Organic Patents (Class 204/296)
  • Patent number: 10370275
    Abstract: A system includes an ion exchange softener fluidly coupled to a wastewater treatment system. The first ion exchange softener may receive a first brine stream from the wastewater treatment system and to remove a plurality of minerals from the first brine stream to generate a second brine stream including the plurality of minerals and a third brine stream. The system also includes a mineral removal system disposed downstream from the ion exchange softener and that may receive the second brine stream and to generate a sodium chloride (NaCl) brine stream and an acid and caustic production system disposed downstream from and fluidly coupled to the mineral removal system. The acid and caustic production system includes a first electrodialysis (ED) system that may receive the NaCl brine stream from the mineral removal system and to generate hydrochloric acid (HCl) and sodium hydroxide (NaOH) from the NaCl brine stream.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: August 6, 2019
    Assignee: Enviro Water Minerals Company, Inc.
    Inventor: Paul Steven Wallace
  • Patent number: 10349627
    Abstract: A detection device is retained in the rumen of a cow by being orally administered to the cow, and detects the state of the inside of the rumen. The detection device wirelessly transmits measured values of the rumen pH as detection results. A monitoring unit (receiver and monitoring server) acquires information transmitted from the detection device, and monitors the state of the inside of the rumen. The detection device is configured to be recoverable orally from the rumen of the cow. The operating conditions of the detection device are recorded in the detection device ahead of time, and can be updated by means of a wireless signal transmitted from a setting unit to the detection device.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: July 16, 2019
    Inventors: Shigeru Sato, Hitoshi Mizuguchi, Kazunori Ito, Yasuo Okita
  • Patent number: 10300478
    Abstract: The present invention relates to a bipolar ion exchange sheet and a manufacturing method therefor, the bipolar ion exchange sheet comprising: a cation exchange film comprising a cation adsorption sheet and a cation exchange coating layer formed on one side of the cation adsorption sheet; and an anion exchange film comprising an anion adsorption sheet and an anion exchange coating layer formed on one side of the anion adsorption sheet, wherein the cation exchange film and the anion exchange film are bonded so that the cation exchange coating layer and the anion exchange coating layer face each other.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: May 28, 2019
    Assignee: Coway co., Ltd
    Inventors: Sung-Min Moon, Jun-Young Lee, Sun-Beom Choi, Sang-Hyeon Kang, Kyung-Seok Kang, Won-Keun Son
  • Patent number: 10252257
    Abstract: The ion exchange membrane according to the present invention comprises a layer A comprising a fluorine-containing polymer having a sulfonic acid group and a layer B comprising a fluorine-containing polymer having a carboxylic acid group, wherein a ratio of an ion cluster diameter of the layer B after electrolysis under the following electrolysis conditions to the ion cluster diameter of the layer B before the electrolysis [(the ion cluster diameter of the layer B after the electrolysis)/(the ion cluster diameter of the layer B before the electrolysis)] is 0.83 to 0.95: (Electrolysis Conditions) in a zero-gap base electrolytic cell where the ion exchange membrane is disposed between an anode chamber to which a 3.5 N aqueous sodium chloride solution is supplied and a cathode chamber to which a 10.8 N aqueous sodium hydroxide solution is supplied, electrolysis is performed for 7 days under conditions having a temperature of 85° C. and a current density of 6 kA/m2.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: April 9, 2019
    Inventors: Atsushi Nakajima, Naoki Sakamoto, Takuya Morikawa
  • Patent number: 10256494
    Abstract: A solid polymer fuel cell has a plurality of stacked single battery modules having an electrolyte membrane, electrode layers disposed on both surfaces of the electrolyte membrane, and a pair of separators provided with a gas flow paths disposed on the inside surface so as to sandwich the electrode layer. The electrolyte membrane is provided with electrolyte material and a nonwoven fabric which is embedded in the electrolyte material. The nonwoven fabric is provided with a plurality of fused parts that are provided in a linear shape or spotted on a part of the nonwoven fabric that is a part corresponding to of the solid polymer fuel cell. Two or more nonwoven fibers are fused to each other, and the thickness thereof is thinner than the membrane thickness of the unwoven fabric.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: April 9, 2019
    Assignee: Panasonic Intellectual Property Management Co. Ltd.
    Inventors: Masahiro Mori, Shinya Kikuzumi
  • Patent number: 10252223
    Abstract: To make membranes, a plurality of membrane substrates are each wetted with a curable liquid mixture, arranged in a stack such that every pair of substrates are separated by at least one film, and moved simultaneously through a common curing region. Each wetted substrate sheet may be sandwiched between two films. After curing, the stack comprises two or more membranes with each pair of membranes separated by a film. An apparatus for making membranes comprises at least two substrate feeding devices, at least one film feeding device, one or more chemical wetting devices, a curing region, optionally, a stack separating region, and, optionally, a membrane binding or fusing region. Membrane production rate may be increased while the curing energy required per unit area of membrane is decreased. The method can make, for example, ion exchange membranes.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: April 9, 2019
    Assignee: BL Technologies, Inc.
    Inventor: Harikrishnan Ramanan
  • Patent number: 10236527
    Abstract: Provided are a method for preparing a Nafion membrane having a through-pore free monolithic porous structure throughout the bulk of the membrane through a one-step process very easily and a Nafion membrane having a through-pore free monolithic porous structure obtained from the method. The Nafion membrane having such a porous structure may have an increased surface area, and thus may improve the membrane/catalyst interfacial area and transport characteristics.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: March 19, 2019
    Assignee: Korean Institute of Science and Technology
    Inventors: Dirk Henkensmeier, Dickson Joseph, Jong Hyun Jang, Jin Young Kim, Hyoung-Juhn Kim, Jonghee Han, Suk Woo Nam, Sung Pil Yoon
  • Patent number: 10194528
    Abstract: A composite material, a high-frequency circuit baseboard made therefrom and a production method thereof. The composite material comprises: a dispersed emulsion of fluoropolymer with a low dielectric loss; a porous, expanded polytetrafluoroethylene film; and a powdery packing. The high-frequency circuit baseboard made from the composite material comprises: several laminated sheets of prepreg made from the composite material, and copper foils pressed over the two properties sides thereof. The baseboard uses a porous ePTFE film with excellent dielectric as a carrier material, which can lower the dielectric constant and dielectric loss angle tangent of the composite material and high-frequency circuit baseboard. The dielectric constant of the high-frequency circuit baseboard and prepreg is isotropic in both X and Y directions. The thickness of the prepreg can be regulated by employing porous ePTFE films with a different thickness, which avoids cracking.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: January 29, 2019
    Inventor: Minshe Su
  • Patent number: 10135085
    Abstract: A flow battery includes a cell that has a first electrode, a second electrode spaced apart from the first electrode and an electrolyte separator layer arranged between the first electrode and the second electrode. A supply/storage system is external of the at least one cell and includes first and second vessels that are fluidly connected with the at least one cell. First and second fluid electrolytes are located in the supply/storage system. The electrolyte separator layer includes a hydrated ion-exchange membrane of a polymer that has a carbon backbone chain and side chains extending from the carbon backbone chain. The side chains include hydrophilic chemical groups with water molecules attached by secondary bonding to form clusters of water domains. The clusters have an average maximum cluster size no greater than 4 nanometers, with an average number of water molecules per hydrophilic chemical group, ? (lambda), being greater than zero.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: November 20, 2018
    Inventors: Robert Mason Darling, Michael L. Perry, Wei Xie
  • Patent number: 10125036
    Abstract: Provided is an ion exchange membrane including an ionic vinyl alcohol polymer having a cation exchange group or an anion exchange group. The ion exchange membrane 1 includes a porous support 3 and the ionic vinyl alcohol polymer. The porous support is provided, in a thickness direction from one surface thereof, with an impregnated layer 2 at least a part of which is impregnated with the ionic vinyl alcohol polymer. The ionic vinyl alcohol polymer includes an ionic vinyl alcohol polymer having an ion exchange group selected from a cation exchange group or an anion exchange group. The ion exchange membrane has a zeta potential value (?1) at one surface and a zeta potential value (?2) at the other surface, which are represented by the formula (1). (|?1|)?|?2|)/|?1|<0.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 13, 2018
    Inventors: Atsushi Jikihara, Kenichi Kobayashi, Takahiro Nakashima, Mitsuru Higa
  • Patent number: 10093761
    Abstract: Described herein is a composition having a fluoropolymer derived from the polymerization of a monomer and a sulfinate-containing molecule, wherein the sulfinate-containing molecule is selected from the group consisting of Formula (I), Formula (II); and combinations thereof, wherein X1, X2, and X3 are each independently selected from H, F, Cl, a C1 to C4 alkyl group, and a C1 to C4 fluorinated alkyl group; R is a linking group; Z1 and Z2 are independently selected from F, CF3, and a perfluoroalkyl group; R1 and R2 are end-groups; p is 0 or 1; m is at least 1; and M is a cation. Also disclosed are methods of making and articles thereof.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: October 9, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Gregg D. Dahlke, Denis Duchesne, Tatsuo Fukushi, Werner M. Grootaert, Miguel A. Guerra, Harald Kaspar, Larry A. Last, Peter J. Scott, Zai-Ming Qiu
  • Patent number: 9922773
    Abstract: The present invention provides an ionic polymer membrane prepared by irradiating the compound represented by formula 1 and an ionic polymer. The ionic polymer membrane of the present invention has the advantage of excellent processability, low production costs, high ion exchange capacity and high durability. Also, the method for preparing the ionic polymer membrane of the invention not only facilitates the production of the ionic polymer membrane in a 3-dimensional network structure which has high ion exchange capacity and high dimensional stability but also makes it easy to produce membranes in various forms and sizes by using the composition itself as a coating solution with using the commercialized inexpensive ionic polymer without additional high-risk multi-step introduction process of ionic exchange group.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: March 20, 2018
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Chan Hee Jung, Junhwa Shin, In Tae Hwang, Joon Yong Sohn, Chang-Hee Jung
  • Patent number: 9919271
    Abstract: The disclosure relates to efficient methods of controlling biological conversions while simultaneously removing and converting some of the generated products. More specifically, and, for example, the disclosure discloses electrochemical processes to remove and capture potentially toxic ammonium during anaerobic digestions and to remove and capture carboxylic acids during bioethanol production. The disclosure can, thus, be used to enhance bioproduction processes via controlling pH and/or reduction/oxidation, in combination with in situ product recovery.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: March 20, 2018
    Inventors: Korneel Rabaey, Christian Stevens
  • Patent number: 9917331
    Abstract: Provided are a secondary battery having a configuration with which localized metal contaminant precipitation at the negative electrode can be reliably inhibited in less time, and a method for producing a secondary battery that allows reliable deactivation of metal contaminant in less time. The battery comprises a positive electrode, a negative electrode, and a separator placed between the two electrodes. The separator has an air resistance Rp?100 sec in an in-plane direction vertical to its thickness direction and an air resistance Rt>Rp in the thickness direction. The method comprises a minimal charging step where the cell is charged to 0.01% to 0.5% capacity over at least one hour to obtain a state of charge where the positive and negative electrode potentials are at or above the oxidation and reduction potentials of a probable metal contaminant, respectively; and a step of performing initial conditioning charging.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: March 13, 2018
    Inventors: Hisataka Fujimaki, Hiroshi Kawadu
  • Patent number: 9899653
    Abstract: An alkaline storage battery includes a spiral electrode group with a positive plate and a negative plate spirally wound with a separator interposed therebetween. The separator includes a plurality of sulfone group-containing regions. The plurality of sulfone group-containing regions are separated from one another in a winding direction, and disposed to face the positive plate or the negative plate.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: February 20, 2018
    Assignee: GS Yuasa International Ltd.
    Inventors: Manabu Kanemoto, Tadashi Kakeya, Mitsuhiro Kodama
  • Patent number: 9893374
    Abstract: Disclosed is a composite electrolyte membrane comprising a microporous polymer substrate and a sulfonated polymer electrolyte.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: February 13, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Eun Ju Kim, Chong Kyu Shin, Bong Keun Lee, Seong Ho Choi
  • Patent number: 9875853
    Abstract: An electrical storage device includes an electrical storage element and an electrolytic solution. The electrical storage element is formed of an anode body, a cathode body facing the anode body, and a separator interposed between the anode body and the cathode body. The separator includes a separator substrate and a conductive polymer adhering to the separator substrate. The electrical storage element is impregnated with the electrolytic solution. The separator includes a first surface layer having a first surface facing the anode body and a second surface layer having a second surface facing the cathode body. The first surface layer includes a first region that is not provided with the conductive polymer, and the second surface layer includes a second region provided with the conductive polymer.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: January 23, 2018
    Inventors: Daisuke Kubo, Masayuki Takahashi, Yukihiro Shimasaki, Tomoyuki Tashiro, Tatsuji Aoyama
  • Patent number: 9765443
    Abstract: An electroplating processor has a head including a wafer holder, with the head movable to position a wafer in the wafer holder into a vessel holding a first electrolyte and having one or more anodes. A thief electrode assembly may be positioned adjacent to a lower end of the vessel, or below the anode. A thief current channel extends from the thief electrode assembly to a virtual thief position adjacent to the wafer holder. A thief electrode in the thief electrode assembly is positioned within a second electrolyte which is separated from the first electrolyte by a membrane. Alternatively, two membranes may be used with an isolation solution between them. The processor avoids plating metal onto the thief electrode, even when processing redistribution layer and wafer level packaging wafers having high amp-minute electroplating characteristics.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: September 19, 2017
    Assignee: Applied Materials, Inc.
    Inventors: Gregory J. Wilson, Paul R. McHugh
  • Patent number: 9755271
    Abstract: The present disclosure provides a cell and a preparation method thereof. The cell comprises a positive electrode plate (1); a negative electrode plate (2) and a composite solid electrolyte membrane (3) positioned between the positive electrode plate (1) and the negative electrode plate (2). The composite solid electrolyte membrane (3) comprises inorganic solid electrolyte layers (31) and structure supporting layers (32) which are alternately laminated along a laminating direction (D), and has abutted surfaces (S1) respectively abutting against the positive electrode plate (1) and the negative electrode plate (2), an angle between the laminating direction (D) and the abutted surface (S1) is defined as ?, and 0°??<90°.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: September 5, 2017
    Inventors: Xiang Hong, Jiewei Zhang, Kaifu Zhong
  • Patent number: 9738733
    Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing ?-methylstyrene functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: August 22, 2017
    Assignee: Bridgestone Corporation
    Inventors: Zengquan Qin, Yuan-Yong Yan, Xiao-Dong Pan
  • Patent number: 9670586
    Abstract: The present invention provides solid oxide fuel cells, solid oxide electrolyzer cells, solid oxide sensors, components of any of the foregoing, and methods of making and using the same. In some embodiments, a solid oxide fuel cell comprises an air electrode (or cathode), a fuel electrode (or anode), an electrolyte interposed between the air electrode and the fuel electrode, and at least one electrode-electrolyte transition layer. Other embodiments provide novel methods of producing nano-scale films and/or surface modifications comprising one or more metal oxides to form ultra-thin (yet fully-dense) electrolyte layers and electrode coatings. Such layers and coatings may provide greater ionic conductivity and increased operating efficiency, which may lead to lower manufacturing costs, less-expensive materials, lower operating temperatures, smaller-sized fuel cells, electrolyzer cells, and sensors, and a greater number of applications.
    Type: Grant
    Filed: November 30, 2013
    Date of Patent: June 6, 2017
    Assignee: FCET, Inc.
    Inventors: Mark A. Deininger, Leonid V. Budaragin, Paul D. Fisher, Mikhail Pozvonkov, D. Morgan Spears, II
  • Patent number: 9666852
    Abstract: An ionically conductive composite separator for a rechargeable battery and methods for producing the same are provided. The separator may include a bulk material having an anode side and a cathode side and a thickness extending therebetween and a region of aligned particles extending across the bulk material thickness. The aligned particles may be formed as a particle chain and the particles may be formed of a solid electrolyte material. The ionically conductive separator may be formed by providing a plurality of particles within a bulk material and applying an AC electric field to the particles and the bulk material while the bulk material is in a liquid state to align the particles into at least one ionically conductive aligned particle region within the bulk material.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: May 30, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Venkataramani Anandan, Andrew Robert Drews, John Matthew Ginder
  • Patent number: 9627673
    Abstract: An object of the present invention is to provide a secondary battery that is able to inhibit the growth of a dendrite that can generate from an electrode comprising alkali metal and a separator used therein. A secondary battery, comprising: a positive electrode; a negative electrode comprising alkali metal; a separator comprising a layer of tetrafluoroethylene (TFE) polymer or copolymer that reacts with a dendrite of the alkali metal, the separator being hydrophilized at a rate of not less than 10% and not more than 80%; and a layer that does not react with a dendrite of the alkali metal located between the separator and the negative electrode, and a separator used therein.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: April 18, 2017
    Assignee: W. L. Gore & Associates, Co., Ltd.
    Inventor: Kotaro Kobayashi
  • Patent number: 9511327
    Abstract: This disclosure provides water processing apparatuses, systems, and methods for recovering water from wastewater such as urine. The water processing apparatuses, systems, and methods can utilize membrane technology for extracting purified water in a single step. A containment unit can include an ionomer membrane, such as Nafion®, over a hydrophobic microporous membrane, such as polytetrafluoroethylene (PTFE). The containment unit can be filled with wastewater, and the hydrophobic microporous membrane can be impermeable to liquids and solids of the wastewater but permeable to gases and vapors of the wastewater, and the ionomer membrane can be permeable to water vapor but impermeable to one or more contaminants of the gases and vapors. The containment unit can be exposed to a dry purge gas to maintain a water vapor partial pressure differential to drive permeation of the water vapor, and the water vapor can be collected and processed into potable water.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: December 6, 2016
    Assignee: Paragon Space Development Corporation
    Inventors: Taber K. MacCallum, Laura Kelsey
  • Patent number: 9469661
    Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing ?-methylstyrene functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: October 18, 2016
    Assignee: Bridgestone Corporation
    Inventors: Zengquan Qin, Yuan-Yong Yan, Xiao-Dong Pan
  • Patent number: 9457323
    Abstract: A carbon dioxide separation member is disclosed, which includes: a hydrophobic porous membrane that has heat resistance to a temperature of 100° C. or higher; and a polymer compound layer that is formed on a surface of the porous membrane, the polymer compound layer including moisture, and at least one carbon dioxide carrier selected from the group consisting of alkali metal carbonates, alkali metal bicarbonates, and alkali metal hydroxides, and having a cross-linked structure that is formed with a specific single crosslinkable group and includes a specific hydrolysis-resistant bond, wherein the carbon dioxide separation member selectively allows a carbon dioxide gas in a mixture of the carbon dioxide gas and a hydrogen gas to permeate therethrough under temperature conditions of from 100° C. to 250° C.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: October 4, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Yoshihiro Aburaya, Kazuki Yamazaki
  • Patent number: 9379398
    Abstract: Disclosed herein are catalyst degradation detection assemblies and methods of catalyst degradation detection that can be performed in-situ. One embodiment of an in-situ fuel cell catalyst degradation detection assembly comprises a humidified hydrogen supply configured to supply humidified hydrogen to an anode of a fuel cell, a humidified nitrogen supply configured to supply humidified nitrogen to a cathode of the fuel cell, a collection cell containing a liquid, the collection cell configured to receive either cathode exhaust from the fuel cell through a cathode exhaust line or anode exhaust from the fuel cell through an anode exhaust line and means for detecting a gas.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: June 28, 2016
    Assignee: Nissan North America, Inc.
    Inventors: Ellazar V. Niangar, Taehee Han, Nilesh Dale, Kevork Adjemian
  • Patent number: 9359480
    Abstract: Microporous membrane composites that are non-dewetting are disclosed. These microporous membrane composites are wet with solutions of methanol and water and are non-dewetting following autoclave treatment in water. The microporous membrane composites comprise a microporous membrane support that is coated with a crosslinked ionomer comprising hydrophilic groups. Compared to the microporous membrane support, the microporous membrane composite has a flow loss on average in isopropyl alcohol of less than 82%.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: June 7, 2016
    Assignees: Entegris, Inc., Solvay Specialty Polymers Italy S.P.A.
    Inventors: Alketa Gjoka, Ven Anantha Raman, Matthias Gebert, Claudio Oldani, Alessandro Ghielmi
  • Patent number: 9199929
    Abstract: Described herein are allyl ether-terminated fluoroalkylsulfinic acids and salts thereof and methods of making.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: December 1, 2015
    Assignee: 3M Innovative Properties Company
    Inventor: Zai-Ming Qiu
  • Patent number: 9180412
    Abstract: An ultrafine fiber-based composite separator comprising a fibrous porous body which comprises ultrafine metal oxide/polymer composite fibers, or ultrafine metal oxide fibers and a polymer resin coating layer formed on the surface thereof, the ultrafine fibers being continuously randomly arranged and layered, and obtained by electrospinning a metal oxide precursor sol-gel solution or a mixture of a metal oxide precursor sol-gel solution and a polymer resin solution, wherein the surface of the metal oxide/polymer composite fibers has a uniform mixing composition of the metal oxide and the polymer resin, in which the separator has a heat shrinkage rate at 150˜250° C. of 10% or less and does not break down due to melting at a temperature of 200° C. or lower, has low heat shrinkage rate, and superior heat resistance and ionic conductivity, being capable of providing improved cycle and power properties when used in manufacturing a battery.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: November 10, 2015
    Inventors: Seong Mu Jo, Dong Young Kim, Sung-Yeon Jang
  • Patent number: 9133557
    Abstract: A cation exchange membrane includes: a membrane body containing a fluorine-based polymer having an ion-exchange group; and two or more reinforcing core materials arranged approximately in parallel within the membrane body. The membrane body is provided with two or more elution holes formed between the reinforcing core materials adjacent to each other. A distance between the reinforcing core materials adjacent to each other is represented by a, a distance between the reinforcing core materials and the elution holes adjacent to each other is represented by b, a distance between the elution holes adjacent to each other is represented by c, and the number of the elution holes formed between the reinforcing core materials adjacent to each other is represented by n. The relationship represented by the following expression (1) or expression (2) are satisfied: b>a/(n+1)??(1); c>a/(n+1)??(2).
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: September 15, 2015
    Inventors: Hiroyuki Kameyama, Manabu Sugimoto, Yoshifumi Kado
  • Patent number: 9074290
    Abstract: A bipolar ion exchange membrane suitable for use in ZnBr batteries, LiBr batteries, and electrolyzers. The membrane is produced by hot pressing or extruding a mixture of an anion exchange ionomer powder, a cation exchange ionomer powder, and a non-porous polymer powder.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: July 7, 2015
    Assignee: Gas Technology Institute
    Inventor: Qinbai Fan
  • Patent number: 9023902
    Abstract: Highly energy efficient electrodialysis membranes having low operating costs and a novel process for their manufacture are described herein. The membranes are useful in the desalination of water and purification of waste water. They are effective in desalination of seawater due to their low electrical resistance and high permselectivity. These membranes are made by a novel process which results in membranes significantly thinner than prior art commercial electrodialysis membranes. The membranes are produced by polymerizing one or more monofunctional ionogenic monomers with at least one multifunctional monomer in the pores of a porous substrate.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: May 5, 2015
    Assignee: Evoqua Water Technologies Pte. Ltd
    Inventors: Juchui Ray Lin, George Y. Gu
  • Patent number: 8980070
    Abstract: To provide a bipolar membrane featuring improved adhesion between an anion-exchange membrane and a cation-exchange membrane without accompanied by an increase in the membrane voltage. [Means for Solution] A bipolar membrane comprising a cation-exchange membrane and an anion-exchange membrane joined together facing each other, wherein at least one of the ion exchange membranes contains a chlorinated polyolefin.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: March 17, 2015
    Assignee: Astom Corporation
    Inventors: Kazunori Nishio, Kazuo Mizuguchi, Minoru Kawashima, Toshio Aritomi
  • Publication number: 20150064606
    Abstract: The invention relates to an assembly of a porous metallic gas diffusion substrate and a polymeric separator membrane for use in an alkaline electrolyser or alkaline fuel cell. The polymeric separator membrane of the assembly comprises inorganic hydrophilic particulates dispersed in an organic polymeric binder. The polymeric separator membrane is gas tight when filled with electrolyte. The polymeric separator membrane is penetrating into at least a top portion of the porous metallic gas diffusion substrate. Also disclosed is a method to produce such an assembly via coating a paste on a porous metallic gas diffusion substrate.
    Type: Application
    Filed: March 11, 2013
    Publication date: March 5, 2015
    Inventors: Erik Dekempeneer, Inge Schildermans, Johan Vanbrabant, Bo Hong, Luc Vanmaele, Guido Desie, Willem Mues
  • Patent number: 8969424
    Abstract: Embodiments of the present invention provide for anion exchange membranes and processes for their manufacture. The anion exchange membranes described herein are made the polymerization product of at least one functional monomer comprising a tertiary amine which is reacted with a quaternizing agent in the polymerization process.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: March 3, 2015
    Assignee: Evoqua Water Technologies LLC
    Inventor: Jenny Lin
  • Publication number: 20150044366
    Abstract: A method for making a resilient ion exchange membrane comprising polymerizing a composition containing at least an ionic surfactant monomer having an ethylenic group and a long hydrophobic alkyl group filling the pores of and covering the surfaces of a porous substrate. The hydrophobic long alkyl group in the ionic surfactant monomer provides ion exchange membranes with improved mechanical properties, and good chemical stability.
    Type: Application
    Filed: April 17, 2013
    Publication date: February 12, 2015
    Inventor: Xiangchun Yin
  • Patent number: 8940152
    Abstract: A process is provided for producing electrolytic decomposition products of water by effecting a DC potential across a membrane comprising ripstop nylon interposed between an anode and a cathode. In electrolyzer mode, the electrochemical process produces hydrogen as well as oxygen products. In fuel-cell mode, the electrochemical process produces electricity from hydrogen and oxygen.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: January 27, 2015
    Inventors: Christopher M. McWhinney, David C. Erbaugh
  • Publication number: 20150021180
    Abstract: A proton conductive film, a method of producing the proton conductive film, and a highly sensitive humidity sensor are provided. The proton conductivity (room temperature, 95% RH) of the proton conductive film is 3×10?21 Scm?1 or more, and the proton conductive film is usable under a neutral-solvent atmosphere. A highly proton conductive polymer film made of an organic/metallic hybrid polymer film including: one or more metal ions selected from a group consisting of Fe ion, Co ion, Ru ion, Zn ion, and Ni ion; and bis(terpyridyl)benzene, is used.
    Type: Application
    Filed: July 26, 2013
    Publication date: January 22, 2015
    Inventors: Masayoshi Higuchi, Rakesh Kumar Pandey, Satoshi Moriyama
  • Publication number: 20140370418
    Abstract: The invention relates to a monomer (6, 14) carrying an imidazole-type heterocycle (3). According to the invention, the chemical structure of said monomer (6, 14) comprises at least one unit of formula (I) wherein R1 comprises an alkenyl grouping and R2 comprises a grouping for protecting one of the nitrogen atoms of the heterocycle. The invention also relates to a monomer carrying a benzimidazole-type heterocycle, and to protected polymers obtained from said monomers, deprotected polymers produced by the protected polymers, a proton exchange membrane based on deprotected polymers, and a fuel cell provided with said membrane. Furthermore, the invention relates to methods for producing the above-mentioned monomers and polymers.
    Type: Application
    Filed: September 4, 2014
    Publication date: December 18, 2014
    Inventors: Xavier Glipa, Bruno Ameduri, Louis Delon, Deborah Jones, Jacques Roziere, Guillaume Frutsaert
  • Publication number: 20140360868
    Abstract: To provide a reinforced electrolyte membrane to which breakage such as cracking is less likely to occur at the time of handling the reinforced electrolyte membrane during a period between after production of the reinforced electrolyte membrane and before conditioning operation of alkali chloride electrolysis, or at the time of disposing the reinforced electrolyte membrane in an electrolytic cell at the time of conditioning operation, and a process for producing the same. A reinforced electrolyte membrane 1 having an electrolyte membrane 10 containing a fluoropolymer having ion exchange groups, reinforced by a woven fabric 20 made of a reinforcing thread 22 and a sacrificial thread 24, wherein the sacrificial thread 24 remains in the electrolyte membrane 10, a void is formed between the sacrificial thread 24 and the electrolyte membrane 10, and 2000 ?m2<A<600 ?m2 and 0.3?B/A<1.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 11, 2014
    Inventors: Yasushi YAMAKI, Hiromitsu Kusano
  • Publication number: 20140356755
    Abstract: A method of forming a catalyst ink is disclosed. The method can include: polymerising an ionic monomer and at least one non-ionic monomer to form a hydrophilic polymer; dissolving the hydrophilic polymer in a suitable solvent to form a polymer solution; and mixing a catalyst with the polymer solution to make a catalyst ink. Also disclosed are catalyst inks formed from this method, as well as membranes including the catalyst inks and methods for forming the same.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 4, 2014
    Applicant: ITM Power (Research) Limited
    Inventors: Nick Van Dijk, Kevin Yeomans
  • Publication number: 20140332403
    Abstract: The present invention describes a diaphragm comprising SPEEK for alkaline electrolysis with a first layer having micropores and a second layer of macroporous channels which start at the contact surface between the first and the second layer then extending and forming the outer surface of the second layer, where said macroporous channels increase in section and change direction as they approach said outer surface of the second layer, and where the walls of the macrochannels are in turn macroporous. The invention also describes a production method for producing the diaphragm comprising the use of the chemically induced phase separation (CIPS) technique, and its use in alkaline electrolysis and in electrolyzers.
    Type: Application
    Filed: December 20, 2011
    Publication date: November 13, 2014
    Inventors: Isabel Carrilero Borbujo, Maria Santa Maria Iruzubieta, Manuel Arruebo Gordo, Jesus Otero Cebrian, Silvia Irusta Alderete, Javier Sese Monclus
  • Publication number: 20140305863
    Abstract: A process for making a composite membrane comprising the steps: (i) providing a moving poriferous support (1) impregnated with a curable composition, wherein the composition is present in the pores of the support and on a surface of the support; (ii) scraping or squeezing the poriferous support and thereby removing at least some of the curable composition (2) from the surface of the support; and (iii) after performing step (ii), irradiating the support, thereby curing the composition present therein. Composite membranes are also claimed having a surface layer thickness of below 0.5 microns.
    Type: Application
    Filed: July 5, 2012
    Publication date: October 16, 2014
    Inventor: Johannes Adrianus Wilhelmus Van Engelen
  • Publication number: 20140262762
    Abstract: Provided herein is a facilitated olefin transport membrane, including: a porous support film; and a polymer electrolyte layer formed on the porous support film and including a polymer, a silver salt and an aluminum salt. The polymer has a repetitive unit including a nitrogen atom and includes an amide group.
    Type: Application
    Filed: November 18, 2013
    Publication date: September 18, 2014
    Inventors: Yong-Soo KANG, Sang-Wook KANG
  • Publication number: 20140255820
    Abstract: A membrane stack that includes a first polymer layer, a second polymer layer, and a nanostructured carbon material layer between the first polymer layer and the second polymer layer. The nanostructured carbon material layer includes a plurality of nanostructured carbon material intercalated with one or more proton conducting material or coated with one or more solid superacid particles. The first polymer layer and the second polymer layer are capable of transporting protons. The membranes described herein can be used as polymer electrolyte membranes in fuel cells and electrolyzers.
    Type: Application
    Filed: August 6, 2012
    Publication date: September 11, 2014
    Applicant: NANO-C, INC.
    Inventor: Ramesh Sivarajan
  • Publication number: 20140227627
    Abstract: An anion transport membrane is provided enabling efficient anion exchange across the membrane, which could be used in applications like fuel cells, water electrolyzers, or water filtration systems. The structural membrane morphology is based on a hydrophobic polysulfone membrane backbone and co-grafted thereon hydrophilic poly(ethylene glycol) grafts and anion conducting quaternary ammonium species. This structure defines a bi-continuous morphology with locally phase-separated hydrophobic-hydrophilic domains, and a co-localization of the anion conducting quaternary ammonium species with respect to the hydrophilic poly(ethylene glycol) grafts enabling efficient and continuous ion transport channels for facilitating anion transport.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 14, 2014
    Inventors: Steve S. He, Curtis W. Frank
  • Patent number: 8784620
    Abstract: Described is a method for improving the operation of an electrolytic cell having an anolyte compartment, a catholyte compartment and a synthetic diaphragm separating the compartments, wherein liquid anolyte is introduced into the anolyte compartment and flows through the diaphragm into the catholyte compartment, which method involves introducing particulate material comprising halocarbon polymer short fiber, e.g., fluorocarbon polymer short fiber, into the anolyte compartment in amounts sufficient to lower the flow of liquid anolyte through the diaphragm into the catholyte compartment. In the case of an electrolytic cell wherein aqueous alkali metal chloride, e.g.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: July 22, 2014
    Assignee: Axiall Ohio, Inc.
    Inventors: Henry W. Schussler, David R. Bush, Craig R. Long
  • Publication number: 20140174952
    Abstract: The potentiometric device and method selective for pioglitazone relates to the detection of pioglitazone in urine, in other liquid biological samples, and in pharmaceutical preparations for quality control testing and the like, and particularly to the use of a potentiometric sensor for potentiometric detection and measurement of the concentration of pioglitazone. The potentiometric sensor includes a plasticized polyvinyl chloride (PVC) matrix membrane having an ionophore impregnated or embedded therein. The ionophore is an iodobismuth anion in which the iodobismuth anion forms a complex with pioglitazone. The polymer membrane is plasticized with either ortho-nitrophenyl octyl ether (NPOE) or dioctyl phthalate (DOP).
    Type: Application
    Filed: December 26, 2012
    Publication date: June 26, 2014
  • Publication number: 20140162173
    Abstract: An aspect of the invention is directed to a polymer comprising a sulfonated perfluorocyclopentyl compound. Another aspect of the invention is directed to a sulfonated copolymer comprising one or more sulfonated polymers. A further aspect of the invention is directed to membranes prepared from the polymers of the claimed invention.
    Type: Application
    Filed: July 20, 2013
    Publication date: June 12, 2014
    Applicant: The Board of Regents of the University of Texas System
    Inventors: Dennis W. Smith, JR., Daniel K. Dei, John P Ferraris, Kenneth J. Balkus, Inga H. Musselman, Duck J. Yang, Grace Jones D. Kalaw, Babloo Sharma