Patents by Inventor Angeline B. Cardis

Angeline B. Cardis 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: 5186850
    Abstract: The incorporation of the heterocyclic dimercaptothiadiazole functionality into the alkenylsuccinimide dispersant structures via the Mannich alkylaminomethylkation procedure provides a class of ashless non-phosphorus dispersants with multifunctional antiwear, antioxidant and corrosion inhibitor properties in lubricant compositions.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: February 16, 1993
    Assignee: Mobil Oil Corporation
    Inventors: Abraham O. M. Okorodudu, Angeline B. Cardis, Ross A. Kremer
  • Patent number: 5183475
    Abstract: A fuel composition contains an antiwear additive comprising the reaction product of a fatty acid salt comprising oleic acid, stearic acid, tall oil acid and dimer acid having 10 to 40 carbon atoms and an aromatic triazole such as tolyltriazole and method of making the same.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: February 2, 1993
    Assignee: Mobil Oil Corporation
    Inventors: Angeline B. Cardis, Carl E. Shanholtz
  • Patent number: 5182036
    Abstract: Borated hydroxyalkyl esters of alkyl- or alkenylsuccinimide-derived dithiocarbamic acids, have been found to be effective multifunctional additives in lubricant and fuel applications.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: January 26, 1993
    Assignee: Mobil Oil Corp.
    Inventors: Abraham O. M. Okorodudu, Angeline B. Cardis
  • Patent number: 5169409
    Abstract: Reaction products which provide antioxidant properties to lubricants and fuels while serving as effective dispersants and detergents in these mediums. These products, of the reaction of a hydroxyalkylene substituted polyamines and substituted succinic anhydrides, contain mixtures of esters, amides and imides. Furthermore, preferred embodiments of the reaction products have pendent alcohol groups which provide extra dispersancy and detergency over traditional dispersants which typically do not have alcohol groups.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: December 8, 1992
    Assignee: Mobil Oil Corp.
    Inventors: David A. Blain, Angeline B. Cardis
  • Patent number: 5167671
    Abstract: The low-temperature properties of distillate fuels are improved when reaction products of pyromellitic dianhydride and amonoalcohols and/or amines with long chain hydrocarbyl groups are incorporated therein.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: December 1, 1992
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
  • Patent number: 5160349
    Abstract: A fuel composition contains an antiwear additive comprising the reaction product of heterocyclic compound having antiwear activity such as a triazole e.g. benzotriazole, tolyltriazole, and a copolymer with succinic anhydride moiety, such as an olefin/maleic anhydride copolymer.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: November 3, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Angeline B. Cardis, Carl E. Shanholtz
  • Patent number: 5160649
    Abstract: An ashless detergent additive having antioxidant and metal surface protection properties for lubricants or fuels is made from a Mannich condensation reaction between a hydrocarbylbissuccinimide, such as a dimer of a polyisobutenylsuccinimide (derived from tetraethylenepentamine), an aldehyde, such as formaldehyde, and a heteroatom substituted benzoic acid such as salicyclic acid, thiosalicyclic acid or aminosalicylic acid.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: November 3, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Angeline B. Cardis, Arjun K. Goyal, Carl E. Shanholtz, Virginia C. Wiszniewski
  • Patent number: 5156655
    Abstract: The reaction products of benzophenone tetracarboxylic dianhydride and aminoalcohols and/or amines with long chain hydrocarbyl groups attached improve the low-temperature properties of distillate fuels when added thereto in minor amounts.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: October 20, 1992
    Assignee: Mobil Oil Corp.
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
  • Patent number: 5129917
    Abstract: The reaction product of certain epoxy resins and secondary amines improve the low-temperature properties of distillate fuels.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: July 14, 1992
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Susan W. Johnson
  • Patent number: 5126063
    Abstract: Lubricating oil and grease compositions contain borated hydroxyalkyl esters of amine or metal salts of diorganodithiocarbamic acid, such as N,N'-di-(2-ethylhexyl) dithiocarbamic acid, and hydrocarbylene oxie, such as propylene oxide, as antioxidant, load-carrying and friction modifying additives.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: June 30, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Angeline B. Cardis, Liehpao O. Farng, Abraham O. M. Okorodudu, Andrew G. Horodysky
  • Patent number: 5120457
    Abstract: Products derived from the reaction of organic or metal salts of diorganodithiocarbamic acids with benzenesulfonyl halides, impart excellent multifunctional antiwear and antioxidant properties to lubricating oil compositions.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: June 9, 1992
    Assignee: Mobil Oil Corp.
    Inventors: Angeline B. Cardis, Abraham O. M. Okorodudu
  • Patent number: 5080690
    Abstract: Products of reaction between 1-alkyl-N,N-dialkyl ethanolamines and copolymers of maleic anhydride are new additives which are effective in lowering the cloud point of distillate fuels.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: January 14, 1992
    Assignee: Mobil Oil Corp.
    Inventors: David J. Baillargeon, Angeline B. Cardis, Susan W. Johnson, Carl E. Shanholtz
  • Patent number: 5069684
    Abstract: The present invention discloses superior fuel and lubricant additives prepared by the acylation of alkyl or alkenyl succinimides with the polyether half-esters of dicarboxylic acids. The polyether half-esters of dicarboxylic acids are grafted onto the polyamine moiety of alkyl or alkenyl succinimides by reacting the succinimide and the half-ester of the dicarboxylic acid under amidation conditions to form an amide group with an amino group of the polyamine. The process is carried out by first reacting a monofunctional polyalkylene ether with a dicarboxylic acid to produce a half-ester of the dicarboxylic acid. This product is then reacted with an alkyl or alkenyl succinimide polyamine ashless dispersant to product a multifunctional hydrocarbon fuel or lubricant additive that exhibits augmented dispersant properties.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: December 3, 1991
    Assignee: Mobil Oil Corporation
    Inventors: David A. Blain, Angeline B. Cardis
  • Patent number: 5068046
    Abstract: A lubricant or fuel composition contains a major portion of a lubricant or fuel and a minor portion of an additive composition which is the reaction product of long chain epoxides and polyamines such as polyethyleneamines.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: November 26, 1991
    Assignee: Mobil Oil Corporation
    Inventors: David A. Blain, Angeline B. Cardis
  • Patent number: 5057122
    Abstract: Reaction products in which polyethers are connected to hydroxyalkylated polyamines using diisocyanates have been found to be effective ashless dispersants and detergents for various lubricants and fuels.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: October 15, 1991
    Assignee: Mobil Oil Corp.
    Inventors: David A. Blain, Angeline B. Cardis
  • Patent number: 5053153
    Abstract: Reaction products in which polyethers are connected to polyamines using diisocyanates have been found to be effective ashless dispersants and detergents for various oils of lubricating viscosity.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: October 1, 1991
    Assignee: Mobil Oil Corp.
    Inventors: David A. Blain, Angeline B. Cardis, Jeffrey C. Trewella
  • Patent number: 5049293
    Abstract: Disclosed is an additive for lubricant or fuel composition comprising the boronated reaction product of polyalkenyl-substituted succinimides, aldehydes and triazoles.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: September 17, 1991
    Assignee: Mobil Oil Corporation
    Inventors: David A. Blain, Angeline B. Cardis, Ronald J. Poole
  • Patent number: 5043086
    Abstract: Reaction products in which polyethers are grown from substituted phenol-containing mannich bases have been found to be effective ashless dispersants and detergents for fuels and lubricants.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: August 27, 1991
    Assignee: Mobil Oil Corp.
    Inventors: David A. Blain, Angeline B. Cardis
  • Patent number: 5039310
    Abstract: Reaction products in which polyethers are grown from substituted phenol-containing mannich bases have been found to be effective ashless dispersants and detergents for fuels and lubricants.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: August 13, 1991
    Assignee: Mobil Oil Corporation
    Inventors: David A. Blain, Angeline B. Cardis
  • Patent number: 5039306
    Abstract: Additives which improve the low-temperature properties of distillate fuels are the reaction products of (1) diols, and (2) the product of pyromellitic dianhydride and aminoalcohols and/or amines with long-chain hydrocarbyl groups attached.
    Type: Grant
    Filed: December 13, 1989
    Date of Patent: August 13, 1991
    Assignee: Mobil Oil Corp.
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck