Patents Represented by Attorney, Agent or Law Firm Linda M. Scuorzo
  • Patent number: 6878678
    Abstract: To provide an oil composition for automatic transmission having high wet friction torque capacity and shudder preventing performance, and excellent also in durability of shudder preventing performance as an automatic transmission oil for lock-up clutch and slip control.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: April 12, 2005
    Assignee: Tonen General Sekiyu K.K.
    Inventors: Asep Handaya Saputra, Tomohiro Kato, Narihiko Yoshimura
  • Patent number: 6767452
    Abstract: The invention is a process for decreasing the acidity of an organic acid containing petroleum oil, comprising contacting said petroleum oil containing organic acids with an effective amount of an alcohol and an effective trace amount of a base selected from Group IA and IIA metal carbonates, hydroxides, phosphates, biphosphates and mixtures of a hydroxide and phosphate and/or biphosphates at a temperature and under conditions sufficient to form the corresponding ester of said alcohol.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: July 27, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Pacifico Viernes Manalastas, Guido Sartori
  • Patent number: 6750185
    Abstract: The invention provides a lubricant oil composition useful for reduction in friction loss and improvement in fuel economy in internal combustion engines, particularly, a lubricant oil composition for internal combustion engines exhibiting an excellent friction reducing effect even in a diesel engine equipped with EGR accompanied with an increase in soot content in oil. The invention is a lubricant composition for internal combustion engines comprising a lubricant base oil consisting of a mineral oil and/or synthetic oil or the like incorporated with 1 wt % or more, based on the total weight of the lubricant oil composition, a nonionic surfactant with alkylene oxide added thereto consisting of at least one compound having an HLB value of 15 or more and a molecular weight of 900 or more, and a friction reducing method for internal combustion engines using this lubricant oil composition.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: June 15, 2004
    Assignee: TonenGeneral Sekiyu K.K.
    Inventors: Sonmin Ryu, Shuzo Nemoto, Satoshi Ogano
  • Patent number: 6706669
    Abstract: The present invention relates to a method for inhibiting high temperature of corrosion-prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of phosphorous acid, typically up to 1000 wppm, to the metal surface.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: March 16, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Guido Sartori, David Craig Dalrymple, Saul Charles Blum, Liza Marie Monette, Mohsen S. Yeganeh, Andreas Vogel
  • Patent number: 6679987
    Abstract: The invention relates to processes for treating acidic crudes or fractions thereof to reduce or eliminate their acidity and corrosivity by addition of suitable amounts of Group IA or Group IIA oxides, hydroxides and hydrates and Group IIA metal naphthenate salts. The process has the additional benefits of reducing materials handling problems associated with treating acidic crude oils using liquid solvents and in reducing emulsion formation.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: January 20, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Saul Charles Blum, Guido Sartori, David William Savage, Martin Leo Gorbaty, Bruce Henry Ballinger, Michael Paul Anderson, Trikur Anantharaman Ramanarayanan, David J. Martella
  • Patent number: 6669743
    Abstract: Clean distillate useful as a jet fuel or jet blending stock is produced from Fischer-Tropsch wax by separating wax into heavier and lighter fractions; further separating the lighter fraction and hydroisomerizing the heavier fraction and that portion of the light fraction above about 475° F. The isomerized product is blended with the untreated portion of the lighter fraction to produce high quality, clean, jet fuel.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: December 30, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Robert J. Wittenbrink, Paul J Berlowitz, Bruce R. Cook
  • Patent number: 6641716
    Abstract: An embodiment of the present invention is a method for isolating conducting polymer precursors by contacting a non-basic heterocyclic nitrogen containing hydrocarbon stream having a boiling point of from 232° C. (450° F.) to 566° C. (1050° F.) with an effective amount of a treating agent selected from monohydroxyl alcohols having a density at 25° C. of less than 0.90 g/cm3 and mixtures thereof, at conditions effective to maintain the reactants in a liquid phase to produce a first stream enriched in non-basic heterocyclic nitrogen containing hydrocarbon compounds and a second treated stream having a decreased non-basic heterocyclic nitrogen content. Optionally, an effective amount of mineral acid may be added to the hydrocarbon stream to enhance the process.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: November 4, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Mark Alan Greaney, John N. Begasse
  • Patent number: 6642421
    Abstract: An embodiment of the present invention is a method for isolating conducting polymer precursors by contacting a non-basic heterocyclic nitrogen containing hydrocarbon stream having a boiling point of from 232° C. (450° F.) to 566° C. (1050° F.) with an effective amount of a treating agent selected from the group consisting of alkylene and polyalkylene glycols and glycol ethers and mixtures thereof, having a molecular weight of less than 1000 and 1200, respectively, at conditions effective to maintain the reactants in a liquid phase to produce a first stream enriched in non-basic heterocyclic nitrogen containing hydrocarbon compounds and a second treated stream having a decreased non-basic heterocyclic nitrogen content. Optionally, an effective amount of a mineral acid may be added to the treating agent to enhance the process.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: November 4, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Mark Alan Greaney, John N. Begasse
  • Patent number: 6627069
    Abstract: The present invention relates to a process for reducing naphthenic acid content of crude oils and its fractions in the essential absence of oxygen and in the presence of an aqueous base selected from Group IA and IIA hydroxides and ammonium hydroxide and mixtures thereof, a phase transfer agent that is a quaternary onium salt in amounts of from 10−5 to 10−1 at a temperature and pressure effective to produce a treated petroleum feed having a decreased naphthenic acid content and an aqueous phase containing naphthenate salts, phase transfer agent and base.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: September 30, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Mark Alan Greaney
  • Patent number: 6617286
    Abstract: To provide a lubricating oil composition for continuously variable transmission which ensures both a high coefficient of friction between metals required for a push belt-type CTV oil and excellent oxidation stability guaranteeing the performance over a long time. A lubricating oil composition for continuously variable transmission is provided, which comprises a lubricating base oil made of a mineral oil and/or a synthetic oil formulated with a wear preventive a metal detergent and an ashless dispersant, wherein the ashless dispersant is made of a boron-containing succinimide having boron at a rate of one or more atoms in one molecule of the ashless dispersant.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: September 9, 2003
    Assignee: Tonen General Sekiyu K.K.
    Inventors: Takehisa Sato, Takanori Kugimiya
  • Patent number: 6599949
    Abstract: The invention is directed towards a chemical demulsifier formulation comprising an alkyl aromatic sulfonic acid additive with at least 16 carbon atom alkyl group and at least two 6 carbon-ring aromatic group and a co-additive selected from the group consisting of dipropylene monobutyl ether, aromatic naphtha, isoparaffinic solvent, cycloparaffinic solvent, aromatic solvent, diethylene glycol monobutyl ether, benzyl alcohol and mixtures thereof and a process for demulsification and desalting crude oil using the demulsifier formulation.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: July 29, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ramesh Varadaraj, Cornelius Hendrick Brons
  • Patent number: 6593281
    Abstract: To provide a lubricating oil composition for automatic transmission which ensures both a high torque capacity of a wet clutch and a good &mgr;(coefficient of friction)-V (sliding velocity) characteristic in an automatic transmission along with excellent storage stability in a high humidity environment. A lubricating oil composition for automatic transmission is provided, which comprises a lubricating base oil made of a mineral oil and/or a synthetic oil formulated with a friction modifier, a metal detergent and an ashless dispersant, characterized in that said ashless dispersant consists of an succinimide having boron at a rate of three or less atoms in one molecule of the ashless dispersant.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: July 15, 2003
    Assignee: TonenGeneral Sekiyu K.K.
    Inventors: Takehisa Sato, Takanori Kugimiya
  • Patent number: 6593278
    Abstract: The present invention relates to a method for inhibiting corrosion of corrosion-prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of certain sulfur and phosphorus-free aromatic compounds substituted with nitrogen, containing functional groups at the 5- or 3, 5-position, typically up to 1000 wppm, to the metal surface.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: July 15, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Mohsen S. Yeganeh, Shawn Michael Dougal, Guido Sartori, David Craig Dalrymple, Cheayao Zhang, Saul Charles Blum, Liza Marie Monette
  • Patent number: 6583091
    Abstract: The present invention relates to a method for inhibiting high temperature corrosion of corrosion prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of 4-sulfophthalic acid, typically up to 1000 wppm, to the metal surface.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: June 24, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Guido Sartori, David Craig Dalrymple, Saul Charles Blum, Liza Marie Monette, Mohsen S. Yeganeh, Andreas Vogel
  • Patent number: 6559104
    Abstract: The present invention relates to a method for inhibiting high temperature corrosion of corrosion prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of an additive aromatic compound tri-substituted with acidic functionalities selected from 5-hydroxyisophthalic acid and 1,3,5-benzenetricarboxylic acid, typically up to 1000 wppm, to the metal surface.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: May 6, 2003
    Assignee: ExxonMobil Research and Engineering Co.
    Inventors: Guido Sartori, David Craig Dalrymple, Saul Charles Blum, Liza Marie Monette, Mohsen S. Yeganeh, Andreas Vogel
  • Patent number: 6544411
    Abstract: The invention describes a method for decreasing the viscosity of crude oils and residuum utilizing a combination of acid and sonic treatment.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: April 8, 2003
    Assignee: ExxonMobile Research and Engineering Co.
    Inventor: Ramesh Varadaraj
  • Patent number: 6537950
    Abstract: The present invention relates to a method for inhibiting high temperature corrosion of corrosion prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of triphenylstibine, typically up to 1000 wppm, to the metal surface.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: March 25, 2003
    Assignee: ExxonMobil Research and Engineering Co.
    Inventors: Guido Sartori, David Craig Dalrymple, Saul Charles Blum, Liza Marie Monette, Mohsen S. Yeganeh
  • Patent number: 6534453
    Abstract: The inventions relate to light oil compositions comprising a base oil, not less than 0.01% by volume of a light oil resulting from catalytic cracking and 20 to 200 ppm (on the weight basis) of a lubricity improver, with a total sulfur content of not more than 0.05% by weight, characterized in that the light oil resulting from catalytic cracking contains (1) not less than 25% by volume of bicyclic polycyclic aromatic compounds and (2) not less than 5% by volume of tricyclic polycyclic aromatic compounds. These compositions have a sulfur content of not more than 0.05% by weight and is excellent in lubricant performance.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: March 18, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Noriaki Omori, Kazuyoshi Namiyama
  • Patent number: 6531055
    Abstract: The present invention relates to a process for reducing naphthenic acid content of crude oils and its fractions in the presence of an aqueous base selected from Group IA and IIA hydroxides and ammonium hydroxide and mixtures thereof, a phase transfer agent at a temperature and pressure effective to produce a treated petroleum feed having a decreased naphthenic acid content and an aqueous phase containing naphthenate salts, phase transfer agent and base.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: March 11, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Mark Alan Greaney
  • Patent number: 6511947
    Abstract: Heat resistant lubricatant oil compositions consisting of a synthetic lubricating oil composition mainly composed of a polyphenyl ether and so excellent in heat and oxidation resistance and wear resistance as to be suitable for use under severe conditions, particularly, under high-temperature and high-load conditions are disclosed. One embodiment is a lubricating oil composition obtained by mixing, to (a) a base oil consisting of a polyphenyl ether and/or a polyphenyl thioether, (b) an amine-type antioxidant 0.1-0.8 mass %, on the basis of the total mass of the lubricating oil composition, (c) a phosphate 2-3 mass %, and (d) an amine salt of acid phosphate 0.07-0.15 mass %. A second embodiment is a lubricating oil composition obtained by mixing, to (a) a base oil consisting of a polyphenyl ether having 5 aromatic rings and/or its hydrocarbon substituted group, (b) a polyphenyl thioether 0.05-5 mass %, on the basis of the total mass of the lubricating oil composition, (c) an amine antioxidant 0.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: January 28, 2003
    Assignee: Tonen General Sekiyu K.K.
    Inventors: Hiroshi Nakanishi, Noboru Umemoto