Patents Represented by Attorney Carl G. Seutter

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  • Multifunctional viscosity index improver
    Patent number: 4842756
    Abstract: Lubricating oils of improved oxidative stability, dispersancy, and viscosity index contain ethylene-propylene copolymer bearing allyl glycidyl ether or glycidyl methacrylate graft monomer--which has been functionalized with 2,5-dimethyl aniline or 2,6-dimethyl morpholine.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: June 27, 1989
    Assignee: Texaco Inc.
    Inventors: Christopher S. Liu, Maria M. Kapuscinski, Larry D. Grina, Ronald E. Jones
  • Lubricating oil containing dispersant viscosity index improver
    Patent number: 4826613
    Abstract: Lubricating oil of improved dispersancy and viscosity index contains ethylene-propylene polymer bearing glycidyl methacrylate graft which as been functionalized with mercaptoacetic acid.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: May 2, 1989
    Assignee: Texaco Inc.
    Inventors: William P. Hart, Christopher S. Liu
  • Hydrocarbon compositions containing polyolefin graft polymers having amine and phenothiazine grafted moieties
    Patent number: 4820776
    Abstract: Fuel oils and lubricants of improved properties contain ethylene-propylene copolymers bearing units derived fron N-vinyl pyrrolidone and phenothiazine.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: April 11, 1989
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Larry D. Grina, Ronald E. Jones, Rodney L. Sung
  • Dehydration of glycols
    Patent number: 4802988
    Abstract: Concentration of aqueous solutions of ethylene glycol may be effected by a composite membrane including a glutaraldehyde--crosslined polyvinyl alcohol bonded to a porous layer of polysulfone on a polyester backing.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: February 7, 1989
    Assignee: Texaco Inc.
    Inventors: Craig R. Bartels, John Reale, Jr.
  • Catalyst for control of emission of sulfur oxides
    Patent number: 4798819
    Abstract: A composition of matter, useful for removing sulfur oxides from gases, comprising a porous refractory support bearing as a first component (i) at least one component containing bismuth, chromium, or a rare earth, said first component being in the form of crystals of oxide of crystal size less than about 90 Angstrom units, and as second component at least one alkali metal--a typical composition containing 0.6 w % K and 4.8 w % Ce on alumina, the Ce being present as cystals of CeO.sub.2 of particle size of about 66 Angstrom units.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: January 17, 1989
    Assignee: Texaco Inc.
    Inventors: Paul H. Lewis, Eugene P. Dai, Edward H. Holst
  • Hydrocarbon containing anti-oxidant system
    Patent number: 4798678
    Abstract: An oil containing a viscosity index improver of improved oxidative stability contains, as an anti-oxidant system, 2,6-di-t-butylphenol and N-aminoethylpiperazine.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: January 17, 1989
    Assignee: Texaco Inc.
    Inventors: Christopher S. Liu, Larry D. Grina, Maria M. Kapuscinski
  • Separation of organic liquids
    Patent number: 4798674
    Abstract: Mixtures containing methanol and dimethyl carbonate or methanol and methyl t-butyl ether may be treated by pervaporation to recover product containing decreased quantity of methanol.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: January 17, 1989
    Assignee: Texaco Inc.
    Inventors: Mordechai Pasternak, Craig R. Bartels, John Reale, Jr.
  • Lubricating oil containing dispersant viscosity index improver
    Patent number: 4790948
    Abstract: Lubricating oils of improved properties contain a terpolymer of glycidyl methacrylate, lauryl methacrylate, and stearyl methacrylate which has been functionalized or coupled with phenothiazine and with N-methyl piperazine.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: December 13, 1988
    Assignee: Texaco Inc.
    Inventors: Christopher S. Liu, William P. Hart, Maria M. Kapuscinski
  • Preparation of dimethyl carbonate
    Patent number: 4785130
    Abstract: An organic carbonate such as dimethyl carbonate is prepared by reacting an alcohol such as methanol and carbon monoxide in the presence of a catalyst system containing Cu(OMe)Cl as catalyst and boron trifluoride, calcium chloride, benzyltriethylammonium chloride, etc. as promoters.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: November 15, 1988
    Assignee: Texaco Inc.
    Inventor: Ajit K. Bhattacharya
  • Lubricating oil containing a mannich base
    Patent number: 4780230
    Abstract: A lubricating oil contains a carbon-carbon backbone polymer containing residual unsaturation and bearing graft moieties derived from graft monomers containing ethylenic unsaturation and an epoxide moiety, and bonded to at least one of said graft moieties through an opened epoxide moiety, a Mannich base, prepared by reaction of an amine, an aldehyde, and a hindered phenol containing an active hydrogen atom.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: October 25, 1988
    Assignee: Texaco Inc.
    Inventors: Christopher S. Liu, Donald J. Clarke, Larry D. Grina
  • Oil containing dispersant VII olefin copolymer
    Patent number: 4769043
    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: June 8, 1987
    Date of Patent: September 6, 1988
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapusciniski, Benjamin J. Kaufman, Christopher S. Liu
  • Hydrocarbon compositions containing polyolefin graft polymers
    Patent number: 4764304
    Abstract: Dispersant viscosity index improvers for lubricating oils contain an EPR or EPT polymer onto which has been graft polymerized isocyanatoethyl methacrylate and thereafter reacted with N-methyl piperazine.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: August 16, 1988
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Christopher S. Liu, William P. Hart
  • Lubricating oil of improved anti-friction properties containing hydroxyhydrocarbyl mercapto ester of a C.sub.1 -C.sub.40 fatty acid such as that derived from coconut oil
    Patent number: 4758361
    Abstract: Lubricating oil, containing a beta-hydroxethyl mercapto ester of a fatty acid derived from coconut oil, is characterized by improvement in anti-wear and anti-friction properties.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: July 19, 1988
    Assignee: Texaco Inc.
    Inventor: Thomas J. Karol
  • Hydrocarbon compositions containing polyolefin graft polymers
    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
  • Gasoline compositions containing reaction products of fatty acid esters and amines as carburetor detergents
    Patent number: 4729769
    Abstract: Improved gasolines contain, as a detergent additive, the reaction product of coconut oil and diethanolamine or dimethylaminopropylamine.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: March 8, 1988
    Assignee: Texaco Inc.
    Inventors: Raymond C. Schlicht, Mark D. Levin, Sheldon Herbstman, Rodney L. Sung
  • Oil containing dispersant VII olefin copolymer
    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
  • Process of preparing a catalyst containing activated isomerization sites
    Patent number: 4716137
    Abstract: Isomerization is effected at improved conversion and selectivity by use of a 0.5 w %-2.5 w % platinum-palladium group metal on hydrogen mordenite catalyst, the catalyst having been calcined at 1200.degree. F.-1500.degree. F. prior to use whereby it acquires activated sites not present in mordenite calcined at lower temperature.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: December 29, 1987
    Assignee: Texaco Inc.
    Inventor: Paul H. Lewis
  • Production of synthesis gas
    Patent number: 4705542
    Abstract: Deposition of ash in the outlet conduit of a synthesis gas quench chamber is reduced or eliminated by providing a streamlined configuration at the mouth and throat of the outlet conduit.
    Type: Grant
    Filed: March 1, 1984
    Date of Patent: November 10, 1987
    Assignee: Texaco Inc.
    Inventor: William N. Gilmer
  • Cyclized unsaturated keto acids
    Patent number: 4701553
    Abstract: Unsaturated cyclic keto acid may be prepared by cyclizing alken-2-yl dicarboxylic acid anhydride with Lewis acid catalyst in anhydrous Friedel-Craft solvent. Amides of these unsaturated cyclic keto acids useful as friction improvers in lubricating oils, may be prepared by reaction of an amine such as ethanolamine with an unsaturated cyclic keto acid.
    Type: Grant
    Filed: January 28, 1983
    Date of Patent: October 20, 1987
    Assignee: Texaco Inc., White
    Inventor: Justin C. Powell
  • Novel ligand catalyst systems formed by reaction of carbonyl compounds with organosilicon compounds
    Patent number: 4689422
    Abstract: A novel ligand system useful in preparation of dimethyl carbonate is prepared by complexing a metal salt such as cuprous chloride Cu.sub.2 Cl.sub.2 with a ligand formed by reacting a carbonyl-containing compound such as ethyl formate with an organosilicon compound such as ethyl formate with an organosilicon compound containing alkoxy and amine functionality, such as 3-aminopropyltriethoxysilane or [3-(2-aminoethyl)aminopropyl]trimethoxysilane.
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: August 25, 1987
    Assignee: Texaco Inc.
    Inventors: Robert A. Sawicki, Harry Chafetz