Patents Represented by Attorney J. J. Mahon

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  • Process for improving friction modification properties of a power transmission fluid with an alkylthio succinic acid or anhydride
    Patent number: 4600519
    Abstract: There are disclosed power shift transmission fluids such as automatic transmission fluids containing a friction modifier additive being an oil soluble alkylthio succinic anhydride or acid, such as octadecyl thiosuccinic acid or anhydride.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: July 15, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventors: Antonio Gutierrez, Rosemary O'Halloran, Stanley J. Brois
  • Reforming process for enhanced benzene yield
    Patent number: 4594145
    Abstract: A process for reforming a full boiling range naptha feed to enhance benzene yield is disclosed which first separates the feed into a C.sub.6 fraction containing at least 10% by volume of C.sub.7 + hydrocarbons and a C.sub.7 + fraction, then subjecting the C.sub.6 fraction to a catalytic aromatization process and subjecting the C.sub.7 + fraction to a catalytic reforming process, followed by recovering the aromatics produced.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: June 10, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventor: John C. Roarty
  • Zeolite L
    Patent number: 4593133
    Abstract: A zeolite related to zeolite L and having a characteristic cylindrical morphology may be prepared from a crystallization gel comprising (in mole ratios of oxides):K.sub.2 O/SiO.sub.2 : 0.22-0.36H.sub.2 O/K.sub.2 O: 25-90SiO.sub.2 /Al.sub.2 O.sub.3 : 6-15and preferably with the mole ratio H.sub.2 O/K.sub.2 O+Al.sub.2 O.sub.3 +SiO.sub.2 being at least 8. The cylindrical Zeolite L may be used as a catalyst base in aromatization of acyclic hydrocarbons with high benzene yields being sustained over commercially feasible periods.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: June 3, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventor: Theodorus M. Wortel
  • Power transmission shift fluids containing two-component friction modifier additive
    Patent number: 4589993
    Abstract: There are disclosed functional fluid compositions containing a two component friction modifier additive composed of a thio-bis-alkanol succinate ester and a phosphate diester such as dioleyl phosphite. The compositions are especially useful as tractor fluids.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: May 20, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventors: William K. S. Cleveland, Jack Ryer, Harold E. Deen
  • Alkylthiomethyl substituted mono-oxazolines
    Patent number: 4584386
    Abstract: There is disclosed alkylthiomethyl oxazolines such as 2-(octadecylthiomethyl)-5-ethyl-5-methylol-2-oxazoline, suitable for use in drilling fluids as a lubricity agent and/or anti-oxidant.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: April 22, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventors: Antonio Gutierrez, Darrell W. Brownawell, Thad O. Walker, Stanley J. Brois
  • Functional fluids and lubricants having improved water tolerance
    Patent number: 4579672
    Abstract: There are disclosed functional fluids and lubricating compositions containing a minor amount of an oil-soluble alkoxypolyethyleneoxy acid phosphite ester additive which provides improved water tolerance properties to the compositions.
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: April 1, 1986
    Assignees: Exxon Research & Engineering Co., Argus Chemical Corporation
    Inventors: Lawrence R. Brecker, Otto E. Loeffler, Charles Abramoff, William K. Cleveland, Susan J. Wosatka
  • Process for loading platinum into Zeolite-L
    Patent number: 4568656
    Abstract: A process is provided for loading and uniformly distributing platinum onto a Zeolite-L. The Zeolite-L is contacted with an aqueous solution containing a platinum salt and a non-platinum metal salt, wherein the non-platinum metal salt is present in solution in an amount which is critical to preventing the formation of acid sites as well as avoiding an excess of metal ions in the form of a salt which could block the pores of the Zeolite-L. The Zeolite-L is then aged to allow the platinum to migrate and uniformly distribute throughout the Zeolite.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: February 4, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventors: Kenneth R. Poeppelmeier, Theodore D. Trowbridge, Jar-Lin Kao
  • Copper complexes of oxazolines and lactone oxazolines as lubricating oil additives
    Patent number: 4486326
    Abstract: There are disclosed lubricating oil compositions containing an oil soluble hydrocarbon substituted mono-oxazoline, bis-oxazoline or lactone oxazoline dispersant containing 0.2 to 2.0 wt % of complexed copper, the dispersant exhibiting improved varnish inhibition properties as well as providing anti-oxidation properties to the lubricating oil.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: December 4, 1984
    Assignee: Exxon Research & Engineering Co.
    Inventors: Antonio Gutierrez, Darrell W. Brownawell, Stanley J. Brois
  • Two component flow improver additive for middle distillate fuel oils
    Patent number: 4481013
    Abstract: Distillate fuels, particularly those having a relatively high final boiling point, are significantly improved in their flow and filterability properties utilizing a two component additive consisting of 25 to 95 wt. % preferably 50 to 90 wt. % of C.sub.30 -C.sub.300 oil-soluble nitrogen compound being an amide or amine salt of an aromatic or cycloaliphatic carboxylic acid and 75 to 5 wt. % preferably 10 to 50 wt. % of a certain category of ethylene-vinyl acetate copolymers.
    Type: Grant
    Filed: March 23, 1982
    Date of Patent: November 6, 1984
    Assignee: Exxon Research & Engineering Co.
    Inventors: Robert D. Tack, Kenneth Lewtas, Brian W. Davies
  • Multifunctional additives for functional fluids and lubricants
    Patent number: 4474674
    Abstract: There are disclosed novel multifunctional additives for power transmission shift fluids such as automatic transmission fluids which are diethanolamides or diisopropanolamides of alkyl thioglycolic acids or boron, phosphorous or metal reaction products thereof. These additives provide the properties of anti-oxidation, H.sub.2 S suppression, corrosion inhibition and friction modification.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: October 2, 1984
    Assignee: Exxon Research & Engineering Co.
    Inventors: Antonio Gutierrez, Harold E. Deen, Jack Ryer, Stanley J. Brois
  • Glycol ester flow improver additive for distillate fuels
    Patent number: 4464182
    Abstract: Polyoxyalkylene esters, ethers,ester/ethers or mixtures thereof containing two C.sub.10 -C.sub.30 linear saturated alkyl groups and a polyoxy (C.sub.1 -C.sub.4) alkylene glycol group of molecular weight 200 to 5,000 have been found to be effective distillate fuel flow improvers, especially for narrow boiling distillates hitherto difficult to treat, they may also be used in combination with conventional additives such as ethylene/unsaturated ester copolymers and nitrogen compounds such as diamides or amide/amine salts, ester/amides of dicarboxylic acids.
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: August 7, 1984
    Assignee: Exxon Research & Engineering Co.
    Inventors: Robert D. Tack, Kenneth Lewtas, John R. Brazier
  • Lubricating oil with improved diesel dispersancy
    Patent number: 4428849
    Abstract: Alkenyl succinimide or borated alkenyl succinimide dispersants as exemplified by a polyisobutenyl succinic anhydride - alkylene polyamine reaction product are substantially improved in their dispersancy properties in diesel engines by treating such dispersants at elevated temperatures with an oil-soluble strong acid, such as an alkaryl sulfonic acid or a phosphoric acid, such as a dialkyl monoacid phosphate. The treated dispersants are included in conventional lubricating oil formulations.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: January 31, 1984
    Assignee: Exxon Research & Engineering Co.
    Inventor: Max J. Wisotsky
  • Demulsifier composition for automatic transmission fluids
    Patent number: 4396518
    Abstract: There is disclosed an automatic transmission fluid containing an improved demulsifier additive being a combination of an acylated alkoxylated isopentylphenolic resin and a propoxylated-ethoxylated amylphenolic resin, the additive being effective at concentrations of 30 to 50 ppm.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: August 2, 1983
    Assignee: Exxon Research & Engineering Co.
    Inventors: Jack Ryer, Harold E. Deen
  • Thio bis-lactone compounds derived from n-octenyl succinic anhydride
    Patent number: 4391981
    Abstract: Lactone oxazoline reaction products of hydrocarbon substituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are useful additives in oleaginous compositions, such as sludge dispersants for lubricating oil, or anti-rust agents for gasoline.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: July 5, 1983
    Assignee: Exxon Research & Engineering Co.
    Inventors: Stanley J. Brois, Antonio Gutierrez
  • Co-dispersant stabilized friction modifier lubricating oil composition
    Patent number: 4388201
    Abstract: Lubricating oil compositions which contain polycarboxylic acid-glycol esters as friction modifiers in combination with hydrocarbon soluble borated or non-borated alkenyl succinimide dispersant and especially those also containing metal additives are stabilized against tendency of such components to form sediment upon storage through addition of small proportions of a co-dispersant being an oil-soluble hydrocarbyl substituted mono or bis-oxazoline or lactone oxazoline.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: June 14, 1983
    Assignee: Exxon Research & Engineering Co.
    Inventors: Darrell W. Brownawell, Harold Shaub, Max J. Wisotsky, Antonio Gutierrez
  • Calcium sulphonate process
    Patent number: 4387033
    Abstract: In producing basic Calcium Sulphonate by carbonating mixtures of sulphonic acids, calcium hydroxide, alcohols and toluene the use of a narrowly defined temperature profile during carbonation enables product of improved oil solubility and viscosity to be obtained as well as leading to improved filterability.
    Type: Grant
    Filed: August 18, 1981
    Date of Patent: June 7, 1983
    Assignee: Exxon Research & Engineering Co.
    Inventors: Alain L. Lenack, Robert Tirtiaux
  • Two-phase process for the preparation of azole and azoline disulfides
    Patent number: 4351945
    Abstract: Azole and azoline disulfides useful as corrosion inhibitors and antiwear agents are prepared by the halogen-induced coupling of a thiol reactant e.g., hydrocarbyl mercaptans, with a metal azole thiolate, e.g. the potassium salt of 3,5-bis-mercapto 1,2,4-thiadiazole or 2,5-bis-mercapto 1,3,4 thiadiazole in a 2-phase reaction medium comprising a mixture of a hydrocarbon and water.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: September 28, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Stanley J. Brois, Antonio Gutierrez
  • Functional fluid containing metal salts of esters of hydrocarbyl succinic acid or anhydride with thio-bis-alkanols as antioxidants
    Patent number: 4344853
    Abstract: There are disclosed zinc and nickel salts of mono- or di- esters of C.sub.12 -C.sub.50 aliphatic hydrocarbon substituted succinic acids or anhydrides, such as octadecenyl succinic anhydride, with thio-bis-alkanols such as dithiodiethanol. The products are useful as antioxidants for lubricating oils and functional fluids, especially automatic transmission fluids.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: August 17, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Antonio Gutierrez, Stanley J. Brois, Jack Ryer, Harold E. Deen
  • Lubricating oil with improved diesel dispersancy
    Patent number: 4338205
    Abstract: Alkenyl succinimide or borated alkenyl succinimide dispersants as exemplified by a polyisobutenyl succinic anhydride-alkylene polyamine reaction product are substantially improved in their dispersancy properties in diesel engines by treating such dispersants at elevated temperatures with an oil-soluble strong acid, such as an alkaryl sulfonic acid or a phosphoric acid, such as a dialkyl monoacid phosphate. The treated dispersants are included in conventional lubricating oil formulations.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: July 6, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventor: Max J. Wisotsky
  • Oil additives containing a thiocarbamyl moiety
    Patent number: 4303539
    Abstract: Thiocarbamyl derivatives, including thioureas and thiocarbamic esters derived from the reaction of an alkenyl isothiocyanate with an amine and alcohol or thio, respectively, have utility as an additive for hydrocarbons, particularly fuels and mineral lubricating oils whereby enhanced anticorrosion, oxidation inhibition and/or dispersancy activity is imparted to said hydrocarbons.
    Type: Grant
    Filed: December 19, 1980
    Date of Patent: December 1, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventor: Won R. Song