Patents Examined by Andrew Metz
  • Patent number: 4193882
    Abstract: Lubricant compositions containing, in an amount sufficient to inhibit metal corrosion, the reaction product of oleic acid and 2,5-dimercapto-1,3,4-thiadiazole.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: March 18, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Robert M. Gemmill, Jr.
  • Patent number: 4189389
    Abstract: New lubricant additive compositions containing at least one alkenyl succinimide of the formula: ##STR1## in which R is an alkenyl group of from about 20 to 200 carbon atoms and m is a whole number from 1 to 3.They are produced from the reaction of an alkenyl succinic anhydride comprising a C.sub.20 -C.sub.200 alkenyl group and tris(5-amino-3-thia-pentyl)amine. The additive compositions are useful in lubricating oils.
    Type: Grant
    Filed: January 9, 1979
    Date of Patent: February 19, 1980
    Assignee: Orogil
    Inventor: Gerard Soula
  • Patent number: 4189388
    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 polyhydroxy anthraquinone, a hydrocarbyl phosphate ester and a thioacid derivative compound as hereinafter described.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: February 19, 1980
    Assignee: Texaco Inc.
    Inventors: Roberta Yaffe, Russell R. Reinhard
  • Patent number: 4188298
    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 polyhydroxy anthraquinone, a hydrocarbyl phosphate ester and a dialkyl sulfide compound as hereinafter described.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: February 12, 1980
    Assignee: Texaco Inc.
    Inventors: Russell R. Reinhard, Roberta Yaffe
  • Patent number: 4183817
    Abstract: Adducts of alkylphosphorous triamides with alpha, beta-unsaturated carbonyl compounds provide novel sulfur-free load-carrying additives for various organiccompositions, e.g., lubricant oils.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: January 15, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Abraham O. Okorodudu
  • Patent number: 4181618
    Abstract: Graft copolymer formed by reacting at least one polymerizable vinyl compound, in monomeric or polymerized form, with a hydrogenated polymer or copolymer selected from the hydrogenated homopolymers of conjugated dienes of 4-6 carbon atoms, the hydrogenated copolymers of at least 2 conjugated dienes and the hydrogenated copolymers of styrene and conjugated dienes of 4-6 carbon atoms, said hydrogenated polymer or copolymer having an average molecular weight ranging from 10,000 to 300,000 and a residual olefinic unsaturation lower than 15%.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: January 1, 1980
    Assignees: Institut Francais du Petrole, Rhone-Poulenc Industries
    Inventors: Jean-Pierre Durand, Patrick Gateau, Francois Dawans, Bernard Chauvel
  • Patent number: 4179386
    Abstract: Synthetic lubricating oil composition having improved oxidation stability comprising a major portion of an aliphatic ester base fluid having lubricating properties, formed by the reaction of pentaerythritol and an organic monocarboxylic acid and containing a hydrocarbyl phosphate ester, a polyhydroxy anthraquinone, a dialkyl sulfide and either a phenylnaphthylamine or a dialkyldiphenylamine.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: December 18, 1979
    Assignee: Texaco Inc.
    Inventors: Russell R. Reinhard, Roberta Yaffe
  • Patent number: 4178253
    Abstract: A lubricating oil composition comprising 0.001% to 10%, based on the total lubricating composition, of a compound of formula I: ##STR1## wherein x is an integer from 1 to 25; R, R.sup.1 and R" are the same or different and each is hydrogen, an optionally substituted straight- or branched-chain alkyl residue having from 1 to 20 carbon atoms, an alkenyl or alkynyl residue having from 2 to 12 carbon atoms, an optionally substituted cycloalkyl residue having from 3 to 12 carbon atoms, an optionally substituted aryl residue having from 6 to 10 carbon atoms, an optionally substituted aralkenyl or aralkynyl residue each having from 8 to 12 carbon atoms, an optionally substituted aralkyl residue having from 7 to 20 carbon atoms or an optionally substituted heterocyclic residue having from 3 to 10 ring members, an alkylene residue having from 2 to 12 carbon atoms, a cycloalkylene residue having from 5 to 12 carbon atoms or an arylene residue having from 6 to 10 carbon atoms; or R is the group -(S).sub.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: December 11, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter I. Lee, Brian Holt
  • Patent number: 4178259
    Abstract: New Mannich bases and their alkaline earth metal salts are prepared by condensing formaldehyde and a polyamine with a sulfur-containing phenolic mixture consisting of (1) from 5 to 40% of a sulfurized alkylphenol; and (2) from 95 to 60% of phenol alkylated with polyisobutene of 16 to 128 carbon atoms or a mixture of said phenol alkylated with polyisobutene and phenol alkylated with a propylene tetramer. They are useful as additives for lubricating oils, particularly for use in marine cylinder lubricating oils.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: December 11, 1979
    Assignee: Chevron Research Company
    Inventor: John M. King
  • Patent number: 4178260
    Abstract: The invention relates to lubricants for use in metal shaping operations, especially hot and cold rolling of steel and aluminium, and casting of aluminium. Preferred lubricants comprise in a mixture (i) a tetraester of pentaerythritol and a C.sub.16 to C.sub.20 aliphatic monocarboxylic acid, (ii) orthophosphoric acid. The lubricants have markedly reduced coefficients of friction; improved roll-wear characteristics and good stability at temperatures of 250+.degree.C. Incorporation of mineral oil and an emulsifier enables the thus modified composition to be used for the preparation of aqueous emulsions or dispersions.
    Type: Grant
    Filed: July 12, 1977
    Date of Patent: December 11, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventors: Brian A. Cook, Thomas W. Brown
  • Patent number: 4177153
    Abstract: A lubricating oil additive composition which imparts improved oxidation properties to crankcase lubricants comprises an antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and a tertiary amine of the formula (R).sub.3 N wherein each R is independently C.sub.1 -C.sub.35 alkyl and at least one R contains at least 11 carbon atoms. Lubricating oil compositions containing this additive composition are also disclosed.
    Type: Grant
    Filed: March 31, 1978
    Date of Patent: December 4, 1979
    Assignee: Chevron Research Company
    Inventor: Warren Lowe
  • Patent number: 4176076
    Abstract: As novel compounds, monoalkanolamide borates having from 2 to 3 carbon atoms in the alkanol moiety and in which the moiety is substituted or unsubstituted, a method for making and using the same, and the use thereof as rust-inhibitors and as synergistic lubricative-enhancive addenda. The new compounds also have bactericidal and fungicidal properties.
    Type: Grant
    Filed: November 10, 1977
    Date of Patent: November 27, 1979
    Inventor: David A. Waldstein
  • Patent number: 4176077
    Abstract: Condensation products made by reacting an alphahaloalkyl hydroxy-aromatic compound also having at least one non-fused hydrocarbyl substituent with at least one olefinic nitrile, carboxylic acid or carboxylic acid derivative are useful as additives for fuels and lubricants. The number of carbon atoms in the aromatic hydrocarbyl compound's substituents are each about 25 while the haloalkyl group contains from one to about 36 carbons. The acid or nitrile reactant usually contains three to about forty carbons. Products made from halomethyl alkyl-substituted phenols and .alpha.,.beta.-olefinic diacid derivatives such as maleic anhydride are particularly useful. Similarly useful products can be made from these condensation products by further reacting their acid, acid derivative or nitrile groups with alcohols, polyols, monoamines, polyamines, metal salts or metals.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: November 27, 1979
    Assignee: The Lubrizol Corporation
    Inventor: David E. Ripple
  • Patent number: 4176072
    Abstract: Lubricating oil adapted for use in diesel engines containing a sulfurized fatty acid ester of a polyhydric alkanol, e.g. sorbitan mono-ester of sulfurized oleic acid.
    Type: Grant
    Filed: March 22, 1978
    Date of Patent: November 27, 1979
    Assignee: Ethyl Corporation
    Inventor: Philip F. Jackisch
  • Patent number: 4175044
    Abstract: New Mannich bases and the alkaline earth metal salts thereof are prepared by condensing formaldehyde and a polyamine with a sulfur-containing phenolic mixture consisting of (1) from 5 to 40% of a sulfurized alkylphenol of the formula ##STR1## wherein R is C.sub.8 -C.sub.36 alkyl, n is an integer from 1 to 8, and y is an integer from 1 to 9, and (2) from 95 to 60% of a phenolic mixture consisting of (a) from 95 to 30% phenol alkylated with a propylene tetramer and (b) from 5 to 70% phenol alkylated with a straight-chain alpha-olefin of from 16 to about 28 carbon atoms or alpha-olefin mixtures wherein the alpha-olefins are of from 16 to about 28 carbon atoms. They are useful as additives for lubricating oils, particularly for use in marine cylinder lubricating oils.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: November 20, 1979
    Assignee: Chevron Research Company
    Inventors: Donovan R. Wilgus, John M. King
  • Patent number: 4174284
    Abstract: Liquid hydrocarbon-containing organic compositions have considerably improved anti-oxidation properties when a hydrocarbylpolythiobenzoic acid is present in the composition.
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: November 13, 1979
    Assignee: Phillips Petroleum Company
    Inventors: Albert W. Borel, Bernard A. Baldwin
  • Patent number: 4173540
    Abstract: The combination of an oil-soluble polyol ester reaction product having a number average molecular weight (M.sub.n) of from about 1,300 to 8,000, e.g., the reaction product of polybutenyl succinic anhydride with pentaerythritol which reaction product can be borated, if desired, and an oil-soluble acylated nitrogen compound having a (M.sub.n) of from about 1,300 to 8,000, e.g. polybutenyl succinic anhydride reacted with an alkylene polyamine such as tetraethylene pentamine, which nitrogen compound can be borated, if desired, are surprisingly useful as combined additives for lubricating oils to increase the dispersancy and varnish inhibition properties of said oil when one part per weight of said polyol ester reaction product is combined with from 0.2 to 4, preferably 1 to 3, parts by weight of said acylated nitrogen compound.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: November 6, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventors: Thor F. Lonstrup, Darrell W. Brownawell, Barry J. Howlett
  • Patent number: 4172802
    Abstract: Aqueous metal working fluids exhibiting high lubricity and high stability are provided. These fluids comprise water and an acid terminated diester of a secondary diol or the amine or alkali metal salts of the ester.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: October 30, 1979
    Assignee: Cincinnati Milacron Inc.
    Inventor: Walter E. Rieder
  • Patent number: 4170561
    Abstract: There are disclosed novel lubricating compositions containing a major proportion of a lubricating oil and a minor proportion of an oil soluble polymer additive, and possibly other additives, wherein said polymer additive is a copolymer of ethylene, a monoolefin having 3 to 6 carbon atoms or a monoolefin having 3 to 6 carbon atoms and a non-conjugated diene with one or more specific nitrogenous monomers, said polymer having a reduced viscosity, measured in decalin at 135.degree. C., comprised between 0.5 and 2 and a polydispersity lower than 5.Such a polymer additive improves the oil viscosity index while ensuring the dispersion of the slurry it may contain.
    Type: Grant
    Filed: March 15, 1978
    Date of Patent: October 9, 1979
    Assignee: Entreprise de Recherches et d'Activities Petrolieres (E.R.A.P.)
    Inventors: Gilbert Chapelet, Hubert Knoche, Gilbert Marie
  • Patent number: 4170560
    Abstract: A lubricating oil additive composition which imparts improved oxidation properties to crankcase lubricants comprises an antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and a hydroxy amine of the formula: ##STR1## WHEREIN A and A' are C.sub.2 -C.sub.10 alkylene, R is C.sub.1 -C.sub.30 alkyl, Y is H, C.sub.1 -C.sub.6 alkyl of --A--OH, y is 0, 1 or 2, and x is 1 or 2.Lubricating oil compositions containing this additive composition are also disclosed.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: October 9, 1979
    Assignee: Chevron Research Company
    Inventor: Warren Lowe