| Patents for C25B 13 - Diaphragms; Spacing elements (2,681) |
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| 03/29/1989 | EP0309259A2 Immobilized electrolyte membrane and method of preparation thereof |
| 03/07/1989 | US4810345 Valve metal oxide, asbestos, heat treatment, curing |
| 03/01/1989 | EP0305155A2 A reinforced ion exchange membrane and a process for producing the same |
| 02/21/1989 | US4806214 Method of preparing an asbestos diaphragm |
| 02/14/1989 | US4804449 With a woven non-ionic modacrylic fiber diaphragm, nacl, naoh for water treatment; swimming pools |
| 02/07/1989 | US4802960 Controlling ionic movement; positioning screen electrode within separator |
| 02/01/1989 | EP0188486B1 New ionic fluorinated polymer, preparation process thereof and electrolysis membranes formed from said polymer |
| 01/18/1989 | EP0299881A1 Diaphragm woven from polyvinylchloride; method for making it and its use in the electrolysis of hydrogen chloric acid |
| 01/04/1989 | EP0297316A1 Device for carrying current to the porous anode of a bipolar plate in a cell stack of the filter press type |
| 01/04/1989 | EP0297315A2 Process for preparing a composite from a cermet layer and a porous metal layer on one or both sides of the cermet layer for a diaphragm with an electrode |
| 12/28/1988 | EP0296425A1 Porous separatory member entirely made of polyphenylene sulfide for the electrolysis of water |
| 12/21/1988 | CN88100785A Gel-type chelating resins and process for removal of multi-valent, alkaline earth or heavy metal cations from solutions |
| 12/20/1988 | US4792388 Electrolysis method of electrolyzing halides |
| 12/20/1988 | CA1247049A1 Unreinforced membrane, electrochemical cell and electrolysis process |
| 12/20/1988 | CA1247048A1 Reinforced membrane, electrochemical cell and electrolysis process |
| 12/06/1988 | CA1246140A1 Coke filled separator plate for electrochemical cells |
| 11/17/1988 | EP0291039A1 Separator film for an electrolytic cell for moderately tritiated acid water and process for its fabrication |
| 11/15/1988 | US4784875 Electrolytic cells with polymer separator mesh |
| 11/15/1988 | US4784741 Electrolytic cell and gasket |
| 10/11/1988 | US4776940 Gasket assembly for membrane electrolysis cells |
| 10/04/1988 | US4775551 Consolidating fiber matrix with latex binder |
| 10/04/1988 | CA1242670A1 Removing anion from organic compound in four-chamber electrolytic cell with ion exchange membranes |
| 10/04/1988 | CA1242555A1 Production of ion-exchange membrane |
| 09/27/1988 | US4773982 Electrolyzer with sandwich arrangement of diaphragm and electrodes and method of producing the sandwich arrangement |
| 09/13/1988 | US4770757 Edge reinforcement of membranes for chlor-alkali cells |
| 09/13/1988 | US4770756 Cation exchange membranes, separators |
| 08/31/1988 | EP0280359A1 Gasket for the electrode frames of a membrane electrolyser |
| 08/31/1988 | EP0097646B1 Coextruded multilayer cation exchange membranes |
| 08/17/1988 | EP0278411A2 Gel-type chelating resins and a process for removal of multivalent, alkaline earth or heavy metal cations from solutions |
| 07/05/1988 | US4755540 Polymer membrane |
| 06/22/1988 | EP0272214A2 Improved diaphragm for an electrolytic cell |
| 06/21/1988 | US4752369 Separating electrodes from permselective membrane by spacing which is porous, hydrophilic and electrically non-conductive |
| 06/14/1988 | US4750525 End closure for flexible plastic tubes |
| 06/07/1988 | CA1237681A1 End closure for flexible plastic tubes |
| 05/03/1988 | US4741813 Diaphragm for an electrolytic cell |
| 04/13/1988 | EP0263159A1 Composite membrane. |
| 03/30/1988 | EP0261827A1 Electrolytic cell and gasket |
| 03/29/1988 | CA1234551A1 Laminated electrolytic cation exchange membrane including fluorinated polymer with carboxylic acid groups |
| 02/16/1988 | CA1232871A1 Low ohmic resistance membranes adaptable to alkaline electrolysis apparatus |
| 02/09/1988 | US4724191 Bonded hydrogen conducting solid electrolytes |
| 01/19/1988 | US4720334 Diaphragm for electrolytic cell |
| 01/13/1988 | EP0252604A1 Diaphragm for electrolytic or electrochemical cells |
| 12/15/1987 | US4713163 Porous diaphragm for electrolytic cell |
| 12/01/1987 | US4710278 Of an organic polymer and heteropoly acid or salt mixtures |
| 11/17/1987 | US4707228 Diaphragm for electrolytic and electrochemical cells |
| 10/22/1987 | WO1987006395A1 Composite membrane |
| 10/20/1987 | US4701250 Hydraulically permeable chlor-alkali-electrolytic cell |
| 10/07/1987 | CN87100195A Improved ion-permeable diaphragms for electrolytic cells |
| 09/16/1987 | CN86108792A 改进的固体聚合物电解质电极 Improved solid polymer electrolyte electrode |
| 09/15/1987 | CA1226849A1 Porous diaphragm for electrolytic cell |
| 09/02/1987 | EP0234619A1 Method for preparing a diaphragm and diaphragm prepared according to this method |
| 09/02/1987 | CN86108928A Method useing liquid or solvent for manufacturing improved electrolyte-electrode of solid polymer |
| 08/25/1987 | US4689134 Non ion selective membrane in an EAVF system |
| 08/19/1987 | EP0232923A1 Improved ion-permeable diaphragms for electrolytic cells |
| 08/18/1987 | CA1225615A1 Process for electrolyzing aqueous solution of alkali metal chloride |
| 08/11/1987 | US4686026 Method of installation of membrane to electrolytic cell |
| 07/29/1987 | CN86108477A Method for producing alkali metal hydoxide and electrolytic, cell useful for the method |
| 07/28/1987 | US4683041 Process for electrolysis of sodium chloride |
| 07/28/1987 | US4683040 Process for electrolysis of sodium chloride |
| 07/22/1987 | EP0229321A1 Method for producing an alkali metal hydroxide and electrolytic cell useful for the method |
| 07/15/1987 | EP0228602A1 A method for making an improved solid polymer electrolyte electrode using a liquid or solvent |
| 07/14/1987 | US4680101 Polymeric metal oxide, polyfluorocarbon, perfluorinated ion exchange material |
| 07/14/1987 | CA1224184A1 Cation exchange membrane with high equivalent weight component |
| 07/01/1987 | EP0226911A1 An improved solid polymer electrolyte electrode |
| 06/30/1987 | CA1223408A1 Production of ion exchange membrane |
| 05/20/1987 | EP0222671A1 Microporous material, process for its preparation and its uses, especially in producing cathodic elements |
| 05/19/1987 | US4666573 Electrolytic cells |
| 05/13/1987 | CN85108131A Non-organic/polymer fiber composite, method of making same and use including dimensionally stable separator |
| 05/12/1987 | US4665120 Blend of fluoropolymer fibers and particles |
| 05/12/1987 | US4664761 Fuel cells |
| 05/05/1987 | US4663012 Polysulfones, polyethersulfones, polybenzimidazoles |
| 04/28/1987 | US4661218 Ion exchange membrane cell and electrolysis with use thereof |
| 04/21/1987 | US4659744 Cationic polymer containing sulfonamide groups and quaternary ammonium salts |
| 04/14/1987 | USRE32398 Electrolytic process and electrolytic cell for the preparation of organic compounds |
| 04/07/1987 | US4655887 Process for electrolyzing aqueous solution of alkali metal chloride |
| 04/01/1987 | EP0216428A1 Porous diaphragm for electrochemical cell |
| 03/31/1987 | US4654137 Multicompartmented cell with freely-extendible tubular membrane |
| 03/25/1987 | CN85105696A Pre-expanded ion exchange membranes |
| 03/24/1987 | US4652356 Particles bonded on surface of membrane |
| 03/11/1987 | EP0214066A1 Consolidated microporous material, process for its preparation and its applications, particularly to producing cathode elements |
| 03/10/1987 | CA1218959A1 Ion-exchange membrane electrolytic apparatus and process for producing the same |
| 03/03/1987 | US4647360 Inert carbon fiber diaphragm |
| 02/17/1987 | US4643956 Coke filled separator plate for electrochemical cells |
| 01/13/1987 | US4636291 Fine-pored ceramic with projections |
| 12/30/1986 | EP0206969A2 Bonded hydrogen conducting solid electrolytes |
| 12/30/1986 | EP0206032A1 Electrolyser with a diaphragm electrode sandwich assembly, and assembling apparatus suited therefor |
| 12/09/1986 | US4627897 Process for the electrolysis of liquid electrolytes using film flow techniques |
| 12/04/1986 | WO1986007075A1 Novel fluoropolymer solutions |
| 12/03/1986 | EP0203657A2 Electrochemical cells construction comprising electrodes and spacers |
| 12/03/1986 | EP0203656A2 Unitary separator-spacer for electrochemical cell, and electrochemical cell construction using such spacer(s) |
| 12/03/1986 | EP0203577A2 Novel fluoropolymer solutions |
| 12/02/1986 | US4626553 Cation exchange membrane of a fluorocarbon polymer and a process for preparing the same |
| 12/02/1986 | US4625440 Tentering frame for sheet-like members |
| 11/20/1986 | EP0202002A1 Multicompartmented cell with freely-extendible tubular membrane |
| 11/12/1986 | CA1213856A Cation exchange membrane and method of preparation thereof |
| 10/29/1986 | EP0199462A1 End closure for flexible plastic tubes |
| 10/14/1986 | US4617163 Fluoropolymers with quaternary ammonium cations and fixed sulfonic, carboxylic or phosphonic anionic groups; stretching; electrolysis of t |
| 10/08/1986 | EP0196317A1 Non-organic/polymer fiber composite, method of making same and use including dimensionally stable separator. |
| 09/23/1986 | US4613467 Fluorosulfonated carboxylic acid derivative as intermediate for cation exchange membrane copolymer |
| 09/03/1986 | EP0192926A1 Separator film for an alkaline electrolytic cell, and manufacturing process thereof |