Patents by Inventor Edward T. Marquis

Edward T. Marquis 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: 5283356
    Abstract: A method for the manufacture of alkylene carbonates is disclosed. Alkylene carbonates are prepared by reacting alkylene oxides and carbon dioxide in the presence of a metal phthalocyanine catalyst.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: February 1, 1994
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, John R. Sanderson
  • Patent number: 5276239
    Abstract: A process is disclosed for preparing synthetic lubricant base stocks having a high dimer to trimer ratio from long-chain olefins. These synthetic lubricant base stocks are prepared in good yield by dimerizing linear olefins using a catalyst comprising a silica gel alkylsulfonic acid.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: January 4, 1994
    Assignee: Texaco Chemical Company
    Inventors: Sanderson John R., John F. Knifton, Edward T. Marquis
  • Patent number: 5274138
    Abstract: An epoxidation reaction wherein: an olefin and an organic hydroperoxide, preferably, propylene and tertiary butyl hydroperoxide are reacted in a primary reaction zone in a liquid phase with an organic solvent, preferably tertiary butyl alcohol, in the presence of a soluble molybdenum catalyst at a ratio of propylene to tertiary butyl hydroperoxide of from about 0.9:1 to about 3:1, at a reaction temperature from about 100.degree. C. to about 140.degree. C.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: December 28, 1993
    Assignee: Texaco Chemical Company
    Inventors: Kenneth P. Keating, Edward T. Marquis, Mark A. Mueller
  • Patent number: 5264132
    Abstract: Disclosed is a method for removing ammonia, organic amines and alkaline impurities from waste water which comprises using a partially spent ion exchange resin which no longer meets the purity requirements for the production of MTBE, washing the catalyst with water, contacting it with waste water for a an adequate period and removing the purified filtrate.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: November 23, 1993
    Assignee: Texaco Chemical Company
    Inventors: George P. Speranza, Edward T. Marquis
  • Patent number: 5243118
    Abstract: An improved process is disclosed for preparing synthetic lubricant base stocks. Synthetic lubricant base stocks are prepared in good yield by oligomerizing linear olefins using sulfate-activated molecular sieves as catalyst.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: September 7, 1993
    Assignee: Texaco Chemical Company
    Inventors: John R. Sanderson, John F. Knifton, Edward T. Marquis
  • Patent number: 5233116
    Abstract: Synthetic lubricant base stocks may be prepared in good yield by oligomerizing linear olefin monomers using certain acidic calcium montmorillonite clay catalysts. When the oligomers are prepared at a temperature greater than about 200.degree. C., and any unreacted linear olefin monomer is removed, oligomers having an iodine value less than about 3 mg/g are obtained. An even lower iodine value is obtained when a hydrocarbon possessing a tertiary hydrogen is mixed with the linear olefin feed, and the mixture is contacted with the clay at a temperature greater than about 200.degree. C. Little or no hydrogenation may be required of oligomers prepared in this manner to obtain base stocks suitable for use as synthetic lubricants.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: August 3, 1993
    Assignee: Texaco Chemical Company
    Inventors: John R. Sanderson, John F. Knifton, Edward T. Marquis
  • Patent number: 5216182
    Abstract: In the preparation of tertiary butyl alcohol and a linear C.sub.3 -C.sub.12 mono epoxide by the epoxidation reaction of a linear C.sub.3 -C.sub.12 alpha mono olefin with tertiary butyl hydroperoxide in solution in tertiary butyl alcohol in the presence of a catalytic amount of a soluble complex of molybdenum with ethylene glycol, a portion of the catalyst that is used is a recycle (final) ethylene glycol solution of a complex of ethylene glycol with ammonium-containing molybdenum compounds prepared from ethylene glycol and a precipitate of solid ammonium-containing molybdenum compounds formed by saturating a heavy distillation fraction with ammonia to thereby form a liquid amination product containing a precipitate of solid ammonium-containing molybdenum compounds; the heavy distillation fraction being obtained by distillation of the epoxidation reaction product.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: June 1, 1993
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, Robert A. Meyer
  • Patent number: 5202040
    Abstract: Synthetic lubricant base stocks having an increased viscosity are disclosed. These synthetic lubricant base stocks comprises a mixture of (1) oligomers prepared from a linear olefin having from 10 to 24 carbon atoms; and (2) alkylated anisole having an alkyl group containing from 10 to 24 carbon atoms. These synthetic lubricant base stocks may be prepared by co-reacting a linear olefin having from 10 to 24 carbon atoms and anisole. Optionally, the mixture of oligomers and alkylated anisoles may be hydrogenated, to prepare a mixture of reduced oligomers and alkylated methoxycyclohexanes.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: April 13, 1993
    Assignee: Texaco Chemical Company
    Inventors: John R. Sanderson, Edward T. Marquis
  • Patent number: 5183514
    Abstract: A process for the dissolution of polyurethane foams is disclosed. A polyurethane foam may be dissolved, or removed from a substrate, by contacting the polyurethane foam with 1,2-dialkyl imidazole, alone or as a co-solvent.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: February 2, 1993
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, George P. Speranza, Wei-Yang Su
  • Patent number: 5180869
    Abstract: A process is disclosed for preparing synthetic lubricant base stocks having improved properties. Synthetic lubricant base stocks may be prepared in good yield by oligomerizing linear olefins using certain acidic montmorillonite clay catalysts. When a mixture of poly(isobutylene) and long-chain linear olefin, in which up to about 10 wt. % of the mixture is poly(isobutylene), is co-reacted in the presence of these catalysts, a synthetic lubricant base stock having a high viscosity and a high viscosity index is prepared.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: January 19, 1993
    Assignee: Texaco Chemical Company
    Inventors: John R. Sanderson, Edward T. Marquis
  • Patent number: 5179214
    Abstract: A method for the manufacture of alkylene carbonates is disclosed. Alkylene carbonates that are free of halogen contaminants are prepared by reacting alkylene oxides and carbon dioxide in the presence of a catalyst selected from the group consisting of cerous acetate, ceric ammonium nitrate, cerous nitrate hexahydrate, and ceric potassium nitrate.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: January 12, 1993
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, John R. Sanderson
  • Patent number: 5178788
    Abstract: A co-solvent system for the dissolution of cured flexible polyurethane foams, cured rigid polyurethane foams, and cured polyester resins is disclosed. The co-solvent system comprises a mixture of an alkylene carbonate and tetramethyl urea.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: January 12, 1993
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, Michael Cuscurida
  • Patent number: 5171904
    Abstract: Synthetic lubricant base stocks having a low pour point are disclosed. These synthetic lubricant base stocks comprise a mixture of (1) oligomers prepared from a linear olefin having from 10 to 24 carbon atoms; and (2) alkylated decalin having an alkyl group containing from 10 to 24 carbon atoms. These synthetic lubricant base stocks may be prepared by hydrogenating the co-reaction products of a linear olefin having from 10 to 24 carbon atoms and naphthalene.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: December 15, 1992
    Assignee: Texaco Chemical Company
    Inventors: John R. Sanderson, Edward T. Marquis
  • Patent number: 5171909
    Abstract: A process is disclosed for preparing synthetic lubricant base stocks. Synthetic lubricant base stocks may be prepared in good yield by oligomerizing long-chain olefins using certain acidic calcium montmorillonite clay catalysts. When long-chain vinylidene olefin and long-chain alpha- and/or internal-olefin are co-oligomerized, a synthetic lubricant base stock having a lower pour point is obtained.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: December 15, 1992
    Assignee: Texaco Chemical Company
    Inventors: John R. Sanderson, Edward T. Marquis
  • Patent number: 5169550
    Abstract: Synthetic lubricant base stocks having an increased viscosity are disclosed. These synthetic lubricant base stocks comprise a mixture of (1) oligomers prepared from a linear olefin having from 10 to 24 carbon atoms; and (2) alkylated cyclohexanol having an alkyl group containing from 10 to 24 carbon atoms. These synthetic lubricant base stocks may be prepared by hydrogenating the co-reaction products of a linear olefin having from 10 to 24 carbon atoms and phenol.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: December 8, 1992
    Assignee: Texaco Chemical Company
    Inventors: John R. Sanderson, Edward T. Marquis
  • Patent number: 5160587
    Abstract: An extractive distillation agent consisting essentially of dipropylene glycol is fed to an extractive distillation column used for the distillation of propylene oxide contaminated with water, acetone and methanol to obtain an overhead distillate fraction consisting of essentially anhydrous propylene oxide contaminated with reduced quantities of acetone and methanol, and a heavier bottoms distillation fraction containing substantially all of the dipropylene glycol, water and acetone and some of the methanol introduced into the distillation column.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: November 3, 1992
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, George P. Speranza, Yu-Hwa E. Sheu, William K. Culbreth, III, David G. Pottratz
  • Patent number: 5159123
    Abstract: Disclosed is an improvement in a process for polymerizing 1,3-butadiene selectively to form relatively low molecular weight hydroxyl-terminated polybutadiene oligomers in the presence of an aqueous solution of hydrogen peroxide which comprises the use of a solvent selected from the group consisting of alkylene glycol monoalkyl ether acetates and aliphatic glycol ether carboxylates to produce butadiene oligomers having a high degree of OH functionality and suppression of formation of solid or gel-type insoluble rubber by-products.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: October 27, 1992
    Assignee: Texaco Chemical Company
    Inventors: John F. Knifton, Edward T. Marquis
  • Patent number: 5154803
    Abstract: An extractive distillation agent consisting essentially of 2-methyl-2,4-pentanediol is fed to an extractive distillation column used for the distillation of propylene oxide contaminated with water, acetone and methanol to obtain an overhead distillate fraction consisting of essentially anhydrous propylene oxide contaminated with reduced quantities of acetone and methanol, and a heavier bottoms distillation fraction containing substantially all of the 2-methyl-2,4-pentanediol, water and acetone and some of the methanol introduced into the distillation column.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: October 13, 1992
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, George P. Speranza, Yu-Hwa E. Sheu, William K. Culbreth, III, David G. Pottratz
  • Patent number: 5154804
    Abstract: An extractive distillation agent consisting essentially of a monohydroxy alkoxyalkanol containing 5 to 8 carbon atoms is fed to an extractive distillation column used for the distillation of propylene oxide contaminated with water to obtain an overhead distillate fraction consisting of essentially anhydrous propylene oxide, and a heavier bottoms distillation fraction containing substantially all of the monohydroxy alkoxyalkanol and water introduced into the distillation column.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: October 13, 1992
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, George P. Speranza, Yu-Hwa E. Sheu, William K. Culbreth, III, David G. Pottratz
  • Patent number: 5151530
    Abstract: The distillation product fraction obtained from an isobutane oxidation reaction product after the removal of unreacted isobutane will contain tertiary butyl hydroperoxide, tertiary butyl alcohol and carboxylic acid contaminants such as formic acid, acetic acid and isobutyric acid. It has been discovered that when the distillation product fraction is treated with about 1/2 to 1 equivalents of calcium oxide and/or calcium hydroxide based on the carboxylic acid content of the distillate product fraction, a portion of the carboxylic acid contaminants will precipitate thus partially purifying the distillation product fraction so that, thereafter, molybdenum precipitation will be substantially inhibited when the thus-treated distillation product fraction is used as a feedstock for an epoxidation reaction wherein tertiary butyl hydroperoxide is reacted with an olefin in the presence of a soluble molybdenum catalyst to provide an olefin epoxide and additional tertiary butyl hydroperoxide.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: September 29, 1992
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, John R. Sanderson, Robert A. Meyer