CA2176560A1 - Method for making reinforced ion exchange membranes - Google Patents
Method for making reinforced ion exchange membranesInfo
- Publication number
- CA2176560A1 CA2176560A1 CA002176560A CA2176560A CA2176560A1 CA 2176560 A1 CA2176560 A1 CA 2176560A1 CA 002176560 A CA002176560 A CA 002176560A CA 2176560 A CA2176560 A CA 2176560A CA 2176560 A1 CA2176560 A1 CA 2176560A1
- Authority
- CA
- Canada
- Prior art keywords
- ion exchange
- exchange membranes
- membrane
- applying
- making reinforced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
- C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
- C08J5/2275—Heterogeneous membranes
- C08J5/2281—Heterogeneous membranes fluorine containing heterogeneous membranes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
- H01M8/1023—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1039—Polymeric electrolyte materials halogenated, e.g. sulfonated polyvinylidene fluorides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1041—Polymer electrolyte composites, mixtures or blends
- H01M8/1053—Polymer electrolyte composites, mixtures or blends consisting of layers of polymers with at least one layer being ionically conductive
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1058—Polymeric electrolyte materials characterised by a porous support having no ion-conducting properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
- H01M8/1086—After-treatment of the membrane other than by polymerisation
- H01M8/1088—Chemical modification, e.g. sulfonation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
- H01M8/1086—After-treatment of the membrane other than by polymerisation
- H01M8/109—After-treatment of the membrane other than by polymerisation thermal other than drying, e.g. sintering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
- H01M8/1086—After-treatment of the membrane other than by polymerisation
- H01M8/1093—After-treatment of the membrane other than by polymerisation mechanical, e.g. pressing, puncturing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0088—Composites
- H01M2300/0094—Composites in the form of layered products, e.g. coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
- Y10T428/31544—Addition polymer is perhalogenated
Abstract
A method for making a composite fluorinated ion exchange membrane is provided comprising applying a continuous fluorinated ion exchange polymer film to a porous reinforcing substrate, preferably made from a polyolefin such as linear high density polyethylene. The composite membrane is made by applying a solvent to the surface of the film and/or the substrate and then affixing the reinforcing substrate.
These reinforced membrane may advantageously be used as separators in fuel cells, and as selective barriers in permeation separation and facilitated transport operations.
These reinforced membrane may advantageously be used as separators in fuel cells, and as selective barriers in permeation separation and facilitated transport operations.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/168,869 | 1993-12-14 | ||
US08/168,869 US5447636A (en) | 1993-12-14 | 1993-12-14 | Method for making reinforced ion exchange membranes |
PCT/US1994/014366 WO1995016730A1 (en) | 1993-12-14 | 1994-12-13 | Method for making reinforced ion exchange membranes |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2176560A1 true CA2176560A1 (en) | 1995-06-22 |
CA2176560C CA2176560C (en) | 2005-02-22 |
Family
ID=22613281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002176560A Expired - Fee Related CA2176560C (en) | 1993-12-14 | 1994-12-13 | Method for making reinforced ion exchange membranes |
Country Status (6)
Country | Link |
---|---|
US (1) | US5447636A (en) |
EP (1) | EP0734410B1 (en) |
JP (1) | JP3369569B2 (en) |
CA (1) | CA2176560C (en) |
DE (1) | DE69408870T2 (en) |
WO (1) | WO1995016730A1 (en) |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0651455B1 (en) * | 1993-10-07 | 1997-07-30 | Matsushita Electric Industrial Co., Ltd. | Manufacturing method of a separator for a lithium secondary battery and an organic electrolyte lithium secondary battery using the same separator |
USRE37433E1 (en) | 1993-11-22 | 2001-11-06 | E. I. Du Pont De Nemours And Company | Electrochemical conversion of anhydrous hydrogen halide to halogen gas using a membrane-electrode assembly or gas diffusion electrodes |
US6180163B1 (en) | 1993-11-22 | 2001-01-30 | E. I. Du Pont De Nemours And Company | Method of making a membrane-electrode assembly |
US5798036A (en) | 1993-11-22 | 1998-08-25 | E. I. Du Pont De Nemours And Company | Electrochemical conversion of anhydrous hydrogen halide to halogens gas using a membrane-electrode assembly or gas diffusion electrodes |
US5547551A (en) * | 1995-03-15 | 1996-08-20 | W. L. Gore & Associates, Inc. | Ultra-thin integral composite membrane |
USRE37307E1 (en) | 1994-11-14 | 2001-08-07 | W. L. Gore & Associates, Inc. | Ultra-thin integral composite membrane |
US5599614A (en) * | 1995-03-15 | 1997-02-04 | W. L. Gore & Associates, Inc. | Integral composite membrane |
USRE37701E1 (en) * | 1994-11-14 | 2002-05-14 | W. L. Gore & Associates, Inc. | Integral composite membrane |
US6054230A (en) * | 1994-12-07 | 2000-04-25 | Japan Gore-Tex, Inc. | Ion exchange and electrode assembly for an electrochemical cell |
KR100269676B1 (en) * | 1995-03-03 | 2000-10-16 | 야마모토 카즈모토 | Microporous Polyethylene Film and Process for Producing the Film |
US5746954A (en) * | 1995-09-07 | 1998-05-05 | The Dow Chemical Company | Processes for forming thin, durable coatings of perfluorocarbon ionomers on various substrate materials |
GB9607398D0 (en) * | 1996-04-10 | 1996-06-12 | Nat Power Plc | Process for the fabrication of electrochemical cell components |
GB9708365D0 (en) * | 1997-04-25 | 1997-06-18 | Johnson Matthey Plc | Proton conducting membranes |
US6110333A (en) * | 1997-05-02 | 2000-08-29 | E. I. Du Pont De Nemours And Company | Composite membrane with highly crystalline porous support |
US5985475A (en) * | 1997-06-17 | 1999-11-16 | Aer Energy Resources, Inc. | Membrane for selective transport of oxygen over water vapor and metal-air electrochemical cell including said membrane |
US6635384B2 (en) | 1998-03-06 | 2003-10-21 | Gore Enterprise Holdings, Inc. | Solid electrolyte composite for electrochemical reaction apparatus |
WO1999027590A1 (en) * | 1997-11-25 | 1999-06-03 | California Institute Of Technology | Fuel cell elements with improved water handling capacity |
US6291091B1 (en) | 1997-12-24 | 2001-09-18 | Ballard Power Systems Inc. | Continuous method for manufacturing a Laminated electrolyte and electrode assembly |
US6495209B1 (en) | 1998-02-20 | 2002-12-17 | Lynntech, Inc. | Process of making a composite membrane |
US6458257B1 (en) | 1999-02-09 | 2002-10-01 | Lynntech International Ltd | Microorganism control of point-of-use potable water sources |
EP1090436A1 (en) * | 1999-04-20 | 2001-04-11 | Lynntech, Inc. | Process of making a composite menbrane |
US6277512B1 (en) | 1999-06-18 | 2001-08-21 | 3M Innovative Properties Company | Polymer electrolyte membranes from mixed dispersions |
GB9914499D0 (en) | 1999-06-22 | 1999-08-25 | Johnson Matthey Plc | Non-woven fibre webs |
DE19951936A1 (en) * | 1999-10-28 | 2001-05-10 | Forschungszentrum Juelich Gmbh | Production of catalyst layers on membranes for low-temperature fuel cells |
US6492012B1 (en) * | 2000-02-02 | 2002-12-10 | Tilak M. Shah | Polymer penetrated porous substrates |
NL1014402C1 (en) * | 2000-02-17 | 2001-08-20 | Nedstack Holding B V | Method for Manufacturing Reinforced Polymer Membranes Electrolyte Fuel Cells. |
US6860976B2 (en) | 2000-06-20 | 2005-03-01 | Lynntech International, Ltd. | Electrochemical apparatus with retractable electrode |
DE60139575D1 (en) | 2000-12-12 | 2009-09-24 | Tersano Inc | DEVICE FOR PRODUCING AND APPLYING OZONIZED WATER |
WO2002062879A1 (en) * | 2001-02-07 | 2002-08-15 | Asahi Kasei Kabushiki Kaisha | Ion-exchange fluororesin membrane |
ITMI20010383A1 (en) * | 2001-02-26 | 2002-08-26 | Ausimont Spa | POROUS HYDROPHILIC MEMBRANES |
PT1381435E (en) * | 2001-04-17 | 2012-09-06 | Light Wave Ltd | Contoured variably tensionable soft membrane ride surface for ride attraction |
US6689501B2 (en) * | 2001-05-25 | 2004-02-10 | Ballard Power Systems Inc. | Composite ion exchange membrane for use in a fuel cell |
US6613203B1 (en) | 2001-09-10 | 2003-09-02 | Gore Enterprise Holdings | Ion conducting membrane having high hardness and dimensional stability |
US6824909B2 (en) * | 2002-07-09 | 2004-11-30 | General Motors Corporation | Low-humidification and durable fuel cell membrane |
TW571455B (en) * | 2002-12-31 | 2004-01-11 | Ind Tech Res Inst | Layered proton exchange membrane and method for preparing the same |
US7547255B2 (en) * | 2004-01-07 | 2009-06-16 | Light Wave, Ltd. | Contoured variably tensionable soft membrane ride surface for ride attraction |
TWI276654B (en) * | 2004-02-18 | 2007-03-21 | Ind Tech Res Inst | Proton exchange membrane (PEM) with different molecular permeation rates |
US20070131611A1 (en) * | 2005-12-13 | 2007-06-14 | General Electric Company | Membrane-based article and associated method |
US20070131610A1 (en) * | 2005-12-13 | 2007-06-14 | General Electric Company | Membrane-based apparatus and associated method |
WO2008095509A1 (en) * | 2007-02-05 | 2008-08-14 | Redstack B.V. | Reinforced ion-exchange membrane comprised of a support, and laminated thereon, a polymeric film |
US8550926B2 (en) * | 2007-03-09 | 2013-10-08 | Thomas J. Lochtefeld | Padded water ride surfaces |
US8883297B2 (en) * | 2008-10-10 | 2014-11-11 | Imergy Power Systems, Inc. | Methods for bonding porous flexible membranes using solvent |
US9550127B2 (en) | 2013-03-21 | 2017-01-24 | Thomas J. Lochtefeld | Padded grate drainage system for water rides |
AU2010286605B2 (en) | 2009-08-26 | 2015-08-13 | Evoqua Water Technologies Pte. Ltd. | Ion exchange membranes |
CA2779049C (en) * | 2009-10-26 | 2014-11-25 | Asahi Kasei Chemicals Corporation | Cation exchange membrane, electrolysis vessel using the same and method for producing cation exchange membrane |
EP2627436B1 (en) | 2010-10-15 | 2018-01-17 | Evoqua Water Technologies LLC | Process for making a monomer solution for making cation exchange membranes |
EP2627447B1 (en) | 2010-10-15 | 2019-12-11 | Evoqua Water Technologies LLC | Anion exchange membranes and process for making |
US20120122016A1 (en) * | 2010-11-15 | 2012-05-17 | Gm Global Technology Operations, Inc. | Fuel Cell Durability Through Oxide Supported Precious Metals in Membrane |
US8709199B2 (en) * | 2011-09-13 | 2014-04-29 | GM Global Technology Operations LLC | Method of preparing a water vapor transfer membrane |
EP2903737B1 (en) | 2012-10-04 | 2022-05-04 | Evoqua Water Technologies LLC | High-performance anion exchange membranes and methods of making same |
ES2816948T3 (en) | 2012-10-11 | 2021-04-06 | Evoqua Water Tech Llc | Coated ion exchange membranes |
KR102093443B1 (en) * | 2012-11-29 | 2020-03-25 | 삼성전자주식회사 | Capacitive deionization apparatus and methods of treating fluid using the same |
KR102092941B1 (en) | 2013-06-12 | 2020-03-24 | 삼성전자주식회사 | Capacitive deionization apparatus and methods of treating fluid using the same |
US9463390B2 (en) | 2013-10-30 | 2016-10-11 | FlowriderSurf, Ltd. | Inflatable surfing apparatus and method |
US11090573B2 (en) | 2013-10-30 | 2021-08-17 | Whitewater West Industries, Ltd. | Inflatable surfing apparatus and method |
US10195535B2 (en) | 2015-11-12 | 2019-02-05 | Whitewater West Industries Ltd. | Transportable inflatable surfing apparatus and method |
CA2948566C (en) | 2015-11-12 | 2024-01-30 | Whitewater West Industries, Ltd. | Method and apparatus for fastening of inflatable ride surfaces |
JP6427215B2 (en) * | 2017-03-07 | 2018-11-21 | 本田技研工業株式会社 | Method and apparatus for pressing a film molded article for polymer electrolyte fuel cell |
US11273383B2 (en) | 2017-11-10 | 2022-03-15 | Whitewater West Industries Ltd. | Water ride attraction incorporating a standing wave |
KR102090616B1 (en) * | 2018-12-17 | 2020-03-19 | (주) 시온텍 | Manufacturing method for microporous membrane embedded CDI electrode and assembly, microporous membrane embedded CDI electrode and assembly |
CN114555230A (en) | 2019-06-04 | 2022-05-27 | 门布里翁有限公司 | Ceramic cation exchange material |
GB202117685D0 (en) * | 2021-12-08 | 2022-01-19 | Johnson Matthey Fuel Cells Ltd | Method |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB863862A (en) * | 1957-11-20 | 1961-03-29 | Ici Ltd | Improvements in ion exchange materials |
FR1562003A (en) * | 1967-12-29 | 1969-04-04 | ||
US3562139A (en) * | 1968-08-05 | 1971-02-09 | Ionics | Cationic-anionic ion-exchange membrane |
NL160013C (en) * | 1968-11-26 | 1979-09-17 | Du Pont | PROCESS FOR PREPARING SOLUTIONS OF A SULFONYL GROUPS CONTAINING FLUORO CARBON POLYMER. |
US3884885A (en) * | 1973-08-01 | 1975-05-20 | Du Pont | Melt processing of fluorinated polymers |
US4021327A (en) * | 1975-04-29 | 1977-05-03 | E. I. Du Pont De Nemours And Company | Reinforced cation permeable separator |
US4024043A (en) * | 1975-12-31 | 1977-05-17 | Allied Chemical Corporation | Single film, high performance bipolar membrane |
US4083768A (en) * | 1976-05-24 | 1978-04-11 | Allied Chemical Corporation | Preparation of high performance polyelectrolyte membrane |
US4142032A (en) * | 1977-12-29 | 1979-02-27 | Union Carbide Corporation | Process for improving barrier properties of polymers |
JPS5670843A (en) * | 1979-11-13 | 1981-06-13 | Asahi Glass Co Ltd | Adhering method of fluorine containing ion exchange membrane and synthetic resin |
US4518650A (en) * | 1980-07-11 | 1985-05-21 | E. I. Du Pont De Nemours And Company | Protective clothing of fabric containing a layer of highly fluorinated ion exchange polymer |
US4339473A (en) * | 1980-08-28 | 1982-07-13 | Rai Research Corporation | Gamma radiation grafting process for preparing separator membranes for electrochemical cells |
JPS5792028A (en) * | 1980-11-29 | 1982-06-08 | Asahi Chem Ind Co Ltd | Fluorocarbon cation exchange membrane |
US4477321A (en) * | 1981-01-16 | 1984-10-16 | E. I. Du Pont De Nemours And Company | Sacrificial reinforcements in cation exchange membrane |
US4453991A (en) * | 1981-05-01 | 1984-06-12 | E. I. Du Pont De Nemours And Company | Process for making articles coated with a liquid composition of perfluorinated ion exchange resin |
US4468441A (en) * | 1981-10-01 | 1984-08-28 | Rai Research Corp. | Separator membranes for redox-type electrochemical cells |
US4414090A (en) * | 1981-10-01 | 1983-11-08 | Rai Research Corporation | Separator membranes for redox-type electrochemical cells |
US4552631A (en) * | 1983-03-10 | 1985-11-12 | E. I. Du Pont De Nemours And Company | Reinforced membrane, electrochemical cell and electrolysis process |
JPS60501364A (en) * | 1983-03-30 | 1985-08-22 | イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− | Improved electrolysis method for brine containing iodide impurities |
US4686120A (en) * | 1985-02-22 | 1987-08-11 | E. I. Du Pont De Nemours And Company | Multilayer cation exchange membrane |
US4784882A (en) | 1985-05-31 | 1988-11-15 | The Dow Chemical Company | Method for forming composite polymer films |
BR8606704A (en) * | 1985-05-31 | 1987-08-11 | Dow Chemical Co | NEW FLUOROPOLIMERIC SOLUTIONS |
JPS62280230A (en) * | 1986-05-30 | 1987-12-05 | Asahi Glass Co Ltd | Reinforced multilayer ion exchange diaphragm |
JPS62280231A (en) * | 1986-05-30 | 1987-12-05 | Asahi Glass Co Ltd | Novel multilayer diaphragm |
US4731263A (en) * | 1986-09-26 | 1988-03-15 | The Dow Chemical Company | Method for the preparation of ionomer films |
US4954388A (en) * | 1988-11-30 | 1990-09-04 | Mallouk Robert S | Fabric reinforced composite membrane |
US4990228A (en) | 1989-02-28 | 1991-02-05 | E. I. Du Pont De Nemours And Company | Cation exchange membrane and use |
BR9000773A (en) * | 1989-02-28 | 1991-01-22 | Du Pont | PROCESS FOR THE MANUFACTURE OF A CATIO EXCHANGE MEMBRANE; PROCESS FOR THE MANUFACTURE OF A COATED FABRIC; PROCESS FOR THE MANUFACTURE OF A COATED YARN; CATION EXCHANGE MEMBRANE; PERFECT PROCESS FOR THE ELECTROLYSIS OF AN ALKALINE METAL HALIDE; CATION EXCHANGE FABRIC AND CATION EXCHANGE YARN |
US5273694A (en) * | 1992-08-28 | 1993-12-28 | E. I. Du Pont De Nemours And Company | Process for making ion exchange membranes and films |
-
1993
- 1993-12-14 US US08/168,869 patent/US5447636A/en not_active Expired - Lifetime
-
1994
- 1994-12-13 CA CA002176560A patent/CA2176560C/en not_active Expired - Fee Related
- 1994-12-13 DE DE69408870T patent/DE69408870T2/en not_active Expired - Fee Related
- 1994-12-13 JP JP51692095A patent/JP3369569B2/en not_active Expired - Fee Related
- 1994-12-13 WO PCT/US1994/014366 patent/WO1995016730A1/en active IP Right Grant
- 1994-12-13 EP EP95905934A patent/EP0734410B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0734410B1 (en) | 1998-03-04 |
JPH09506662A (en) | 1997-06-30 |
DE69408870D1 (en) | 1998-04-09 |
CA2176560C (en) | 2005-02-22 |
WO1995016730A1 (en) | 1995-06-22 |
DE69408870T2 (en) | 1998-09-17 |
JP3369569B2 (en) | 2003-01-20 |
US5447636A (en) | 1995-09-05 |
EP0734410A1 (en) | 1996-10-02 |
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