Patents for C25B 13 - Diaphragms; Spacing elements (2,681)
03/1985
03/05/1985US4502931 Process for the production of ion exchange membranes with coating for electrolysis
02/1985
02/26/1985CA1182960A1 Method for making a porous thermoresin structure
02/19/1985CA1182777A1 Production of alkali metal hydroxide in a cell with a membrane carrying carboxylic acid groups and including metal
02/12/1985US4498961 Method of electrolyzing brine with stable low voltage microporous diaphragm in electrolytic cells
02/12/1985CA1182257A1 Diaphragm, its preparation and its use in a electrolytic process
01/1985
01/23/1985EP0131724A2 Woven diaphragm for aqueous electrolytes
01/22/1985US4495078 Solid proton conductors and their use
01/15/1985US4493759 Electrolytic cell
01/08/1985CA1180849A1 Sulfonic acid electrolytic cell membranes
01/08/1985CA1180520A1 Process for the production of a cation exchange diaphragm and the diaphragm obtained by this process
12/1984
12/27/1984CA1179974A Polymeric microporous separators for use in electrolytic processes and devices
12/25/1984US4490484 Membrane assembly, electrochemical cell, and electrolysis process using perfluorinated sandwich type membrane
12/18/1984US4489025 Preparation of dimensionally stable asbestos diaphragms
12/18/1984CA1179635A1 Technique of prestressing semi-permeable membranes
12/04/1984US4486277 Electrolytic cation exchange membrane
12/04/1984CA1178926A1 Heat-treated fluorocarbon sulfonamide cation exchange membrane
11/1984
11/28/1984EP0126490A1 Diaphragm based on nickel oxide and process for its manufacture
11/13/1984US4482441 Magnesium oxide particles
11/13/1984CA1177783A1 Fluorinated reinforced polymer membrane with sulfonyl and/or carboxyl groups
11/06/1984US4481306 Cation exchange membranes for electrolytic cells
10/1984
10/31/1984EP0123261A2 Process for electrochemically separating ion mixtures
10/23/1984US4478680 Method for treating electrolytic diaphragm
10/17/1984EP0122049A2 Unreinforced membrane, electrochemical cell, and electrolysis process
10/16/1984US4477321 Sacrificial reinforcements in cation exchange membrane
10/09/1984US4475985 Process for the production of a diaphragm for electrolytic cells
10/09/1984CA1175781A1 Forming fluorinated ion exchange polymer on removable thin layer over perforated electrode
10/03/1984EP0120212A1 Process for producing an electrically conductive layer on a solid electrolyte surface, and electrically conductive layer
10/02/1984US4474700 β-Substituted polyfluoropropionate salts and derivatives
10/02/1984US4474615 Diaphragm for electrolysis and method for production thereof
09/1984
09/19/1984EP0119080A2 Reinforced membrane, electrochemical cell, and electrolysis process
09/18/1984CA1174729A1 Electrochemical construction
09/18/1984CA1174638A1 Cation-exchange membrane for electrolyzing alkali metal halide
09/11/1984US4470889 Electrolytic cell having an improved ion exchange membrane and process for operating
09/05/1984EP0117841A2 Modified liquid permeable asbestos diaphragms with improved dimensional stability
09/04/1984US4469579 Solid polymer electrolytes and electrode bonded with hydrophylic fluorocopolymers
09/04/1984CA1173789A1 Diaphragms for use in the electrolysis of alkali metal chlorides
09/04/1984CA1173788A1 Method of depositing an asbestos diaphragm and the diaphragm prepared thereby
08/1984
08/28/1984US4468360 Preparing porous diaphragms for electrolytic cells having non-uniform hydrophobicity
08/28/1984US4468311 Generating halogen, nickel mat, graphite paper between mat and diaphragm
08/28/1984US4468301 Ion exchange membrane cell and electrolytic process using thereof
08/28/1984CA1173403A1 Electrolysis of chloride with fluorine polymer membrane with carboxylic acid groups
08/21/1984CA1173105A1 Solid polymer electrolytes and electrode bonded with hydrophyllic fluorocopolymers
08/14/1984CA1172604A1 Electrolysis cell with intermediate chamber for electrolyte flow
08/07/1984US4464238 Porous separators for electrolytic processes
07/1984
07/24/1984US4461682 Anode and cathode partitioned by ion exchange membrane with roughened surface
07/24/1984CA1171385A1 Cation exchange membrane of flurorinated polymer for an electrolysis
06/1984
06/26/1984CA1169814A1 Strengthened fiberous electrochemical cell diaphragm and a method for making
06/26/1984CA1169811A1 Membrane support assembly for electrolytic cell and method of making same
06/19/1984US4455210 Multi layer ion exchanging membrane with protected interior hydroxyl ion rejection layer
06/12/1984US4454247 Perfluorovinyl ether copolymers
06/12/1984CA1169018A1 Method of and apparatus for separating the gases generated during a fusion electrolysis
06/05/1984EP0097646A4 Coextruded multilayer cation exchange membranes.
05/1984
05/08/1984US4447566 Fluoropolymers reinforced with fibers
05/01/1984CA1166599A1 Electrolyzing chloride solution in cell with ion exchange membrane having inorganic particle layer
04/1984
04/24/1984US4444640 Dimensionally stable asbestos-polytetrafluoroethylene diaphragms for chloralkali electrolytic cells
04/17/1984US4443316 Electrolysis cell with intermediate chamber for electrolyte flow
04/17/1984CA1165727A1 Electrolytic cell for ion exchange membrane method
04/10/1984CA1165277A2 Process for electrolysis of sodium chloride
04/10/1984CA1165276A1 Electrolysis diaphragm, and its production
04/10/1984CA1165066A1 Cation exchange membrane of a fluorocarbon polymer and a process for preparing the same
04/03/1984US4440917 Copolymers with perfluorinated monoolefins-used as membranes in electrolytic cells
03/1984
03/27/1984US4439296 Method for repairing perfluorinated polymeric microporous electrolytic cell separators by heat sealing
03/20/1984US4437952 Coextruded multilayer cation exchange membranes
03/20/1984US4437951 Ion exchange resins
03/20/1984CA1163955A1 Production of porous diaphragm for electrolytic cell
02/1984
02/28/1984US4434116 Method for making a porous fluorinated polymer structure
02/21/1984US4432860 Porous diaphragm for electrolytic cell
02/21/1984US4432859 Fluoropolymer woven fabric; wettability
02/21/1984US4432857 Cladding cathodes of electrolytic cell with diaphragm or membrane
02/21/1984CA1162604A1 Asbestos diaphragms for electrochemical cells and the manufacture thereof
02/14/1984US4431504 Cation-exchange membrane for electrolyzing alkali metal halide
01/1984
01/31/1984US4428813 Heat sealing the projected ends of separators with radio frequency
01/31/1984CA1161393A1 Electrolytic process for potassium hydroxide
01/18/1984EP0098518A2 Porous corrosion-resistant separators consisting of metallic screens coated by ceramic oxides
01/17/1984US4426272 Electrolytic cell vermiculite diaphragms
01/11/1984EP0097646A1 Coextruded multilayer cation exchange membranes.
12/1983
12/28/1983EP0096991A1 Porous diaphragm for electrolytic cell
12/27/1983US4423157 Multilayer, with sulfonic and carboxylic acid groups
12/27/1983CA1159393A1 Cation exchange membranes
12/27/1983CA1159392A1 Cation exchange membranes
12/27/1983CA1159391A1 Thermoplastic polymer electrolysis diaphragm impregnated with siliceous composition
12/20/1983US4421579 Method of making solid polymer electrolytes and electrode bonded with hydrophyllic fluorocopolymers
12/20/1983CA1159017A1 Method for sealing jointing part in vertical cell for alkali metal chloride electrolysis
12/20/1983CA1159016A1 Cladding cathode of electrolytic cell with diaphragm or membrane
11/1983
11/23/1983EP0094772A2 Electrolytic cell and gasket for electrolytic cell
11/23/1983EP0094679A2 Process for producing an ion exchange membrane
11/23/1983EP0094587A1 Improved electrolytic cation exchange membrane
11/22/1983US4416757 Coated thermoplastic polymer diaphragms and a method for their preparation
11/15/1983US4415679 Process for esterifying fluorinated carboxylic acid polymer
11/09/1983EP0093435A1 Electrolytic purification and reconcentration of wash and rinse caustic solutions recovered from the regeneration of ion exchange resins
11/09/1983EP0093114A1 Cation exchange membrane with high equivalent weight component.
11/08/1983US4414338 Cation exchange membrane
11/08/1983CA1156605A1 Diaphragm having zirconium and magnesium compounds in a porous matrix
10/1983
10/25/1983US4411759 For purification of swimming pools
10/25/1983US4411749 Process for electrolyzing aqueous solution of alkali metal chloride
10/25/1983CA1155801A2 Conductive membrane of polyfluoro-allyloxy copolymers
10/18/1983US4410638 Diaphragm for electrolysis and process for the preparation thereof by polymerizing in fluorinated milroporous membrane
10/18/1983US4410411 Slurry of asbestos and thermoplastic fluorine containing polymers
10/11/1983US4409084 Electrolytic cell for ion exchange membrane method
09/1983
09/06/1983US4402816 Diaphragm structure for electrolytic cells for the electrolysis of aqueous salt solutions
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