Patents Examined by Andrew Metz
  • Lubricants and functional fluids containing .beta.-thiopropionitriles and similar polyfunctional nitriles
    Patent number: 4209408
    Abstract: Compositions useful as lubricants and functional fluids comprise an oleaginous liquid of lubricating viscosity, typically a mineral oil, and a sulfur-containing polyfunctional nitrile. The preferred nitriles are cyanoethylation products of mercaptans. They serve as seal swelling agents and/or demulsifiers.
    Type: Grant
    Filed: May 6, 1977
    Date of Patent: June 24, 1980
    Assignee: The Lubrizol Corporation
    Inventor: Donald I. Hoke
  • Improved crankcase lubricant composition
    Patent number: 4208293
    Abstract: Lubricating oil adapted for use as a crankcase lubricant in internal combustion engines containing a friction-reducing amount of a fatty acid amide or ester of diethanolamine.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: June 17, 1980
    Assignee: Ethyl Corporation
    Inventor: Edward F. Zaweski
  • Process and composition for preparing water-emulsifiable metal-working lubricant compositions
    Patent number: 4206059
    Abstract: This invention is directed to a composition and process for the preparation of water-emulsifiable metal-working lubricant compositions having improved storage stability and superior characteristics, preferably compositions for drawing, rolling and other applications in cold metal working operations.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: June 3, 1980
    Assignee: Texaco Inc.
    Inventors: James R. Burton, Vernon W. Cantwell
  • Lubricant compositions containing alkylated aromatic amino acid antioxidants
    Patent number: 4204970
    Abstract: Lubricant compositions containing polymer alkylated aromatic amino acids as antioxidants and a process for the preparation of these amino acids comprising hydrolysis of cyclic keto amides formed from an intramolecular acylation of an imide of an aromatic amine.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: May 27, 1980
    Assignee: Standard Oil Company (Indiana)
    Inventors: Richard J. Lee, Samuel W. Harris
  • Lubricant composition containing sulfurized olefin extreme pressure additive
    Patent number: 4204969
    Abstract: An additive for improving extreme pressure properties of lubricating oil is made by reacting sulfur monochloride with a monoolefin (e.g. isobutene) in the presence of a promoter amount of a lower alkanol (e.g. methanol) to form an adduct, reacting the adduct with sulfur and sodium sulfide in an aqueous alkanol made at a ratio of 0.1-0.4 gram atom of sulfur per gram mole of sodium sulfide and then recovering the reaction product.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: May 27, 1980
    Assignee: Edwin Cooper, Inc.
    Inventors: Andrew G. Papay, Joseph P. O'Brien
  • Stable lubricant composition containing molybdenum disulfide and method of preparing same
    Patent number: 4203854
    Abstract: A lubricating fluid comprising a refined petroleum base stock containing minor controlled amounts of each of a finely-divided, particulate molybdenum disulfide, a viscosity index improver, an anti-wear agent and a corrosion inhibitor.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: May 20, 1980
    Assignee: The Ore-Lube Corporation
    Inventor: Joseph J. Silverstein
  • Multifunctional additives for lubricants
    Patent number: 4202782
    Abstract: Condensation product is prepared by condensing diphenylamine and 2-octanone in the presence of acid catalyst. The product is formulated with p,p'-dioctyldiphenylamine antioxidant and incorporated in lubricants for inhibition of degradation due to oxidation and corrosion.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: May 13, 1980
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventors: Lester A. Doe, Jr., Lester A. Brooks
  • Tertiary carbinamine modified mannich compositions and lubricants containing same
    Patent number: 4202784
    Abstract: Mannich additives formed from a tertiary carbinamine, a substantially hydrocarbon compound having at least one acidic or active hydrogen, a polyamine and a formaldehyde-yielding reagent.
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: May 13, 1980
    Assignee: Standard Oil Company (Indiana)
    Inventors: Paul J. Cahill, John H. Udelhofen
  • Method of preparing overbased magnesium sulfonates
    Patent number: 4201682
    Abstract: Over-based oil-soluble magnesium sulfonate compositions are formed by one-step carbonation of a reactant mixture containing magnesium hydroxide formed in situ.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: May 6, 1980
    Assignee: Standard Oil Company (Indiana)
    Inventors: Albert R. Sabol, Dennis G. Petrille, Edward W. Heffern
  • Lubricant composition of improved friction reducing properties
    Patent number: 4201684
    Abstract: Lubricating oil adapted for use as a crankcase lubricant in internal combustion engines containing a friction-reducing amount of a sulfurized fatty acid amide, ester or ester-amide of an oxyalkylated amine.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: May 6, 1980
    Assignee: Ethyl Corporation
    Inventor: Robert E. Malec
  • Fatty acid-derived lubricants and additives
    Patent number: 4199460
    Abstract: This invention relates to addition products of dialkylphosphorodithioic acid, hexachlorocyclopentadiene, or bromotrichloromethane to unsaturated or epoxy fatty acid amides and esters. These products are useful as extreme pressure lubricants and additives.
    Type: Grant
    Filed: September 26, 1978
    Date of Patent: April 22, 1980
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Gene Sumrell, Robert R. Mod, Frank C. Magne, Ronald E. Koos
  • Alkylene glycol esters of carboxylate half esters of 1-aza-3,7-dioxabicyclo[3.3.0] oct-5-yl methyl alcohols, their preparation and use as additives for gasoline and middle distillate fuels and lubricants
    Patent number: 4199463
    Abstract: Alkylene glycol esters of carboxylate half esters of 1-aza-3,7-dioxabicyclo[3.3.0] oct-5-yl methyl alcohols which are the reaction products of organic acid materials, preferably long chain dicarboxylic anhydrides such as octadecenyl and polyisobutenylsuccinic anhydrides and aldehyde/tris [hydroxymethyl] aminomethane (THAM) adducts or mixtures are friction reducing additives for liquid hydrocarbons, such as gasoline middle distillates and lubricants.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: April 22, 1980
    Assignee: Exxon Research & Engineering Co.
    Inventors: Jack Ryer, Stanley Brois, Esther D. Winans
  • Lubricant compositions
    Patent number: 4198305
    Abstract: Polyesters of polysulfideorganocarboxylic acids have improved solubility in lubricant compositions and thereby impart good load-carrying properties to such lubricants when incorporated therein. Oxidized derivatives thereof wherein at least one of the sulfide groups is oxidized to a sulfoxide or a sulfone, also impart good load-carrying characteristics to lubricants containing same.
    Type: Grant
    Filed: June 14, 1978
    Date of Patent: April 15, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Abraham O. M. Okorodudu
  • Oil-soluble adducts of benzotriazole and dialkylamines and lubricant compositions containing the same
    Patent number: 4197210
    Abstract: Certain new adducts of benzotriazole and dialkylamines, the alkyl groups of which contain from 4 to 20 carbon atoms, are provided. Lubricant compositions having excellent anticorrosion characteristics are also provided when minor amounts of such adducts are added thereto.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: April 8, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Robert F. Bridger
  • Lactam carboxylic acids, their method of preparation and use
    Patent number: 4196091
    Abstract: This invention relates to hydrocarbyl lactam-carboxylic acids prepared by a reaction of a hydrocarbyl succinic anhydride with an imine and their use as corrosion inhibitors in crankcase lubricant compositions.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: April 1, 1980
    Assignee: Texaco Inc.
    Inventor: Raymond C. Schlicht
  • Perfluorinated polyalkylether based lubricant composition
    Patent number: 4194983
    Abstract: A lubricant composition comprising a perfluorinated polyalkylether base fluid and a minor amount of a diphospha-s-triazine in which the two phosphorus atoms are substituted by aromatic groups and the carbon atom is substituted by a perfluoroalkyl or perfluoroalkylether moiety.
    Type: Grant
    Filed: February 6, 1979
    Date of Patent: March 25, 1980
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Kazimiera J. L. Paciorek, Reinhold H. Kratzer, Jacquelyn Kaufman, Thomas I. Ito, James H. Nakahara
  • Sulfurized olefin lubricant additives and compositions containing same
    Patent number: 4194980
    Abstract: Lubricant additives having substantially improved extreme pressure characteristics are provided by modifying certain sulfurized olefins by reacting said olefins with a cyclic polydisulfide under controlled reaction conditions and at a temperature of at least about 130.degree. C.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: March 25, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Milton Braid
  • N-sulfonylated polyalkenylsuccinimide and lubricant composition
    Patent number: 4194982
    Abstract: An N-sulfonylated hydrocarbon-substituted succinimide represented by the formula: ##STR1## in which R and R' are hydrocarbon radicals and a lubricating oil composition for an internal combustion engine containing an N-sulfonylated hydrocarbon-substituted succinimide.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: March 25, 1980
    Assignee: Texaco Inc.
    Inventor: Kechia J. Chou
  • Polymeric compositions, method for their preparation, and lubricants containing them
    Patent number: 4194985
    Abstract: Compositions useful as multi-purpose lubricant and functional fluid additives and as thickeners and antisag additives for resins, paints and the like are prepared by free radical polymerization of at least one ethylenically unsaturated monomer in the presence of an oil-soluble dipersant. The carboxylic dispersants are preferred, especially esters of hydrocarbon-substituted succinic acids wherein the substituent contains at least about 30 carbon atoms and the reaction products of such acids or their derivatives with amines, usually polyalkylene polyamines.
    Type: Grant
    Filed: January 14, 1974
    Date of Patent: March 25, 1980
    Assignee: The Lubrizol Corporation
    Inventor: Lester E. Coleman
  • Lubricant compositions
    Patent number: 4193883
    Abstract: The invention provides a lubricant additive having improved antioxidant and antiwear properties made by (1) reacting an alkenylsuccinic anhydride (ASA) with an aminopolyhydroxy compound and (2) reacting the product thus obtained with a phosphorus trihalide and a polyhydroxyaromatic compound. The invention also provides a lubricant composition containing the additive.
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: March 18, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Gerassimos Frangatos