Class 204/296 - Organic

Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Electrolytic diaphragms comprising as an essential part
No. of applications: 40
Last issue date: 02/09/2012

Application No.	Application Title	Issue Date
20120031834	ION-EXCHANGE MEMBRANE AND METHOD FOR PRODUCING SAME There is provided an ion-exchange membrane comprising an ion-exchange layer made of a cationic polymer and/or an anionic polymer and a supporting layer, wherein the ion-exchange layer is formed on the supporting layer by printing. Such an ion-exchange membrane exhibits ...	02/09/2012
20110278159	CATION EXCHANGE MEMBRANE, PRODUCTION PROCESS THEREOF AND ELECTROLYTIC CELL USING THE SAME A cation exchange membrane which shows suppressed deterioration of the strength of the membrane in the upper portion of an electrolytic cell when the membrane is employed in the electrolytic cell and used for a long term, which can perform electrolysis with good product...	11/17/2011
20110240463	BIPOLAR MEMBRANE AND METHOD OF MANUFACTURING THE SAME 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 cat...	10/06/2011
20110127161	NOVEL PROTON EXCHANGE COMPOSITE MEMBRANE WITH LOW RESISTANCE AND PREPARATION THEREOF The present invention provides a proton exchange composite membrane with low resistance and preparation thereof. The present invention also provides a novel coupling agent....	06/02/2011
20110068002	ION EXCHANGE MEMBRANES 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 seaw...	03/24/2011
20110027691	Polymer Membranes The invention relates to novel organic/inorganic hybrid membranes which have the following composition: a polymer acid containing —SO₃H, PO₃H₂, —COOH or B(OH)₂groups, a polymeric ease (optional), which contains primary, s...	02/03/2011
20100252426	POROUS SHEET, SEPARATOR FOR ELECTROCHEMICAL ELEMENT, AND METHOD FOR MANUFACTURING POROUS SHEET A porous sheet which has good balance between electrolytic solution permeability and dry-up resistance, is superior in high-rate property, and is suitable for a separator for an electrochemical element, and a manufacturing method thereof are provided.	10/07/2010
20100252428	HETEROGENEOUS MEMBRANE ELECTRODES The present invention relates to planar electrochemical sensors with membrane coatings used to perform chemical analyses. The object of this invention is to provide unit-use disposable sensors of very simple and inexpensive construction, preferably with only a single me...	10/07/2010
20100236922	Separator for Chlor-Alkali Electrolytic Cells and Method for its Manufacturing The invention relates to a synthetic diaphragm for chlor-alkali cells with improved energy consumption and gas separation characteristics. The diaphragm comprises a network of polymer fibres bound to a hydrophilic ceramic material containing zirconium chemically bound t...	09/23/2010
20100233575	QUATERNARY AMMONIUM COMPOUNDS AND THEIR USES According to the invention there is provided a method of conduction including the steps of providing a quaternary ammonium compound, and causing the quaternary ammonium compound to conduct ionically....	09/16/2010
20100219069	Gas Diffusion Layer and Method for the Production Thereof A gas diffusion layer having a layer (2) comprising fibers (1), whereby the fibers (1) are partially provided with a coating material (3), whereby the fibers (1) lie against each other at contact sites (4) and whereby the layer ...	09/02/2010
20100187103	Ion-permeable diaphragm An ion-permeable diaphragm comprises a membrane material containing a calcium phosphate compound or calcium fluoride as a hydrophilic inorganic material. The calcium phosphate compound is preferably fluoroapatite or hydroxyapatite. The membrane material is obtained by i...	07/29/2010
20100158983	METHOD FOR INCREASING THE PERMEABILITY OF POLYMER FILM Polymer membranes are disclosed having increased permeability. The process of the present disclosure, for instance, can increase the ion permeability of membranes and/or the gas permeability of membranes. In one embodiment, for instance, a precursor polymer is subjected...	06/24/2010
20090255826	MEMBRANE FOR ELECTROCHEMICAL APPARATUS A membrane for use with an electrochemical apparatus is provided. The electrochemical apparatus may include a fuel cell or electrolyzer, for example, an electrolyzer adapted to produce hydrogen. The membrane comprises a fabric made from a synthetic fiber such as nylon w...	10/15/2009
20080289956	Diaphragm For Electrolytic Cell Describes a diaphragm for an electrolytic diaphragm cell, e.g., a chlor-alkali cell, in which the diaphragm comprises fibrous material substantially resistant to the environment within the electrolytic cell and spheroidal ceramic microspheres at least partially resistan...	11/27/2008
20080113242	MICROPOROUS PVDF FILMS Shaped microporous articles are produced from polyvinylidene fluoride (PVDF) and nucleating agents using thermally induced phase separation (TIPS) processes. The shaped microporous article is oriented in at least one direction at a stretch ratio of at least approximatel...	05/15/2008
20070202377	ELECTROLYTE MATERIAL, ELECTROLYTE MEMBRANE AND MEMBRANE-ELECTROLYTE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELLS To provide an electrolyte material for polymer electrolyte fuel cells having a high softening temperature and being excellent in durability, and an electrolyte membrane and a process for producing a membrane-electrode assembly using it. An electrolyte material made of a...	08/30/2007
20070193885	APPARATUS AND METHODS FOR ELECTROCHEMICAL HYDROGEN MANIPULATION Apparatus and methods are provided for electrochemical hydrogen manipulation. In one example, an electrochemical cell is provided utilizing an acid doped polybenzimidazole membrane having a proton conductivity of at least 0.1 S/cm and comprising phosphoric acid in a rat...	08/23/2007
20070065700	High temperature polymer electrolyte membranes Sulfonated polymer compositions including a polymer or copolymer derived from the monomer 2,2′-di-(4,4′dihydroxyphenyl) pentafluoropropanesulfonic acid are provided. Such compositions can provide improved polymer electrolyte membranes, especially in preferred embodi...	03/22/2007
20070031717	Composite proton exchange membrane and method of manufacturing the same A composite proton exchange membrane and method of manufacturing the same. The composite proton exchange membrane comprises a proton exchange membrane which has been modified by replacing membrane protons in desired areas of the membrane with a cationic polymer. The cat...	02/08/2007
20070020527	Polymer electrolyte, half-cell for electrochemical measurements, as well as the use thereof A polymer electrolyte for an electrochemical half-cell, such as a reference half-cell, contains a polymer which can be produced by polymerization of N-acryloyl-amino-ethoxy-ethanol or by co-polymerization of N-acryloyl-amino-ethoxy-ethanol with at least one further mono...	01/25/2007
20060266642	Direct assembly process for fabrication of ionomeric polymer devices Ionomeric polymer sensors, actuators, and transducers and methods for fabricating them are disclosed. One embodiment of the sensors, actuators, and transducers possess a high surface area electrode layer that is applied by hot pressing and a highly conductive surface la...	11/30/2006
20060249380	Electrochemical cell The invention describes an electrochemical cell for the electrolysis of an aqueous solution of hydrogen chloride, comprising at least an anode half-cell with an anode, a cathode half-cell with a gas diffusion electrode as cathode and an ion exchange membrane arranged be...	11/09/2006
20060241260	Low equivalent weight ionomer An ionomer and a process for forming the ionomet such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the inven...	10/26/2006
20060241262	Low equivalent weight ionomer An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the inven...	10/26/2006
20060241261	Low equivalent weight ionomer An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the inven...	10/26/2006
20060065522	Solid polymer electrolyte composite membrane comprising plasma etched porous support A solid polymer electrolyte composite membrane and method of manufacturing the same. According to one embodiment, the composite membrane comprises a rigid, non-electrically-conducting support, the support preferably being a sheet of polyimide having a thickness of about...	03/30/2006
20060065521	Solid polymer electrolyte composite membrane comprising laser micromachined porous support A solid polymer electrolyte composite membrane and method of manufacturing the same. According to one embodiment, the composite membrane comprises a rigid, non-electrically-conducting support, the support preferably being a sheet of polyimide having a thickness of about...	03/30/2006
20060016685	Textured ion exchange membranes A textured water-splitting membrane comprises an anion exchange layer abutting a cation exchange layer to form a heterogeneous water-splitting interface therebetween, and a textured surface having a pattern of texture features comprising spaced apart peaks and valleys. ...	01/26/2006
20050167266	ECMP system An improved electrochemical IR calculation and correction system allows for the precise measurement and control of the interfacial voltage drop at an electrode double layer. In an exemplary use of the invention, this improved IR correction ability allows ECMP to be used...	08/04/2005
20050165186	Low Equivalent weight ionomer An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight; below 950, preferably between 625 and 850, and most preferably between about 700 and about 800; and (2) high conductivity, (greater than 0.15 S/cm). In an alternative e...	07/28/2005
20050153187	Proton conductive electrolyte membrane, solid polymer fuel cell and method for producing proton conductive electrolyte membrane A method for producing a proton conductive electrolyte membrane in which proton conductivity is sufficiently high, methanol permeability is sufficiently low and physical strength is sufficient for reducing the thickness adequately. The production method includes: lamina...	07/14/2005
20050113469	Method for preparing poly(2,5-benzimidazole) A method for preparing poly(2,5-benzimidazole) whereby 3,4-diaminobenzoic acid is polymerized using a dehydrating reagent containing P₂O₅and CX₃SO₃H where X is H or F. The poly(2,5-benzimidazole) has good proton conductivity ...	05/26/2005
20050112435	Polymer electrolyte membrane and polymer electrolyte fuel cell There are provided a polymer electrolyte membrane having at least one surface with an average surface roughness Ra′ of from 30 nm to 500 nm and a surface area ratio Sr of 1.2 or more in which Sr is defined as S/S₀with S₀representing a surface a...	05/26/2005
20050106469	Proton conductive composition and proton conductive membrane A proton conductive membrane exhibiting superior proton conductivity even at high temperatures of 100° C. or above, and a proton conductive composition capable of forming the membrane are provided. The invention also provides a proton conductive membrane showing excell...	05/19/2005
20050106440	Proton conductor and method for producing the same An acidic group-containing solid polymer, having an acidic group such as a sulfonic acid group, a phosphoric acid group, and/or a phosphonic acid group, is dissolved in an organic solvent other than methanol. An ionic liquid is added to the solution to prepare a casting...	05/19/2005
20050067276	Electrolytic generation of nitrogen using azole derivatives The invention provides electrolytes for the electrochemical generation of nitrogen gas by anodic oxidation of triazole and tetrazole derivatives. Electrolytic cells incorporating these electrolytes are also disclosed. The nitrogen gas so produced may be useful to actuat...	03/31/2005
20050053818	Ion exchange composite material based on proton conductive functionalized inorganic support compounds in a polymer matrix The composite material comprise acid functionalized inorganic supports such as silica dispersed in a functionalized and/or non-functionalized polymer matrix that is based on numerous polymers such as poly(aromatic ether ketones), or poly(benzoyl phenylene), or derivativ...	03/10/2005
20050031927	Polyelectrolyte membrane, method for its production and fuel cell using said polyelectrolyte membrane A polyelectrolyte membrane includes at least one syndiotactic styrenic polymer or copolymer in its clathrate form. The syndiotactic styrenic polymer or copolymer in its clathrate form is syndiotactic polystyrene. The polyelectrolyte membrane has a good electrical conduc...	02/10/2005
20050000799	Preparation and storage of membrane and electrode assemblies Protecting a membrane and electrode assembly in an electrochemical cell having one or more electrocatalysts in intimate contact with the membrane during storage or shipment of the cell. The membrane may be provided in either the non-proton form of a dry or hydrated cati...	01/06/2005

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Class 204/296 - Organic