Patents Examined by Andrew Metz
  • Apparatus for electrolytic production of alkali metal hypohalite
    Patent number: 4308124
    Abstract: A process and an apparatus for producing alkali metal hypohalite by passing an alkali metal brine solution through the anode compartment of an electrolytic cell in which the anode compartment and the cathode compartment are separated by a fluid impervious, anion-permeable membrane, providing an aqueous support catholyte into the cathode compartment, impressing an electric potential across the anode and cathode to evolve halogen at the anode and hydrogen at the cathode and recovering alkali metal hypohalite from the anode compartment.
    Type: Grant
    Filed: June 4, 1980
    Date of Patent: December 29, 1981
    Assignee: Oronzio de Nora Impianti Elettrochimici S.p.A.
    Inventor: Alberto Pellegri
  • Oil soluble metal (lower) dialkyl dithiophosphate succinimide complex and lubricating oil compositions containing same
    Patent number: 4306984
    Abstract: Oil insoluble metal salts of lower dialkyl dithiophosphates are rendered oil soluble when combined with alkenyl or alkyl mono- or bis-succinimides. Oil compositions containing this combination are useful as crankcase lubricants.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: December 22, 1981
    Assignee: Chevron Research Company
    Inventor: Elaine S. Yamaguchi
  • Stabilization of hydrocracked oils with certain nitrogen containing aromatic components and phenolic components
    Patent number: 4306985
    Abstract: Hydrocracked lubricating oils are effectively stabilized against deterioration caused by light by the inclusion of at least one of each of certain nitrogen-containing aromatic components and phenolic components. The combination of such components, e.g., dialkyl anilines and alkyl substituted phenols, provide outstanding inhibition to sunlight deterioration.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: December 22, 1981
    Assignee: Atlantic Richfield Company
    Inventor: Thomas F. Wulfers
  • Lubricating composition containing emulsion-sludge inhibitors
    Patent number: 4305835
    Abstract: A lubricating oil composition for use in the crankcase of an internal combustion engine, having improved resistance to the formation of emulsion-sludge in the area under the engine rocker cover, which contains the combination of an oxyalkylated alkylphenol-formaldehyde condensation product and an oxyalkylated trimethylolalkane.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: December 15, 1981
    Assignee: Ethyl Corporation
    Inventors: Rodney I. Barber, David K. Walters
  • Lubricating oils containing acetoacetanilides as antioxidants
    Patent number: 4305833
    Abstract: Acetoacetanilides and related beta-ketoacetanilides are effective antioxidants when used as additives in petroleum products and petroleum-related products. Antioxidant properties are displayed at levels as low as about 0.05 weight percent.
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: December 15, 1981
    Assignee: UOP Inc.
    Inventor: John T. Roberts
  • Lubricating composition containing emulsion-sludge inhibitors
    Patent number: 4305834
    Abstract: A lubricating oil composition for use in the crankcase of an internal combustion engine, having improved resistance to the formation of emulsion-sludge in the area under the engine rocker cover, which contains the combination of an oxyalkylated alkylphenol-formaldehyde condensation product and tetra polyoxyethylene polyoxypropylene derivative of ethylene diamine.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: December 15, 1981
    Assignee: Ethyl Corporation
    Inventors: Rodney I. Barber, David K. Walters
  • Oil additives containing a thiocarbamyl moiety
    Patent number: 4303539
    Abstract: Thiocarbamyl derivatives, including thioureas and thiocarbamic esters derived from the reaction of an alkenyl isothiocyanate with an amine and alcohol or thio, respectively, have utility as an additive for hydrocarbons, particularly fuels and mineral lubricating oils whereby enhanced anticorrosion, oxidation inhibition and/or dispersancy activity is imparted to said hydrocarbons.
    Type: Grant
    Filed: December 19, 1980
    Date of Patent: December 1, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventor: Won R. Song
  • Hydrocarbyl carbamidopropanamide, its method of preparation and lubricating oil composition containing same
    Patent number: 4303535
    Abstract: A hydrocarbyl-substituted carbamidopropanamide represented by the formula: ##STR1## in which R is a hydrocarbyl radical having an average molecular weight ranging from about 150 to 2000 and R' is hydrogen, a hydrocarbyl radical having from 1 to 20 carbon atoms or an R"(X-R'").sub.y -- radical in which R" is an alkyl radical having from 1 to 12 carbon atoms, X is oxygen or an --NH-- radical having from 1 to 3 carbon atoms and y is an integer from 1 to 3, a method for preparing said hydro-carbyl-substituted carbamidopropanamide, and a lubricating oil containing same is provided.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: December 1, 1981
    Assignee: Texaco Inc.
    Inventor: Kechia J. Chou
  • Mercaptothiadiazole adducts of unsaturated esters and lubricants containing same
    Patent number: 4301019
    Abstract: Mercaptothiadiazole is reacted with hydroxyl-containing unsaturated esters, or their borated derivatives, to yield a product that is useful as a friction reducing additive in lubricants.
    Type: Grant
    Filed: October 29, 1980
    Date of Patent: November 17, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Andrew G. Horodysky, Phillip S. Landis
  • Epoxide or episulfide polymer-based hot melt metal working lubricants
    Patent number: 4299712
    Abstract: Metal working operations, especially drawing, are facilitated by applying to the metal a composition which provides lubricity thereto, which melts at about 30.degree.-150.degree. C., and which comprises principally a polymer of a monoepoxide or monoepisulfide containing from about 8 to about 25 carbon atoms. The composition may be applied in liquid form and solidifies on cooling to ambient and normal storage temperatures. Prior to application, the composition is preferably heated to a temperature higher than its melting temperature for ease of flow and uniform dispersion thereof onto the metal.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: November 10, 1981
    Assignee: The Lubrizol Corporation
    Inventor: Donald I. Hoke
  • Process of preparing lubricating oil additive containing tungsten
    Patent number: 4298485
    Abstract: A lubricating oil additive is produced by contacting an aqueous slurry of ammonium paratungstate with an organic phase comprising a major proportion by weight tertiary alkyl amines having the formula C.sub.n H.sub.2n+1 NH.sub.2, where n is from 18 to 22, to extract the tungsten into the organic phase from the aqueous phase while solid ammonium paratungstate is being solubilized into the aqueous phase. The aqueous phase is heated to drive off water so as to form the resulting lubricating oil additive.
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: November 3, 1981
    Assignee: GTE Products Corporation
    Inventors: John A. Powers, James N. Christini
  • Nitrogen-containing products of phosphosulfurized esters and lubricants containing same
    Patent number: 4298484
    Abstract: The invention herein is concerned with novel compositions of matter made by (1) reacting phosphorus pentasulfide with a polyhydroxyester and (2) reacting this product with a nitrogen-containing compound, and lubricant compositions containing same.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: November 3, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Andrew G. Horodysky, Joan M. Kaminski
  • Friction reducing additives and compositions thereof
    Patent number: 4298486
    Abstract: Boric acid salts and borate esters of hydroxyethyl alkyl imidazolines are effective friction reducing additives when incorporated into lubricating compositions.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: November 3, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Andrew G. Horodysky, Joan M. Kaminski
  • Sulfurized aminoguanidine reaction product and lubricant compositions containing same
    Patent number: 4295982
    Abstract: Products from aminoguanidines or their salts, monocarboxylic acids and sulfur and their use as anti-rust and anti-corrosion additives are covered herein.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: October 20, 1981
    Assignee: Mobil Oil Corporation
    Inventor: Gerassimos Frangatos
  • Lubricating oil composition containing boronated N-hydroxymethyl succinimide friction reducers
    Patent number: 4295983
    Abstract: Engine fuel economy is improved by adding a friction-reducing amount of a boronated N-hydroxymethyl aliphatic hydrocarbyl succinimide to the engine crankcase oil.
    Type: Grant
    Filed: June 12, 1980
    Date of Patent: October 20, 1981
    Assignee: Ethyl Corporation
    Inventors: Andrew G. Papay, Joseph P. O'Brien
  • Metal complexes of alkylsuccinic compounds as lubricant and fuel additives
    Patent number: 4292186
    Abstract: Fluid compositions containing a lubricant or liquid hydrocarbon fuel and a minor amount of a complex salt containing a 5- or 6-member ring are provided. These derivatives are made by complexing (1) the reaction product of an alcohol or an aminoalcohol with a succinic compound containing a long-chain hydrocarbon with (2) a metal salt. One such complex is one made by reacting a metal salt with the product of reaction between an alkylsuccinic acid or anhydride and said alcohol or aminoalcohol.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: September 29, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Sheldon Chibnik, Ferdinand P. Otto, deceased, Helen F. Otto, executrix
  • Thio-bis-(hydrocarbon-bisoxazolines) as oleaginous additives for lubricants and fuels
    Patent number: 4292184
    Abstract: Thio-bis-(hydrocarbon-bisoxazolines) which are the reaction products of thio-bis-(hydrocarbon substituted dicarboxylic acid material), for example, thio-bis-(polyisobutenyl succinic anhydride), with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl) amino-methane (THAM), and their derivatives are useful additives in oleaginous compositions, such as sludge dispersants for lubricating oil, or anti-corrosion agents for fuels.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: September 29, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventors: Stanley J. Brois, Antonio Gutierrez
  • Polymeric additive for lubricants and fuels
    Patent number: 4292185
    Abstract: Polymeric additives comprising a diene-modified mono-olefinic backbone polymer functionalized with chlorosulfonyl isocyanate and post-reacted with a nitrogen compound. The additives impart combined detergent, viscosity index improvement and other useful properties to lubricating oils and hydrocarbon motor fuels.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: September 29, 1981
    Assignee: Rohm and Haas Company
    Inventor: Joseph M. Bollinger
  • Oxymolybdenum dialkyldithiophosphates and lubricants containing same
    Patent number: 4290902
    Abstract: This specification relates to novel oxymolybdenum dialkyldithiophosphates having the generic formula [(RO).sub.2 PS.sub.2 ].sub.2 Mo.sub.2 O.sub.4, wherein R is a hydrocarbyl group having 1 to 30 carbon atoms. It also relates to the use of these compounds in lubricants as extreme pressure, antiwear, and oxidation-inhibiting additives.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: September 22, 1981
    Assignee: Texaco Inc.
    Inventors: Stephen A. Levine, William R. White
  • Aqueous lubricant compositions
    Patent number: 4289636
    Abstract: Improved water soluble lubricant compositions are provided by incorporating therein amides derived from alkylamines and succinic, tetrahydrophthalic or tetrahydrofuran tetracarboxylic acids.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: September 15, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Robert H. Davis, Alfred B. Piotrowski