Patents Examined by J. Pasterczyk
  • Patent number: 7041618
    Abstract: The present invention relates to a metallocene compound having a functional group that facilitates the preparation of the supported metallocene catalyst for olefin polymerization and the olefin polymerization process using the same. The metallocene compounds in this invention are strongly supported on the inorganic support due to the strong chemical bond of the ligand of the metallocene compound with the silica surface, which leads to minimize leaching of the catalyst during the activation process. Therefore, the supported catalyst of this invention allows the olefin polymerization process to proceed without any fouling in the reactor with a slurry or a gas phase process, and the morphology and bulk density of the polymer produced are much better defined than those produced by conventional methods.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: May 9, 2006
    Assignee: LG Chemical Ltd.
    Inventors: Bun-Yeoul Lee, Jae-Seung Oh, Joo-Eun Lee, Do-Hoon Lee
  • Patent number: 7034157
    Abstract: Olefin polymerization catalyst precursors are described herein. The precursors are generally characterized by the formula: wherein M is a transition metal selected from groups 8 to 10 of the Periodic Table; n is an integer of from 1 to 3; Q is a halogen or a C1 to C2 alkyl group; PY is a pyridinyl group, which is coordinated with M through the nitrogen atom of said pyridinyl group; R? is a C1 to C20 hydrocarbyl group; R? is a C1 to C20 hydrocarbyl group; A1 is a monoaromatic group, which is substituted or unsubstituted; and A2 includes multiple aromatic groups, which are substituted or unsubstituted.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: April 25, 2006
    Assignee: Fina Technology, Inc.
    Inventors: Abbas Razavi, Vladimir Marin, Margarito Lopez
  • Patent number: 7026265
    Abstract: Process for the preparation of a particular olefin polymerisation catalyst component including magnesium dihalide, titanium tetrahalide and a carboxylic acid ester, in which the precursors of its constituents are reacted in solution from which the component is precipitated, this precipitation being accompanied by co-precipitation of one or more oligoesters of the carboxylic acid formed in a controlled manner.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: April 11, 2006
    Assignee: Borealis Technology Oy
    Inventors: Timo Leinonen, Peter Denifl
  • Patent number: 7026266
    Abstract: A hetergeneous catalyst includes a solid support having deposited thereon a catalyticaly active material, which is substantially insoluble in organic and aqueous liquid media. The insoluble material is constructed from secondary building blocks derived from suitable organometallic active components, and the organometallic active component may be molecularly modified so as to introduce two or more anionic functional groups. These molecularly modified organometallic components, upon interaction with salts of Ca2+, Sr2+ and Ba2+, provde the practically insoluble solid material. Methods of formuatling the organometallic active materials on a solid support as a solid catalyst are also provided. The catalysts are capable of catalyzing diverse reactions in polar and nonpolar reaction media, and the overall integrity of the formulation as a solid material in a liquid phase provides easy catalyst and product separation.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: April 11, 2006
    Assignee: Council of Scientific & Industrial Research
    Inventors: Raghunath Vitthal Chaudhari, Avinash Narendra Mahajan
  • Patent number: 7012121
    Abstract: Supported catalyst compositions use for use in the gas-phase polymerization of one or more ?-olefins and methods for making and using the same, the catalyst composition including A) an inert support; B) a Group 4–10 metal complex corresponding to the formula: where M is a metal from one of Groups 4 to 10 of the Periodic Table of the Elements in the +2 or +4 formal oxidation state, Cp is a ?-bonded anionic ligand group, Z is divalent moiety bound to Cp and bound to M by either covalent or coordinate/covalent bonds and contains boron or a member of Group 14 of the Periodic Table of the Elements, and also nitrogen, phosphorus, sulfur or oxygen, and X is a neutral conjugated diene ligand group having up to 60 atoms, or a dianionic derivative thereof; and C) an ionic cocatalyst capable of converting the metal complex into an active polymerization catalyst represented by the formula: [L*-H]+[(C6F5)3BC6H4—O—MORCx-1Xay]?, wherein L* is a neutral Lewis base, Mo is a metal or metalloid selected from Groups 1–14 o
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: March 14, 2006
    Assignee: BP Chemicals Limited
    Inventors: Edmund M Carnahan, David R Neithamer, Ravi B Shankar
  • Patent number: 7008898
    Abstract: The invention relates to a method for producing a poly-1-olefin by polymerisation of a 1-olefin of the formula R4CH?CH2, in which R4 is hydrogen or an alkyl radical having from 1 to 10 carbon atoms, in suspension, in solution or in the gas phase, at a temperature of from 20 to 200° C. and a pressure of from 0.5 to 50 bar, in the presence of a catalyst which consists of the product of the reaction of a magnesium alkoxide with a transition-metal compound (component a) and an organometallic compound (component b), whose component a has been produced by reacting a transition-metal compound of titanium, zirconium, vanadium or chromium with a gelatinous dispersion of the magnesium alkoxide in an inert hydrocarbon.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: March 7, 2006
    Assignee: Basell Polyolefine GmbH
    Inventors: Frank Alt, Paul Schöneborn, Ludwig Böhm
  • Patent number: 7005400
    Abstract: A component of a catalyst for polymerizing an olefin, comprises: a carrier containing an inorganic oxide selected from silica, alumina, zirconia and titania and having a crushing strength of 0.5 to 25 MPa; and at least one member selected from oxides or hydroxides of metals of the groups 2, 3, 4, 13 and 14 in the periodic table, the metals being different from the metal constituting the inorganic oxide in the carrier, wherein the at least one member is supported on the surface of the carrier, so as to provide a novel catalyst component suitable for particle polymerization of an olefin and enabling to easily change molecular weight distribution of the resultant polymer.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: February 28, 2006
    Assignee: Japan Polychem Corporation
    Inventor: Tadashi Takahashi
  • Patent number: 7005399
    Abstract: An olefin polymerization catalyst comprising: (A) a solid catalyst component prepared by contacting (a) a dialkoxyl magnesium, (b) a tetra-valent titanium halide, and (c) a phthalic acid diester in (d) an aromatic hydrocarbon having a boiling point in the range of 50 to 150° C., (B) an organoaluminum compound of the formula R1pAlQ3?p, one or more compounds selected from the group consisting of (C) one or more halogen-containing organosilicon compounds selected from (C1) a halogen-containing organosilicon compound of the formula R21Si(OR3)4?l?mXm and (C2) a halogen-containing organosilicon compound of the formula R4qSi(OR5)4?q, and (D) an organosilicon compound of the formula R6sSi(OR7)4?s. The catalyst exhibits excellent activity to hydrogen and the same catalytic activity and yield performance as conventional catalysts, and possesses the capability of producing polymers with stereoregularity equivalent to conventional catalysts.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: February 28, 2006
    Assignee: Toho Titanium Co., Ltd.
    Inventor: Motoki Hosaka
  • Patent number: 7001961
    Abstract: The present invention relates to a catalyst composition and a method for making the catalyst composition which comprises a polymerization catalyst and at least one gelling agent. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(s). In particular, the polymerization catalyst system is supported on a carrier.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: February 21, 2006
    Assignee: Univation Technologies, LLC
    Inventors: Agapios Kyriacos Agapiou, Chi-I Kuo, David M. Glowczwski, Steven K. Ackerman
  • Patent number: 6998363
    Abstract: An olefin polymerization catalyst system is prepared from a catalyst of formula I or II: R1–R7 and R1–R12 in formulae I and II, respectively, are each independently —H, -halo, —NO2, —CN, —(C1–C30)hydrocarbyl, —O(C1–C30)hydrocarbyl, —N((C1–C30)hydrocarbyl)2, —Si((C1–C30)hydrocarbyl)3, —(C1–C30)heterohydrocarbyl, -aryl, or -heteroaryl, each being unsubstituted or substituted with one or more —R8 and —R12 groups, respectively. Two R1–R7 can be joined to form a cyclic group. R8 in formula I is -halo, —(C1–C30)hydrocarbyl, —O(C1–C30)hydrocarbyl, —NO2, —CN, —Si((C1–C30)hydrocarbyl)3, —N((C1–C30)hydrocarbyl)2, —(C1–C30)heterohydrocarbyl, -aryl, or -heteroaryl. T in formula I is —CR9R10— wherein R9 and R10 are defined as for R1 above. R12 is independently -halo, —NO2, —CN, —(C1–C30)hydrocarbyl, —O(C1–C30)hydrocarbyl, —N((C1–C30)hydrocarbyl)2, —Si((C1–C30)hydrocarbyl)3, —(C1–C30)heterohydrocarbyl, -aryl, or -heteroaryl. E, M, m, X, Y, and n in formulae I and II are defined herein.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: February 14, 2006
    Assignee: The University of Hong Kong
    Inventors: Michael Chi-Wang Chan, Chi-Fai Kui
  • Patent number: 6998365
    Abstract: Catalysts useful for low-cure powder coating compositions are disclosed, having the structure (I): wherein R1 is an organic radical having 6 to 25 carbon atoms; each R2 is independently a multivalent hydrocarbon group having 1 to 20 carbon atoms; Y is each R3 and R4 are independently alkyl or aryl groups having 1 to 12 carbon atoms; each Z is independently oxygen or nitrogen; R5 is absent when Z is oxygen and R5 is hydrogen, an alkyl or aryl group having 1 to 20 carbon atoms, or (Y)a —R2— when Z is nitrogen; a, b, and c are integers; each X is independently S, O, or N(R6); each R6 is independently hydrogen or an alkyl or aryl group having 1 to 12 carbon atoms; and P is a polymeric material.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: February 14, 2006
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Ronald R. Ambrose, Shengkui Hu, Shawn P. Duffy, Anthony M. Chasser
  • Patent number: 6989341
    Abstract: A catalyst system is provided. In one aspect, the catalyst system includes one or more polymerization catalysts and at least one activator. The activator comprises one or more heterocyclic nitrogen-containing ligands coordinated to a Group 13 atom, wherein the activator is a reaction product of one or more alkyl substituted Group 13 atom-containing compounds and one or more heterocyclic nitrogen-containing compounds, the one or more heterocyclic nitrogen-containing ligands represented by: wherein each substituent X2, X3, X4, X5, X6, and X7 is independently selected from the group consisting of hydrogen, chlorine, fluorine, iodine, and bromine. The catalyst system may be supported or non-supported.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: January 24, 2006
    Assignee: Univation Technologies, LLC
    Inventors: Matthew W. Holtcamp, David A. Cano
  • Patent number: 6989342
    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 a phosphorus compound and a silicon 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. The solid titanium complex catalyst for polymerization and copolymerization of ethylene according to present invention exhibits high polymerization activity, and may be advantageously used in the polymerization and copolymerization of ethylene to produce polymers of high bulk density and narrow molecular weight distribution.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: January 24, 2006
    Assignee: Samsung General Chemicals, Co., Ltd.
    Inventors: Chung-Byung Yang, Won-Young Kim, Ji-Yong Park, Weon Lee
  • Patent number: 6984605
    Abstract: A method for manufacturing ionic liquid compositions by use of a two-step process which includes the contacting, under first reaction conditions, an amine compound with a hydrogen halide that is preferably in the gaseous form to provide a first reaction mixture. The first reaction mixture is then contacted, under second reaction conditions, with a metal halide compound to form the ionic liquid end-product.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: January 10, 2006
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Kenneth D. Hope, Donald A. Stern, Donald W. Twomey
  • Patent number: 6984599
    Abstract: A catalyst system useful for polymerizing olefins is disclosed. The catalyst system includes an organometallic complex that incorporates a Group 3 to 10 transition metal and a hydroxyl-depleted calixarene ligand that is chelated to the metal. Molecular modeling studies reveal that organometallic complexes incorporating such calixarene ligands, when combined with an activator such as MAO, should actively polymerize olefins.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: January 10, 2006
    Assignee: Equistar Chemicals, LP
    Inventor: Sandor Nagy
  • Patent number: 6982238
    Abstract: The invention provides a supported chromium catalyst system comprising a chromium catalyst precursor bound via at least one heteroatom to a functionalised support, said heteroatom being connected to said support via an organic group.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: January 3, 2006
    Assignee: Borealis Technology Oy
    Inventors: Klaus Joachim Jens, Arild Follestad, Siw Bodil Fredriksen, Richard Blom, Ivar Martin Dahl
  • Patent number: 6982237
    Abstract: A spray-dried catalyst precursor composition and method of making a spray-dried catalyst precursor composition with an inert filler, magnesium, a transition metal, solvent, and one electron donor compound. The catalyst precursor composition is substantially free of other electron donor compounds, the molar ratio of the electron donor compound to magnesium is less than or equal to 1.9, and comprises spherical or substantially spherical particles having a particle size of from about 10 to about 200 ?m. Catalysts made from the spray-dried catalyst precursors and polymerization methods using such catalysts are disclosed.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: January 3, 2006
    Assignee: Univation Technologies, LLC
    Inventors: Burkhard Eric Wagner, Robert James Jorgensen
  • Patent number: 6972271
    Abstract: Disclosed are methods of producing supported organic catalyst systems which find particular use in polymerization reactions. The methods comprise generally, the steps of (a) providing an organic catalyst solution comprising an organic catalyst dissolved in a solvent; (b) contacting the organic catalyst solution with a solid support material; and (c) removing the solvent from the support material by using one or more supercritical-like solvents.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: December 6, 2005
    Assignee: Honeywell International Inc.
    Inventors: Raymond H. P. Thomas, Roy Robinson, David Nalewajek, Kane D. Cook
  • Patent number: 6972270
    Abstract: The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: December 6, 2005
    Assignee: Univation Technologies, LLC
    Inventors: Timothy T. Wenzel, Dick A. Nagaki, Simon Mawson, David James Schreck, Thomas H. Peterson
  • Patent number: 6969693
    Abstract: Ionic liquids are immobilized on a functionalized support which carries or contains one component of the ionic liquid, or a precursor to such a component. The ionic liquid may be immobilized via the anion by treating a support with an anion source, e.g., an inorganic halide, before the ionic liquid is applied or formed. Alternatively, the ionic liquid may be immobilized by having the cation covalently bound to the support, e.g., through silyl groups, or incorporated in the support by synthesizing the support in the presence of a suitable base. The immobilized ionic liquids are of use as catalysts, for example, for the Friedel-Crafts reaction, such as alkylation reaction.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: November 29, 2005
    Assignee: Johnson Matthey PLC
    Inventors: Emmanuelle Sauvage, Michael H Valkenberg, Christovao P De Castro-Moreira, Wolfgang F Hoelderich