Patents Examined by Andrew Metz
  • Synthetic aircraft turbine oil
    Patent number: 4226732
    Abstract: Synthetic lubricating oil composition having improved oxidation stability comprising a major portion of an aliphatic ester base oil having lubricating properties, formed by the reaction of pentaerythritol and an organic monocarboxylic acid and containing a phenylnaphthylamine, a dialkyldiphenylamine, a hydrocarbyl phosphate ester, a polyhydroxy anthraquninone, an alkylamine salt of 3-amino-triazole-dodecenylsuccinamic acid, 2-hydroxylpropyl-N,N-dibutyldithiocarbamate, and an alkyl amine salt of a methyl acid phosphate.
    Type: Grant
    Filed: June 30, 1978
    Date of Patent: October 7, 1980
    Assignee: Texaco Inc.
    Inventors: Russell R. Reinhard, Roberta Yaffe
  • Lubricant compositions stabilized against ultra-violet degradation
    Patent number: 4226733
    Abstract: Lubricant compositions are provided which contain an effective amount of a nickel complex, e.g., a nickel phenol-phenolate derivative of a phenol sulfide for stabilizing said compositions against ultra-violet degradation.
    Type: Grant
    Filed: November 17, 1978
    Date of Patent: October 7, 1980
    Assignee: Mobil Oil Corporation
    Inventors: Eldon L. Armstrong, Samuel J. Leonardi
  • Lubricating oil and fuel compositions
    Patent number: 4225449
    Abstract: Engine friction of internal combustion engines is reduced by adding to the lubricating oil or fuel used in such engine a small friction-reducing amount of an aliphatic hydrocarbylsulfonylalkanol or aliphatic hydrocarbylsulfinylalkanol resulting in improved fuel economy.
    Type: Grant
    Filed: April 19, 1979
    Date of Patent: September 30, 1980
    Assignee: Edwin Cooper, Inc.
    Inventors: Andrew G. Papay, Joseph P. O'Brien
  • Lubricant compositions containing dithiocarbamyl antioxidants
    Patent number: 4225450
    Abstract: Esters of phenol-dithiocarbamic acids when added even in very small amounts to lubricants are effective as stabilizers against oxidation and corrosion, and also as extreme-pressure additives and anti-wear additives.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: September 30, 1980
    Assignee: Ciba-Geigy Corporation
    Inventor: Siegfried Rosenberger
  • Novel lubricant additives containing phosphorus and nitrogen and lubricant compositions containing them
    Patent number: 4224171
    Abstract: Novel lubricant additives containing phosphorus and nitrogen and novel lubricant compositions containing between about 0.2 and 10 percent by weight of said additives are provided. The novel lubricant compositions possess improved wear-resistance and improved properties under extreme pressure.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: September 23, 1980
    Assignee: Orogil
    Inventors: Georges Rivier, Gerard Forat
  • Oil-soluble adducts of benzotriazole and oxazolines and lubricant compositions containing same
    Patent number: 4224172
    Abstract: Certain new adducts of benzotriazole and oxazolines are provided in which the oxazolines may contain alkyl, alkenyl or cycloalkyl radicals of from 6 to about 20 carbon atoms. Lubricant compositions are also provided having excellent anticorrosion characteristics when minor amounts of such adducts are added thereto.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: September 23, 1980
    Assignee: Mobil Oil Corporation
    Inventors: Kirk D. Schmitt, Robert F. Bridger
  • Polymers bearing groups derived from N-substituted lactams and their use as lubricating oil additives
    Patent number: 4222882
    Abstract: Novel lubricating oil polymer additives are obtained by the following:(1) by preparing, by anionic polymerization, a living diene polymer of Mn of between about 20,000 and 300,000;(2) by functionalizing the said polymer by means of an N-substituted lactam of the type of N-alkylcaprolactam, N-binylcaprolactam, and particularly of the type of N-alkylpyrrolidione and N-vinylpyrrolidone; and(3) by hydrogenating the said functionalized polymer.A variant method of preparing the said polymers comprises subjecting the living polymer to a metalation operation before functionalization; the hydrogenation operation is carried out before metalation or after functionalization.The said polymers may be used as additives which improve the viscosity index and the dispersing power of lubricating oils. The amount of additive added is between about 0.1 and 10 percent by weight.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: September 16, 1980
    Assignees: Rhone-Poulenc Industries, l'Institut Francais du Petrole
    Inventors: Daniel Brulet, Robert Pocheville, Bernard Chauvel
  • Mannich base composition
    Patent number: 4219430
    Abstract: Reacting certain Mannich bases with a methylating agent yields a product having improved zinc dehydrocarbyl dithiophosphate compatability and reduced corrosivity to lead bearings.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: August 26, 1980
    Assignee: Chevron Research Company
    Inventor: Ronald J. Vaughan
  • Stabilized amide-imide graft of ethylene copolymeric additives for lubricants
    Patent number: 4219432
    Abstract: Oil-soluble, derivatized ethylene copolymers derived from about 2 to 98 wt. % ethylene, and one or more C.sub.3 to C.sub.28 alpha-olefins, e.g. propylene, which are grafted, preferably solution-grafted under an inert atmosphere and at elevated temperatures and in the presence of a high-temperature decomposable free-radical initiator, with an ethylenically-unsaturated dicarboxylic acid material and thereafter firstly reacted with from 0.1 to 0.9 molar equivalents of a t-amino-amine compound containing only one primary amino group to form imido groups and then secondly reacted with from 0.1 to 0.9 molar equivalents of a .alpha.,.omega. primary diamine having at least two primary amine groups, e.g. a poly(alkylene amine) such as diethylene triamine, to form carboxyl-grafted polymeric imide, usually succinimide, intermediate and thirdly reacted with an anhydride of a C.sub.1 -C.sub.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: August 26, 1980
    Assignee: Exxon Research & Engineering Co.
    Inventors: Salvatore J. Girgenti, John B. Gardiner
  • Antioxidant compositions
    Patent number: 4217232
    Abstract: Compositions having highly effective antioxidant characteristics are provided comprising organic media, normally susceptible to oxidation, such as oils of lubricating viscosity, containing a minor amount sufficient to impart antioxidant properties thereto of the reaction product of a polysulfide and a hydrocarbylmagnesium halide or a Grignard reagent.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: August 12, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Milton Braid
  • Pentaerythritol-fatty acid ester lubricant composition
    Patent number: 4216100
    Abstract: Lubricating oil composition comprising a major portion of an aliphatic ester base oil having lubricating properties formed from the reaction of pentaerythritol and an organic monocarboxylic acid containing (a) from about 0.005 to 0.20 percent of a 2,5-bis(alkylthio)-1,3,4-thiadiazole; (b) from about 0.3 to 5 percent of an alkyl or alkaryl phenylnaphthylamine; (c) from about 0.3 to 5 percent of a dialkyldiphenylamine; (d) from about 0.25 to 10 percent of a hydrocarbyl phosphate ester, and (e) from about 0.04 to 2 weight percent of a polyhydroxy-substituted anthraquinone.
    Type: Grant
    Filed: August 3, 1978
    Date of Patent: August 5, 1980
    Assignee: Texaco Inc.
    Inventor: Roberta Yaffe
  • Minimal blocking thermoplastic material and lubricating oil composition containing the same
    Patent number: 4213869
    Abstract: A normally solid thermoplastic material having a low softening point containing at least one metal salt of a metal selected from the group consisting of a metal of Group I, II, III or IV of the Periodic Table and a fatty acid having about 8 to about 30 carbon atoms per molecule and a silicone compound incorporated into or onto the thermoplastic material, the metal salt and the silicone compound being present in amounts sufficient to significantly reduce blocking between contact surfaces of the thermoplastic material and a lubricating composition containing the thermoplastic material.
    Type: Grant
    Filed: April 12, 1979
    Date of Patent: July 22, 1980
    Assignee: Phillips Petroleum Company
    Inventor: Edward J. Kosinsky
  • Cleaning and lubricating compositions and method of using the same
    Patent number: 4213870
    Abstract: Compositions including fluorinated alkyl esters are provided. Such compositions are useful for cleaning and lowering the coefficient of friction of the surfaces of various articles. In certain preferred embodiments tetrafluorethylene telomers and/or antistatic materials are included in the compositions.
    Type: Grant
    Filed: July 29, 1977
    Date of Patent: July 22, 1980
    Inventor: Thomas J. Loran
  • Improved process for the production of an additive for lubricating oils and related product
    Patent number: 4212752
    Abstract: A detergent additive for lubricating oils is prepared by reacting an alkyenolsulfide with an oxide or hydroxide of a earth-alkali metal and carbonating the reaction product with carbon dioxide, the reaction being carried out in the presence of a promoter, selected in the class of the organic nitrogen compounds, and possibly of a co-promoter; the temperature and the time of the reaction are depending on whether the co-promoter is present. The resulting product shows improved detergency and flow-ability properties.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: July 15, 1980
    Assignees: Liquichimica Robassomero S.p.A., Vsesoiuznis Nauchij Issledovatelskj Institut Po Pererabotke Nefti Vniinp
    Inventors: Andrea Peditto, Franco Fossati, Vincenzo Petrillo, Paolo Peri, Ielena A. Ivanova, Aleksandr I. Levin, Aleksandr A. Fufaiev, Vicktor M. Shkolnikov
  • Chelate detergent and antiwear additive for lubricants derived from hydroxyalkylated benzotriazoles
    Patent number: 4212754
    Abstract: There are provided complexes of metal salts prepared by (1) reacting a benzotriazole with a monoepoxide to form a hydroxyalkylbenzotriazole, (2) reacting the hydroxyalkylbenzotriazole with an alkenylsuccinic anhydride to form a monoester, and (3) converting the monoester to the salt of a metal which can form Werner complexes and complexing with a ligand containing amine, hydroxyl, oxazoline, or imidazoline groups to form a chelate. These chelates impart detergent and antiwear properties to lubricants.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: July 15, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Reaction products of sulfurized olefin adducts of phosphorodithioic acids and organic compositions containing same
    Patent number: 4212753
    Abstract: A novel product formed by reacting a reactive olefin, an epoxide or another reactive compound with the product of reaction between a dialkyl or diaryl phosphorodithioic acid and a sulfurized olefin possesses, among other things, good antiwear and antioxidant activity. Organic compositions containing a minor amount thereof possess good lubricating characteristics.
    Type: Grant
    Filed: March 1, 1979
    Date of Patent: July 15, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Andrew G. Horodysky
  • Synergistic lubricating compositions
    Patent number: 4211662
    Abstract: Lubricating compositions including all types of greases and oils such as cutting oils and rolling oils having enhanced extreme pressure wear properties are provided by including in them as an extreme pressure additive a synergistic mixture of one or more polymers of 1,2,4-and 1,3,4-thiadiazoledithiols and molybdenum disulfide.
    Type: Grant
    Filed: June 6, 1978
    Date of Patent: July 8, 1980
    Assignee: Pennwalt Corporation
    Inventor: James P. King
  • Multicomponent stabilized hydraulic fluid
    Patent number: 4210542
    Abstract: Mineral oil or synthetic hydrocarbon base hydraulic fluids containing a zinc bis(dialkyldithiophosphate) as an antiwear agent are stabilized against degradation at elevated operating temperatures by the incorporation in the hydraulic fluid of an appropriate Group I or Group II metal phosphonate and a fatty acid imidazoline. For example, a hydraulic fluid containing a zinc bis(dialkyldithiophosphate) is stabilized by the presence of a minor amount of a sodium phosphonate and a tallow fatty acid imidazoline.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: July 1, 1980
    Assignee: Gulf Research and Development Company
    Inventor: James T. Mann
  • Stabilized hydraulic fluid composition
    Patent number: 4210541
    Abstract: Mineral oil or synthetic hydrocarbon base hydraulic fluids containing a zinc bis(dialkyldithiophosphate) as an antiwear agent are stabilized against degradation at elevated operating temperatures by the incorporation in the hydraulic fluid of an appropriate Group I or Group II metal dialkylnaphthalene sulfonate and a fatty acid imidazoline. For example, a hydraulic fluid containing a zinc bis(dialkyldithiophosphate) is stabilized by the presence of a minor amount of zinc dinonylnaphthalene sulfonate and a tallow fatty acid imidazoline.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: July 1, 1980
    Assignee: Gulf Research and Development Company
    Inventor: James T. Mann
  • Oxidation resistant lubricant composition
    Patent number: 4210545
    Abstract: Lubricant additives imparting oxidation inhibiting properties to lubricant compositions, are synthesized by reacting thioxamide, saturated aliphatic aldehyde of from 1 to about 20 carbon atoms, and an olefin of at least 8 carbon atoms, in the presence of a boron trifluoride catalyst.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: July 1, 1980
    Assignee: Standard Oil Company (Indiana)
    Inventors: Richard J. Lee, Eugene E. Richardson