Patents by Inventor Benjamin J. Kaufman

Benjamin J. Kaufman 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: 4732942
    Abstract: Lubricating oil compositions of improved dispersancy contain an ethylene-propylene copolymer grafted onto which is acrylic acid dimer, the free carboxyl group of which has thereafter been amidized with diethylene triamine.
    Type: Grant
    Filed: September 2, 1986
    Date of Patent: March 22, 1988
    Assignee: Texaco Inc.
    Inventors: Christopher S. Liu, Benjamin J. Kaufman, Maria M. Kapucinski
  • Patent number: 4715975
    Abstract: A VII olefin copolymer, prepared by grafting allyl amine onto EPM or EPT, permits attainment of improved dispersancy and viscosity index in oils.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: December 29, 1987
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapusciniski, Benjamin J. Kaufman, Christopher S. Liu
  • Patent number: 4624682
    Abstract: A keto-acid amide derived from the amination of a bicyclic keto-acid with an N-alkyl-alkylene diamine. The keto-acid amides are useful as carburetor detergents for motor fuel compositions.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: November 25, 1986
    Assignee: Texaco Inc.
    Inventors: Rodney L. Sung, Benjamin J. Kaufman
  • Patent number: 4579675
    Abstract: Described are novel enaminones of the formula: ##STR1## wherein R is a lower alkyl or oxyalkyl group having 1 to 5 carbon atoms, R.sub.1 is an alkyl group having from 1 to 200 carbon atoms or a similar alkyl group substituted by nitrogen, oxygen or other inert substituents; R.sub.2 is hydrogen or an alkyl group having from 1 to 20 carbon atoms; R.sub.3 is an alkyl or substituted alkyl group having from 1 to 20 carbon atoms. These products are prepared by the reaction of a 1,3-dicarbonyl compound and a primary or secondary amine analog.In neat or mixed form, the present compounds are useful as dispersants-detergents in oleaginous compositions.
    Type: Grant
    Filed: November 9, 1983
    Date of Patent: April 1, 1986
    Assignee: Texaco Inc.
    Inventors: Robert A. Sawicki, Benjamin J. Kaufman, Phillip B. Valkovich, Joseph B. Biasotti
  • Patent number: 4548724
    Abstract: Dispersant additives in lubricating oils are formed by reaction of polyacids such as 1,3,6-hexane tricarboxylic acid and polyisobutenyl succinimide of a polyamine.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: October 22, 1985
    Assignee: Texaco Inc.
    Inventors: Thomas J. Karol, Rodney L. Sung, Benjamin J. Kaufman
  • Patent number: 4530802
    Abstract: A novel fuel composition contains ethanol or gasohol plus, as a wear-inhibiting additive, a quaternary ammonium reaction product of dilauryl phosphate and a t-alkyl monoamide of iminodiacetic acid.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: July 23, 1985
    Assignee: Texaco Inc.
    Inventors: Rodney L. Sung, William M. Sweeney, Benjamin J. Kaufman
  • Patent number: 4518782
    Abstract: Disclosed are fuel compositions including alcohol-extended fuels containing friction-reducing, anti-corrosion and detergent amounts of at least one fuel soluble glycine derivative of the formula:RNHCH.sub.2 Xwherein R is a hydrocarbyl group having 6 to 18 carbons and X is ##STR1## wherein R.sub.1 is lower alkyl having 1 to 5 carbon atoms; R.sub.2 is alkylene having 1 to 5 carbon atoms; R.sub.3 is an alkylamino or alkylpolyamino group having 1 to 5 carbon atoms.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: May 21, 1985
    Assignee: Texaco Inc.
    Inventors: Rodney L. Sung, Benjamin J. Kaufman, Peter Dorn
  • Patent number: 4508541
    Abstract: A material having a use as a detergent in a motor fuel composition is the reaction product of an aldehyde, a phenoxy acid, and a mono- or diamine, wherein the aldehyde includes a hydrocarbon radical having from 1 to about 10 carbon atoms and the phenoxy acid has the following formula: ##STR1## wherein R is any hydrocarbon radical or oxygen-containing hydrocarbon radical of from 1 to about 36 carbon atoms with the carbon atom adjacent to the carboxylic acid functional group having at least one active hydrogen atom, and x varies from about 1 to 3. The monoamine useful in forming the reaction product has the formula: ##STR2## wherein X, X.sup.1 and X.sup.2 can be any hydrocarbon radical having from about 6 to about 36 carbon atoms, and wherein X.sup.1 and X.sup.2 can be a hydrogen atom. The diamine has the formula: ##STR3## wherein z varies from about 1 to 3, R.sup.1 is any hydrocarbon radical or oxygen substituted hydrocarbon radical having from about 6 to 36 carbon atoms and R.sup.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: April 2, 1985
    Assignee: Texaco Inc.
    Inventors: Benjamin J. Kaufman, Rodney L. Sung
  • Patent number: 4500440
    Abstract: Improvements in dispersant viscosity index improvers having antioxidant properties and their use in lubricating oils are disclosed. An ethylene-propylene copolymer rubber has grafted thereon a vinyl monomer having an epoxy group to form a precursor which is condensed with a 5-aminotetrazole by ring opening of the pendent epoxide group.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: February 19, 1985
    Assignee: Texaco Inc.
    Inventors: Benjamin J. Kaufman, Christopher S. Liu, Rodney L. Sung
  • Patent number: 4496368
    Abstract: Novel condensation products of N-alkyl-alkylenediamines and isopropylidene malonate are prepared by refluxing the reactants in solvents inert to the reactants, removing this solvent and extracting the reaction system with an inert solvent such as xylene.
    Type: Grant
    Filed: June 17, 1983
    Date of Patent: January 29, 1985
    Assignee: Texaco Inc.
    Inventors: Benjamin J. Kaufman, Rodney L. Sung
  • Patent number: 4490155
    Abstract: The Mannich reaction products of certain diaminopropanes with formaldehyde and salicylic acids are potent carburetor detergents and corrosion inhibitors in hydrocarbon fuels, particularly in gasoline.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: December 25, 1984
    Assignee: Texaco Inc.
    Inventor: Benjamin J. Kaufman
  • Patent number: 4459132
    Abstract: A novel fuel composition contains gasohol plus, as a wear-inhibiting additive, a reaction product of an acrylic acid or methacrylic acid and an amine such as mono-oleyl amine.
    Type: Grant
    Filed: August 19, 1983
    Date of Patent: July 10, 1984
    Assignee: Texaco Inc.
    Inventors: Benjamin J. Kaufman, Mark D. Levin
  • Patent number: 4446053
    Abstract: Disclosed are beta-amino acid derivatives which impart friction reducing properties to lubricating compositions. The additives of the invention are bifunctional carboxylic acid salts and amides derived from the basic hydrolysis of a cyanoethylated amine.
    Type: Grant
    Filed: November 4, 1982
    Date of Patent: May 1, 1984
    Assignee: Texaco Inc.
    Inventors: Anthony P. Skrobul, Benjamin J. Kaufman
  • Patent number: 4435186
    Abstract: A novel fuel composition contains ethanol or gasohol plus, as a wear-inhibiting additive, a quaternary ammonium reaction product of an amine ##STR1## typically bis(2-hydroxyethyl)cocoamine and a phosphate, or phosphonic acid, typically dilauryl phosphate.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: March 6, 1984
    Assignee: Texaco Inc.
    Inventors: Rodney L. Sung, Benjamin J. Kaufman, William M. Sweeney
  • Patent number: 4419255
    Abstract: Lubricating oil characterized by improved friction reduction contains friction reducing amounts of a keto amide prepared by the reaction of an amine and an unsaturated cyclic keto acid bearing pendant alkyl groups.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: December 6, 1983
    Assignee: Texaco Inc.
    Inventors: Benjamin J. Kaufman, Robert A. Sawicki, Stephen A. Levine
  • Patent number: 4416667
    Abstract: A novel fuel composition contains ethanol or gasohol plus, as a wear-inhibiting additive, a quaternary ammonium reaction product of an ether amine (R-O-R").sub.a -NH.sub.3-a, typically C.sub.13 H.sub.27 -O-(CH.sub.2).sub.3 -NH.sub.2 and a phosphate or phosphonate, typically tetradecyl phosphonate.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: November 22, 1983
    Assignee: Texaco Inc.
    Inventors: Benjamin J. Kaufman, Rodney L. Sung, William M. Sweeney
  • Patent number: 4415740
    Abstract: A method for preparing a lactone reaction product comprising reacting an alkenyl-succinic acid under substantially anhydrous conditions at elevated temperature ranging up to about 100.degree. in the presence of an .alpha. carbon halogen substituted acetic acid. The .alpha. carbon halogen substituted acetic acid may have from one to three halogen substituents and has a pKa of less than 3.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: November 15, 1983
    Assignee: Texaco Inc.
    Inventor: Benjamin J. Kaufman
  • Patent number: 4412845
    Abstract: A novel fuel composition contains ethanol or gasohol plus, as a wear-inhibiting additive, a reaction product of one mole of itaconic acid and two moles of N-mono-oleyl-1,3-diaminopropane.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: November 1, 1983
    Assignee: Texaco Inc.
    Inventors: Benjamin J. Kaufman, William M. Sweeney
  • Patent number: 4404001
    Abstract: As a detergent and corrosion inhibiting fuel additive, the product resulting from reaction of trimellitic anhydride and a N- C.sub.10 -C.sub.25 -hydrocarbyl-1,3-diaminopropane and a fuel composition containing same.
    Type: Grant
    Filed: September 2, 1982
    Date of Patent: September 13, 1983
    Assignee: Texaco Inc.
    Inventors: Benjamin J. Kaufman, Sheldon Herbstman, Mark Levin
  • Patent number: 4396399
    Abstract: As a detergent and corrosion inhibiting fuel additive, the product resulting from the condensation reaction of a C.sub.9 to C.sub.30 alkenylsuccinic anhydride in the presence of a base to form an intermediate spirodilactone followed by the reaction of the intermediate spirodilactone with diethylenetriamine and a fuel composition containing same.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: August 2, 1983
    Assignee: Texaco Inc.
    Inventors: Benjamin J. Kaufman, Harry Chafetz