Patents Examined by Andrew Metz
  • Oxazoline containing dispersants stabilized against oxidation with sulfur and fuels and lubricants containing same
    Patent number: 4263153
    Abstract: A dispersant or dispersant mixture that is useful in fuel and lubricant compositions, and that is characterized by its derivation from a long chain dicarboxylic acid material and an amino alcohol, is stabilized against oxidation by sulfurization by reaction with sulfur or with a sulfur compound selected from the group consisting of carbon disulfide, sulfides of phosphorus including P.sub.2 S.sub.5 and P.sub.4 S.sub.3, and phosphosulfurized olefins. More particularly, the dispersant so treated will usually comprise a mono or bis-oxazoline prepared by reaction of a hydrocarbyl-substituted C.sub.4 -C.sub.10 dicarboxylic acid or anhydride or ester thereof, having at least 50 carbon atoms in the hydrocarbyl group, with a 2,2-disubstituted 2-amino-1-alkanol that has from two to three hydroxy groups and that contains from 4 to 8 total carbon atoms.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: April 21, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventors: Rosemary O'Halloran, Esther D. Winans
  • Process of preparing molybdenum complexes, the complexes so-produced and lubricants containing same
    Patent number: 4263152
    Abstract: Antioxidant additives for lubricating oil are prepared by combining water, an acidic molybdenum compound, a basic nitrogen compound complex and a sulfur source to form a sulfur- and molybdenum-containing composition.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: April 21, 1981
    Assignee: Chevron Research Company
    Inventors: John M. King, Louis deVries
  • Reaction product of acidic molybdenum compound with basic nitrogen compound and lubricants containing same
    Patent number: 4261843
    Abstract: Antioxidant additives for lubricating oil are prepared by combining an acidic molybdenum compound and certain basic nitrogen compounds to form a molybdenum-containing compositions.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: April 14, 1981
    Assignee: Chevron Research Company
    Inventors: John M. King, Louis deVries
  • Novel polyureas and their use as grease thickening agents
    Patent number: 4261845
    Abstract: Novel polyureas of the formula: ##STR1## wherein n is 9 to 18, m is 2 to 10, X and Y are each either ethyl, methyl or a hydrogen atom and R=aromatic, aliphatic or cycloaliphatic, are described herein. These polyureas are particularly useful as thickening agents for lubricating oils to make greases. The polyureas may be prepared by reacting the aminated products of propoxylated fatty alcohols with organic polyisocyanates. The reaction is a simple process requiring no heat. Very low levels of the resulting polyureas are required to thicken oils of lubricating viscosity into greases which have good high temperature stability.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: April 14, 1981
    Assignee: Texaco Development Corporation
    Inventor: Michael Cuscurida
  • Lubricant compositions containing antioxidant mixtures comprising substituted thiazoles and substituted thiadiazole compounds
    Patent number: 4260501
    Abstract: Lubricant compositions containing oleaginous materials and, in an amount sufficient to impart oxidation stability and corrosion resistance thereto, an adduct of a benzotriazole compound and an alkyl vinyl ether or a vinyl ester of a carboxylic acid in combination with an alkyl dimercapto thiadiazole.
    Type: Grant
    Filed: May 11, 1979
    Date of Patent: April 7, 1981
    Assignee: Mobil Oil Corporation
    Inventor: Joosup Shim
  • Synthetic drawing and ironing lubricant
    Patent number: 4260502
    Abstract: A synthetic metal working lubricant characterized by an absence of mineral oil but which is water immiscible and dispersible in water to form oil-in-water emulsions in which said lubricant is in the discontinuous phase is prepared using polybutenes, also referred to as polyisobutylenes, having an average molecular weight within the range of approximately 320-610 constituting a principal ingredient in combination with polyethylene glycol mono- and/or diesters of higher carboxylic acids or mixtures of such acids containing 8 to 22 carbon atoms in an acyclic or branched carbon chain and/or higher fatty acids containing 8-22 carbon atoms together with optional corrosion inhibiting agents which are effective in inhibiting corrosion of ferrous and non-ferrous metals to which the lubricant is applied for the purpose of working such metals.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: April 7, 1981
    Assignee: Nalco Chemical Company
    Inventor: Steven R. Slanker
  • Reaction product of acidic molybdenum compound with basic nitrogen compound and lubricants containing same
    Patent number: 4259195
    Abstract: Antioxidant additives for lubricating oil are prepared by combining a polar promoter, an acidic molybdenum compound and certain basic nitrogen compound to form a molybdenum-containing compositions.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: March 31, 1981
    Assignee: Chevron Research Company
    Inventors: John M. King, Louis deVries
  • Reaction product of ammonium tetrathiomolybdate with basic nitrogen compounds and lubricants containing same
    Patent number: 4259194
    Abstract: Antioxidant additives for lubricating oil are prepared by combining ammonium tetrathiomolybdate and a basic nitrogen compound complex to form a sulfur-and molybdenum-containing composition.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: March 31, 1981
    Assignee: Chevron Research Company
    Inventors: Louis deVries, John M. King
  • Hot melt metal working lubricants containing phosphorus-containing compositions
    Patent number: 4256594
    Abstract: Metal working operations, especially drawing, are facilitated by applying to the metal a composition which provides lubricity thereto, which melts between about 30.degree. and about 150.degree. C., and which contains a minor amount of a phosphorus-containing composition which may be prepared by the reaction of an alkoxylated alkyl phenol with a phosphorus trihalide, or, in combination with water, with a triaryl phosphite. The former reaction also produces, as a by-product, the corresponding halide. The phosphorus-containing compositions are especially useful in combination with a chlorinated wax. The preferred lubricant bases for the metal working lubricants comprise esters or polymers of epoxides or episulfides.
    Type: Grant
    Filed: September 21, 1979
    Date of Patent: March 17, 1981
    Assignee: The Lubrizol Corporation
    Inventor: Joseph J. Rysek
  • Diesel lubricant composition containing 5-amino-triazole-succinic anhydride reaction product
    Patent number: 4256595
    Abstract: A diesel crankcase lubricant composition comprising a lubricating oil base and the reaction product of a hydrocarbyl succinic anhydride in which the hydrocarbyl radical has from 12 to 30 carbon atoms and 5-amino-triazole is provided.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: March 17, 1981
    Assignee: Texaco Inc.
    Inventors: Rodney L. Sung, Benjamin H. Zoleski
  • Phosphorus-containing compounds and lubricants containing same
    Patent number: 4255271
    Abstract: Phosphosulfurized hydrocarbyl oxazoline reacted with nitrogen-containing compounds and certain olefins are novel compounds effective for reducing friction and wear when added to a lubricant.
    Type: Grant
    Filed: November 20, 1979
    Date of Patent: March 10, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Andrew G. Horodysky, Robert M. Gemmill, Jr.
  • Viscous lubricant composition comprising mixed esters and a silicone oil
    Patent number: 4253981
    Abstract: A viscous composition capable of substantially retaining its viscosity within a temperature range of from 5.degree.-30.degree. C. comprising as its components diisopropyl adipate, a mixture of cetyl and stearyl octanoates, glyceryl tribehenate, silicone oil and a surfactant is described.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: March 3, 1981
    Assignee: Morton-Norwich Products, Inc.
    Inventor: Peter J. Ayres
  • Hydraulic automatic transmission fluid with superior friction performance
    Patent number: 4253977
    Abstract: The friction performance of a lubricating oil composition that has been compounded to serve as a functional fluid that is particularly useful in mechanical and hydraulic units containing wet clutches, for example an automotive automatic transmission, is greatly improved by the incorporation of a combination of a friction modifier of the type comprising a straight chain alkenyl or alkyl C.sub.4 to C.sub.10 dicarboxylic acid or the reaction product of an aldehyde/tris hydroxymethyl aminomethane adduct and a long chain dicarboxylic acid anhydride such as an alpha-olefin succinic anhydride; with an overbased detergent salt such as an alkali metal salt or alkaline earth metal salt of a hydrocarbyl sulfonic acid, an alkyl phenol or a sulfurized alkyl phenol, in certain proportions.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: March 3, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventor: Rosemary O'Halloran
  • Phosphorus-containing compounds and lubricants containing same
    Patent number: 4253973
    Abstract: Metal salts of phosphosulfurized hydrocarbyl oxazoline phosphorodithioic acids are novel compounds effective for reducing friction and wear when added to a lubricant.
    Type: Grant
    Filed: November 20, 1979
    Date of Patent: March 3, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Andrew G. Horodysky, Robert M. Gemmill, Jr.
  • Lubricant compositions
    Patent number: 4253982
    Abstract: Lubricant compositions are provided containing antiwear improving amounts of a bis-oxazoline having an alkyl group containing from about 4 to about 24 carbon atoms.
    Type: Grant
    Filed: August 1, 1975
    Date of Patent: March 3, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Robert F. Bridger, Kirk D. Schmitt
  • Reaction products of organophosphorus halides with inorganic thiocyanates as load-carrying additives in lubricating oil compositions
    Patent number: 4252660
    Abstract: Reaction products of selected inorganic thiocyanates and alkyl or aryl phosphorus halides provide additive compounds which impart excellent antiwear and load-carrying protection to lubricant base stocks in which they are incorporated.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: February 24, 1981
    Assignee: Mobil Oil Corporation
    Inventor: Abraham O. M. Okorodudu
  • Quaternary ammonium diester salt composition and hydrocarbon oil containing same
    Patent number: 4251380
    Abstract: A quaternary ammonium salt of a diester represented by the formula: ##STR1## in which R.sup.i, R.sup.ii, R.sup.iii and R.sup.iv represent hydrogen, alkyl or alkenyl radicals at least one of which is a hydrocarbyl radical having from 50-200 carbon atoms, R is a divalent radical having from 2-10 carbon, or carbon and oxygen atoms, R.sup.v is hydrogen or a hydrocarbyl radical, z has a value from 0-4 and X is an anion is provided, as well as a method of preparation and a hydrocarbon lubricating oil composition containing same.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: February 17, 1981
    Assignee: Texaco Inc.
    Inventors: Kenneth G. Hammond, Harry Chafetz
  • Diethanol disulfide as an extreme pressure and anti-wear additive in water soluble metalworking fluids
    Patent number: 4250046
    Abstract: Metalworking fluids containing diethanol disulfide in effective amounts to provide extreme pressure and anti-wear properties are disclosed. A preferred metalworking fluid is an aqueous solution of diethanol disulfide and water-soluble polyoxyalkylene glycols. Concentrates and use solutions are disclosed.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: February 10, 1981
    Assignee: Pennwalt Corporation
    Inventor: John L. Przybylinski
  • Lubricant compositions for synthetic fibers and method for lubricating synthetic fibers
    Patent number: 4250047
    Abstract: Synthetic fibers are treated for the purpose of lubrication with a compound of the formula: ##STR1## wherein R.sub.1 is hydrogen or phenyl, R.sub.2 is an alkylene group having 1 to 3 carbon atoms, R.sub.3 is an alkylene group having 2 to 4 carbon atoms or a mixed alkylene group thereof, R.sub.4 is hydrogen, an acyl having 1 to 18 carbon atoms or alkyl group having 1 to 18 carbon atoms, p is a number of from 2 to 5 and n is a number of from 1 to 50.
    Type: Grant
    Filed: May 24, 1979
    Date of Patent: February 10, 1981
    Assignee: Kao Soap Co., Ltd.
    Inventors: Kenichi Katabe, Takeshi Hirota, Osamu Wakasugi
  • Polymerized fatty acid amine derivatives useful as friction and wear-reducing additives
    Patent number: 4250045
    Abstract: A hydrocarbon composition having a major portion of a hydrocarbon preferably a lubricating oil such as mineral oil and at least a friction-reducing amount usually 0.01 to 10 weight percent of an amine or amine derivative of a hydrocarbon-soluble polymerized fatty acid e.g. a dimeramine derived from a dicarboxylic acid containing at least 12 carbon atoms such as 9(10)-carboxy stearic acid has improved antifriction and fuel economy properties.
    Type: Grant
    Filed: June 22, 1979
    Date of Patent: February 10, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventors: Keith Coupland, Clinton R. Smith