Patents Examined by Jennine M Brown
  • Patent number: 6897175
    Abstract: A metal oxide catalyst precursor composition comprises a pore former and a catalyst reagent.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: May 24, 2005
    Assignee: General Electric
    Inventors: David Parrillo, Pramod Kumbhar, Ashok Menon, Mukund Parthasarathy, Geuch Zijlma, Sunil Ashtekar
  • Patent number: 6884746
    Abstract: Described herein is a prepolymerized catalyst encapsulated with macromolecular monomers which is prepared by adding olefin mononers and diene compounds to a solid complex titanium catalyst for olefin polymerization and then polymerizing, and also relates to a method for polymerization or copolymerization capable of preparing polyolefins with high melt strength by polymerizing the olefin by using said catalyst.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: April 26, 2005
    Assignee: Samsung General Chemicals, Co., Ltd.
    Inventors: Young-Soo Ko, Ki-Su Ro, Young-Jun Lee, Yong Chun
  • Patent number: 6884748
    Abstract: The present invention relates to a process of producing a fluorided catalyst compound, catalyst compositions, and polymerization methods including such. At least one specific embodiment of the invention includes contacting a chlorinated metallocene catalyst component with a fluorinated inorganic salt, for a time sufficient to form a fluorinated metallocene catalyst component such as described in the following example: wherein R are substituent groups selected from the group consisting of C1 to C10 alkyls in a particular embodiment, and p is 0 or an integer from 1 to 5. The fluorinated inorganic salt is characterized in a particular embodiment as a compound that provides at least one fluoride ion when contacted with a diluent comprising at least 50 wt % water.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: April 26, 2005
    Assignee: Univation Technologies, LLC
    Inventor: Laughlin G. McCullough
  • Patent number: 6878659
    Abstract: A solid catalyst component for olefin polymerization characterized by being formed from (a) a magnesium compound, (b) titanium tetrachloride, (c) a phthalic diester and a derivative thereof, and either (d1) a hydroxylated hydrocarbon compound (phenol, etc.) represented by a specific formula or (d2) a mercapto-containing hydrocarbon compound (thiophenol, etc.) represented by a specific formula. With a catalyst obtained from this solid catalyst component, an olefin polymer can be obtained in extremely high yield. In particular, a propylene polymer which retains high stereoregularity can be obtained in extremely high yield.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: April 12, 2005
    Assignee: Toho Titanium Co., Ltd.
    Inventors: Kunihiko Tashino, Isa Nishiyama, Takuma Yoshida, Yukihiro Suzuki, Hayashi Ogawa, Maki Sato
  • Patent number: 6878658
    Abstract: The present invention provides a Ziegler-Natta catalyst useful in solution processes for the polymerization of olefins having a low amount of aluminum and magnesium. The catalysts of the present invention contain an alkyl silanol and have a molar ratio of Si:Ti from 0.25:1 to 4:1. The catalysts are effective for the solution polymerization of olefins at high temperatures.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: April 12, 2005
    Assignee: Nova Chemicals (International) S.A.
    Inventor: Isam Jaber
  • Patent number: 6878660
    Abstract: The present invention relates to a novel, heterogeneous catalyst which is suitable, in particular, for olefin metathesis. This catalyst is immobilized on an inorganic support and contains at least one active rhenium compound containing at least one carbene group and, if desired, further functional groups. The rhenium compound is bonded to the material used as support by a chemical bond.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: April 12, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Jean-Marie Basset, Mathieu Chabanas, Christophe Coperet
  • Patent number: 6875720
    Abstract: A method of treating an untreated catalyst support includes contacting an untreated catalyst support which is partially soluble in an aqueous acid and/or a neutral aqueous solution with a modifying component precursor of the formula Me(OR)x where Me is a modifying component selected from Si, Zr, Ti, Cu, Zn, Mn, Ba, Co, Ni, Na, K, Ca, Sn, Cr, Fe, Li, TI, Mg, Sr, Ga, Sb, V, Hf, Th, Ce, Ge, U, Nb, Ta, and W, R is an alkyl or acyl group, and x is an integer having a value of from 1 to 5. The modifying component is thereby introduced onto and/or into the catalyst support to form a protected modified catalyst support which is less soluble in the aqueous acid and/or the neutral aqueous solution. No calcination of the protected modified catalyst support is effected.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: April 5, 2005
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Peter Jacobus Van Berge, Jan Van De Loosdrecht, Sean Barradas
  • Patent number: 6864210
    Abstract: A catalyst system useful for polymerizing olefins is disclosed. The catalyst system comprises an activator and a bimetallic complex that incorporates two Group 3 to 10 transition metal atoms, which may be the same or different, and a neutral or anionic indigoid ligand. By proper selection of the indigoid skeleton and by modifying its substituents and transition metal centers, polyolefin makers can fine-tune the bimetallic complexes to control activity, enhance comonomer incorporation, and optimize polymer properties.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: March 8, 2005
    Assignee: Equistar Chemicals, LP
    Inventors: Gregory G. Hlatky, Jonathan L. Schuchardt
  • Patent number: 6855662
    Abstract: A catalyst for preparing a fluorine-containing alcohol compounds, the catalyst is obtained by supporting an ammine complex containing at least one component selected from the group consisting of the elements in Group 1B, Group 2B, Group 6A, Group 7A and Group 8 of the periodic table on at least one complex oxide selected from the group consisting of Si—Al complex oxide, Al—P complex oxides and Si—Al—P complex oxides.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: February 15, 2005
    Assignee: Daikin Industries, Ltd.
    Inventors: Toshiyuki Katsube, Yuuki Matsuda, Jun Miki
  • Patent number: 6855655
    Abstract: A supported catalyst composition comprising the reaction product of i) a magnesium halide, ii) a solvent, iii) an electron donor compound, iv) and a transition metal compound; an inert support; and a cocatalyst composition wherein the supported catalyst is substantially free of other alcohols and wherein the molar ratio of the first alcohol to magnesium is less than or equal to 1.9. Methods of making supported catalyst compositions and methods of making polymers with supported catalysts.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: February 15, 2005
    Assignee: Univation Technologies, LLC
    Inventors: Burkhard Eric Wagner, Michael D. Awe
  • Patent number: 6844287
    Abstract: The present invention provides a process for preparing supported zinc dicarboxylate catalysts with high activity for the copolymerization of carbon dioxide and epoxides by supporting zinc dicarboxylate on silica support. The zinc dicarboxylate may be synthesized from zinc oxide and dicarboxylic acid such as succinic acid, glutaric acid, adipic acid, pimelic acid and suberic acid. The silica support can be selected from the group consisting of aerosil, silica gel for chromatography or reagent grade silicon dioxide. The supporting process is performed in a planetary ball grinder under vacuum.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: January 18, 2005
    Assignee: Guangzhou Institute of Chemistry, Chinese Academy of Sciences
    Inventors: Yuezhong Meng, Quan Zhu, Shizhen Zhang, Xiuhua Li, Longchao Du
  • Patent number: 6841504
    Abstract: Disclosed are polymerization catalyst activator compounds which include a Group 13 atom, preferably boron or aluminum, bonded to at least one heterocyclic groups. The heterocyclic group preferably contains one or more heteroatoms selected from Group 15 and/or 16, and may be unsubstituted or substituted. Preferably, the heterocyclic ligand is substituted with a halogen atom or a halogen containing group, where the halogen is preferably fluorine. Also disclosed are olefin(s) polymerization processes utilizing the invention.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: January 11, 2005
    Assignee: Univation Technologies, LLC
    Inventor: Matthew W. Holtcamp
  • Patent number: 6841498
    Abstract: Disclosed is a new titanium based catalyst system for (co)-polymerizing ethylene or ethylene with alpha-olefin having 3 to 10 carbons. The catalyst is obtained by contacting a magnesium halide support with an aluminum compound and with a titanium halide compound and then treating the resulting solid with a magnesium-amide complex. The catalyst system is suitable for producing ethylene polymer and co-polymer with narrow molecular weight distribution as well as improved branching compositional distribution.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: January 11, 2005
    Assignee: Formosa Plastic Corporation, U.S.A.
    Inventors: Gapgoung Kong, Zhongyang Liu, Honglan Lu
  • Patent number: 6841500
    Abstract: Catalyst systems useful for olefin polymerization are disclosed. The catalysts include a bimetallic complex that incorporates two linked indenoindolyl groups, each of which is pi-bonded through its cyclopentadienyl ring to one of the metals. Compared with conventional indenoindolyl complexes, the bimetallic complexes of the invention have enhanced ability to give polyolefins with desirably low melt indices. Certain bimetallic indenoindolyl complexes also provide a way to broaden polymer molecular weight distribution and thereby improve processability simply by regulating the amounts of comonomer and activator used in the polymerization.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: January 11, 2005
    Assignee: Equistar Chemicals, LP
    Inventors: Sandor Nagy, Barbara M. Tsuie, William J. Sartain
  • Patent number: 6841505
    Abstract: A catalyst composition prepared from (a) titanium tetrahydrocarbyloxide, (b) zirconium tetrahydrocarbyloxide, and (c) tetraalkyl ammonium hydroxide, wherein the molar ratio of Zr:Ti is from about 0.02:1 to about 5:1 and the molar ratio of TAAH:(Ti+Zr) is from about 0.05:1 to about 2:1.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: January 11, 2005
    Assignee: E..I. du Pont de Nemours and Company
    Inventor: John H. Eng
  • Patent number: 6835686
    Abstract: A catalyst system comprising a primary catalyst chosen from one or more homogeneous or heterogeneous, inorganic, organic or complex metal-containing compound; and one or more phenolic activator/modifier(s). The catalyst system can be used for the preparation of allylic alcohols by rearrangement of corresponding epoxides, the subsequent Oppenauer type oxidation of allylic alcohols to alpha, beta-unsaturated carbonyl compounds, and/or the preparation of alpha, beta-unsaturated carbonyl compounds by rearrangement of epoxides to corresponding allylic alcohols followed by the subsequent Oppenauer type oxidation of allylic alcohols in a one pot process.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: December 28, 2004
    Assignee: Millennium Specialty Chemicals
    Inventors: Gennadiy G. Kolomeyer, Jacob S. Oyloe
  • Patent number: 6831032
    Abstract: A method for making a solid catalyst component for use in a Ziegler-Natta catalyst includes combining a porous particulate support with a magnesium source in a hydrocarbon solvent to form a mixture, the magnesium source including a hydrocarbon soluble organomagnesium compound and a hydrocarbon insoluble anhydrous inorganic magnesium-halogen compound. The organomagnesium compound is halogenated and the mixture is reacted with a titanium compound or vanadium compound to form the solid catalyst component. The solid catalyst component is then recovered and combined with an organoaluminum cocatalyst to form a Ziegler-Natta catalyst which is advantageously used for the polymerization of olefins, particularly alk-1-enes such as ethylene, propylene, 1-butene, and the like. The catalyst can optionally include internal and external electron donors.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: December 14, 2004
    Assignee: Novolen Technology Holdings C.V.
    Inventor: Wolf Spaether
  • Patent number: 6831138
    Abstract: The invention relates to polymer-containing catalysts (e.g., polymer-containing organo-metal catalysts) that may be useful in various applications (e.g., polymerization of macrocyclic oligoesters). Advantages of these catalysts include the improved ability to prepare, store, and handle the catalyst in open air; higher molar volume and molecular weight; and the ability to produce a blend of reactants and a catalyst (e.g., a macrocyclic oligoester and a polymerization catalyst) for subsequent one-step reaction (e.g., polymerization of macrocyclic oligoesters).
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: December 14, 2004
    Assignee: Cyclics Corporation
    Inventor: Yi-Feng Wang
  • Patent number: 6828267
    Abstract: Described are a MgCl2 based carrier containing Ti(OR)4 and ROH, wherein R is C1˜C7alkyl, and solid catalyst components made from said carrier. The carrier and the solid catalyst components according to the present invention are characterized in that their X-rays powder diffraction spectra, one or two main diffraction lines or a halo appears at 2&thgr; of 2˜14° and in the range of 2&thgr; of 14˜50°, there are the characteristic diffraction lines of anhydrous &agr;-MgCl2. The carrier according to the present invention is directly obtained by reacting anhydrous magnesium chloride with an alcohol and can be used to prepare solid catalyst components without dealcoholization, and the solid catalyst components exhibit high polymerization activity when employed for polymerizing ethylene.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: December 7, 2004
    Assignees: China Petro Chemical Corporation, Research Institute of Petroleum Processing Sinopec
    Inventors: Zhenhua Jing, Rong Junfeng, Wei Zhang, Xiaoyu Hong, Xuhua Zhou
  • Patent number: 6824660
    Abstract: A molecular recognition layer 21 is formed on a sensor face 6a of a chemical CCD 1 having such a structure that a plurality of potential wells 6 constituted to change a depth corresponding to a chemical quantity are arranged two-dimensionally, electric charges are injected into the potential wells 6, and the chemical quantity is converted into an electric charge corresponding to the sizes of the potential wells. Thus, it is provided a novel and useful molecular recognition type chemical CCD capable of measuring an ultramicro chemical substance with an ultrahigh sensitivity at a molecular level.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: November 30, 2004
    Assignee: Horiba, Ltd.
    Inventor: Katsuhiko Tomita