Patents by Inventor Nicholas Feldman

Nicholas Feldman 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: 5102427
    Abstract: The present invention provides for a middle distillate fuel having a boiling range within about 120.degree. to about 400.degree. C. which has enhanced low temperature flow properties. These enhanced properties are provided by the addition of a mixture comprising:a) the sulfonamide or amine salt reaction product of an alkylaryl sulfonic acid having from about 10 to about 70 carbon atoms and a primary, secondary tertiary or quaternary amine having from 4 to about 40 carbon atoms;b) an alkyl diphenyl ether wherein the alkyl group contains from about 16 to about 44 carbon atoms; andc) an oil soluble nitrogen-containing compound containing a total of about 30 to about 300 carbon atoms and having at least one straight chain alkyl segment of 8 to 40 carbon atoms and selected from the class consisting of the amine salt and/or amide reaction product of a hydrocarbyl carboxylic acid or anhydride having 1 to 4 carbonyl groups and a primary, secondary, tertiary or quaternary amine having from 4 to about 40 carbon atoms.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: April 7, 1992
    Assignee: Exxon Research & Engineering Company
    Inventors: Nicholas Feldman, Antonio Gutierrez
  • Patent number: 5094666
    Abstract: A wax-containing middle distillate, such as diesel fuel, having improved low temperature flow properties comprises three or more components including (A) an oil-soluble ethylene backbone flow improving polymer such as ethylene vinyl acetate copolymer, (B) a hydrocarbyl substituted amine salt and/or amide of a carboxylic acid or anhydride such as phthalic anhydride salts, and (C) a hydrocarbyl substituted amine salt and/or amide of a derivative of benzoic acid such as the dihydrogenerated tallow amine salt of an alkyl substituted dithiobenzoic acid.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: March 10, 1992
    Assignee: Exxon Research and Engineering Company
    Inventors: Nicholas Feldman, Jacob J. Habeeb
  • Patent number: 5092908
    Abstract: A wax-containing middle distillate, such as diesel fuel, having improved low temperature flow properties comprises three or more components including (A) an oil-soluble ethylene backbone flow improving polymer such as ethylene vinyl acetate copolymer, (B) a hydrocarbyl substituted amine salt and/or amide of a carboxylic acid or anhydride such as phthalic anhydride salts, and (C) a hydrocarbyl substituted amine salt of a derivative of phosphoric acid such as the dihydrogenated tallow amine salt of dialkyldithiophosphoric acid.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: March 3, 1992
    Assignee: Exxon Research and Engineering Company
    Inventors: Nicholas Feldman, Jacob J. Habeeb
  • Patent number: 5076945
    Abstract: A lubricating oil composition having improved antiwear, antioxidation, and extreme pressure performance comprises a lubricating oil and a long chain hydrocarbyl amine, such as tallow amine, salt or amide of a derivative of benzoic acid or dithiobenzoic acid such as 4-hydroxy-3, 5-di-tert-butyldithiobenzoic acid.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: December 31, 1991
    Assignee: Exxon Research and Engineering Company
    Inventors: Jacob J. Habeeb, Morton Beltzer, Nicholas Feldman
  • Patent number: 4902437
    Abstract: The presence of a minor amount of certain quaternary ammonium hydroxides in an engine lubricating oil has been found to be effective in reducing and controlling combustion chamber deposits and octane requirement increase in spark ignition internal combustion engines and in reducing oil consumption in diesel engines.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: February 20, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: Joseph Vardi, Nicholas Feldman, Jacob J. Habeeb, Morton Beltzer
  • Patent number: 4787916
    Abstract: It has been found that when minor amounts of quaternary ammonium hydroxides are added to gasolines, the octane requirement increase for fuel fired spark ignition internal combustion engines is decreased or reversed.Thus, in one aspect, the present invention comprises a method for controlling the ORI of spark ignition internal combustion engines by operating such engines on a fuel containing certain quaternary ammonium hydroxides in amounts sufficient to control the ORI.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: November 29, 1988
    Assignee: Exxon Research and Engineering Company
    Inventor: Nicholas Feldman
  • Patent number: 4755189
    Abstract: A wax-containing petroleum distillate fuel composition having improved low temperature flow properties is described. The distillate fuel has added thereto:A. an amorphous, normally solid, essentially saturated hydrocarbon fraction substantially free of normal paraffin hydrocarbons;B. a wax modifying random copolymer of ethylene and an unsaturated ester; andC. an ether.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: July 5, 1988
    Assignee: Exxon Research and Engineering Company
    Inventor: Nicholas Feldman
  • Patent number: 4634550
    Abstract: A pour depressant for hydrocarbon oils, such as hydrotreated shale oil, and a method for depressing the pour point of hydrocarbon oil utilizing the pour depressant are disclosed. The depressant comprises the combination of:I. an asphaltenic material with copolymers of:II. dibehenyl fumarate vinyl acetate; and,III. ditallow fumarate vinyl acetate.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: January 6, 1987
    Assignee: Exxon Research and Engineering Company
    Inventors: Nicholas Feldman, John W. Frankenfeld
  • Patent number: 4608345
    Abstract: A colorimetric method for detecting the presence of alcohol in hydrocarbons, such as gasoline, is disclosed. The method comprises contacting the hydrocarbon with a mixture comprising:i. an alcohol soluble, hydrocarbon insoluble dye; andii. a solid insoluble in hydrocarbon and alcohol whereby the mixture undergoes a color change in the presence of alcohol.The hydrocarbon sample preferably is contacted with a drying agent to remove dissolved water prior to contacting the mixture.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: August 26, 1986
    Assignee: Exxon Research and Engineering Co.
    Inventors: Nicholas Feldman, Jerome Panzer
  • Patent number: 4462810
    Abstract: A composition for reducing the amount of particulate matter formed during the combustion of residual fuel oil, particularly No. 6 fuel oil, comprising a residual fuel oil and an effective amount of a combination of zirconium and cerium salts of carboxylic acids, alcohols, phenols or sulfonates. Another embodiment involves a process for reducing the amount of particulate matter formed during combustion of a residual fuel oil which comprises combustion of a residual fuel which contains an effective amount of said selected combination of zirconium and cerium salts.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: July 31, 1984
    Assignee: Exxon Research & Engineering Co.
    Inventors: Peter J. Jessup, Nicholas Feldman
  • Patent number: 4441890
    Abstract: The method of inhibiting or reducing the level of asphaltic sediment formed in residual fuels by adding an alkylaryl sulfonic acid stabilizer to said fuel comprising the improvement of adding an effective stabilizing amount of said stabilizer to said fuel oil and maintaining said stabilized fuel at a selected high temperature of at least about 190.degree. C. for a time sufficient to inhibit the formation or reduce the level of asphaltic sediment.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: April 10, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventor: Nicholas Feldman
  • Patent number: 4404002
    Abstract: A composition for reducing the amount of particulate matter formed during the combustion of residual fuel oil, particularly No. 6 fuel oil, comprising a residual fuel oil and an effective amount of selected oil soluble zirconium salts of an alcohol/phenol or sulfonate. Another embodiment involves a process for reducing the amount of particulate matter formed during combustion of a residual fuel oil which comprises combustion of a residual fuel oil which contains an effective amount of a selected zirconium salt of alcohol/phenol or sulfonate.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: September 13, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventor: Nicholas Feldman
  • Patent number: 4297110
    Abstract: Zirconium salts of carboxylic acids as additives in residual fuel oil to reduce particulate emission. The additives are especially effective in decreasing particulate emission in the combustion of No. 6 fuel oil, to aid in meeting current particulate emission standards.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: October 27, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventor: Nicholas Feldman
  • Patent number: 4251232
    Abstract: Amine salts, amic acids, amic acid amine salts bis-amides and imides of oil-soluble thio-bis-(C.sub.12-50 alkyl lactone acid), e.g. a secondary hydrogenated tallow amide of dithio-bis-(C.sub.16 -C.sub.24 alkyl lactone carboxylic acid), are useful in combination with a coadditive hydrocarbon such as an amorphous hydrocarbon or a hydrogenated polybutadiene in improving the cold flow properties of distillate hydrocarbon oils.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: February 17, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventors: Stanley J. Brois, Antonio Gutierrez, Nicholas Feldman
  • Patent number: 4211534
    Abstract: Oil soluble combinations of (A) ethylene polymer or copolymer, (B) a second polymer having alkyl side chains of 6 to 30 carbon atoms, and derived from carboxylic acid esters and/or olefins, and (C) nitrogen compounds, such as amides, amine salts and ammonium salts, of carboxylic acids or anhydrides, are useful in improving the cold flow properties of distillate hydrocarbon fuel oils.
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: July 8, 1980
    Assignee: Exxon Research & Engineering Co.
    Inventor: Nicholas Feldman
  • Patent number: 4210424
    Abstract: Oil-soluble combinations of (A) ethylene polymer or copolymer, (B) normal paraffinic wax composed of normal hydrocarbons whose average molecular weight is within the range of from 300 to 650, and (C) nitrogen compounds, such as amides, amine salts and ammonium salts, of carboxylic acids or anhydrides, are useful in improving the cold flow properties of distillate hydrocarbon fuel oils. Preferably, the wax contains n-paraffins ranging from C.sub.23 to C.sub.37 inclusive. If desired, the combination can be usefully stabilized by the addition of one or more compatibility additives, i.e. a polymer having alkyl side chains of 6 to 30 carbon atoms and derived from carboxylic acid esters and/or olefins or C.sub.8 -C.sub.18 alkanol, e.g. tridecyl alcohol or mixtures of said polymer and alkanol.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: July 1, 1980
    Assignee: Exxon Research & Engineering Co.
    Inventors: Nicholas Feldman, Jack Ryer, Martin F. Dooley
  • Patent number: 4184851
    Abstract: Borated derivatives of C.sub.8 to C.sub.40 hydrocarbyl substituted succinamic acids and/or acid salts thereof, preferably obtained by the reaction of boric acid with an aliphatic hydrocarbyl succinamic acid derivative, are useful alone and in combination with an amorphous hydrocarbon in improving the cold flow properties of distillate hydrocarbon oils.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: January 22, 1980
    Assignee: Exxon Research & Engineering Co.
    Inventor: Nicholas Feldman
  • Patent number: 4142866
    Abstract: Secondary amine salts of oil-soluble thio-bis-(C.sub.12-50 alkyl lactone acid), e.g. a di-tallow secondary amine bis salt of thio-bis (C.sub.22 lactone carboxylic acid), are useful in combination with a coadditive hydrocarbon such as an amorphous hydrocarbon or a hydrogenated polybutadiene in improving the cold flow properties of distillate hydrocarbon oils.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: March 6, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventors: Stanley J. Brois, Antonio Gutierrez, Nicholas Feldman
  • Patent number: 4140492
    Abstract: Borated derivatives of C.sub.8 to C.sub.40 hydrocarbyl substituted Mannich bases such as those derived from the condensation reaction of a C.sub.8 -C.sub.40 alkyl substituted hydroxy aromatic compound (said alkyl preferably having a linear chain of 16 to 22 carbons), an aldehyde and a mono (C.sub.2 -C.sub.3 alkanol) amine, preferably wherein the molar ratios of said aromatic to said aldehyde to said amine is about 1 to 0.9-1.4 to 0.9-1.4, respectively, are useful in combination with a coadditive hydrocarbon such as an amorphous hydrocarbon or a hydrogenated polybutadiene in improving the cold flow properties of distillate hydrocarbon oils.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: February 20, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventors: Nicholas Feldman, William H. Stover, William DEWaal
  • Patent number: 4014663
    Abstract: The low temperature filterability of a petroleum middle distillate fuel, such as a heating oil or a diesel fuel is improved by adding to the fuel a synergistic combination of an N-aliphatic hydrocarbyl succinamic acid or derivative thereof with a dimer of an alpha olefin, with a polymer of such dimer, or with an alkylated aromatic compound such as an alkylated diphenyl or an alkylated diphenyl ether. The olefin dimers are of alpha olefins of from 16 to 40 carbon atoms. The alkyl groups on the alkylated aromatics are derived from C.sub.16 -C.sub.50 olefins or from dimers of C.sub.16 -C.sub.40 alpha-olefins. This invention is particularly advantageous in improviing the flow of a diesel fuel through a fine filter at low temperatures.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: March 29, 1977
    Assignee: Exxon Research and Engineering Company
    Inventors: Nicholas Feldman, Arthur W. Langer, Jr.