Patents by Inventor Qingmei Chen

Qingmei Chen 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: 10774431
    Abstract: An anion-conducting polymeric membrane comprises vinylbenzyl-Rs and a substituted ethene. Rs is a positively charged cyclic amine group. The total weight of the vinylbenzyl-Rs groups is greater than 15% of the total weight of the membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.
    Type: Grant
    Filed: November 12, 2017
    Date of Patent: September 15, 2020
    Assignee: Dioxide Materials, Inc.
    Inventors: Richard I. Masel, Syed Dawar Sajjad, Qingmei Chen
  • Patent number: 10647652
    Abstract: A process for the production of organic acids having at least three carbon atoms comprises the steps of forming an amount of carbon monoxide and reacting the amount of carbon monoxide with an amount of an unsaturated hydrocarbon. The reaction is preferably carried out in the presence of a supported palladium catalyst, a strong acid, and a phosphine. In some embodiments, the unsaturated hydrocarbon is one of acetylene and methylacetylene, and the organic acid is one of acrylic acid and methyl acrylic acid. The reacting step is preferably performed with carbon monoxide produced from carbon dioxide.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: May 12, 2020
    Assignee: Dioxide Materials, Inc.
    Inventors: Richard I. Masel, Zheng Richard Ni, Qingmei Chen, Brian A. Rosen
  • Publication number: 20200030787
    Abstract: An anion-conducting polymeric membrane comprises vinylbenzyl-Rs vinylbenzyl-Rx and styrene-Rt. Rs is a positively charged amine or phosphine group. The total weight of the vinylbenzyl-Rs groups is greater than 15% of the total weight of the membrane.
    Type: Application
    Filed: August 27, 2019
    Publication date: January 30, 2020
    Inventors: Richard I. Masel, Syed Dawar Sajjad, Qingmei Chen, Zengcai Liu
  • Publication number: 20190135726
    Abstract: A process for the production of organic acids having at least three carbon atoms comprises the steps of forming an amount of carbon monoxide and reacting the amount of carbon monoxide with an amount of an unsaturated hydrocarbon. The reaction is preferably carried out in the presence of a supported palladium catalyst, a strong acid, and a phosphine. In some embodiments, the unsaturated hydrocarbon is one of acetylene and methylacetylene, and the organic acid is one of acrylic acid and methyl acrylic acid. The reacting step is preferably performed with carbon monoxide produced from carbon dioxide.
    Type: Application
    Filed: August 21, 2018
    Publication date: May 9, 2019
    Inventors: Richard I. Masel, Zheng Richard Ni, Qingmei Chen, Brian A. Rosen
  • Publication number: 20180171495
    Abstract: An anion-conducting polymeric membrane comprises vinylbenzyl-Rs and a substituted ethene. Rs is a positively charged cyclic amine group. The total weight of the vinylbenzyl-Rs groups is greater than 15% of the total weight of the membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.
    Type: Application
    Filed: November 12, 2017
    Publication date: June 21, 2018
    Inventors: Richard I. Masel, Syed Dawar Sajjad, Qingmei Chen
  • Publication number: 20180057439
    Abstract: A process for the production of organic acids having at least three carbon atoms comprises the steps of forming an amount of carbon monoxide and reacting the amount of carbon monoxide with an amount of an unsaturated hydrocarbon. The reaction is preferably carried out in the presence of a supported palladium catalyst, a strong acid, and a phosphine. In some embodiments, the unsaturated hydrocarbon is one of acetylene and methylacetylene, and the organic acid is one of acrylic acid and methyl acrylic acid. The reacting step is preferably performed with carbon monoxide produced from carbon dioxide.
    Type: Application
    Filed: August 22, 2017
    Publication date: March 1, 2018
    Inventors: Richard I. Masel, Zheng Richard Ni, Qingmei Chen, Brian A. Rosen
  • Patent number: 9849450
    Abstract: An anion-conducting polymeric membrane comprises a terpolymer of styrene, vinylbenzyl-Rs and vinylbenzyl-Rx. Rs is a positively charged cyclic amine group. Rx is at least one constituent selected from the group consisting Cl, OH and a reaction product between an OH or Cl and a species other than a simple amine or a cyclic amine. The total weight of the vinylbenzyl-Rx groups is greater than 0.3% of the total weight of the membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: December 26, 2017
    Assignee: Dioxide Materials, Inc.
    Inventors: Richard I. Masel, Syed Dawar Sajjad, Yan Gao, Zengcai Liu, Qingmei Chen
  • Patent number: 9790161
    Abstract: A process for the production of organic acids having at least three carbon atoms comprises the steps of forming an amount of carbon monoxide and reacting the amount of carbon monoxide with an amount of an unsaturated hydrocarbon. The reaction is preferably carried out in the presence of a supported palladium catalyst, a strong acid, and a phosphine. In some embodiments, the unsaturated hydrocarbon is one of acetylene and methylacetylene, and the organic acid is one of acrylic acid and methyl acrylic acid. The reacting step is preferably performed with carbon monoxide produced from carbon dioxide.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 17, 2017
    Inventors: Richard I. Masel, Zheng Richard Ni, Qingmei Chen, Brian A. Rosen
  • Publication number: 20170128930
    Abstract: An anion-conducting polymeric membrane comprises a terpolymer of styrene, vinylbenzyl-Rs and vinylbenzyl-Rx. Rs is a positively charged cyclic amine group. Rx is at least one constituent selected from the group consisting Cl, OH and a reaction product between an OH or Cl and a species other than a simple amine or a cyclic amine. The total weight of the vinylbenzyl-Rx groups is greater than 0.3% of the total weight of the membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.
    Type: Application
    Filed: January 6, 2017
    Publication date: May 11, 2017
    Inventors: Richard I. Masel, Syed Dawar Sajjad, Yan Gao, Zengcai Liu, Qingmei Chen
  • Patent number: 9580824
    Abstract: An ion conducting polymeric composition mixture comprises a copolymer of styrene and vinylbenzyl-Rs. Rs is selected from the group consisting of imidazoliums, pyridiniums, pyrazoliums, pyrrolidiniums, pyrroliums, pyrimidiums, piperidiniums, indoliums, and triaziniums. The composition contains 10%-90% by weight of vinylbenzyl-Rs. The composition can further comprise a polyolefin comprising substituted polyolefins, a polymer comprising cyclic amine groups, a polymer comprising at least one of a phenylene group and a phenyl group, a polyamide, and/or the reaction product of a constituent having two carbon-carbon double bonds. The composition can be in the form of a membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: February 28, 2017
    Assignee: Dioxide Materials, Inc.
    Inventors: Richard I. Masel, Qingmei Chen, Zengcai Liu, Robert Kutz
  • Patent number: 9481939
    Abstract: An electrochemical device converts carbon dioxide to a reaction product. The device includes an anode and a cathode, each comprising a quantity of catalyst. The anode and cathode each has reactant introduced thereto. A polymer electrolyte membrane is interposed between the anode and the cathode. At least a portion of the cathode catalyst is directly exposed to gaseous carbon dioxide during electrolysis. The average current density at the membrane is at least 20 mA/cm2, measured as the area of the cathode gas diffusion layer that is covered by catalyst, and CO selectivity is at least 50% at a cell potential of 3.0 V. In some embodiments, the polymer electrolyte membrane comprises a polymer in which a constituent monomer is (p-vinylbenzyl)-R, where R is selected from the group consisting of imidazoliums, pyridiniums and phosphoniums. In some embodiments, the polymer electrolyte membrane is a Helper Membrane comprising a polymer containing an imidazolium ligand, a pyridinium ligand, or a phosphonium ligand.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: November 1, 2016
    Assignee: Dioxide Materials, Inc.
    Inventors: Richard I. Masel, Qingmei Chen, Zengcai Liu, Robert Kutz
  • Publication number: 20160251766
    Abstract: An ion conducting polymeric composition mixture comprises a copolymer of styrene and vinylbenzyl-Rs. Rs is selected from the group consisting of imidazoliums, pyridiniums, pyrazoliums, pyrrolidiniums, pyrroliums, pyrimidiums, piperidiniums, indoliums, and triaziniums. The composition contains 10%-90% by weight of vinylbenzyl-Rs. The composition can further comprise a polyolefin comprising substituted polyolefins, a polymer comprising cyclic amine groups, a polymer comprising at least one of a phenylene group and a phenyl group, a polyamide, and/or the reaction product of a constituent having two carbon-carbon double bonds. The composition can be in the form of a membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.
    Type: Application
    Filed: April 4, 2016
    Publication date: September 1, 2016
    Inventors: Richard I. Masel, Qingmei Chen, Zengcai Liu, Robert Kutz
  • Publication number: 20160207866
    Abstract: A process for the production of organic acids having at least three carbon atoms comprises the steps of forming an amount of carbon monoxide and reacting the amount of carbon monoxide with an amount of an unsaturated hydrocarbon. The reaction is preferably carried out in the presence of a supported palladium catalyst, a strong acid, and a phosphine. In some embodiments, the unsaturated hydrocarbon is one of acetylene and methylacetylene, and the organic acid is one of acrylic acid and methyl acrylic acid. The reacting step is preferably performed with carbon monoxide produced from carbon dioxide.
    Type: Application
    Filed: November 20, 2015
    Publication date: July 21, 2016
    Inventors: Richard I. Masel, Zheng Richard Ni, Qingmei Chen, Brian A. Rosen
  • Patent number: 9370773
    Abstract: An ion conducting polymeric composition mixture comprises a copolymer of styrene and vinylbenzyl-Rs. Rs is selected from the group consisting of imidazoliums and pyridiniums. The composition contains 10%-90% by weight of vinylbenzyl-Rs. The composition can further comprise a polyolefin comprising substituted polyolefins, a polymer comprising cyclic amine groups, a polymer comprising at least one of a phenylene group and a phenyl group, a polyamide, and/or the reaction product of a constituent having two carbon-carbon double bonds. The composition can be in the form of a membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: June 21, 2016
    Assignee: Dioxide Materials, Inc.
    Inventors: Richard L. Masel, Qingmei Chen, Zengcai Liu, Robert Kutz
  • Publication number: 20160107154
    Abstract: An ion conducting polymeric composition mixture comprises a copolymer of styrene and vinylbenzyl-Rs. Rs is selected from the group consisting of imidazoliums and pyridiniums. The composition contains 10%-90% by weight of vinylbenzyl-Rs. The composition can further comprise a polyolefin comprising substituted polyolefins, a polymer comprising cyclic amine groups, a polymer comprising at least one of a phenylene group and a phenyl group, a polyamide, and/or the reaction product of a constituent having two carbon-carbon double bonds. The composition can be in the form of a membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.
    Type: Application
    Filed: May 5, 2015
    Publication date: April 21, 2016
    Inventors: Richard I. Masel, Qingmei Chen, Zengcai Liu, Robert Kutz
  • Publication number: 20160108530
    Abstract: An electrochemical device converts carbon dioxide to a reaction product. The device includes an anode and a cathode, each comprising a quantity of catalyst. The anode and cathode each has reactant introduced thereto. A polymer electrolyte membrane is interposed between the anode and the cathode. At least a portion of the cathode catalyst is directly exposed to gaseous carbon dioxide during electrolysis. The average current density at the membrane is at least 20 mA/cm2, measured as the area of the cathode gas diffusion layer that is covered by catalyst, and CO selectivity is at least 50% at a cell potential of 3.0 V. In some embodiments, the polymer electrolyte membrane comprises a polymer in which a constituent monomer is (p-vinylbenzyl)-R, where R is selected from the group consisting of imidazoliums, pyridiniums and phosphoniums. In some embodiments, the polymer electrolyte membrane is a Helper Membrane comprising a polymer containing an imidazolium ligand, a pyridinium ligand, or a phosphonium ligand.
    Type: Application
    Filed: May 5, 2015
    Publication date: April 21, 2016
    Inventors: Richard I. Masel, Qingmei Chen, Zengcai Liu, Robert Kutz
  • Patent number: 9193593
    Abstract: An environmentally beneficial process for the production of fuels and chemicals employs carbon dioxide from a natural source or from an artificial chemical source that would otherwise be discharged into the environment. The carbon dioxide is converted to formic acid and the formic acid is then non-biologically converted to fuels and/or chemicals without the intermediate process of hydrogenating the formic acid to methanol or reacting the formic acid with ammonia to form formamide. In the present process, formic acid is converted to one of seven primary feedstocks: formaldehyde, acrylic acid, methane, ethylene, propylene, syngas, and C5-C7 carbohydrates. The formaldehyde, acrylic acid, methane, ethylene, propylene, syngas and/or short chain carbohydrates can either be used directly, or can be converted into a wealth of other products.
    Type: Grant
    Filed: February 24, 2013
    Date of Patent: November 24, 2015
    Assignee: Dioxide Materials, Inc.
    Inventors: Richard I. Masel, Zheng Richard Ni, Qingmei Chen, Brian A. Rosen
  • Publication number: 20140239231
    Abstract: An environmentally beneficial process for the production of fuels and chemicals employs carbon dioxide from a natural source or from an artificial chemical source that would otherwise be discharged into the environment. The carbon dioxide is converted to formic acid and the formic acid is then non-biologically converted to fuels and/or chemicals without the intermediate process of hydrogenating the formic acid to methanol or reacting the formic acid with ammonia to form formamide. In the present process, formic acid is converted to one of seven primary feedstocks: formaldehyde, acrylic acid, methane, ethylene, propylene, syngas, and C5-C7 carbohydrates. The formaldehyde, acrylic acid, methane, ethylene, propylene, syngas and/or short chain carbohydrates can either be used directly, or can be converted into a wealth of other products.
    Type: Application
    Filed: February 24, 2013
    Publication date: August 28, 2014
    Applicant: DIOXIDE MATERIALS, INC.
    Inventors: Richard I. Masel, Zheng Richard Ni, Qingmei Chen, Brian A. Rosen
  • Patent number: 8269029
    Abstract: Microwave assisted synthesis may be used to produce water-repellent metallic organic frameworks (MOFs) molecules. The water-repellent MOFs contain non-polar functional groups, such as a trifluoromethoxy group, which has a strong water repellent effect. The water-repellent MOF, when exposed to water vapor for one week does not result in a significant X-ray power pattern change. The water-repellent MOFs may be suitable as an adsorbent in many industrial applications, such as gas chromatography.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: September 18, 2012
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Richard I Masel, Zheng Ni, Qingmei Chen
  • Publication number: 20100075123
    Abstract: Microwave assisted synthesis may be used to produce water-repellent metallic organic frameworks (MOFs) molecules. The water-repellent MOFs contain non-polar functional groups, such as a trifluoromethoxy group, which has a strong water repellent effect. The water-repellent MOF, when exposed to water vapor for one week does not result in a significant X-ray power pattern change. The water-repellent MOFs may be suitable as an adsorbent in many industrial applications, such as gas chromatography.
    Type: Application
    Filed: April 8, 2009
    Publication date: March 25, 2010
    Applicant: University of Illinois - Office of Technology Management
    Inventors: Richard I. MASEL, Zheng NI, Qingmei CHEN