Patents Examined by J. Pasterczyk
  • Patent number: 7244795
    Abstract: The present invention relates to a polymerization process using improved metallocene catalyst systems. Specifically, the catalyst systems of the present invention relate to a metallocene compound having optimized metals loading and activator concentration, and demonstrate improved operability and productivity. In an exemplary embodiment, the improved metallocene catalyst system of the present invention comprises a metallocene catalyst compound activated by methylaluminoxane, and a support material, the methylaluminoxane being present in the range of from 3 to 9 mmole methylaluminoxane per gram of support material, and the metallocene being present in the range of from 0.01 to 1.0 mmole metallocene per gram of support material.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: July 17, 2007
    Assignee: Univation Technologies, LLC
    Inventors: Agapios Kyriacos Agapiou, David Michael Glowczwski
  • Patent number: 7199255
    Abstract: The present invention provides a catalyst precursor, a catalyst system comprising the precursor, and a polymerization method using the catalyst system, an embodiment of the precursor is selected from the following structures: wherein T is a bridging group; M is selected from Groups 3 to 13 atoms, and the Lanthanide series of atoms the Periodic Table of the Elements; Z is a coordination ligand; each L is a monovalent, bivalent, or trivalent anionic ligand; X and Y are each independently selected from nitrogen, oxygen, sulfur, and phosphorus; each R can be the same or different and is a bulky substituent that is sterically hindering with respect to X and Y.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: April 3, 2007
    Assignee: Univation Technologies, LLC
    Inventors: Rex Eugene Murray, Arnold M. Harrison
  • Patent number: 7199075
    Abstract: A catalyst for the oligomerization of olefins, especially ethylene contains: at least one nickel complex e.g. Li2 Ni X2 that results from bringing into contact a nickel salt e.g. a nickel carboxylate with a bidentate chelating ligand containing a nitrogen-containing heterocyclic compound with an alcohol e.g. Ha-C(OH)RR?; and at least one hydrocarbylaluminum compound from tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds or at least one aluminoxane.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: April 3, 2007
    Assignee: Institut Francais du Petrole
    Inventors: Fredy Speiser, Pierre Braunstein, Lucien Saussine
  • Patent number: 7176950
    Abstract: A process for the preparation of a pyridinyl-linked bis-amino ligand that comprises, (a) reacting 2,6-dibromophenyl amine with an arylboronic acid component which is substituted or unsubstituted to produce a 2,6-diarylphenyl amine which is substituted or unsubstituted; (b) reacting the 2,6-diarylphenyl amine with a 2,6-dialkanoic pyridine characterized by the formula: wherein R? and R? are each independently a C1–C20 hydrocarbyl group; to produce a mono-imine ligand characterized by the formula: wherein TRP is a terphenyl group which is substituted or unsubstituted; and (c) reacting the mono-imine ligand with an aniline which may be substituted or unsubstituted to produce a bis-amine ligand characterized by the structure: wherein: TRP is a substituted or unsubstituted terphenyl group; and AR is a substituted or unsubstituted aryl group.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: February 13, 2007
    Assignee: Fina Technology, Inc.
    Inventors: Abbas Razavi, Vladimir P. Marin, Margarito Lopez
  • Patent number: 7176158
    Abstract: Copolymerization of Ni(H) or Co(II) acenaphthene diimine complexes containing olefinic substituents on aryl groups in the presence of a free radical initiator results in polymerized late transition metal catalysts which can be used for olefin polymerization or oligomerization. These catalysts have high catalyst activity for olefin polymerization or oligomerization.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: February 13, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stanley Wai-Yan Chow, Guo-Xin Jin, Zerong Lin, Robert J. Wittenbrink, Dao Zhang
  • Patent number: 7172988
    Abstract: A catalyst component for ethylene polymerization, including an inorganic oxide support, and at least one alkyl metal compound, at least one halide, at least one dihydrocarbyl magnesium compound, at least one difunctional compound that reacts with the dihydrocarbyl magnesium compound and at least one titanium compound, wherein the difunctional compound is a mono-, di- or multi-halogenated alcohol or phenol having from 2 to 20 carbon atoms; or a mono-, di- or multi-halogenated acyl halide having from 2 to 20 carbon atoms. Also, a process for preparing the catalyst component and use thereof.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: February 6, 2007
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry
    Inventors: Kejing Gao, Dongbing Liu, Wei Chen, Guirong Fan, Xinping Lu, Jingyan An, Ying Guan, Jun Zhang, Qinfang Zhao
  • Patent number: 7166265
    Abstract: A process for the preparation of mesostructured organofunctional silica and silica-alumina compositions using a hydrolyzable organosilane compound is described. The process uses a water soluble silicate to form the compositions, which have hexagonal, wormhole or foam mesostructures. The compositions are useful for catalytic and sorption applications.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: January 23, 2007
    Assignee: Board of Trustees of Michigan State University
    Inventors: Thomas J. Pinnavaia, Jainisha R. Shah, Seong-Su Kim
  • Patent number: 7163907
    Abstract: This invention relates to a catalyst system for the production of polyolefins comprising: (A) a Group IV B transition metal component represented by one of the two general formulae wherein (C5H5-y-xRx) is a cylopentadienyl ring (JR?z-l-y) is a heteroatom ligand in which J is an element with a coordination number of three from Group V-A or an element with a coordination number of two rom Group VI-A of the Periodic Table of Elements, each Q is independently, hydride, C1—C20 hydrocarbyl radicals, substituted hydrocarbyl radials wherein one or more hydrogen atoms is replaced by an electron withdrawing group, or C1—C20 hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from the group consisting of germanium and silicon, provided that Q is not a substituted or unsubstituted cyclopentadienyl ring, or both Q together may be an alkylidene, olefin, acetylene or a cyclometallated hydrocarbyl; “y” is 0 or 1; when “y” is 1, T is a covalent bridging group containing a Group IV-A or V-A element
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: January 16, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann Marie Canich, Howard William Turner, Gregory George Hlatky
  • Patent number: 7160836
    Abstract: The invention describes materials comprising organic groups containing sulphur and phosphorous bonded together by a hydrocarbon chain and bonded via phosphorous and oxygen atoms to a mineral oxide of an element M, said materials being characterized in that they comprise M-O-M? bonds, M?representing an element of a mineral oxide identical to or different from M, in that the ratio of the element M to the phosphorous is about 0.5: 1 to about 500:1 and in that each phosphorous atom of the phosphorous-containing groups forms at least one P—O-M bond and/or P—O-M? bond. The invention also describes a process for preparing such materials.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: January 9, 2007
    Assignee: Institut Francois du Petrole
    Inventors: Alain Forestiere, P. Hubert Mutin, Andre Vioux, Gilles Guerrero
  • Patent number: 7148173
    Abstract: Heterogeneous catalytic compositions obtained by reacting a porous inorganic support with an alumoxane and subsequently supporting at least one metallocene compound thereon. A process for polymerization of ?-olefins in a slurry or in a gas phase, the process catalyzed by such heterogeneous catalytic compositions.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: December 12, 2006
    Assignee: Repsol Quimica, S.A.
    Inventors: Antonio Muñoz-Escalona Lafuente, Pilar Lafuente Cañas, Jose Sancho Royo, Begoña Peña Garcia, Carlos Martin Marcos
  • Patent number: 7135427
    Abstract: A carboxy-modified aluminum-based catalyst composition is of the general formula P(O)(OAlR?R?)3 or RP(O)(OAlR?R?)2 wherein O represents oxygen, P represents pentavalent phosphorous, Al represents aluminum, R comprises hydrogen, an alkyl group, or an aryl group, and R? and R? independently comprise a halide, an alkyl group, a haloalkyl group, an alkoxy group, an aryl group, an aryloxy group, or a carboxy group, so long as at least one of R? and R? is a carboxy group. The carboxy-modified aluminum-based catalyst composition is, generally, the reaction product of phosphoric acid or a pentavalent phosphonic acid, a tri-substituted aluminum compound, and a carboxylic acid.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: November 14, 2006
    Assignee: BASF Corporation
    Inventor: Edward Michael Dexheimer
  • Patent number: 7135428
    Abstract: A catalyst solution for the anionic polymerization of lactones and/or lactams comprises a salt of at least one compound of the general formula I In this formula (I), R1 is H or an aliphatic, cycloaliphatic or aromatic radical with 1 to 12 C atoms which can also have heteroatoms or hetero groups, the radical R2, which is the same or different, is H, halogen, C1–C5-alkyl, ethoxy or wherein said solvation agent S comprises N-methylpyrrolidone, N-octylpyrrolidone, N-cyclohexylpyrrolidone, N-octylcaprolactam, tetrabutyl urea or mixtures thereof methoxy, and n=1, 2 or 3, and wherein the salt is dissolved in an aprotic solvation agent S.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: November 14, 2006
    Assignee: Ems-Chemie AG
    Inventors: Eduard Schmid, Heinz Hoff, Ornulf Rexin
  • Patent number: 7122499
    Abstract: A carrier for carrying an osmium oxide comprising an aromatic polyolefin polymer having a group shown by the general formula [1] as a substituent on the aromatic ring of said polyolefin polymer: —A?—O(—A—O)n—R[1] (wherein A is an alkylene group; A? is a direct link or an alkylene group; R is an aryl group; and n is an integer of 1 to 10), an osmium oxide carried by the carrier for carrying an osmium oxide and a method for producing the osmium oxide carried by said carrier are disclosed. Since the osmium oxide carried by the carrier of the present invention has a hydrophilic group, in an oxidation reaction and an asymmetric oxidation reaction, particularly in a heterogeneous solvent system, the osmium oxide carried by the carrier of the present invention enables to produce a diol compound easily and in a high optical yield.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: October 17, 2006
    Assignees: Wako Pure Chemical Industries, Ltd.
    Inventor: Shu Kobayashi
  • Patent number: 7109142
    Abstract: This invention concerns a solid catalyst component for olefin polymerization and the process for obtaining the catalyst component having titanium, halogen, magnesium, an organic acid ester and a relative surface area of 0.1–15 m2/g as measured according to a BET method and wherein the organic acid ester is contained in the solid catalyst component in an amount of 11% by weight or more.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: September 19, 2006
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shin-ichi Kumamoto, Makoto Satoh, Hideki Ohshima
  • Patent number: 7105672
    Abstract: A catalyst compound of formula I or II: (wherein R1–R11, M, E, T, X, Y, m and n are defined herein). The compound, when combined with a suitable activator, is active for the polymerization of olefins. In an embodiment of combinations of the R1–R7 and T groups, these catalysts can engage in weak attractive non-covalent interactions with the polymer chain. In another embodiment, the R1–R11 groups in formula II exhibit weak attractive non-covalent interactions with the polymer chain.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: September 12, 2006
    Assignee: The University of Hong Kong
    Inventors: Michael Chi-Wang Chan, Chi-Fai Kui
  • Patent number: 7094901
    Abstract: A cocatalyst or cocatalyst component, including a compound corresponding to the formula: (A*+a)b(Z*J*j)?cd, wherein: A* is a cation of from 1 to 80 atoms, not counting hydrogen atoms, Z* is an anion group of from 1 to 50 atoms, not counting hydrogen atoms, containing two or more Lewis base sites; J* is a Lewis acid of from 1 to 80, not counting hydrogen atoms, coordinated to at least one Lewis base site, and optionally two or more such J* groups may be joined together in a moiety having multiple Lewis acidic functionality, j is from 2 to 12 and a, b, c, and d are integers from 1 to 3, with the proviso that a×b is equal to c×d, and provided further that one or more of A*, Z* or J* comprises a hydroxyl group or a polar group containing quiescent reactive functionality.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: August 22, 2006
    Assignee: Dow Global Michigan Technologies Inc.
    Inventors: David A. Babb, David R. Neithamer, Richard E. Campbell, Jr., Grant B. Jacobsen, Edmund M. Carnahan
  • Patent number: 7087549
    Abstract: This invention reveals a catalyst system for use in isothermal polymerizations which consists essentially of (a) an organolithium compound, (b) a calcium alkoxide and (c) a lithium alkoxide. The subject invention further discloses a process for synthesizing a random styrene-butadiene rubber having a low vinyl content by a process which comprises copolymerizing styrene and 1,3-butadiene under isothermal conditions in an organic solvent in the presence of a catalyst system which consists essentially of (a) an organolithium compound, (b) a calcium alkoxide and (c) a lithium alkoxide. An amine can also be added to the catalyst system to increase the molecular weight (Mooney viscosity) of the rubber.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: August 8, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Adel Farhan Halasa, Wen-Liang Hsu, John Robert Zuppo, III
  • Patent number: 7081428
    Abstract: Supported photooxidation catalysts containing a metal oxide or metal ion as catalyst which is fixed to the support by means of carboxylate moieties are an alternative to existing such catalysts, particularly if low cost supports such as organic polymers, particularly polyethylene, are used. The supported photocatalysts can be used in mineralisation of organic pollutants in both liquids and gases and show reduced leaching of the catalyst and good resistance towards reactive oxygen species generated during the degradation process.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: July 25, 2006
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventor: Ravindranathan Thampi
  • Patent number: 7049262
    Abstract: The present invention provides a method of preparing a supported catalyst from a liquid catalyst system dispersed on a solid carrier. The method of this embodiment comprises freezing the liquid catalyst system in a non-reactive liquid to form a frozen catalyst system dispersed within the non-reactive liquid. The frozen catalyst system is then contacted with a solid carrier. Finally, the non-reactive liquid is removed to yield the supported catalyst. In another embodiment, a supported catalyst made by the methods of the present invention is provided.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: May 23, 2006
    Assignee: Equistar Chemicals, LP
    Inventors: Sandor Nagy, Kenneth W. Johnson
  • Patent number: 7049266
    Abstract: Processes for the preparation of nanopalladium (0) catalysts are disclosed. In some embodiments, the nanopalladium (0) catalysts may be reusable. In some embodiments, the nanopalladium (0) catalysts may be heterogeneous. Nanopalladium (0) catalysts may be employed for preparing coupling products by C—C bond formation through reaction of haloarenes in the presence of base. Haloarenes used in the coupling reaction may include chloroarenes that are typically unreactive. The use of heterogeneous nanopalladium catalyst may preclude the presence of trace amounts of palladium in the final coupling product.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 23, 2006
    Assignee: Indian Institute of Chemical Technology
    Inventors: Boyapati Manoranjan Choudary, Madhi Sateesh, Naidu Sreenivasa Chowdari, Mannepalli Lakshmi Kantam, Bojja Sreedhar