Patents Examined by J. Pasterczyk
  • Patent number: 6894179
    Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: May 17, 2005
    Assignee: Exxon Mobil Chemical Patents Inc.
    Inventors: Matthew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr., Terry J. Burkhardt
  • Patent number: 6894180
    Abstract: A catalyst system having the following formula is described herein. wherein M is a metal; each X is an atom or group banded to M and may be the same or different; R1 and R2 may be the same or each may be different and are substituted or unsubstituted cyclopentadienyl or aromatic groups; RB is a structural bridge between R1 and R2 imparting stereorigidity thereto and including at least one heteroatom bonded to M, with each of R1 and R2 bonded to the same or different heteroatom of RB which heteroatom is also bonded to M; Z is the coordination number of M and is greater than or equal to 4 and m is the number of bonds between M and heteroatoms of RB.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: May 17, 2005
    Assignee: Fina Technology, Inc.
    Inventors: Abbas Razavi, Margarito Lopez, Didier Baekelmans, Vladimir Marin
  • Patent number: 6893996
    Abstract: A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with a molar excess of nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel. Preferably, the nickel chloride is dried before use.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: May 17, 2005
    Assignee: Invista North America S.A.R.L.
    Inventors: Luis A. Chu, Lucy M. Clarkson, Norman Herron, Ronald J. McKinney, Kenneth G. Moloy, Zeru Tekie
  • Patent number: 6893995
    Abstract: Disclosed are methods of producing a supported organic catalyst system comprising the steps of: (a) providing an organic catalyst solution comprising an organic catalyst dissolved in a supercritical-like solvent; (b) contacting a support material with the organic catalyst solution; and (c) removing substantially all of the supercritical-like solvent from the organic catalyst and the support material.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: May 17, 2005
    Assignee: Honeywell International Inc.
    Inventors: Raymond Hilton Percival Thomas, Roy Phillip Robinson, David Nalewajek, Kane David Cook
  • Patent number: 6894128
    Abstract: Catalyst compositions and methods useful in polymerization processes utilizing at least two metal compounds are disclosed. At least one of the metal compounds is a Group 15 containing metal compound and the other metal compound is preferably a bulky ligand metallocene-type catalyst. The invention also discloses a new polyolefin, generally polyethylene, particularly a multimodal polymer and more specifically, a bimodal polymer, and its use in various end-use applications such as film, molding and pipe. The Group 15 containing metal compound is represented in one embodiment by the formulae: wherein M is a Group 4, 5, or 6 metal; each X is independently a leaving group; y is 0 or 1; n is the oxidation state of M; m is the formal change of the ligand comprising the YZL or YZL? groups; L is a Group 15 or 16 element; L? is a Group 15 or 16 element or Group 14 containing group; Y is a Group 15 element; Z is a Group 15 element; and the other groups are as defined herein.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: May 17, 2005
    Assignee: Univation Technologies, LLC
    Inventors: Donald R. Loveday, David H. McConville, John F. Szul, Kersten Anne Erickson, Simon Mawson, Tae Hoon Kwack, Frederick J. Karol, David James Schreck
  • Patent number: 6888017
    Abstract: This invention relates to bridged indenyl metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization. The bridge may be represented by the formula: wherein: R17 to R24 are identical or different, and are one of a hydrogen atom, a C1-C10 alkyl group, a C1-C10 alkoxy group, a C6-C10 aryl group, a C6-C10 aryloxy group, a C2-C10 alkenyl group, a C7-C40 arylalkyl group, a C7-C40 alkylaryl group, a C8-C40 arylalkenyl group, or a halogen atom, or together are a conjugated diene which is optionally substituted with one or more hydrocarbyl, tri(hydrocarbyl)silyl groups or hydrocarbyl, tri(hydrocarbyl)silylhydrocarbyl groups, said diene having up to 30 atoms not counting hydrogen; or two or more adjacent radicals R17 to R24, including R20 and R21, together with the atoms connecting them form one or more rings; and M2 is carbon, silicon, germanium or tin.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: May 3, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew C. Kuchta, Udo M. Stehling, Robert T. Li, William T. Haygood, Jr., Terry J. Burkhardt
  • Patent number: 6884751
    Abstract: Hydrocyanation catalysts comprising aqueous solutions of at least one water-soluble phosphine and nickel values, well suited for the hydrocyanation of ethylenically unsaturated organic compounds such as diolefins, olefinic nitrites and monolefins, are produced by (a) admixing an aqueous solution of such at least one water-soluble phosphine with a nickel hydroxide, (b) adding hydrogen cyanide or a compound which generates hydrogen cyanide to the mixture thus formed, (c) stirring the resulting mixture until the nickel values have at least partially dissolved, and (d) reducing at least a portion of said nickel values having an oxidation state of greater than zero to the zero oxidation state.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: April 26, 2005
    Assignee: Rhodia Feber & Resin Intermedaites
    Inventors: Paolo Burattin, Pierre Coqueret, Marc Huser
  • Patent number: 6881696
    Abstract: A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with an ester compound having at least one hydroxyl group and a boron compound having at least one alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst through recrystallization by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: April 19, 2005
    Assignee: Samsung General Chemicals Co., Ltd.
    Inventors: Chun-Byung Yang, Ji-Yong Park, Yong-Bok Lee, Weon Lee
  • Patent number: 6881698
    Abstract: The ionic liquids according to the invention result from the reaction of a halogenated or oxyhalogenated Lewis acid based on titanium, niobium, tantalum, tin or antimony with an organic salt of formula X+A? in which A? is a halide anion and X+ a quaternary ammonium, quaternary phosphonium or ternary sulphonium cation. These liquids can be used in particular in the liquid-phase fluorination using HF of saturated or unsaturated compounds having C—Cl groups.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: April 19, 2005
    Assignee: Atofina
    Inventors: Phillippe Bonnet, Eric Lacroix, Jean-Pierre Schirmann
  • Patent number: 6875718
    Abstract: The invention provides olefin polymerization catalysts exhibiting excellent polymerization activities, a process for olefin polymerization using the catalysts, a novel transition metal compound useful for the catalysts, and ?-olefin/conjugated diene copolymers having specific properties. The olefin polymerization catalysts of the invention contain (A) a transition metal compound of formula (I), and (B) an organometallic compound, an organoaluminum oxy-compound or an ionizing ionic compound. The novel transition metal compounds of the invention are compounds of formula (I) wherein M is a transition metal atom of Group 3 or 4 of the periodic table; R1 is a hydrocarbon group, etc.; R2 to R5 are each H, a halogen, a hydrocarbon group, etc.; R6 is a halogen, a hydrocarbon group, etc.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: April 5, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Terunori Fujita, Yasushi Tohi, Makoto Mitani, Shigekazu Matsui, Junji Saito, Masatoshi Nitabaru, Kiyoaki Sugi, Haruyuki Makio, Toshiyuki Tsutsui
  • Patent number: 6875719
    Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon) in a ring structure and the bridge X forms a three-, four-, or five-member ring structure. The bite angle ? formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions. The metallocene compound is represented by formula (I) below.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: April 5, 2005
    Assignee: Industrial Technology Research Institute
    Inventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei, Chao-Ying Yu
  • Patent number: 6864209
    Abstract: A catalytic composition for oligomerizing olefins, in particular ethylene, comprises mixing at least one nickel complex, prepared by reacting a nickel salt with a phosphonite ligapd, with at least one hydrocarbylaluminum compound in a molar proportion with respect to the nickel of not more than 8? and selected from the group formed by tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds and aluminoxanes.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: March 8, 2005
    Assignee: Institut Francais du Petrole
    Inventors: Fredy Speiser, Pierre Braunstein, Lucien Saussine
  • Patent number: 6864208
    Abstract: A catalyst solid for olefin polymerization comprising A) at least one magnesium halide, B) at least one metallocene complex and C) at least one compound capable of forming metallocenium ions, is prepared by i) firstly preparing finely divided support particles consisting of the magnesium halide A) and an C1-C8-alcohol having a mean particle diameter of from 1 to 200 ?m from an adduct of the magnesium halide A) and a C1-C8-alcohol, where the adduct contains from 1.5 to 5 mol of the C1-C8-alcohol per mole of magnesium halide, ii) then depositing the compound C) capable of forming metallocenium ions on the finely divided support particles and iii) subsequently bringing the reaction product hereby obtained into contact with the metallocene complex B). This catalyst solid can be used for the polymerization or copolymerization of olefins.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: March 8, 2005
    Assignee: Basell Polyolefine GmbH
    Inventors: Carsten Süling, Wolf Spaether, Nicola Paczkowski, Joachim Rösch, Joachim Wulff-Döring, Wolfgang Bidell
  • Patent number: 6864334
    Abstract: The instant invention provides a late transition metal complex which can be used with an activating cocatalyst to produce polymers and copolymers. The invention also provides methods for polymerizing olefins, as well as copolymers having polar monomers incorporated therein.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: March 8, 2005
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Lisa Saunders Baugh, Abhimanyu Onkar Patil, Donald Norman Schulz, Robert Timothy Stibrany, Joseph Anthony Sissano, Stephen Zushma
  • Patent number: 6864207
    Abstract: A process for making a polyolefin catalyst component, catalyst and polymer resin is disclosed. Controlling the viscosity of a catalyst synthesis solution with the addition of aluminum alkyl alters the precipitation of the catalyst component from a catalyst synthesis solution. The average particle size of the catalyst component increases with an increased concentration of aluminum alkyl in the synthesis solution. The catalyst component can be produced by a process comprising contacting a magnesium alkyl compound with an alcohol and an aluminum alkyl to form a magnesium dialkoxide. Catalyst components, catalysts, catalyst systems, polyolefin, products made therewith, and methods of forming each are disclosed. The reaction products can be washed with a hydrocarbon solvent to reduce titanium species [Ti] content to less than about 100 mmol/L.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: March 8, 2005
    Assignee: Fina Technology, Inc.
    Inventors: David W. Knoeppel, Tim J. Coffy, Henry Enriquez, Steven D. Gray
  • Patent number: 6861386
    Abstract: A polymerizable composition including a resin system comprising oligomers or polymers functionalized with groups curable by ring opening metathesis polymerization, a metathesis catalyst, and a catalyst accelerator. In examples of the present invention, the composition includes a ruthenium carbene complex catalyst capable of initiating ring-opening metathesis polymerization of the composition and a silicone-based sulfosuccinate salt capable of accelerating the polymerization initiated by the catalyst. In another example, the invention includes a paste/paste system in which a base paste includes the polymerizable oligomer or polymer and the catalyst accelerator and in which a catalyst paste includes the catalyst dissolved in an inert solvent.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: March 1, 2005
    Assignee: Kerr Corporation
    Inventors: Christos Angeletakis, Mingfei Chen
  • Patent number: 6858559
    Abstract: Disclosed is an asymmetric copper catalyst composition comprising, as components, (a) an optically active bisoxazoline compound of formula (1): wherein R1 and R2 are different and each represents a hydrogen atom, an alkyl group, a cycloalkyl group, or a phenyl or aralkyl group which may be substituted, R3 and R4 each represents a hydrogen atom, an alkyl group, a cycloalkyl group, or a phenyl or aralkyl group which may be substituted, or R3 and R4 may be bonded to each other to form a C3-5 cyclic alkylene group, R5 represents a hydrogen atom or a C1-6 alkyl group, or the two R5 groups may be bonded to each other to represent a C3-5 cyclic alkylene group, (b) a monovalent or divalent copper compound, and (c) a strong acid or a Lewis acid or a mixture thereof, and a process for producing an optically active cyclopropanecarboxylate using the same.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: February 22, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Michio Yamamoto, Gohfu Suzukamo, Makoto Itagaki
  • Patent number: 6852661
    Abstract: A catalyst comprising at least one complex of a metal of transition group VIII comprising at least one monodentate, bidentate or multidentate phosphinamidite ligand in which the phosphorus atom and the oxygen atom of the phosphinamidite group form part of a 5- to 8-membered heterocycle can be used for the hydroformylation and hydrocyanation of compounds containing at least one ethylenically unsaturated double bond. The phosphinamidite ligand is, for example, represented by the following formulae wherein represents an optionally substituted 5- to 8-membered heterocycle wherein A represents carbon ring members; represents an optionally substituted N-bonded heterocycle wherein (Het) indicates optional ring heteroatoms in addition to the N; and B is a carbon-carbon single bond or a divalent bridging group.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: February 8, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Ahlers, Heiko Maas, Michael Röper
  • Patent number: 6844446
    Abstract: Catalyst compositions useful for the polymerization of olefins are disclosed. These compositions comprise a Group 8-10 metal complex comprising a bidentate or variable denticity ligand comprising one or two nitrogen donor atom or atoms independently substituted by an aromatic or heteroaromatic ring(s), wherein the ortho positions of said ring(s) are substituted by aryl or heteroaryl groups. Also disclosed are processes for the polymerization of olefins using the catalyst compositions.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: January 18, 2005
    Assignee: Eastman Chemical Company
    Inventors: Leslie Shane Moody, Peter Borden Mackenzie, Christopher Moore Killian, Gino Georges Lavoie, James Allen Ponasik, Jr., Thomas William Smith, Jason Clay Pearson, Anthony Gerard Martin Barrett
  • Patent number: 6844289
    Abstract: Process for preparing a nickel/ligand catalyst in which a crude ligand mixture is contacted with at least one member selected from the group consisting of (i) a weakly acidic organic resin, (ii) a weakly basic organic resin, (iii) a high-surface-area organic resin, (iv) activated carbon, (v) aluminosilicate zeolite, (vi) a two phase solvent system for liquid-liquid extraction and (vii) a Lewis acid; recovering a solution containing a ligand of the formula (R1O)2POZOP(OR1)2; and contacting the solution with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel to produce the nickel/ligand catalyst.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: January 18, 2005
    Assignee: Invista North America S.A.R.L.
    Inventors: Scott Christopher Jackson, Ronald J. McKinney