Patents by Inventor David G. Barton

David G. Barton 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).

  • Publication number: 20260092027
    Abstract: A process for producing an ether including treating (a) an ester with (b) hydrogen in the presence of (c) a heterogeneous catalyst to reduce the ester by hydrogenation to form an ether product, wherein the heterogeneous catalyst comprises platinum and ruthenium deposited on a zeolite support.
    Type: Application
    Filed: October 11, 2023
    Publication date: April 2, 2026
    Inventors: Jing Luo, Xue Chen, David G. Barton, David W. Flaherty, Claudia Eugenia Berdugo-diaz, Yangsik Yun, Jieun Lee
  • Patent number: 12522551
    Abstract: A process for producing an ether including treating (a) an ester with (b) hydrogen in the presence of (c) a heterogeneous catalyst to reduce the ester by hydrogenation to form an ether product.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: January 13, 2026
    Assignees: Dow Global Technologies LLC, Board of Trustees of the University of Illinois
    Inventors: David W. Flaherty, David G. Barton, Xue Chen, Claudia Eugenia Berdugo-diaz, Jing Luo, Yangsik Yun
  • Patent number: 12297358
    Abstract: The present invention is a composition comprising an aqueous dispersion of metal oxide pigment particles coated with an organosilane polymer comprising structural units of an alkyltrihydroxysilane or a salt thereof, a dialkyldihydroxysilane or a salt thereof, and an ancillary alkylsilane triol. The composition of the present invention provides hydrophobicity to pigment particles, thereby imparting water resistance, and allows for high loadings of pigment in water without increased viscosity. The dispersion is further useful for providing stain and corrosion resistance in coatings arising from paints.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: May 13, 2025
    Assignees: The Regents of the University of California, Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: David G. Barton, James C. Bohling, Juan F. Callejas, Amrita Chakravarty, Alexander Katz, Manish K. Mishra, Clayton J. Radke, Antony K. Van Dyk
  • Publication number: 20240286985
    Abstract: A process for producing an ether including treating (a) an ester with (b) hydrogen in the presence of (c) a heterogeneous catalyst to reduce the ester by hydrogenation to form an ether product, wherein the heterogeneous catalyst comprises a transition metal deposited on a sulfonic acid functionalized SiO2 support.
    Type: Application
    Filed: November 2, 2022
    Publication date: August 29, 2024
    Inventors: Jing Luo, Xue Chen, David G. Barton, David W. Flaherty, Claudia Eugenia Berdugo-diaz, Yangsik Yun
  • Publication number: 20240286988
    Abstract: The present invention relates generally to gas phase processes for producing carboxylic acids or alkyl esters. In one embodiment, a gas phase process for producing a carboxylic acid or an alkyl ester comprises (a) providing a catalyst support comprising deposits of cobalt thiocyanate on at least a portion of the catalyst support; (b) heating the catalyst support to convert the cobalt thiocyanate on the support to cobalt sulfide to form a supported cobalt sulfide catalyst; and (c) reacting alkene gas, steam or an alkanol gas, and a carbon-containing gas in the presence of the supported cobalt sulfide catalyst in a reactor to form a product stream, wherein the carbon-containing gas comprises carbon monoxide or a mixture of carbon monoxide and carbon dioxide, wherein when steam is used as a reactant, the product stream comprises a carboxylic acid, and wherein when alkanol gas is used as a reactant, the product stream comprises an alkyl ester.
    Type: Application
    Filed: June 2, 2022
    Publication date: August 29, 2024
    Inventors: Alexey Kirilin, Beata A. Kilos, Wen -Sheng Lee, David G. Barton
  • Publication number: 20240279147
    Abstract: A process for producing an ether including treating (a) an ester with (b) hydrogen in the presence of (c) a heterogeneous catalyst to reduce the ester by hydrogenation to form an ether product, wherein the heterogeneous catalyst comprises a transition metal deposited on a zeolite support.
    Type: Application
    Filed: November 2, 2022
    Publication date: August 22, 2024
    Inventors: Jing Luo, Xue Chen, David G. Barton, David W. Flaherty, Claudia Eugenia Berdugo-Diaz, Yangsik Yun, Jieun Lee
  • Publication number: 20230265032
    Abstract: A process for producing an ether including treating (a) an ester with (b) hydrogen in the presence of (c) a heterogeneous catalyst to reduce the ester by hydrogenation to form an ether product.
    Type: Application
    Filed: October 4, 2021
    Publication date: August 24, 2023
    Inventors: David W. Flaherty, David G. Barton, Xue Chen, Claudia Eugenia Berdugo-diaz, Jing Luo, Yangsik Yun
  • Publication number: 20230173444
    Abstract: The present invention generally relates to processes for reducing the rate of pressure drop increase in a vessel used for hydrogenation of aldehydes to alcohols. In one embodiment, the process comprises replacing a first set of catalyst pellets with a second set of catalyst pellets, wherein the second set of catalyst pellets have a higher average aspect ratio than the first set of catalyst pellets, a different shape than the first set of catalyst pellets, or a combination thereof, and wherein a void fraction of the second set of catalyst pellets is greater than the void fraction of the first set of catalyst pellets, wherein a pressure drop rate increase of the vessel partially filled with the second set of catalyst pellets is less than a pressure drop rate increase of the vessel partially filled with the first set of catalyst pellets when operated under substantially similar conditions.
    Type: Application
    Filed: June 2, 2021
    Publication date: June 8, 2023
    Inventors: Daniel Grohol, David G. Barton
  • Publication number: 20220363908
    Abstract: The present invention is a composition comprising an aqueous dispersion of metal oxide pigment particles coated with an organosilane polymer comprising structural units of an alkyltrihydroxysilane or a salt thereof, a dialkyldihydroxysilane or a salt thereof, and an ancillary alkylsilane triol. The composition of the present invention provides hydrophobicity to pigment particles, thereby imparting water resistance, and allows for high loadings of pigment in water without increased viscosity. The dispersion is further useful for providing stain and corrosion resistance in coatings arising from paints.
    Type: Application
    Filed: October 1, 2020
    Publication date: November 17, 2022
    Inventors: David G. Barton, James C. Bohling, Juan F. Callejas, Amrita Chakravarty, Alexander Katz, Manish K. Mishra, Clayton J. Radke, Antony K. Van Dyk
  • Patent number: 10144693
    Abstract: Carboxylic acids are prepared by a one-step gas phase process comprising the step of contacting under halogen-free hydroxycarbonylation conditions an alkene, carbon monoxide, water, and a solid sulfide-containing catalyst.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: December 4, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: David G. Barton, Gerolamo Budroni, Steven L. F. Corthals
  • Patent number: 9938226
    Abstract: Alkyl alkanoates, e.g., methyl propionate, are made by a gas phase process comprising the step of contacting under carbonylation conditions an alkene (e.g., ethylene), carbon monoxide, an alkanol (e.g., methanol), and a solid sulfide-based metal catalyst (e.g., iron sulfide). The alkyl alkanoate can be converted in a second step to an alkyl ester of an aliphatic carboxylic acid, e.g., methyl methacrylate, through condensation with an aldehyde, e.g., formaldehyde.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: April 10, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: David G. Barton, Gerolamo Budroni, Steven L. F. Corthals
  • Publication number: 20170313642
    Abstract: Carboxylic acids are prepared by a one-step gas phase process comprising the step of contacting under halogen-free hydroxycarbonylation conditions an alkene, carbon monoxide, water, and a solid sulfide-containing catalyst.
    Type: Application
    Filed: October 6, 2015
    Publication date: November 2, 2017
    Inventors: David G. Barton, Gerolamo Budroni, Steven L.F. Corthals
  • Publication number: 20170015609
    Abstract: A catalyst support for manufacturing a mixture of alcohols from synthesis gas comprises a combination of nickel, molybdenum, at least one metal selected from the group consisting of palladium, ruthenium, chromium, gold, zirconium, and aluminum, and at least one of an alkali metal or alkaline earth series metal as a promoter. The catalyst may be used in a process for converting synthesis gas wherein the primary product is a mixture of ethanol (EtOH), propanol (PrOH), and butanol (BuOH), optionally in conjunction with higher alcohols.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 19, 2017
    Inventors: Dean M. Millar, Mark H. McAdon, Robert J. Gulotty, JR., David G. Barton, Daniela Ferrari, Billy Brian Bardin, Yu Liu
  • Patent number: 9463445
    Abstract: Provided is a process for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a halogenated rare earth element oxide catalyst, providing a reaction vessel having loaded therein a rare earth element oxide; halogenating the rare earth element oxide with a halogen source to form an activated catalyst; and dehydrating an aromatic alcohol compound over the activated catalyst to form the diaryl ether compound, where the halogenating and dehydrating steps occur in the same vessel. The rare earth element oxide is an oxide of a light rare earth element, an oxide of a medium rare earth element, an oxide of a heavy rare earth element, an oxide of yttrium, or a mixture of two or more thereof.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 11, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: David G. Barton, Adam Chojecki, Paul R. Elowe, Beata A. Kilos, Adam S. Cieszlak
  • Patent number: 9452420
    Abstract: Provided is a process for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a dehydration catalyst. The dehydration catalyst is an oxide of a medium rare earth element, wherein the medium rare earth element is samarium, europium, gadolinium, or mixtures thereof.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: September 27, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: David G. Barton, Adam Chojecki, Paul R. Elowe, Beata A. Kilos
  • Patent number: 9433742
    Abstract: A vaporizer filler includes a fill port. The fill port defines an open interior. The open interior is configured to receive the nozzle of an anesthetic bottle. An agent reservoir is configured to receive and store anesthetic agent. A valve is disposed between the open interior and the agent reservoir. At least one vent extends through the fill port. A method of filling a vaporizer includes inserting the nozzle of a bottle filled with anesthetic agent into a vaporizer filler. At least one vent is occluded from fluid communication. Fluid communication between and open interior and an agent reservoir is opened. Anesthetic agent is poured into an agent reservoir of a vaporizer. Fluid communication is closed between the open interior and the agent reservoir. At least one vent is opened to fluid communication with the open interior. Pressure within the open interior is released through the at least one vent.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: September 6, 2016
    Assignee: General Electric Company
    Inventors: Russell C. Manzke, Thomas Bender, II, David G. Barton, Michael S. Morrissey, Robert Q. Tham
  • Patent number: 9415375
    Abstract: Catalyst compositions for producing mixed alcohols from a synthesis gas feed. The catalyst composition comprises a catalytic metal combination on a catalyst support, a first optional promoter and a second optional promoter, where the catalytic metal combination consists essentially of iridium, vanadium, and molybdenum.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: August 16, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Daniela Ferrari, Neelesh J. Rane, Adam Chojecki, Gerolamo Budroni, David G. Barton, Mark H. McAdon, Robert J. Gulotty, Jr., Dean M. Millar, Palanichamy Manikandan
  • Publication number: 20160229788
    Abstract: Alkyl alkanoates, e.g., methyl propionate, are made by a gas phase process comprising the step of contacting under carbonylation conditions an alkene (e.g., ethylene), carbon monoxide, an alkanol (e.g., methanol), and a solid sulfide-based metal catalyst (e.g., iron sulfide). The alkyl alkanoate can be converted in a second step to an alkyl ester of an aliphatic carboxylic acid, e.g., methyl methacrylate, through condensation with an aldehyde, e.g., formaldehyde.
    Type: Application
    Filed: September 11, 2014
    Publication date: August 11, 2016
    Inventors: David G. Barton, Gerolamo Budroni, Steven L.F. Corthals
  • Publication number: 20160096792
    Abstract: Provided is a method for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a halogenated rare earth element oxide catalyst, wherein the used dehydration catalyst may be regenerated by a halogenation step. The rare earth element oxide is an oxide of a light rare earth element, an oxide of a medium rare earth element, an oxide of a heavy rare earth element, an oxide of yttrium, or a mixtures of two or more thereof.
    Type: Application
    Filed: June 9, 2014
    Publication date: April 7, 2016
    Inventors: Paul R. Elowe, David G. Barton, Adam Chojecki, Beata A. Kilos, Dennis W. Jewell, Adam S. Cieszlak, Bruce D. Hook
  • Publication number: 20150375214
    Abstract: Provided is a process for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a halogenated rare earth element oxide catalyst, providing a reaction vessel having loaded therein a rare earth element oxide; halogenating the rare earth element oxide with a halogen source to form an activated catalyst; and dehydrating an aromatic alcohol compound over the activated catalyst to form the diaryl ether compound, where the halogenating and dehydrating steps occur in the same vessel. The rare earth element oxide is an oxide of a light rare earth element, an oxide of a medium rare earth element, an oxide of a heavy rare earth element, an oxide of yttrium, or a mixture of two or more thereof.
    Type: Application
    Filed: March 13, 2014
    Publication date: December 31, 2015
    Inventors: David G. Barton, Adam Chojecki, Paul R. Elowe, Beata A. Kilos, Adam S. Cieszlak