Patents by Inventor Sheldon Chibnik

Sheldon Chibnik has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5032145
    Abstract: Cloud point, pour point and filterability of diesel and heating fuels are improved by the incorporation of minor amounts of an additive prepared from the reaction products of a long chain oligomeric alkylsuccinic anhydride, a higher alkyl linear saturated alcohol and a tertiary amino substituted polyol.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: July 16, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Joan C. Axelrod, Sheldon Chibnik, David J. Baillargeon
  • Patent number: 4892563
    Abstract: A product of reaction suitable for use as a lubricant additive made by reacting a preformed Mannich base with a reactive hydrocarbyl amine, thiol or dithiophosphoric acid having at least one reactive hydrogen.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: January 9, 1990
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4859355
    Abstract: A product of reaction suitable for use as a lubricant additive made by reacting a preformed Mannich base with a reactive hydrocarbyl amine, thiol or dithiophosphoric acid having at least one reactive hydrogen.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: August 22, 1989
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4834776
    Abstract: The incorporation of minor amounts of an additive prepared from the reaction products of a long chain oligomeric alkylsuccinic anhydride or the corresponding acid, a mono or polyfunctional epoxide and a long chain secondary amine provide improved cloud point, pour point and filterability for diesel and heating fuels.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: May 30, 1989
    Assignee: Mobil Oil Corporation
    Inventors: Joan C. Axelrod, Sheldon Chibnik
  • Patent number: 4806130
    Abstract: A product of reaction suitable for use as a lubricant additive made by reacting a preformed Mannich base with a reactive hydrocarbyl amine, thiol or dithiophosphoric acid having at least one reactive hydrogen.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: February 21, 1989
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4717492
    Abstract: A product of reaction suitable for use as a lubricant additive made by reacting a preformed Mannich base with a reactive hydrocarbyl amine, thiol or dithiophosphoric acid having at least one reactive hydrogen.
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: January 5, 1988
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4675027
    Abstract: Heavy metal salts of certain branched chain carboxylic acids significantly improve the filterability, pour point and cloud point of liquid hydrocarbyl fuels when incorporated therein.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: June 23, 1987
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4657562
    Abstract: The product of reaction between a branched chain monocarboxylic acid amide, an epoxide and a carboxylic acid when added to a hydrocarbyl distillate fuel in minor effective amounts provides a fuel composition having improved cold flowability.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: April 14, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Joan C. Axelrod, Sheldon Chibnik
  • Patent number: 4639256
    Abstract: A reaction product or additive compound comprising an ester derivative of a branched chain monocarboxylic acid, wherein said ester derivative has at least one tertiary amine group and at least one ester group. The additive compound when added to a hydrocarbyl distillate fuel in a cold flow improving effective amount produces a fuel composition having improved cold flowability.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: January 27, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Joan C. Axelrod, Sheldon Chibnik
  • Patent number: 4631071
    Abstract: The product of reaction between an ester derivative of a branched chain monocarboxylic acid, having at least one tertiary amine group, an epoxide and an additional carboxylic acid when added to a hydrocarbyl distillate fuel in minor effective amounts provides a fuel composition having improved cold flowability.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: December 23, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Joan C. Axelrod, Sheldon Chibnik
  • Patent number: 4621141
    Abstract: A telomeric acid, a tertiary amine, and an epoxide are reacted in the absence of added water. The product recovered is effective in improving the filterability and reducing the pour point of diesel fuel. Alternatively the product can be prepared by reacting a quaternary ammonium hydroxide and a telomeric acid.
    Type: Grant
    Filed: April 26, 1984
    Date of Patent: November 4, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4524007
    Abstract: Compounds comprising ether capped alcohols, particularly alkoxy polyalkylene glycols with organic acids are highly effective demulsifier additives when incorporated into various liquid hydrocarbyl lubricant media.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: June 18, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4498908
    Abstract: 3-alkoxy-1 diamines are reacted with a carboxylic acid. The reaction product is further reacted with an inorganic base such as calcium oxide. The product obtained is an additive useful in gasoline to inhibit intake valve deposits and as a dispersant in lubricating compounds.
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: February 12, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4495076
    Abstract: 3-Alkoxy-1 diamines are reacted with a carboxylic acid. The reaction product is further reacted with an inorganic base such as calcium oxide. The product obtained is an additive useful in gasoline to inhibit intake valve deposits and as a dispersant in lubricating compounds.
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: January 22, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4397750
    Abstract: Esters of hydroxyalkylpyrrolidinones and alkenylsuccinic anhydrides are effective detergent additives for hydrocarbyl lubricants and fuels.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: August 9, 1983
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • 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
  • Patent number: 4240970
    Abstract: Novel products suitable for use as detergents in lubricant compositions are provided. Such products include the reaction products of (1) the product of reaction between an alkenylsuccinic acid, ester or anhydride and a hydroxyaromatic compound, (2) the product of reaction between (1) and an amine selected from the group consisting of an alkanepolyol such as an amino alkanediol and a polyalkylenepolyamine; (3) the reaction product of (2) and an aldehyde; (4) the reaction product of (3) with a metal salt capable of forming a stable complex with amines; (5) the reaction product of (2) with a metal salt; and (6) the product of reaction between an alkenylsuccinic acid or anhydride and an alkyl phenyl ether.
    Type: Grant
    Filed: December 18, 1979
    Date of Patent: December 23, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4219431
    Abstract: Lubricant compositions containing a lubricant and a minor amount of a derivative of alkenylsuccinic anhydride are provided. Such derivatives include the reaction product of (1) the product of reaction between an alkenylsuccinic acid, ester or anhydride and a hydroxyaromatic compound; (2) the product of reaction between (1) and an amine selected from the group consisting of an alkanepolyol such as an amino alkanediol and a polyalkylene polyamine; (3) the reaction product of (2) and an aldehyde; (4) the reaction product of (3) with a metal salt capable of forming a stable complex with amines; (5) the reaction product of (2) with a metal salt; and (6) the product of reaction between an alkenylsuccinic acid or anhydride and an alkyl phenyl ether.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: August 26, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • 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
  • Patent number: 4202783
    Abstract: Benzotriazole when reacted with unsaturated esters such as acrylate ester provides products which when added to lubricating oils improve the resistance of said oils to oxidation.
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: May 13, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik