Membrane Or Process Of Preparing Patents (Class 521/27)
  • Patent number: 10836917
    Abstract: A curable composition contains at least one polyfunctional compound selected from the group consisting of a compound represented by General Formula (I) and a compound represented by General Formula (II), and an ionic polymer including a repeating unit indicated by General Formula (IV).
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: November 17, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Kiyotaka Fukagawa
  • Patent number: 10800874
    Abstract: The present disclosure provides alkaline-stable m-terphenyl benzimidazolium hydroxide compounds, in which the C2-position is attached to a phenyl group having various substituents at the ortho positions. Polymers incorporating m-terphenylene repeating groups derived from these alkaline-stable benzimidazolium hydroxide compounds are also presented, along with their inclusion in ionic membranes and in electrochemical devices.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: October 13, 2020
    Assignee: Simon Fraser University
    Inventors: Steven Holdcroft, Andrew Wright
  • Patent number: 10773219
    Abstract: The present invention relates to: a polymer composition for preparing a hydrophilic separation membrane, containing sulfonated inorganic particles, preferably, sulfonated titanium dioxide; and a hydrophilic separation membrane prepared therefrom. The hydrophilic separation membrane of the present invention has advantages of having excellent water flux and an excellent antifouling property.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: September 15, 2020
    Assignee: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Young Ho Ahn, Sivasankaran Ayyaru
  • Patent number: 10774190
    Abstract: A method of producing an ion-conducting membrane containing a polymer having an ionic group, involves multiple liquid treatment steps in which a precursor membrane is brought into contact with an acid treatment solution or an alkali treatment solution, the precursor membrane containing a polymer in a state in which the aforementioned ionic group forms a salt with an impurity ion, wherein the liquid treatment time in the second and subsequent liquid treatment steps of the multiple liquid treatment steps is shorter than the liquid treatment time in the initial liquid treatment step.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: September 15, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Seiji Fukuda, Yuko Yabuuchi
  • Patent number: 10749160
    Abstract: The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and a first electrode sheet and a second electrode sheet, which respectively adhere to both surfaces of the first separator sheet, wherein patterned masks having different adhesion force are respectivley disposed on both the surfaces of the first separator sheet, and the first electrode sheet adheres to the mask of a first surface of both the surfaces, which has relatively high adhesion force, and the second electrode sheet adheres to the mask of a second surface having relatively low adhesion force.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: August 18, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sang Kyun Lee, Cha Hun Ku, Jung Kwan Pyo, Ju Hyeon Cho
  • Patent number: 10703872
    Abstract: To provide a method whereby it is possible to efficiently produce an ion exchange membrane for alkali chloride electrolysis, which has high current efficiency and high alkali resistance at the time of electrolyzing an alkali chloride.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: July 7, 2020
    Assignee: AGC Inc.
    Inventors: Tamaki Chinsoga, Takuo Nishio, Yasushi Yamaki, Takayuki Kaneko
  • Patent number: 10688411
    Abstract: To provide a porous molding that can be used as a molding that has sufficient strength to be self-supportable even when the dimensions change due to absorbing water and that can be suitably used as a filter for removing impurities in a liquid or gas. A porous molding is achieved by sintering a mixed powder including a dried gel powder and a thermoplastic resin powder, wherein the ratio of average particle diameter d1 of the thermoplastic resin powder to the average particle diameter d2 of the dried gel powder d2/d1 is 1.3 or greater, and the difference ratio of average particle diameter d1 of the thermoplastic resin powder to the average particle diameter d2 of the dried gel powder and the average particle diameter d3 of the dried gel powder when absorbing water and swelling is (d3?d2)/d1 is 4.0 or less.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: June 23, 2020
    Assignee: 3M Innovative Properties, Inc.
    Inventor: Mitsuaki Kobayashi
  • Patent number: 10680283
    Abstract: A lithium metal battery is disclosed. The lithium battery comprising a Li metal anode, a cathode and an electrolyte in between the Li metal anode and the cathode wherein the electrolyte includes immobilized anions at least at the interface between the Li metal anode and the electrolyte to maintain the anionic concentration at the interface above zero throughout the charge-discharge cycles thereby preventing surface potential instability at the interface of the Li metal anode and electrolyte.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: June 9, 2020
    Assignee: BLUE SOLUTIONS CANADA INC.
    Inventors: Patrick Leblanc, Frederic Cotton, Alain Vallee, Cedric Reboul-Salze
  • Patent number: 10673075
    Abstract: A fuel cell includes: an electrolyte membrane; an anode catalyst layer; a cathode catalyst layer; and a cathode gas diffusion layer. The cathode catalyst layer includes an ionomer, the ionomer includes copolymers each of which has a hydrophilic block. The hydrophilic block is positioned at a terminal of a copolymer which includes a hydrophobic portion and a hydrophilic portion having a sulfonic acid group. The hydrophilic block has an aggregated structure of the hydrophilic portion. A gas diffusion resistance coefficient of the cathode gas diffusion layer is 3.2×10?4 m or lower. The gas diffusion resistance coefficient is expressed by “Gas Diffusion Resistance Coefficient=Thickness of Cathode Gas Diffusion Layer/(Porosity of Cathode Gas Diffusion Layer)4”.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: June 2, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Noriyuki Kitao
  • Patent number: 10669641
    Abstract: To provide an ion exchange membrane for alkali chloride electrolysis whereby it is possible to make the electrolysis voltage low and the current efficiency high at the time of performing electrolysis of an alkali chloride; a method for its production; and an alkali chloride electrolysis apparatus using it. The ion exchange membrane for alkali chloride electrolysis has a layer (C) comprising a fluorinated polymer having carbonic acid functional groups, and a layer (S) comprising a fluorinated polymer having sulfonic acid functional groups; a reinforcing material containing reinforcing threads is disposed in the layer (S); and when measured after the ion exchange membrane for alkali chloride electrolysis is immersed and held in a 32 mass % sodium hydroxide aqueous solution warmed at 90° C. for 16 hours and subsequently immersed in a 32 mass % sodium hydroxide aqueous solution at 25° C.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: June 2, 2020
    Assignee: AGC Inc.
    Inventors: Yasushi Yamaki, Takayuki Kaneko, Hiromitsu Kusano, Takuo Nishio
  • Patent number: 10586994
    Abstract: A method for producing an electrolyte solution including a supply step of continuously supplying an emulsion based a polymer electrolyte and a solvent into a dissolution facility, and a dissolution step of continuously dissolving the polymer electrolyte in the solvent by heating the interior of the dissolution facility to obtain the electrolyte solution.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: March 10, 2020
    Assignees: ASAHI KASEI KABUSHIKI KAISHA, DAIKIN INDUSTRIES, LTD.
    Inventors: Takahiro Tago, Tetsuya Murakami, Kazuhiro Ohtsuka
  • Patent number: 10576424
    Abstract: An ion exchange polymer is provided. The ion exchange polymer is a reaction product of a reaction between a crosslinker monomer and a cationic monomer. The crosslinker monomer is a reaction product of a reaction between a first crosslinking monomer and a second crosslinking monomer. Further, the cationic monomer comprises a quaternary ammonium group. A method for making an ion exchange polymer is also provided. The method comprises a step of preparing a curable solution and a step of curing the curable solution. The step of preparing the curable solution comprises mixing a pair of crosslinking monomers, a cationic monomer that comprises a quaternary ammonium group and an acid. A membrane is also provided. The membrane comprises the ion exchange polymer made by the method provided.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: March 3, 2020
    Assignee: BL TECHNOLOGIES, INC.
    Inventors: Yan Gao, Russell James MacDonald, Kai Zhang, Yonghong Zhao
  • Patent number: 10570235
    Abstract: A composition for a non-aqueous secondary battery functional layer comprises: non-conductive particles; a water-soluble polymer containing a (meth)acrylamide monomer unit in a proportion of 70.0 mass % or more and 99.0 mass % or less; and a water-insoluble polymer containing an ethylenically unsaturated carboxylic acid monomer unit in a proportion of 1.5 mass % or more and 5.0 mass % or less and having a degree of swelling in electrolyte solution of more than 1.0 time and 3.0 times or less.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: February 25, 2020
    Assignee: ZEON CORPORATION
    Inventor: Hiromi Takamatsu
  • Patent number: 10566640
    Abstract: Improved additives can be used to prepare polymer electrolyte for membrane electrode assemblies in polymer electrolyte fuel cells. Use of these improved additives can not only improve durability and performance, but can also provide a marked performance improvement during initial conditioning of the fuel cells. The additives are chemical complexes comprising certain metal and organic ligand components.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: February 18, 2020
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Keping Wang, Yunsong Yang, Carmen Chuy, Jing Li, Owen Thomas, Yuquan Zou
  • Patent number: 10561991
    Abstract: The present invention provides a anion-exchange composite membrane comprising a copolymer containing a vinylbenzyl trialkylammonium salt repeating unit, a styrene repeating unit and a divinylbenzene derived repeating unit; an olefin additive; a plasticizer; and a polyvinyl halide polymer. The anion-exchange composite membrane comprising a copolymer containing a vinylbenzyl trialkylammonium salt repeating unit, a styrene repeating unit and a divinylbenzene derived repeating unit; an olefin additive; a plasticizer; and polyvinylidene fluoride of the present invention not only displays low electrical resistance, excellent ion exchange capability, excellent ionic conductivity, excellent mechanical properties, excellent chemical properties, and processability, but also is easy to regulate its ion exchange capacity and ionic conductivity. Also, the composite membrane of the invention is easier to produce and cheaper to manufacture than the conventional anion-exchange composite membrane.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: February 18, 2020
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Jeong Hoon Kim, Bong Jun Chang, Su Young Moon
  • Patent number: 10543463
    Abstract: The present invention provides a cation-exchange composite membrane comprising a copolymer containing a styrene repeating unit introduced with a sulfonation group, a tert-butylstyrene repeating unit and a crosslink repeating unit, an olefin additive, a plasticizer and a polyvinyl halide polymer. The cation-exchange composite membrane comprising a copolymer containing a styrene repeating unit introduced with a sulfonation group, a tert-butylstyrene repeating unit and a crosslink repeating unit, an olefin additive, a plasticizer and a polyvinyl halide polymer of the present invention not only displays low electrical resistance, excellent ion exchange capability, excellent ionic conductivity, excellent mechanical properties, excellent chemical properties, and processability, but also is easy to regulate its ion exchange ability and ionic conductivity. Also, the composite membrane of the invention is easier to produce and cheaper to manufacture than the conventional cation-exchange composite membrane.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: January 28, 2020
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Jeong Hoon Kim, Bong Jun Chang, Su Young Moon
  • Patent number: 10486993
    Abstract: System and methods for treating multi-component waste streams. In general, systems and methods described herein employ a first chamber and a second chamber separated by a barrier and a filtration component that is fluidically connected to the first and second chambers. A waste stream to be treated will flow into the first chamber for treatment of the carbon-containing waste, then into the filtration component for the separation of the stream into a solid waste fraction and a liquid waste fraction.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: November 26, 2019
    Assignee: Cambrian Innovation, Inc.
    Inventors: Matthew Silver, Mark Barosky
  • Patent number: 10446864
    Abstract: The present specification relates to a polymer with improved ion transport capability, a polymer electrolyte membrane including the same, a membrane-electrode assembly including the polymer electrolyte membrane, a fuel cell including the membrane-electrode assembly, and a redox flow battery including the polymer electrolyte membrane.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: October 15, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Esder Kang, Joong Jin Han, Youngjea Kim, Yong Jin Jang, Yunah Yu
  • Patent number: 10421044
    Abstract: The composite anion exchange membrane includes: a surface layer on a single surface or both surfaces of an anion exchange membrane substrate, in which the above-described surface layer contains a copolymer of a monomer A which is a water-soluble polyfunctional monomer and a monomer B which is a cationic monomer, an anion exchange capacity of the above-described surface layer is 0.05 meq/cm3 to 0.50 meq/cm3, and an anion exchange capacity of the above-described anion exchange membrane substrate is 1.0 meq/cm3 to 5.0 meq/cm3.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: September 24, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Kazuomi Inoue
  • Patent number: 10413896
    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 an ion exchange capacity of the layer B is 0.81 mEq/g or more, and a value of (an ion cluster diameter of the layer B)/(an ion cluster diameter of the layer A) is 0.67 to 0.89.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: September 17, 2019
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Atsushi Nakajima, Yasuo Ajisaka, Yoshifumi Kado, Naoki Sakamoto
  • Patent number: 10407521
    Abstract: The present specification relates to a polymer and a polymer electrolyte membrane including the same.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: September 10, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Esder Kang, Hyun Woog Ryu, Joong Jin Han, Youngjea Kim, Sehee Jung, Yong Jin Jang
  • Patent number: 10396385
    Abstract: The present invention relates to an ion exchange membrane, a method for manufacturing the same, and an energy storage device including the same, and the ion exchange membrane includes a porous support including a plurality of pores and an ion conductor filling the pores of the porous support, in which the porous support includes micropores having a size of 31 to 1000 ?m. The ion exchange membrane may achieve high energy efficiency in the case of being applied to an energy storage device such as a vanadium redox inflow battery due to high charge/discharge cycle durability, high ion-conductivity, and excellent chemical and thermal stability.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 27, 2019
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Eun-Su Lee, Dong-Hoon Lee, Na-Young Kim, Seung-Jib Yum
  • Patent number: 10385465
    Abstract: To provide a method capable of efficiently producing an ion exchange membrane for alkali chloride electrolysis which has high current efficiency, little variation in current efficiency and high alkaline resistance. This is a method for producing an ion exchange membrane 1 having a layer (C) 12 containing a fluorinated polymer (A) having carboxylic acid type functional groups, by immersing an ion exchange membrane precursor film having a precursor layer (C?) containing a fluorinated polymer (A?) having groups convertible to carboxylic acid type functional groups, in an aqueous alkaline solution comprising an alkali metal hydroxide, a water-soluble organic solvent and water, wherein the proportion of structural units having carboxylic acid type functional groups in the fluorinated polymer (A) is from 13.0 to 14.50 mol %; in the layer (C) 12, the value of resistivity is from 4.0×103 to 25.0×103 ?·cm, and the variation in resistivity is at most 4.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: August 20, 2019
    Assignee: AGC Inc.
    Inventors: Tamaki Chinsoga, Takuo Nishio, Yasushi Yamaki, Takayuki Kaneko
  • Patent number: 10270115
    Abstract: A membrane for a proton exchange membrane fuel cell including, by weight with respect to the total weight of the membrane: from 50 to 95% of polymer A; and from 5 to 50% by weight of polymer B; A being a cation exchange fluorinated polymer; and B being a hydrocarbon aromatic polymer different from polymer A, and comprising at least one aromatic ring on its polymer chain.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: April 23, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Adrien Guimet, Arnaud Morin, Linda Chikh, Odile Fichet
  • Patent number: 10249901
    Abstract: An organic-inorganic composite anion exchange membrane for non-aqueous redox flow batteries, which contains a polyvinylidene fluoride polymer, and a method for preparing the same are disclosed.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: April 2, 2019
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seung-Hyeon Moon, Sung-Hee Shin, Yekyung Kim, Ki Won Sung
  • Patent number: 10199692
    Abstract: Proton-conducting gel electrolytes with acid immobilized within a covalently cross-linked polymer network and composites containing the gel electrolytes provide low ionic resistance, minimize acid stratification, and prevent dendrite growth. The gel electrolytes can be formed from monomers dissolved in concentrated sulfuric acid and subsequently covalently cross-linked between the battery electrodes, or the covalently cross-linked gel electrolytes can be formed in water and subsequently exchanged into sulfuric acid. The mechanical properties of these gels can often be enhanced with the addition of silica powder, silica fiber, or other additives. In some cases, the covalently cross-linked gel electrolytes are formed in the presence of a conventional silica-filled polyethylene separator or within a low density fiber mat to provide mechanical reinforcement and controlled spacing between the battery electrodes.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: February 5, 2019
    Assignee: AMTEK RESEARCH INTERNATIONAL LLC
    Inventors: Jungseung Kim, Robert R. Waterhouse, Richard W. Pekala, Eric B. Hostetler
  • Patent number: 10179189
    Abstract: Methods to produce thermoforms from P4HB homopolymer and blends thereof have been developed. These thermoforms are produced from films and sheets including P4HB, wherein the intrinsic viscosity of the P4HB is less than 3.5 dl/g, but greater than 0.35 dl/g, and the thermoforms are produced at a temperature equal to or greater than the softening point of P4HB, and more preferably at a temperature higher than the melting point of P4HB. A preferred embodiment includes a P4HB thermoform wherein a film or sheet including a P4HB polymer is thermoformed at a temperature between its melting point and 150° C. In a particularly preferred embodiment the thermoform is a laminate made from a P4HB film and a P4HB mesh.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: January 15, 2019
    Assignee: Tepha, Inc.
    Inventors: Matthew Bernasconi, Dennis Connelly, Said Rizk, David P. Martin, Simon F. Williams
  • Patent number: 10122001
    Abstract: The present invention is directed to lithium ion transport media for use in separators in lithium ion batteries, and the membranes, separators, and devices derived therefrom.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: November 6, 2018
    Assignees: Drexel University, The Trustees of the University of Pennsylvania
    Inventors: Yossef A. Elabd, Karen I. Winey, Yuesheng Ye, Jae-Hong Choi, Tsen-Shan Sharon Sharick
  • Patent number: 10053534
    Abstract: The present invention relates to functionalized polymers including a poly(phenylene) structure. The structure can include any useful modifications, such as the inclusion of one or more reactive handles having an aryl group. Methods and uses of such structures and polymers are also described herein.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: August 21, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Cy Fujimoto
  • Patent number: 10050294
    Abstract: The present specification provides a polymer electrolyte membrane, a membrane electrode assembly including the polymer electrolyte membrane, and a fuel cell including the membrane electrode assembly.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: August 14, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Young Sun Park, Minkyu Min, Hyuk Kim, Seong Ho Choi, Sangwoo Lee, Doyoung Kim
  • Patent number: 10005886
    Abstract: Described herein are stable hydroxide ion-exchange polymers. The polymers include ionenes, which are polymers that contain ionic amines in the backbone. The polymers are alcohol-soluble and water-insoluble. The polymers have a water uptake and an ionic conductivity that are correlated to a degree of N-substitution. Methods of forming the polymers and membranes including the polymers are also provided. The polymers are suitable, for example, for use as ionomers in catalyst layers for fuel cells and electrolyzers.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: June 26, 2018
    Assignee: Simon Fraser University
    Inventors: Steven Holdcroft, Andrew Wright
  • Patent number: 9962691
    Abstract: Disclosed are composite materials and methods of making them. The composite materials comprise a support member and a cross-linked gel, wherein the cross-linked gel is a polymer synthesized by thiol-ene or thiol-yne polymerization and cross-linking. The cross-linked gel may be functionalized by a thiol-ene or thiol-yne grafting reaction, either simultaneously with the polymerization or as the second step in a two-step procedure. The composite materials are useful as chromatographic separation media.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: May 8, 2018
    Assignee: Natrix Separations Inc.
    Inventors: Amro Ragheb, Gary Skarja
  • Patent number: 9914847
    Abstract: A resin composition for forming a phase-separated structure, including: a block copolymer, and an ion liquid containing a compound (IL) having a cation moiety and an anion moiety, the energy of the LUMO of the cation moiety being ?4.5 eV or more, and the energy difference between the LUMO and the HOMO of the cation moiety being 10.0 ev or more, or the Log P value of the anion moiety being 1 to 3.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: March 13, 2018
    Assignees: TOKYO OHKA KOGYO CO., LTD., THE UNIVERSITY OF CHICAGO
    Inventors: Akiya Kawaue, Takehiro Seshimo, Takaya Maehashi, Tasuku Matsumiya, Ken Miyagi, Hitoshi Yamano, Xuanxuan Chen, Paul Franklin Nealey
  • Patent number: 9899685
    Abstract: One embodiment includes a method comprising the steps of providing a first dry catalyst coated gas diffusion media layer, depositing a wet first proton exchange membrane layer over the first catalyst coated gas diffusion media layer to form a first proton exchange membrane layer; providing a second dry catalyst coated gas diffusion media layer; contacting the second dry catalyst coated gas diffusion media layer with the first proton exchange membrane layer; and hot pressing together the first and second dry catalyst coated gas diffusion media layers with the wet proton exchange membrane layer therebetween.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Matthew J Beutel, Timothy J Fuller
  • Patent number: 9834623
    Abstract: A crosslinked copolymer is provided, which includes a copolymer crosslinked by a crosslinking agent. The copolymer is copolymerized of (a) styrene-based monomer, (b) monomer having conjugated double bonds or acrylate ester monomer, and (c) ammonium-containing heterocyclic monomer. The crosslinking agent is (d) or the product of the reaction between and (e) or a combination thereof. Z is wherein each R1 is independently H or C1-4 alkyl group, each R2 is independently H or C1-4 alkyl group, R3 is single bond, —O—, —S—, —CH2—, or —NH—. n is a positive integer. x is 1 to 12, y is 1 to 5, and z is 1 to 5.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: December 5, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsuan-Wei Lee, Li-Duan Tsai, Chiu-Hun Su, Chiu-Tung Wang, Cheng-Hsiu Tsai
  • Patent number: 9812725
    Abstract: A membrane obtainable by A) mixing: (vii) aromatic tetraamino compounds and (viii) aromatic carboxylic acids or esters thereof which contain at least two acid groups per carboxylic acid monomer, or (ix) aromatic and/or heteroaromatic diaminocarboxylic acids, in polyphosphoric acid to form a solution and/or dispersion B) heating the mixture from step A), and polymerizing until an intrinsic viscosity of at least 0.8 dl/g, is obtained for the polymer being formed, C) adding polyazole polymers, D) heating the mixture from step C), E) applying a membrane layer using the mixture according to step D) on a carrier or an electrode, F) treating the membrane formed in the presence of water and/or moisture, G) removing the membrane from the carrier; wherein the content of all polyazole polymers in the membrane is between 5% to 25% by weight and wherein the membrane has a Young Modulus is at least 2.0 MPa.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: November 7, 2017
    Assignee: BASF SE
    Inventors: Brian Benicewicz, Sigmar Bräuninger, Gordon Calundann, Guoqing Qian
  • Patent number: 9806314
    Abstract: The present invention is directed to compositions useful for use in separators for use in lithium ion batteries, and membranes, separators, and devices derived therefrom.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: October 31, 2017
    Assignees: Drexel University, The Trustees of the University of Pennsylvania
    Inventors: Yossef A. Elabd, Karen I. Winey, Yuesheng Ye, Jae-Hong Choi, Tsen-Shan Sharon Sharick
  • Patent number: 9745432
    Abstract: The present invention relates to the preparation of novel anion exchange membranes from bicomponent or tricomponent copolymers containing both quaternizable and cross-linkable moieties. The bicomponent copolymers consisted with polyacrylonitrile and poly(2-dimethylaminoethyl) methacrylate and the tricomponent copolymers consisted with polyacryloniterle and poly2-dimethylaminoethyl) methacrylate and polyn-butyl acrylate. Quaternization of dimethyl amino groups of copolymer by methyl iodide followed by cross-linking of acrylonitrile groups of copolymer by hydrazine hydrate resulted anion exchange membrane with desired properties such as high ion exchange capacity (1.30-1.50 meqg?1), high transport number (0.92-0.93) for direct use in electrodyalysis unit. The tricomponent anion exchange membrane containing 32 wt % PDMA, 17 wt % PnBA, and 51 wt % PAN exhibited improved performance mainly in terms of low power consumption and high current efficiency during desalination of water.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: August 29, 2017
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Uma Chatterjee, Suresh Kumar Jewrajka, Sreekumaran Thampy
  • Patent number: 9732194
    Abstract: Methods for forming a graft copolymer of a poly(vinylidene fluoride)-based polymer and at least one type of electrically conductive polymer, wherein the electrically conductive polymer is grafted on the poly(vinylidene fluoride)-based polymer are provided. The methods comprise a) irradiating a poly(vinylidene fluoride)-based polymer with a stream of electrically charged particles; b) forming a solution comprising the irradiated poly(vinylidene fluoride)-based polymer, an electrically conductive monomer and an acid in a suitable solvent; and c) adding an oxidant to the solution to form the graft copolymer. Graft copolymers of a poly(vinylidene fluoride)-based polymer and at least one type of electrically conductive polymer, wherein the electrically conductive polymer is grafted on the poly(vinylidene fluoride)-based polymer, nanocomposite materials comprising the graft copolymer, and multilayer capacitors comprising the nanocomposite material are also provided.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: August 15, 2017
    Assignee: Nanyang Technological University
    Inventors: Pooi See Lee, Vijay Kumar, Meng-Fang Lin
  • Patent number: 9694357
    Abstract: A method of making a multi-acid polymer comprising: reacting a polymer precursor in sulfonyl fluoride or sulfonyl chloride form with anhydrous ammonia to obtain a sulfonamide, wherein the polymer precursor in sulfonyl fluoride or sulfonyl chloride form has a formula R—SO2F or R—SO2Cl, respectively, with R being one of more units of the polymer precursor without sulfonyl fluoride or sulfonyl chloride, and wherein the sulfonamide has a formula R—SO2—NH2; and reacting the sulfonamide with a compound of a formula COOH—X-AGG under a mild base condition, wherein X is one of C6H3 or N(CH2)3 and AGG is an acid giving group, to form the multi-acid polymer having an imide base and more than two proton conducting groups.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: July 4, 2017
    Assignee: Nissan North America, Inc.
    Inventor: Rameshwar Yadav
  • Patent number: 9687585
    Abstract: Methods to produce thermoforms from P4HB homopolymer and blends thereof have been developed. These thermoforms are produced from films and sheets including P4HB, wherein the intrinsic viscosity of the P4HB is less than 3.5 dl/g, but greater than 0.35 dl/g, and the thermoforms are produced at a temperature equal to or greater than the softening point of P4HB, and more preferably at a temperature higher than the melting point of P4HB. A preferred embodiment includes a P4HB thermoform wherein a film or sheet including a P4HB polymer is thermoformed at a temperature between its melting point and 150° C. In a particularly preferred embodiment the thermoform is a laminate made from a P4HB film and a P4HB mesh.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: June 27, 2017
    Assignee: Tepha, Inc.
    Inventors: Matthew Bernasconi, Dennis Connelly, Said Rizk, David P. Martin, Simon F. Williams
  • Patent number: 9593215
    Abstract: The present invention provides for a polymer formed by reacting a first reactant polymer, or a mixture of first reactant polymers comprising different chemical structures, comprising a substituent comprising two or more nitrogen atoms (or a functional group/sidechain comprising a two or more nitrogen atoms) with a second reactant polymer, or a mixture of second reactant polymers comprising different chemical structures, comprising a halogen substituent (or a functional group/sidechain comprising a halogen).
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: March 14, 2017
    Assignee: The Regents of the University of California
    Inventors: Siwei Liang, Nathaniel A. Lynd
  • Patent number: 9559367
    Abstract: The present invention relates to membrane electrode assemblies comprising two electrochemically active electrodes separated by a polymer electrolyte membrane, there being a polyimide layer on each of the two surfaces of the polymer electrolyte membrane that are in contact with the electrodes. The present membrane electrode assemblies may be used in particular for producing fuel cells which have a particularly high long-term stability.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: January 31, 2017
    Assignee: BASF Fuel Cell GmbH
    Inventors: Jürgen Pawlik, Jochen Baurmeister, Christoph Padberg
  • Patent number: 9553327
    Abstract: A method for forming a modified solid polymer includes a step of contacting a solid fluorinated polymer with a sodium sodium-naphthalenide solution to form a treated fluorinated solid polymer. The treated fluorinated solid polymer is contacted with carbon dioxide, sulfur dioxide, or sulfur trioxide to form a solid grafted fluorinated polymer. Characteristically, the grafted fluorinated polymer includes appended CO2H or SO2H or SO3H groups. The solid grafted fluorinated polymer is advantageously incorporated into a fuel cell as part of the ion-conducting membrane or a water transport membrane in a humidifier.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: January 24, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Timothy J. Fuller, Ruichun Jiang
  • Patent number: 9527073
    Abstract: The present invention describes the process of preparation of inter-polymer film of p-methylstyrene-co-divinylbenzene and its conversion into anion exchange membrane through a greener route which dispenses with the use of chloromethyl ether. The membrane with polyethylene binder is shown to have equivalent or even superior performance to anion exchange membrane prepared from styrene-co-divinylbenzene/polyethylene through chloromethyl ether route.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: December 27, 2016
    Assignee: Council of Scientific & Industrial Research
    Inventors: Pushpito Kumar Ghosh, Saroj Sharma, Milan Dinda, Chiragkumar Rameshbhai Sharma, Uma Chatterjee, Vaibhav Kulshreshtha, Soumyadeb Ghosh, Babulal Surabhai Makwana, Sreekumaran Thampy, Girish Rajanikant Desale
  • Patent number: 9511169
    Abstract: Continuous processing methods are used for making absorbable polymeric non-wovens, with anisotropic properties, improved mechanical properties and without substantial loss of polymer molecular weight during processing. The method includes producing dry spun-non wovens from a polymer, and collecting the fibers using a rotating collector plate, preferably a rotating cylinder, to collect the non-woven instead of a fiberglass stationary collector plate. The non-wovens can be used for a variety of purposes including fabrication of medical devices.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: December 6, 2016
    Assignee: Tepha, Inc.
    Inventors: Kai Guo, Fabio Felix, David P. Martin
  • Patent number: 9455451
    Abstract: Water soluble catalysts, (M)meso-tetra(N-Methyl-4-Pyridyl)Porphinepentachloride (M=Fe, Co, Mn & Cu), have been incorporated into the polymer binder of oxygen reduction cathodes in membrane electrode assemblies used in PEM fuel cells and found to support encouragingly high current densities. The voltages achieved are low compared to commercial platinum catalysts but entirely consistent with the behavior observed in electroanalytical measurements of the homogeneous catalysts. A model of the dynamics of the electrode action has been developed and validated and this allows the MEA electrodes to be optimized for any chemistry that has been demonstrated in solution. It has been shown that improvements to the performance will come from modifications to the structure of the catalyst combined with optimization of the electrode structure and a well-founded pathway to practical non-platinum group metal catalysts exists.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: September 27, 2016
    Assignee: The Regents of the University of California
    Inventors: John B. Kerr, Xiaobing Zhu, Gi Suk Hwang, Zulima Martin, Qinggang He, Peter Driscoll, Adam Weber, Kyle Clark
  • Patent number: 9441083
    Abstract: A functional polymer membrane, prepared by curing a composition comprising a polymerizable compound (A) represented by Formula (1) and a monofunctional polymerizable compound (B): wherein R1 represents a hydrogen atom or a methyl group; Q represents a polyol residue formed by removing m2 hydrogen atoms from hydroxyl groups of a trivalent to hexavalent polyol; L represents a divalent linking group; m1 represents 0 or 1; m2 represents an integer of from 3 to 6, and wherein the monofunctional polymerizable compound (B) is a (meth)acrylate compound, a (meth)acrylamide compound, a vinyl ether compound, an aromatic vinyl compound, an N-vinyl compound, or an allyl compound.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: September 13, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Tetsufumi Takamoto, Akihito Amao, Wakana Yamada
  • Patent number: 9434679
    Abstract: The present invention provides a fluorinated ionomer [polymer (I)] comprising recurring units derived from at least the following monomers: (i) 5 to 50% by weight of a fluorinated monomer [monomer (A)] containing at least one —SO2X functionality, preferably having the formula of CF2?CF—O—(CF2CF(CF3)O)m—(CF2)mSO2X (I) wherein m is 0 or 1, n is an integer between 0-10, and X is selected from F, OH, and O?Me+, wherein Me+ indicates an alkali metal ion or an ammonium cation of formula NR4? where each R independently represents a hydrogen atom or a monovalent organic radical selected from aliphatic radicals having from 1 to 8 carbon atoms and arylic or alicyclic radicals having from 3 to 8 carbon atoms; (ii) a non-functional fluorinated monomer [monomer (B)] having at least one ethylene unsaturation; and (iii) a fluorinated polyfunctional compound having the general formula: (CR1R2?CFCF2—O)a—Rf—((O)c—CF?CR3R4)b (II) wherein: a is an integer equal to or larger than 1, preferably a is 1, 2, or 3; b is 0 or 1 and the
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: September 6, 2016
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Luca Merlo, Vito Tortelli, Ivan Wlassics, Claudio Oldani
  • Patent number: 9403162
    Abstract: Ionomers and ionomer membranes, consisting of a non-fluorinated or partly fluorinated non-, partly or fully-aromatic main chain and a non- or partly-fluorinated side chain with ionic groups or their non-ionic precursors, have a positive impact on the proton conductivity of the ionomers. Various processes produce these polymeric proton conductors. The membranes are useful for fuel cell applications.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: August 2, 2016
    Inventors: Thomas Häring, Rima Häring