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: 6169061
    Abstract: This invention concerns a composition useful as a paint remover, comprising: alkylene carbonate such as propylene carbonate or ethylene carbonate, hydrogen peroxide, and water, and optionally an alcohol such as benzyl alcohol. In another broad respect, his invention concerns a process for removing paint, comprising: applying a composition containing alkylene carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint. In another broad respect, this invention is a composition useful as a paint remover, comprising: dialkyl carbonate, hydrogen peroxide, and water, optionally containing an alcohol, optionally containing a glycol ether. In another broad respect, this invention is a process for removing paint, comprising: applying a composition containing dialkyl carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: January 2, 2001
    Assignee: Huntsman Petrochemical Corporation
    Inventors: James R. Machac, Jr., Edward T. Marquis, Susan A. Woodrum
  • Patent number: 6162776
    Abstract: This invention concerns a composition useful as a paint remover, comprising: alkylene carbonate such as propylene carbonate or ethylene carbonate, hydrogen peroxide, and water, and optionally an alcohol such as benzyl alcohol. In another broad respect, this invention concerns a process for removing paint, comprising: applying a composition containing alkylene carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint. In another broad respect, this invention is a composition useful as a paint remover, comprising: dialkyl carbonate, hydrogen peroxide, and water, optionally containing an alcohol, optionally containing a glycol ether. In another broad respect, this invention is a process for removing paint, comprising: applying a composition containing dialkyl carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: December 19, 2000
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Edward T. Marquis, Robert E. Baldwin
  • Patent number: 6159915
    Abstract: A composition useful as a paint remover. The composition may include a carbonate, a dibasic ester and a mono-ester. The composition may also contain an organic sulfur-containing compound such as dimethyl sulfoxide (DMSO), a glycol ether, a ketone, or combination thereof. The composition may be used in a process for removing paint by applying it to a painted surface. The compositions have several important attributes, including low toxicity and high efficacy in removing paint and coatings.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: December 12, 2000
    Assignee: Huntsman Petrochemical Corporation
    Inventors: James R. Machac, Jr., Edward T. Marquis, Susan A. Woodrum, Katty Darragas
  • Patent number: 6156160
    Abstract: This invention concerns a process to provide high purity alkylene carbonate though use of multiple distillations wherein the unused fractions are recycled to the reactor.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: December 5, 2000
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Edward T. Marquis, Mercy Mathai Varghese
  • Patent number: 6060625
    Abstract: A process for the alkoxylation of a polyetheramine to form an etheramine alkoxylate. In the process, a polyetheramine is reacted with an alkylene oxide in the presence of an alcohol to form the etheramine alkoxylate. The alcohol serves as a catalyst to allow the reaction proceed at a heightened temperature as compared to the reaction in the absence of alcohol, while at the same time limiting the amount of glycol by-product production which would otherwise typically form when higher polyetheramines are to be alkoxylated. The alcohol may be, for instance, ethanol or methanol.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: May 9, 2000
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Wei-Yang Su, Mike W. McKinney, Timothy L. Lambert, Edward T. Marquis
  • Patent number: 6040284
    Abstract: This invention concerns a composition useful as a paint remover, comprising: alkylene carbonate such as propylene carbonate or ethylene carbonate, hydrogen peroxide, and water, and optionally an alcohol such as benzyl alcohol. In another broad respect, this invention concerns a process for removing paint, comprising: applying a composition containing alkylene carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint. In another broad respect, this invention is a composition useful as a paint remover, comprising: dialkyl carbonate, hydrogen peroxide, and water, optionally containing an alcohol, optionally containing a glycol ether. In another broad respect, this invention is a process for removing paint, comprising: applying a composition containing dialkyl carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: March 21, 2000
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Edward T. Marquis, Robert E. Baldwin
  • Patent number: 6015550
    Abstract: This invention concerns a method useful for reducing odor where odoriferous amine-containing compound is present, comprising: applying an alkylene carbonate to a source of the amine-containing compound under conditions such that the alkylene carbonate forms a reaction product with odoriferous amine-containing compounds such that odor is reduced. Sources of such amine-containing compounds include chicken coops, dumps, land fills, cat litter, stagnant water, water treatment ponds and plants, garbage cans and dumpsters, dog kennels, zoos, rendering plants food processing plants, slaughter houses, wool plants, fish canneries (cleaning and processing plants), underground sewers, paper mills, paper processing, outhouses and toilets that have no running water, and public restrooms.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: January 18, 2000
    Assignee: Huntsman Petrochemical Corporation
    Inventor: Edward T. Marquis
  • Patent number: 5962699
    Abstract: A process for decolorizing organic carbonates, for example, cyclic alkylene carbonates, which involves contacting a discolored organic carbonate with hydrogen peroxide, is disclosed.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: October 5, 1999
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Edward T. Marquis, Robert E. Baldwin
  • Patent number: 5912382
    Abstract: High purity hydroxyalkyl carbamates having alkyl groups with two, or three or more carbon atoms may be produced from anhydrous ammonia and alkylene carbonates at relatively low pressures, such as in a low pressure conventional kettle process. In this method, a reactor vessel is typically evacuated prior to reaction and anhydrous ammonia and alkylene carbonates are typically reacted in the presence of an initiator. Using this method, hydroxypropyl carbamate products having a purity greater than about 97%, and hydroxybutyl carbamate products having a purity greater than about 95% may be produced. Hydroxybutyl carbamate compositions comprising mixtures of 2-hydroxylbutyl carbamate and 1-hydroxymethyl propyl carbamate may also be produced.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: June 15, 1999
    Assignee: Huntsman Pertochemical Corporation
    Inventors: Edward T. Marquis, Chris E. Godinich, Robert E. Baldwin
  • Patent number: 5798412
    Abstract: A process in which carbon is used to catalyze production of alkylene glycols from alkylene oxides and water. Using this process, carbon may be employed to selectively catalyze the hydrolysis of alkylene oxides, such as ethylene oxide, to monoalkylene gylcols, such as monoethylene glycol. Typically, activated carbon is employed. Suitable forms of activated carbon or other carbon material include powders, granulates, extruded shapes, or mixtures thereof. The process may be carried out as a continuous or batch reaction process.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: August 25, 1998
    Assignee: Huntsman Petrochemical Corporation
    Inventors: John R. Sanderson, Edward T. Marquis
  • Patent number: 5488179
    Abstract: Disclosed is a method of selective preparation of ditertiary butyl peroxide from tertiary butyl hydroperoxide and t-butanol which comprises reacting said tertiary butyl hydroperoxide and t-butanol over a Beta-zeolite catalyst under hydroperoxide conversion conditions.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: January 30, 1996
    Assignee: Texaco Chemical Inc.
    Inventors: John F. Knifton, Edward T. Marquis, Pei-Shing E. Dai
  • Patent number: 5488178
    Abstract: Disclosed is a method of selective preparation of ditertiary butyl peroxide from tertiary butyl hydroperoxide and t-butanol which comprises reacting said tertiary butyl hydroperoxide and t-butanol over a solid acid catalyst selected from:a) an acidic montmorillonite clay;b) an acidic zeolite selected from the group consisting of dealuminized Y-zeolite and pentasil zeolite;c) an acidic organic resin; andd) heteropoly acids supported on an oxide selected from Group III or Group IV.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: January 30, 1996
    Assignee: Texaco Chemical Inc.
    Inventors: John F. Knifton, Edward T. Marquis, Pei-Shing E. Dai
  • Patent number: 5414163
    Abstract: A method for preparing tertiary butyl alcohol wherein a feedstock comprising a solvent solution of tertiary butyl hydroperoxide in tertiary butyl alcohol or a mixture of tertiary butyl alcohol with isobutane is charged to a hydroperoxide decomposition reaction zone containing a catalytically effective amount of a hydroperoxide decomposition catalyst consisting essentially of titania or zirconia and is brought into contact with the catalyst in liquid phase under hydroperoxide decomposition reaction conditions to convert the tertiary butyl hydroperoxide to decomposition products, principally tertiary butyl alcohol.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: May 9, 1995
    Assignee: Texaco Chemical Inc.
    Inventors: John R. Sanderson, John F. Knifton, Edward T. Marquis
  • Patent number: 5405977
    Abstract: A method for removing organic halide contaminants from alkylene carbonates is disclosed. Organic halide contaminants are removed from alkylene carbonates by contacting the contaminated alkylene carbonate with hydrotalcite.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: April 11, 1995
    Assignee: Huntsman Corporation
    Inventors: Michael Cuscurida, Edward T. Marquis
  • Patent number: 5348712
    Abstract: It has been discovered that relatively large cyclic and open chain carbonates are extremely efficient in the selective extraction of metal ions, such as gold, silver, platinum and mercury from aqueous solution without the need for a potentially hazardous, organic solvent or use of a corrosive salt, such as NaCl. For example, 1,2-decane carbonate extracted >99.9% mercury, 99.76% gold, 97.5% silver and 79.0% platinum. The homologous 1,2-dodecane carbonate was found to extract 99.9% gold and silver from aqueous solution and 95.8% platinum. Didecyl carbonate extracted 77% gold from aqueous solution. The method of this invention is simpler than prior techniques and eliminates the need for potentially hazardous solvents (toxic, flammable and environmentally unfavorable) and corrosive additives, such as salt, NaCl, used as a salting agent in prior methods.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: September 20, 1994
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, Martin J. Plishka
  • Patent number: 5340889
    Abstract: Liquid hydroxyurethane products having cyclocarbonate end groups are prepared by reacting a molar excess of a bis-carbonate of a bis-glycidyl ether of neopentyl glycol or 1,4-cyclohexanedimethanol with a polyoxyalkylenediamine such as a polyoxypropylenediamine. These products are useful for the preparation of polyurethanes, polyurethane polyols, polyester polyurethane polyols, and polycarbonate polyurethane polyols.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: August 23, 1994
    Assignee: Texaco Chemical Company
    Inventors: Wheeler C. Crawford, Edward T. Marquis, Howard P. Klein
  • Patent number: 5336315
    Abstract: This invention is concerned with a soil stabilization process in which soil particles comprising the soil surfaces to be stabilized are contacted or treated with an aqueous solution of an alkali metal silicate, such as sodium silicate, and a carbonate reactant or gelling agent selected from the group consisting of an alkylene carbonate, such as ethylene carbonate, a polyester polycarbonate and mixtures thereof. This invention also relates to soil stabilized by admixture with (1) an aqueous solution of an alkali metal silicate and (2) the carbonate reactant.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: August 9, 1994
    Assignee: Texaco Chemical Company
    Inventors: Michael Cuscurida, Edward T. Marquis, Wheeler C. Crawford
  • Patent number: 5336790
    Abstract: A process for recovery of molybdenum from residual fractions derived from an epoxidation reaction of propylene with tertiary butyl hydroperoxide in liquid phase with tertiary butyl alcohol, in the presence of soluble molybdenum, which process comprises:Fractionating epoxidation reaction product for obtaining a liquid fraction containing essentially all molybdenum from the reaction product;Contacting the liquid fraction with anhydrous ammonia for forming a precipitate containing the major portion of the molybdenum and a liquid phase containing 500 ppm or less molybdenum;Separating the liquid phase from the precipitated solid;Evaporating the liquid phase under conditions of elevated temperatures and reduced pressure in the presence of 1 to 3% water for separation into an evaporator overhead vapor essentially free of molybdenum and an evaporator concentrate comprising essentially all of the molybdenum fed to the evaporator;Rapidly cooling evaporator concentrate from about evaporation temperature to about room te
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: August 9, 1994
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, Howard F. Payton, Robert A. Meyer
  • Patent number: 5298081
    Abstract: A process for the dissolution of cured polyester resins is disclosed. A cured polyester resin may be dissolved, or removed from a substrate, by contacting the polyester resin with an alkylene carbonate, alone or as a co-solvent with one or more other solvents in which the cured polyester resin is at least partially soluble.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: March 29, 1994
    Assignee: Texaco Chemical Company
    Inventor: Edward T. Marquis
  • Patent number: 5290527
    Abstract: A process for recovery of molybdenum from residual fractions derived from an epoxidation reaction of propylene with tertiary butyl hydroperoxide in liquid phase with tertiary butyl alcohol, in the presence of soluble molybdenum, which process comprises:Fractionating epoxidation reaction product for obtaining a liquid fraction containing essentially all molybdenum from the reaction product;Contacting the liquid fraction with anhydrous ammonia for forming a precipitate containing the major portion of the molybdenum and a liquid phase containing 500 ppm or less molybdenum;Separating the liquid phase from the precipitated solid;Evaporating the liquid phase under conditions of elevated temperatures and reduced pressure in the presence of 1 to 3% water for separation into an evaporator overhead vapor essentially free of molybdenum and an evaporator concentrate comprising essentially all of the molybdenum fed to the evaporator;Rapidly cooling evaporator concentrate from about evaporation temperature to about room te
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: March 1, 1994
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, Howard F. Payton, Robert A. Meyer