Patents Examined by W. J. Shine
  • Patent number: 5258348
    Abstract: A catalyst comprising a preshaped porous support material having applied thereto in finely divided form an active compound chosen from at least one compound of vanadium, chromium, manganese, iron, cobalt, nickel, copper and zinc, and optionally a promoter chosen from a least an alkali or alkaline earth metal metal compound, method for the preparation thereof and use thereof in the dehydrogenation of hydrocarbons.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: November 2, 1993
    Assignee: The Dow Chemical Company
    Inventors: Frederik R. Van Buren, Dick E. Stobbe, John W. Geus, Adrianus J. Van Dillen
  • Patent number: 5258340
    Abstract: This invention relates to improved catalysts for the oxidation of carbon monoxide and methods of preparing these catalysts. The catalysts of this invention are prepared using a sequential precipitation process which generates catalysts that contain substantially layered metal oxides, both supported and unsupported, and, in some embodiments of the invention, a noble metal or mixture of noble metals layered on the metal oxides. These catalysts are particularly useful in smoking articles.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: November 2, 1993
    Assignee: Philip Morris Incorporated
    Inventors: Robert L. Augustine, Setrak Tanielyan
  • Patent number: 5258349
    Abstract: This invention is a graded catalyst comprising palladium and also a partial combustion process in which the fuel is partially combusted using that catalyst. The catalyst utilizes a catalytic support structure suitable for high flow rates of combustible gas mixtures through it. The catalyst is situated on the support so that in the flowing gas stream a leading portion of the support has a higher combustion activity, such as by a higher concentration of catalytic metal, than has the trailing portion. The combination of graded catalyst and support provides a low "light off" temperature for the combustible gas (only a low preheat temperature is needed to cause the combustion reaction to begin) and yet does not cause "hot spots" to occur because of excess activity. The combustion gas produced by the catalytic process may be at a temperature below the adiabatic combustive temperature, may be used at that temperature, or fed to other combustion stages for further use in a gas turbine, furnace, boiler, or the like.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: November 2, 1993
    Assignees: Catalytica, Inc., Tanaka Kikinzoku Kogyo K.K.
    Inventors: Ralph A. Dalla Betta, Kazunori Tsurumi, Toru Shoji
  • Patent number: 5256452
    Abstract: A stable one package etch-resistant film-forming composition is disclosed. The composition includes a polyepoxide component having an epoxy equivalent weight on resin solids of less than about 600. The composition further includes a polyacid curing agent having an average acid functionality of greater than 2. The composition is substantially free of basic esterification catalyst, has a cured softening point of greater than about 20.degree. C., and is stable for use as a single-component composition. Also disclosed is a process for applying a color-plus-clear composite coating to a substrate which includes applying a acid-catalyzed thermosetting film-forming composition to a substrate to form a basecoat. The process also comprises applying a stable etch-resistant film-forming composition to the basecoat which includes a polyepoxide and a polyacid curing agent as described above, wherein the topcoat is substantially free of basic esterification catalyst, has a cured softening point of greater than about 20.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: October 26, 1993
    Assignee: PPG Industries, Inc.
    Inventors: Susan U. McMonigal, Debra L. Singer, Dennis A. Simpson, Joseph A. Klanica, Michael A. Mayo
  • Patent number: 5254520
    Abstract: A method of forming a methanol synthesis catalyst precursor comprises forming a precipitate comprising compounds, thermally decomposable to oxides or mixed oxides, of copper, zinc, aluminum and at least one element of Group IVB and/or Group VIIB of the Periodic Table of Elements.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: October 19, 1993
    Assignee: CSIR
    Inventor: Alkeos Sofianos
  • Patent number: 5254519
    Abstract: A catalyst composition suitable for three-way conversion of internal combustion engine, e.g., automobile gasoline engine, exhaust gases includes a catalytic material disposed in on a carrier. The catalytic material contains a co-formed (e.g., co-precipitated) rare earth oxide-zirconia support on which a first rhodium catalytic component is dispersed, and an alumina support having a platinum catalytic component dispersed thereon. The catalytic material may also include a second rhodium catalytic component dispersed on the alumina support bearing the platinum or a second alumina support. The catalytic material may be disposed as a catalytic coating directly on the carrier or upon an optional undercoat which is disposed on the carrier and which includes alumina and optionally, ceria and/or, iron oxide.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: October 19, 1993
    Assignee: Engelhard Corporation
    Inventors: Chung-Zong Wan, Samuel J. Tauster, Harold N. Rabinowitz
  • Patent number: 5250489
    Abstract: This invention is a catalyst structure having integral heat exchange surfaces and a method for using the structure in highly exothermic processes, such as a combustion process, while maintaining the catalyst and the structure wall at a temperature below the adiabatic combustion temperature.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: October 5, 1993
    Assignees: Catalytica, Inc., Tanaka Kikinzoku Kogyo K.K.
    Inventors: Ralph A. Dalla Betta, Fabio H. Ribeiro, Toru Shoji, Kazunori Tsurumi, Nobuyasu Ezawa, Sarento G. Nickolas
  • Patent number: 5250490
    Abstract: The present invention provides an electroless process for making a catalyst in a liquid or gaseous medium comprising contacting a base metal with a chemical cleaning agent and simultaneously or sequentially treating said base metal under reducing conditions with a noble metal-containing material, the catalyst prepared using the process, and a method of using the catalyst.
    Type: Grant
    Filed: December 24, 1991
    Date of Patent: October 5, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: James S. Ritscher, Wei T. Yang, George M. Omietanski, Robert L. Ocheltree, Earl E. Malson
  • Patent number: 5248650
    Abstract: A catalyst for the purification of exhaust gas comprises a combination of palladium carried on cerium oxide and palladium carried on alumina, or further rhodium carried on alumina, in which a weight ratio of palladium carried on cerium oxide to palladium carried on alumina is 2:8-8:2. Preferably, the cerium oxide contains at least one of zirconium, lanthanum, neodymium and praseodymium, or the alumina contains at least one of zirconium, lanthanum, neodymium, cerium, strontium and barium. This catalyst develops excellent purification performances against exhaust gas of oxidizing atmosphere to reducing atmosphere.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: September 28, 1993
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Toru Sekiba, Akihide Okada, Fumihiro Uchikawa
  • Patent number: 5248648
    Abstract: This invention relates to a hydrorefining catalyst containing ruthenium sulphide and cobalt and/or nickel sulphide on a refractory oxides support. These catalysts are only very slightly inhibited by polyaromatic compounds or hydrogen sulphide.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: September 28, 1993
    Assignee: Elf France
    Inventors: Michele Breysse, Jacek Orlewski, Thierry des Courieres, Michel Vrinat
  • Patent number: 5246904
    Abstract: A chloride-free catalyst for wash-and-wear finishing textiles with formaldehyde-free crosslinking agents contains magnesium and fluoroborate ions in a ratio of from 1:0.1 to 1:4 and guarantees odorless results.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: September 21, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Pia Hois, Toni Simenc
  • Patent number: 5246569
    Abstract: A process for the catalytic hydrodesulfurization of hydrocarbon- containing feeds using a catalyst of a phosphorus component, a cobalt component and a Group VIB metal component on an alumina carrier.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: September 21, 1993
    Assignee: Akzo N.V.
    Inventors: Jacobus J. L. Heinerman, Antonius J. van Hengstum, Menno de Mind
  • Patent number: 5246614
    Abstract: Soap bars are prepared by mixing a soap base with a metal oxide coated mica pearlescent pigment, that is strongly colored, or alternately with the colorant added separately to the soap base, so that the soap bars are brightly colored.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: September 21, 1993
    Assignee: The MEARL Corporation
    Inventors: Erika M. Baumgartner, Philip Greenberg, Harold A. Miller
  • Patent number: 5246902
    Abstract: This invention relates to a crystalline synthetic microporous solid containing gallium and phosphorus, whose crystal structure is of the LTA type.After calcination at a temperature above 200.degree. C. the solid obtained can be employed as a catalyst for converting hydrocarbons or as an adsorbent.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: September 21, 1993
    Assignee: Societe Nationale Elf Aquitaine
    Inventors: Abdallah Merrouche, Joel Patarin, Henri Kessler, Didier Anglerot
  • Patent number: 5244593
    Abstract: Stable colorless detergent compositions are provided comprising anionic and/or nonionic surfactant, oxygen bleach and metal sequestering agent. The compositions do not discolor over time or under harsh temperatures.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: September 14, 1993
    Assignee: The Procter & Gamble Company
    Inventors: Brian J. Roselle, Donald T. Speckman
  • Patent number: 5244858
    Abstract: A catalyst composition for the hydrodesulfurization of a hydrocarbon oil, comprising a composite of metal oxides comprising:aluminum; andat least one metal selected from a group consisting of(A) at least one metal belonging to Group VIB of the Periodic Table; and(B) at least one the metal belonging to Group VIII of the Periodic Table;where the at least one metal belonging to Group VIB of the Periodic Table accounts for, in terms of as oxide, from 10 to 60% by weight with respect to the total catalyst, and the at least one metal belonging to Group VIII of the Periodic Table accounts for, in terms of oxide, from 3 to 20% by weight with respect to the total catalyst, and wherein no peak assigned to Y-Al.sub.2 O.sub.3 is present in X-ray diffraction.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: September 14, 1993
    Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.
    Inventors: Kazushi Usui, Takashi Fujikawa, Katsuyoshi Ohki
  • Patent number: 5242880
    Abstract: Provided are novel titania comprising anatase titanium dioxide and sodium, potassium, calcium, magnesium, barium, zinc, or magnesium salts of sulfuric or phosphoric acid. The titania of this invention are useful in the pigmentation of oxidizable polymers, while at the same time providing a catalyst system for the photooxidation of said oxidizable polymers.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: September 7, 1993
    Assignee: Eastman Kodak Company
    Inventor: Gether Irick, Jr.
  • Patent number: 5242883
    Abstract: In an exhaust gas disposable catalyst which is a .gamma.-alumina catalyst prepared by sol-gel process, .gamma.-alumina has more than 300 m.sup.2 /g specific surface area and the catalyst element is supported on the .gamma.-alumina and dispersed in pores thereof. The exhaust gas disposable catalyst is obtained by adding the catalyst element as a solution of salt before gelating in sol-gel process.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: September 7, 1993
    Assignee: Mazda Motor Corporation
    Inventors: Satoshi Ichikawa, Akihide Takami, Hideharu Iwakuni
  • Patent number: 5242882
    Abstract: Reticulated ceramic or metal substrate coated with Cobalt compounds, noble metals or mixtures thereof are superior catalysts for the oxidation of ammonia to produce nitric oxide.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: September 7, 1993
    Assignee: Scientific Design Company, Inc.
    Inventor: Larry E. Campbell
  • Patent number: 5242881
    Abstract: The present invention relates to rare earth complex oxide combustion catalysts wherein perovskite-type rare earth complex oxide active components are carried on a support using mullite as the main phase. The present invention relates also to a process for preparing a rare earth complex oxide combustion catalyst which comprises impregnating the support with the solution of the metallic ions prepared by the ABO.sub.3 stoichiometry and then drying and calcining it. Furthermore, the present invention relates to the use of the said catalyst as a combustion catalyst for CO in the fluid catalytic cracking (FCC) process of petroleum refining.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: September 7, 1993
    Assignee: Peking University
    Inventors: Youqi Tang, Bingxiong Lin