Patents Represented by Attorney Henry H. Gibson

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  • Lubricant additive to prevent camshaft and valve train wear in high performance turbocharged engines
    Patent number: 5415793
    Abstract: A lubricating oil composition for high-performance gasoline and diesel engines comprising:(a) a major amount of a base oil having a lubricant viscosity;(b) a zinc dithiophosphate antiwear/antioxidant additive; and(c) a minor amount of an organic phosphate-ester as antiwear extreme wear additive.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: May 16, 1995
    Assignee: Texaco Inc.
    Inventors: Assadullah Nassry, Mary A. Dahlstrom, Predrag Panic, Mieke Mortier
  • Corrosion-inhibited antifreeze formulations having monocarboxylic, triazole, and imidazole compounds
    Patent number: 5366651
    Abstract: Antifreeze concentrate is disclosed having water soluble liquid alcohol freezing point depressant and corrosion inhibitor comprising carboxylic acids or their salts and a triazole compound, wherein the concentrate contains: (1) C.sub.5 -C.sub.16 aliphatic monobasic acid or the alkali metal, ammonium or amine salt thereof; (2) hydrocarbyl triazole; and (3) imidazole.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: November 22, 1994
    Assignee: Texaco Services (Europe) Ltd.
    Inventors: Jean-Pierre Maes, Walter A. van Neste
  • Multifunctional viscosity index improvers based on polymers containing sulfonamides
    Patent number: 5356999
    Abstract: Multifunctional viscosity index improvers for lubricating oils containing an EPM or EPDM polymer onto which has been grafted an unsaturated reactive monomer and thereafter reacted with amines containing sulfonamide units.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: October 18, 1994
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Benjamin J. Kaufman, Robert T. Biggs
  • Deslagging gasifiers by controlled heat and derivatization
    Patent number: 5338489
    Abstract: Slag deposits in partial oxidation reactors, like coke gasifiers, are removed by controlling temperature and slag derivatization. Derivatized slag is fluidized and leaves the reactor without solidifying in and filling the reactor outlet.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: August 16, 1994
    Assignee: Texaco Inc.
    Inventors: Dick Y. Jung, James K. Wolfenbarger, Donald D. Brooker, Allen M. Robin, Jerrold S. Kassman
  • Combining dispersant viscosity index improver and detergent additives for lubricants
    Patent number: 5314632
    Abstract: Lubricants with enhanced viscosities are made from additives by combining dispersant viscosity index polymer, like dispersancy-substituted polyolefins, and detergent, like overbased, oil-soluble, metal salts, before adding dispersant package.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: May 24, 1994
    Assignee: Texaco Inc.
    Inventors: Brian L. Papke, Issac D. Rubin, John Castrogiovanni, Jr.
  • Combining dispersant viscosity index improver and detergent additives for lubricants
    Patent number: 5294354
    Abstract: Lubricants with enhanced viscosities are made from additives by combining dispersant viscosity index improver, like dispersant nitrogen-substituted polyolefins, and detergent, like select overbased, oil-soluble, metal salts, before adding dispersant package.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: March 15, 1994
    Assignee: Texaco Inc.
    Inventors: Brian L. Papke, Isaac D. Rubin, John Castrogiovanni, Jr.
  • Selective hydrodesulfurization of naphtha using deactivated hydrotreating catalyst
    Patent number: 5286373
    Abstract: Naphtha is selectively hydrodesulfurized using deactivated hydrotreating catalyst to remove sulfur while minimizing loss in octane level due to olefin saturation.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: February 15, 1994
    Assignee: Texaco Inc.
    Inventors: Chakka Sudhakar, Gerald G. Sandford
  • Compatible corrosion inhibitor combinations
    Patent number: 5269956
    Abstract: Solutions of potassium, aliphatic monocarboxylate, hydrocarbyl dicarboxylate and hydrocarbyl triazole, with one or more silicate, phosphate, borate, or nitrate, have superior compatibility and anticorrosion properties, useful in heat transfer fluids, antifreezes and metal corrosion inhibition.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: December 14, 1993
    Assignee: Texaco Chemical Co.
    Inventors: David L. Miller, John M. Larkin
  • Combinations of alkanoic hydrocarbyl dicarboxylic and carbocyclic alkanoic acids or salts useful as heat transfer fluid corrosion inhibitors
    Patent number: 5242621
    Abstract: Corrosion inhibitors containing alkanoic, hydrocarbyl dicarboxylic and carbocyclic-substituted, alkanoic acids or salts give high performance, heat transfer fluids and antifreezes, with improved properties including storage stability.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: September 7, 1993
    Assignee: Texaco Chemical Co.
    Inventors: David L. Miller, Brian L. Benac, John F. Knifton
  • Polyurea elastomers made using polyamine/carbonyl adducts as chain extenders
    Patent number: 5218005
    Abstract: Low molecular weight, polyoxyalkylene polyamine reacts with carbonyl compound making polyamine adduct used as chain extender in preparing tack-free, smooth polyurea elastomers, useful in solventless spray coatings.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: June 8, 1993
    Assignee: Texaco Chemical Company
    Inventors: Robert L. Zimmerman, Dudley J. Primeaux
  • Bis(2,2',6,6'-tetramethyl-4-aminoethyleneamidopiperidyl) polyoxyalkylene
    Patent number: 5210195
    Abstract: Polyoxyalkylene diamines react with excess acrylate to form diesters which react with 2,2',6,6'-tetramethyl-4-aminopiperidines to give a product of formula 1, useful as photostabilizer for photosensitive materials.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: May 11, 1993
    Assignee: Texaco Chemical Co.
    Inventors: Jiang-Jen Lin, George P. Speranza
  • Polyurea elastomers made using polyoxyalkylene tetra-or higher functional amine chain extenders
    Patent number: 5189075
    Abstract: Polyurea elastomers, made using low molecular weight polyoxyalkylene polyamines, like aminated, propoxylated .alpha.-methyl glucoside, as chain extenders for reactions of polyoxyalkylene polyamine with polyisocyanate, have improved spray and foam properties, including faster cure and foam stability.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: February 23, 1993
    Assignee: Texaco Chemical Co.
    Inventors: Robert L. Zimmerman, Dudley J. Primeaux
  • Mixtures of polyoxyalkylene ester and aminopolyazoles as oxidation and corrosion resistant lubricant additives
    Patent number: 5171462
    Abstract: Mixtures of block alkoxy co- or terpolymer hydrocarboxylates and aminopolyazole increase the oxidation and corrosion resistance of lubricants, particularly diesel engine oil.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: December 15, 1992
    Assignee: Texaco Inc.
    Inventors: Thomas F. DeRosa, Rodney L. Sung, Benjamin J. Kaufman, Ronald L. O'Rourke
  • Wear resistant lubricant additives made of ethylene/.alpha.-olefin polymer grafted with perfluoro-substituents
    Patent number: 5141661
    Abstract: Ethylene/.alpha.-olefin polymers grafted with perfluoro-substituted, ethylenically-unsaturated epoxides and then reacted with perfluoro-substituted nucleophiles, provide enhanced wear resistance to lubricating oils.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: August 25, 1992
    Assignee: Texaco Inc.
    Inventors: Thomas F. DeRosa, Benjamin J. Kaufman, Rosemary J. Jennejahn, Joseph M. Russo
  • Polyoxyalkylene N-acyl sarcosinate ester compounds and ORI-inhibited motor fuel compositions
    Patent number: 5131921
    Abstract: Motor fuel compositions comprising gasoline are improved to control octane requirement increase (ORI) by including an ester of an N-acyl sarcosinate acid or salt and a polyether polyol including oxyalkylene units selected from oxypropylene and/or oxybutylene.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: July 21, 1992
    Assignee: Texaco Inc.
    Inventors: Rodney L. Sung, Daniel T. Daly
  • Emulsion and cross-linkable compositions containing polycarbodimides
    Patent number: 5081173
    Abstract: Disclosed are surface-active polycarbodiimides containing a hydrophilic portion and a hydrophobic portion joined through the reaction of a carbodiimide group with a reactive functional group. The surface-active polycarbodiimides may be linear or branched, monodisperse or polydisperse, but preferably are of the branched, monodisperse type. The surface-active polycarbodiimides are useful as surfactants, and are particularly useful as emulsifiers in cross-linkable, carboxyl-containing resin systems, such as aqueous latexes.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: January 14, 1992
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventor: James W. Taylor
  • Production of ethylidene diacetate from dimethyl acetal
    Patent number: 5026903
    Abstract: A process for the production of ethylidene diacetate by the catalytic reaction of dimethyl acetal, methyl acetate and carbon monoxide in contact with a homogeneous catalyst system containing rhodium metal atom and lithium iodide.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: June 25, 1991
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventor: Edgar C. Baker
  • Production of carboxylic acids from alcohols using rhodium complex catalysts and organic ester source
    Patent number: 5026907
    Abstract: A process for the production of organic carboxylic acids and organic carboxylic acid anhydrides by the catalytic reaction of an alcohol of the formula ROH and carbon monoxide in contact with an organic ester source and a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo (.dbd.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: June 25, 1991
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventors: Richard W. Wegman, David J. Schreck
  • Method for obtaining analytes from liquid menstrua for analysis
    Patent number: 5024952
    Abstract: Solutes are obtained from liquid menstrua by bubbling gas through the liquid menstrua wherein solute passes to the interface between the bubble and the liquid menstrum and/or into the gas within the bubble. The bubble breaks the surface of the liquid menstruum and defines an entrainment zone which is subjected to electromagnetic radiation to maintain solute in the vapor space. The recovered solute may, for instance, be subjected to analytical analysis.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: June 18, 1991
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventor: George M. Alsop
  • Low temperature active aliphatic aromatic polycarbodiimides
    Patent number: 5008363
    Abstract: A mixed aliphatic/aromatic polycarbodiimide prepared by first polymerizing an aliphatic isocyanate or mixture thereof, optionally in the presence of a polyfunctional isocyanate; arresting polymer chain growth by reaction with a stoichiometrically deficient amount of a monofunctional isocyanate-reactive compound, followed by further polymerization with an aromatic diisocyanate.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: April 16, 1991
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventors: Charles B. Mallon, Howard Chu