins.
    Type: Application
    Filed: March 2, 2001
    Publication date: August 16, 2001
    Inventors: Peter Borden Mackenzie, Christopher Moore Killian, Leslie Shane Moody, Jason Patrick McDevitt
  • Patent number: 6274114
    Abstract: Process for preparing hydrogen peroxide, comprising the following steps: a) a step of reduction of dioxygen in acidic medium with a hydrophobic organometallic complex, and b) a step of separation of the oxidized organometallic complex resulting from step a) and of the hydrogen peroxide by liquid/liquid extraction.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: August 14, 2001
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Henry Ledon, Roger Guillard, Alain Tabard, Guy Royal, Gregory Broeker
  • Patent number: 6262258
    Abstract: Wurster's crown ligands comprise a macrocyclic ligand such as a crown ether in which a hetero atom is substituted with a 1,4-phenylenediamine group. The phenylenediamine group is covalently bound to the macrocyclic ligand by one or both of the amine nitrogens, the amine nitrogen thereby substituting for the hetero atom of the macrocyclic ligand. The resulting compounds are redox active. Methods of making and using the compounds are also disclosed.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: July 17, 2001
    Assignee: East Carolina University
    Inventor: John W. Sibert
  • Patent number: 6254850
    Abstract: 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: Grant
    Filed: January 10, 2000
    Date of Patent: July 3, 2001
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Krause, Franz-Karl Maier, Michael Bauer, Gabriele Schuhmann-Giampieri, Wolf-Rudiger Press, Peter Muschik
  • Patent number: 6245988
    Abstract: A photosensitizer complex of formulae (Ia) MX3Lt or (Ib) MXYLt in which M is a transition metal selected from ruthenium, osmium, iron, rhenium and technetium, preferably ruthenium or osmium; each X is a co-ligand independently selected from NCS—, Cl—, Br—, I—, CN—, NCO—, H2O, NCN2−; pyridine unsubstituted or substituted by at least one group selected from vinyl, primary, secondary or tertiary amine, OH and C1-30 alkyl, preferably NCS—; and Lt is a tridentate ligand comprising heterocycles such as pyridine, thiophene, imidazole, pyrazole, triazole, carrying at least one carboxylic, phosphoric, hydoxamic acid or a chelating group. A photovoltaic cell comprising an electrically conductive layer deposited on a support to which at least one titanium dioxide layer has been applied and, as a photosensitizer applied to the titanium dioxide layer, a photosensitizer complex of formula (Ia) or Ib) as specified above.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: June 12, 2001
    Assignee: Ecole Polytechnique Federale de Lausanne
    Inventors: Michael Grätzel, Mohammad Khaja Nazeeruddin, Péter Péchy
  • Patent number: 6229035
    Abstract: A method for producing aromatic amines such as N-phenyl-p-phenylenediamine is disclosed wherein an amine substituted aromatic such as aniline is oxidized with oxygen or hydrogen peroxide in the presence of a preferred alkali metal pentacyano ferrate(II) complex made using water soluble ferrous salts with a non-oxidizing anion, preferably, ferrous sulfate, and containing various water soluble ligands, such as ammonia, mono alkyl amine, dialkyl amines, and trialkyl amines. The complex is subsequently catalytically reduced by hydrogenation using certain heterogeneous metal catalysts to yield the desired aromatic amine.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: May 8, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Mark W. Simon
  • Patent number: 6146615
    Abstract: A compound of formula (I): ##STR1## wherein, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are selected independently from hydrogen, alkyl, and alkyl substituted with one or more --O-- atoms, or where R.sup.1, R.sup.2 and R.sup.3, R.sup.4 are ring residues. The compound is capable of functioning as a ligand and complexing with paramagnetic Fe(III) ion for use as a second-sphere contrast enhancing agent for magnetic resonance imaging of tissue, and a method of administering the second sphere contrast agent.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: November 14, 2000
    Assignees: The University of Toledo, Schering Aktiengesellschaft
    Inventors: Julian A. Davies, Wolfgang Ebert, Bernd Raduechel
  • Patent number: 6139882
    Abstract: A carbonate- and/or bicarbonate-iron-whey-proteolysate complex includes 1 to 1,000 atoms of iron and one or more molecules of carbonate and/or bicarbonate per one molecule of whey-protein as measured before whey proteolysis, and exhibits no specific iron taste. The carbonate- and/or bicarbonate-iron-whey proteolysate complex is used in drugs, foods, drinks, and animal feed for the purposes of an iron supplement for treatment and prevention of anemia.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: October 31, 2000
    Assignee: Snow Brand Milk Products Co., Ltd.
    Inventors: Akihito Ikenaga, Kaoru Sato, Toshio Sakurai, Toshiaki Uchida
  • Patent number: 6136224
    Abstract: 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: Grant
    Filed: August 28, 1996
    Date of Patent: October 24, 2000
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Jianzhou Wu, Norimasa Hirata, Takushi Yokoyama
  • Patent number: 6133387
    Abstract: Olefin co- or homopolymers having a good molecular weight and short chain branching may be prepared in the presence of a pyridyl bridged bisphosphinimine complex of a Group 8, 9 or 10 metal.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: October 17, 2000
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Wei Xu, Qinyan Wang
  • Patent number: 6124451
    Abstract: A process for the preparation of substituted amido phthalocyanines having the general formula I:MPc--(CONR.sup.1 R.sup.2).sub.n Ivia the reaction of a phthalocyanine carboxamide having the formula MPc(CONH.sub.2).sub.x wherein Pc is a Phthalocyanine ring; M is a hydrogen or a metal capable of forming a metal phthalocyanine such as Mg, Al, Ni, Fe, Zn, Pb, Sn or Cu and x is a number from 0.1 to 4.0, with an amine acid salt denoted by formula II: ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen; an alkyl group having 1-20 carbons; a cyclic alkyl group; an aryl group; an arylalkyl having 1-20 carbons; an alcohol group having 2-20 carbons; an alkyl amino alkyl group; an aliphatic amine having 1-20 carbons; an aliphatic amine acid salt having 1-20 carbons; polyoxyalkylene groups ranging in molecular weight 89-2000; polyoxyalkyleneamines ranging in molecular weight 148-4000; Z is the hydrogen sulphate or the hydrochloride salt of the amine.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: September 26, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Thomas Healy, Cairan Thomas Ewins
  • Patent number: RE37896
    Abstract: In a solution for forming electron-emitting regions of electron-emitting devices, the solution contains a metal carboxylate expressed by the following general formula (I), an organic solvent and/or , and water; (R(COO)k)mM  (I) where k=numeral from 1 to 4 , m=a numeral from 1 to 4, and R=CnX2n+1−k R=CnX2n+2−k where X=a hydrogen or halogen (total number of hydrogen and halogen atoms is 2n+1) , n=an integer from 0 to 30, and M=a metal, wherein the organic solvent is a carboxylic ester having the same carboxylic group as R(COO)k expressed in the general formula (I). In a manufacture method of electron-emitting devices each provided between electrodes with a conductive film including an electron-emitting region, a process of forming the conductive film includes a step of coating and calcining the above solution. An image-forming apparatus is manufactured by using the electron-emitting devices.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: October 29, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshinori Tomida, Hiroyuki Hashimoto