Patents Examined by Mark L. Bell
  • Patent number: 6753291
    Abstract: The present invention pertains to a process for sulfiding a catalyst composition comprising at least one hydrogenation metal component of Group VI and/or Group VIII of the Periodic Table, and an organic additive wherein the catalyst composition is first contacted with an organic liquid, followed by the catalyst being contacted with hydrogen and a sulfur-containing compound in the gaseous phase, wherein less than about 40%, preferably less than about 35%, more preferably less than about 25%, most preferably less than about 15%, of the sulfur present in the sulfided catalyst is added with the organic liquid. The process of the present invention makes it possible to use additive-containing catalysts without loss of activity in units which cannot effect gas phase start-up or are required to carry out a pressure test. The organic liquid may be a hydrocarbon with a boiling range of about 150-500° C., preferably gasoline, white spirit, diesel, gas oil, mineral lube oil, or white oil.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: June 22, 2004
    Assignees: Akzo Nobel N.V., Eurecat Europeenne de Retraltement de Catalysateur S.A.
    Inventors: Sonja Eijsbouts, Frans Lodewijk Plantenga, Pierre Dufresne, Franck Labruyere, Leendert Arie Gerritsen
  • Patent number: 6752864
    Abstract: Granules based on pyrogenically prepared silicon dioxide doped with aluminum oxide by means of an aerosol, which granules have the characteristic data: mean particle diameter: from 10 to 150 &mgr;m BET surface area: from 25 to 100 m2/g pH value: from 3 to 6 tamped density: from 400 to 1200 g/l They are produced by dispersing in water pyrogenically prepared silicon dioxide doped with aluminum oxide by means of an aerosol, spray drying the dispersion, and optionally carrying out tempering and/or silanization. In the silanized form, the granules have the following characteristic data: mean particle diameter: from 10 to 160 &mgr;m BET surface area: from 15 to 100 m2/g pH value: from 3 to 9 tamped density: from 400 to 1200 g/l carbon content: from 0.3 to 12.0 wt.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: June 22, 2004
    Assignee: Degussa AG
    Inventors: Jürgen Meyer, Helmut Mangold, Peter Neugebauer
  • Patent number: 6749675
    Abstract: An aqueous ink composition comprising at least: a colorant; water; 0.005 to 10 wt. %, based on the whole weight of the ink composition, of at least one acetylene alcohol compound represented by the following formula (1): wherein R1, R2 and R3 each independently represents a hydrogen atom, an alkyl group which may be branched, or an alkylphenyl group; and a surface active substance capable of causing the acetylene alcohol compound of formula (1) to dissolve in water.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: June 15, 2004
    Assignee: Seiko Epson Corporation
    Inventor: Masayuki Momose
  • Patent number: 6749676
    Abstract: Erasable inks are provided for use in a writing instruments. In one aspect, the inks include a solvent, and, dispersed in the solvent as a colorant, a pigment having a flake-like morphology, the ink being substantially free of other colorants.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: June 15, 2004
    Assignee: Berol Corporation
    Inventors: Jean L. Spencer, Pawel Czubarow
  • Patent number: 6749734
    Abstract: A capillary array electrophoresis (CAE) micro-plate with an array of separation channels connected to an array of sample reservoirs on the plate. The sample reservoirs are organized into one or more sample injectors. One or more waste reservoirs are provided to collect wastes from reservoirs in each of the sample injectors. Additionally, a cathode reservoir is also multiplexed with one or more separation channels. To complete the electrical path, an anode reservoir which is common to some or all separation channels is also provided on the micro-plate. Moreover, the channel layout keeps the distance from the anode to each of the cathodes approximately constant.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: June 15, 2004
    Assignee: The Regents of the University of California
    Inventors: Peter C. Simpson, Richard A. Mathies, Adam T. Woolley
  • Patent number: 6750170
    Abstract: Single site catalysts which contain a transition metal, a cyclopentadienyl may be activated with alumoxanes in the gas, solution or group-containing ligand, and a phosphinimine ligand slurry phase polymerization of olefin. Alumoxanes contain residual aluminum alkyls which may poison the catalysts. The residual aluminum alkyls may be bound and/or removed from the alumoxanes by treatment with carbohydrates such as cellulose, starch or sugar.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: June 15, 2004
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Dusan Jeremic, Jason Roy Kearns, Iain McLaren Coulter, Robert D. Donaldson
  • Patent number: 6746542
    Abstract: A process for modifying starch by heating starch in an aqueous medium to temperatures above the gelatinization temperature of said starch comprises effecting said modifying of said starch in the presence of (a) a polymeric cationizer selected from the group consisting of the polymers containing vinylamine units and having molar masses of up to 1 million, the polyethyleneimines, the polydiallyldimethylammonium chlorides, the condensates of dimethylamine with epichlorohydrin or dichloroalkanes, the condensates of dichloroethane and ammonia, and the mixtures thereof, and (b) polymeric papermaking drainage aids selected from the group consisting of the water-soluble crosslinked polyamidoamines with or without an ethyleneimine graft, the polymers containing acrylamide and/or methacrylamide units and having molar masses of more than 1 million, the polymers containing vinylamine units and having molar masses of more then 1 million, and the mixtures thereof.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: June 8, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Primoz Lorencak, Andreas Stange, Kurt Diehl, Norbert Mahr
  • Patent number: 6746524
    Abstract: Disclosed is a process for producing a sintered color pencil lead characterized by pigmenting a white or light-colored porous sintered pencil lead with an organic pigment by treating said porous sintered pencil lead with a solution of at least one compound of the following Formula (I) to be filled with said compound and then by forming said organic pigment within the pores by means of heating, A(B)x in which x is an integer from 1 to 8, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo series, phthalocyanine or diketopyrrolopyrrole which is attached to x groups B via one or more heteroatoms selected from the group consisting of N, O and S and forming part of the radical A, B is hydrogen or a group of the formula where at least one group B is not hydrogen and, if x is 2 to 8, all the groups B can be identical or different, and L is any suitable solubilizing group.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: June 8, 2004
    Assignee: Mitsubishi Pencil Kabushiki Kaisha
    Inventor: Katsunori Kitazawa
  • Patent number: 6746541
    Abstract: A crystalline mixture solid composition which has almost no hygroscopicity, is easy to handle and dissolve and hardly worn by abrasion, and comprises &agr;-D-glucopyranosyl-1,1-mannitol and &agr;-D-glucopyranosyl-1,6-sorbitol and may further comprise &agr;-D-glucopyranosyl-1,1-sorbitol in a certain case is obtained in an extremely short period of time by a power-saving and labor-saving process with a small-scale apparatus. A composition which comprises 20 to 75 wt % of &agr;-D-glucopyranosyl-1,1-mannitol, 23 to 70 wt % of &agr;-D-glucopyranosyl-1,6-sorbitol and 2 to 25 wt % of &agr;-D-glucopyranosyl-1,1-sorbitol and is in a crystalline mixture solid state or has a specific surface area of 0.07 to 0.1 m2/g, and a composition which comprises 30 to 75 wt % of &agr;-D-glucopyranosyl-l,1-mannitol, 25 to 70 wt % of &agr;-D-glucopyranosyl-1,6-sorbitol and has a specific surface area of 0.07 to 0.1 m2/g.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: June 8, 2004
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyusho
    Inventors: Ryuzo Ueno, Akihiko Tabata, Junya Honda, Yojiro Furukawa, Sho Arai
  • Patent number: 6746527
    Abstract: An aqueous ink-jet ink composition for MICR applications is provided comprising a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition, wherein the metal oxide pre-dispersion contains metal oxide pigment or particles of a very small particle size, at least one surfactant to aid in the aid in the dispersion of the metal oxide particles. Particularly, the surfactant component is a combination of an anionic surfactant and an anionic-nonionic surfactant, or may be a combination of other types of surfactants.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: June 8, 2004
    Assignee: Nu-kote International, Inc.
    Inventors: Michael J. McElligott, Donald E. Snyder, Jr., Ronald E. Coutta
  • Patent number: 6746982
    Abstract: The invention is a porous carbon body for a fuel cell having an electronically conductive hydrophilic agent and method of manufacture of the body. The porous carbon body comprises an electronically conductive graphite powder in an amount of between 60%-80% by weight of the body; a carbon fiber in an amount of between 5%-15% by weight of the body; a thermoset binder in an amount of between 6%-18% by weight of the body; and, a modified carbon black electronically conductive hydrophilic agent in an amount of between 2%-20% by weight of the body. The body provides for increased wettability without any decrease in electrical conductivity, and also provides for an efficient manufacture without any need for high temperature, costly steps to graphitize the body, or to incorporate post molding hydrophilic agents into pores of the body.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: June 8, 2004
    Assignee: UTC Fuel Cells, LLC
    Inventors: Christopher J. Hertel, John A. S. Bett, Foster P. Lamm, Carl A. Reiser
  • Patent number: 6743749
    Abstract: A Ti—O—N film is formed on an SiO2 substrate by sputtering. For example, TiO2 is used as a target and nitrogen gas is introduced into the atmosphere. Crystallization is carried out by a post-sputtering heat treatment. Then a charge separation material such as Pt is supported on the Ti—O—N film. With the fabricated TiO2 crystals, the Ti—O—N film containing nitrogen exhibits a good catalytic reaction by using visible light as acting light. Since the charge separation material captures electrons or positive holes, recombination of electrons and positive holes is effectively prevented, and consequently more efficient photocatalytic reaction is performed. It is preferable to form a photocatalyst material film (Ti—Cr—O—N film) by sputtering the SiO2 substrate by use of TiO2 and Cr as the target in a nitrogen atmosphere. Crystallization is performed by a post-sputtering heat treatment.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: June 1, 2004
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Takeshi Morikawa, Takahiro Shiga, Ryoji Asahi, Takeshi Ohwaki, Yasunori Taga
  • Patent number: 6743746
    Abstract: A catalyst used in the low-temperature pyrolysis of hydrocarbon-containing polymer materials, and being mainly intended for use in the recycling of rubber waste materials. The catalyst is prepared from a carbon-iron component in the form of microscopic carbon particles and ultra-dispersed iron particles. In order to increase the yield of light hydrocarbon fractions in the condensate and to bind substantially completely the sulphur in the products of the rubber pyrolysis, the catalyst further contains a metal-carbon component. This component consists of the product from the stripping and the pyrolysis of a dispersion that comprises at least one salt of a metal from the group VIII in the periodic table which is capable of decay upon heating in order to form an oxide, wherein the metal is selected from the group comprising iron, nickel and cobalt. The dispersion further includes a carbohydrate as well as a highly volatile solvent.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: June 1, 2004
    Assignee: Oy Altimeco LTD
    Inventors: Emmanuil Volfovich Prilutsky, Oleg Volfovich Prilutsky
  • Patent number: 6740620
    Abstract: An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: May 25, 2004
    Assignee: Rohn and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Daniel A. Bors, Fernando Antonio Pessoa Cavalcanti, Michael Bruce Clark, Jr., Anne Mae Gaffney, Scott Han
  • Patent number: 6740619
    Abstract: The present invention relates to a process for the preparation of metal phthalocyanine sulphonamide [MPc(SO2NHR)x] catalyst useful for sweetening of LPG and light petroleum distillates which comprises reacting a metal phthalocyanine with chlorosulphonic acid at 90-150° C. for 1-5 hrs. cooling the reaction mixture adding 1-7 parts of a chloride reagent heating the said mixture at 60-80° C. from 0.5-3 hrs. to obtain the metal phthalocyanine sulphonyl chloride, isolating it by adding the reaction mixture in ice cold water, reacting the isolated metal phthalocyanine sulphonyl chloride with an amine of general formula H2NR where R is selected from hydrogen, aryl, alkyl and cycloalkyl in an aqueous or non-aqueous medium or a mixture thereof at a temperature in the range −4 to 15° C.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: May 25, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Bir Sain, Som Nath Puri, Gautam Das, Bhagwati Prasad Balodi, Sunil Kumar, Anil Kumar, Virendra Kumar Kapoor, Virendra Kumar Bhatia, Turuga Sundara Rama Prasada Rao, Gur Pratap Rai
  • Patent number: 6734134
    Abstract: A new synthesis of a Ziegler-Natta catalyst uses a multi-step preparation that includes treating a magnesium dialkoxide compound with two halogenating/titanating agents, the second stronger than the first, an organoaluminum preactivating agent, and a heat treatment. The catalyst may be used in the polymerization of olefins, particularly ethylene, to control the molecular weight distribution of the resulting polyolefins.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: May 11, 2004
    Assignee: Fina Technology, Inc.
    Inventors: Steven D. Gray, Tim J. Coffy
  • Patent number: 6730630
    Abstract: A photocatalyst is provided, which comprises a titanium oxide and a metal-containing compound other than titanium oxide on the surface of the titanium oxide, wherein the metal-containing compound is a metal oxide having an acid site and the photocatalyst has a BET specific surface area of about 55 m2/g or larger, or wherein the metal-containing compound is a basic metal-containing compound and the photocatalyst has an anatase-crystalline structure and an anatase-crystalline size of about 10 nm or larger. The photocatalyst shows sufficiently high photocatalytic activities by irradiation of visible light.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: May 4, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kensen Okusako, Hiroyuki Ando
  • Patent number: 6727333
    Abstract: There are disclosed: (i) a first solid catalyst component (A1) obtained by contacting (a) a carrier of carboxyl group-carrying polymer particles having an average particle size of from about 1 to 200 &mgr;m, (b) an organometallic compound of the number 1, 2 or 13 group of metals in the periodic table of elements, and (c) a transition metal compound of the number 4 group of metals of the periodic table of elements, and a second solid catalyst component (A2) obtained by contacting (a), (b), (c) and (d) a phenol compound, and production processes of the solid catalyst components (A1) and (A2), (ii) a catalyst obtained by combining the solid catalyst component (A1) or (A2) with an organoaluminum compound (B); and (iii) a process for producing an olefin polymer with a catalyst of the invention, wherein the polymer produced is extremely low in its content of lower molecular weight components and low crystallinity components, and superior in its powder properties.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: April 27, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kotohiro Nomura, Seiki Kiuchi, Tatsuya Miyatake
  • Patent number: 6726755
    Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a colorant compound of the formula wherein M is an atom or group of atoms capable of bonding to the central cavity of a phthalocyanine molecule, wherein axial ligands optionally can be attached to M. Also disclosed are printing processes using the phase change inks.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: April 27, 2004
    Assignee: Xerox Corporation
    Inventors: Donald R. Titterington, Michael B. Meinhardt, Jeffrey H. Banning, James D. Mayo, James M. Duff, Roger E. Gaynor, Harold R. Frame
  • Patent number: 6726756
    Abstract: The present invention provides an ink jet ink composition suitable for use in continuous ink jet printing comprising a liquid vehicle, a binder resin, a colorant, and optionally a surfactant. The liquid vehicle includes an organic solvent or blend of solvents having an evaporation rate less than about 1.2, relative to n-butyl acetate standard which has an evaporation rate of 1.0. The present invention further provides a method for eliminating or reducing make-up consumption in continuous ink jet printing. The present invention further provides a process of continuous ink jet printing which is free or substantially free of make-up consumption.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: April 27, 2004
    Assignee: Videojet Technologies Inc.
    Inventors: Wan Kang Zou, Linfang Zhu, Xuedong Zhan, Fengfei Xiao, Xiaomang Wang