FR2393015A1 - Membrane echangeuse de cations en polymere fluore, contenant des fibrilles de polytetrafluoroethylene destinee a l'electrolyse et preparation de cette membrane - Google Patents

Membrane echangeuse de cations en polymere fluore, contenant des fibrilles de polytetrafluoroethylene destinee a l'electrolyse et preparation de cette membrane

Info

Publication number
FR2393015A1
FR2393015A1 FR7815327A FR7815327A FR2393015A1 FR 2393015 A1 FR2393015 A1 FR 2393015A1 FR 7815327 A FR7815327 A FR 7815327A FR 7815327 A FR7815327 A FR 7815327A FR 2393015 A1 FR2393015 A1 FR 2393015A1
Authority
FR
France
Prior art keywords
membrane
electrolysis
preparation
intended
fibrilles
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
Application number
FR7815327A
Other languages
English (en)
Other versions
FR2393015B1 (fr
Inventor
Hiroshi Ukihashi
Tatsuro Asawa
Tomoki Gunjima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Publication of FR2393015A1 publication Critical patent/FR2393015A1/fr
Application granted granted Critical
Publication of FR2393015B1 publication Critical patent/FR2393015B1/fr
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/01Products
    • C25B1/34Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C25B1/46Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20Manufacture of shaped structures of ion-exchange resins
    • C08J5/22Films, membranes or diaphragms
    • C08J5/2206Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20Manufacture of shaped structures of ion-exchange resins
    • C08J5/22Films, membranes or diaphragms
    • C08J5/2206Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
    • C08J5/2218Synthetic macromolecular compounds
    • C08J5/2231Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
    • C08J5/2237Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds containing fluorine
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00Compositions 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; Compositions of derivatives of such polymers
    • C08L27/02Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18Homopolymers or copolymers or tetrafluoroethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00Characterised 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
    • C08J2327/02Characterised 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
    • C08J2327/12Characterised 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
    • C08J2327/18Homopolymers or copolymers of tetrafluoroethylene
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/3154Of fluorinated addition polymer from unsaturated monomers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

a. Membrane échangeuse de cations en polymère fluoré, contenant des fibrilles de polytétrafluoroéthylène, destinée à l'électrolyse et préparation de cette membrane. b. On forme une membrane échangeuse de cations en incorporant des fibrilles de polytétrafluoroéthylène dans une résine échangeuse de cations en polymère fluoré qui comporte des groupes acides carboxyliques ou des groupes fonctionnels transformables en groupes acides carboxyliques. c. Membrane possédant d'excellentes propriétés électrochimiques et mécaniques, trouvant son application dans la production de soude et de chlore.
FR7815327A 1977-06-03 1978-05-23 Membrane echangeuse de cations en polymere fluore, contenant des fibrilles de polytetrafluoroethylene destinee a l'electrolyse et preparation de cette membrane Granted FR2393015A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6490077A JPS53149881A (en) 1977-06-03 1977-06-03 Strengthened cation exchange resin membrane and production thereof

Publications (2)

Publication Number Publication Date
FR2393015A1 true FR2393015A1 (fr) 1978-12-29
FR2393015B1 FR2393015B1 (fr) 1983-02-25

Family

ID=13271400

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7815327A Granted FR2393015A1 (fr) 1977-06-03 1978-05-23 Membrane echangeuse de cations en polymere fluore, contenant des fibrilles de polytetrafluoroethylene destinee a l'electrolyse et preparation de cette membrane

Country Status (7)

Country Link
US (2) US4255523A (fr)
JP (1) JPS53149881A (fr)
DE (1) DE2822493A1 (fr)
FR (1) FR2393015A1 (fr)
GB (1) GB1590357A (fr)
IT (1) IT1098304B (fr)
NL (1) NL7811606A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498197A1 (fr) * 1981-01-16 1982-07-23 Du Pont Membrane echangeuse d'ions, cellule electrochimique et procede d'electrolyse mettant en oeuvre cette membrane
EP0189056A1 (fr) * 1985-01-18 1986-07-30 Asahi Glass Company Ltd. Méthode pour rétablir le rendement du courant

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444640A (en) * 1980-09-22 1984-04-24 Diamond Shamrock Corporation Dimensionally stable asbestos-polytetrafluoroethylene diaphragms for chloralkali electrolytic cells
WO1982002564A1 (fr) * 1981-01-16 1982-08-05 Pont Du Renforcement de protection dans une membrane echangeuse de cations
US4454247A (en) * 1981-12-14 1984-06-12 E. I. Du Pont De Nemours & Company Ion exchange membranes
JPS58201823A (ja) * 1982-05-18 1983-11-24 Asahi Glass Co Ltd イオン交換膜の製造方法
JPS58199884A (ja) * 1982-05-18 1983-11-21 Asahi Glass Co Ltd 改良された電解用陽イオン交換膜
JPS58204189A (ja) * 1982-05-21 1983-11-28 Asahi Glass Co Ltd 改良された電解用陽イオン交換膜
US4520170A (en) * 1982-09-20 1985-05-28 E. I. Du Pont De Nemours And Company Method for reinforcing perfluoroelastomer compositions
US4610764A (en) * 1984-02-07 1986-09-09 Asahi Glass Company Ltd. Electrolytic cation exchange membrane
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
US6254978B1 (en) * 1994-11-14 2001-07-03 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
US6503988B1 (en) * 1995-11-09 2003-01-07 Daikin Industries, Ltd. Polytetrafluoroethylene fine powders and their use
JPH1092444A (ja) 1996-09-13 1998-04-10 Japan Gore Tex Inc 電気化学反応装置用固体高分子電解質複合体及びそれを用いた電気化学反応装置
US6110333A (en) * 1997-05-02 2000-08-29 E. I. Du Pont De Nemours And Company Composite membrane with highly crystalline porous support
US6635384B2 (en) 1998-03-06 2003-10-21 Gore Enterprise Holdings, Inc. Solid electrolyte composite for electrochemical reaction apparatus
KR100734765B1 (ko) 2000-02-15 2007-07-06 다우 글로벌 테크놀로지스 인크. 폴리우레탄 제품의 제조방법
JP3920779B2 (ja) 2001-02-13 2007-05-30 旭化成ケミカルズ株式会社 フッ素系イオン交換樹脂前駆体組成物とその製法
ITMI20011745A1 (it) * 2001-08-09 2003-02-09 Ausimont Spa Processo per impregnare supporti
US6613203B1 (en) 2001-09-10 2003-09-02 Gore Enterprise Holdings Ion conducting membrane having high hardness and dimensional stability
JP3983259B2 (ja) * 2003-06-27 2007-09-26 旭化成ケミカルズ株式会社 高耐久性を有する高分子電解質膜およびその製造方法
EP1666508B1 (fr) 2003-09-10 2015-06-10 Asahi Kasei E-materials Corporation Fluoropolymere stabilise et son procede de production
US7071271B2 (en) * 2003-10-30 2006-07-04 3M Innovative Properties Company Aqueous emulsion polymerization of functionalized fluoromonomers
US7074841B2 (en) 2003-11-13 2006-07-11 Yandrasits Michael A Polymer electrolyte membranes crosslinked by nitrile trimerization
US7259208B2 (en) * 2003-11-13 2007-08-21 3M Innovative Properties Company Reinforced polymer electrolyte membrane
US7265162B2 (en) * 2003-11-13 2007-09-04 3M Innovative Properties Company Bromine, chlorine or iodine functional polymer electrolytes crosslinked by e-beam
US7179847B2 (en) 2003-11-13 2007-02-20 3M Innovative Properties Company Polymer electrolytes crosslinked by e-beam
US7060756B2 (en) * 2003-11-24 2006-06-13 3M Innovative Properties Company Polymer electrolyte with aromatic sulfone crosslinking
US7112614B2 (en) * 2003-12-08 2006-09-26 3M Innovative Properties Company Crosslinked polymer
US7060738B2 (en) 2003-12-11 2006-06-13 3M Innovative Properties Company Polymer electrolytes crosslinked by ultraviolet radiation
US7832171B2 (en) * 2003-12-12 2010-11-16 Dennis Erickson Construction framing system and track therefor
US7173067B2 (en) 2003-12-17 2007-02-06 3M Innovative Properties Company Polymer electrolyte membranes crosslinked by direct fluorination
US7662498B2 (en) * 2004-04-23 2010-02-16 Asahi Kasei Chemicals Corporation Polymer electrolyte composition containing aromatic hydrocarbon-based resin
WO2007089017A1 (fr) 2006-02-03 2007-08-09 Daikin Industries, Ltd. Procede de production de fluoropolymere contenant un groupe –so3h et fluoropolymere contenant un groupe –so3h
EP2128919B1 (fr) 2007-02-21 2016-05-11 Asahi Kasei E-materials Corporation Composition de polyélectrolyte, membrane polyélectrolytique, ensemble membrane-électrode, et pile à combustible à électrode polymère solide
DK2270818T3 (da) 2008-03-19 2020-06-15 Asahi Chemical Ind Polyelektrolyt og fremgangsmåde til fremstilling af polyelektrolytten
JP2012531534A (ja) 2009-06-25 2012-12-10 テキサス リサーチ インターナショナル,インク. 新規なポリ尿素系繊維
CN102498168B (zh) 2009-09-18 2014-09-10 旭化成电子材料株式会社 电解质乳液及其制造方法
CN102596411B (zh) 2009-10-26 2014-11-05 旭化成化学株式会社 阳离子交换膜、使用该阳离子交换膜的电解槽和阳离子交换膜的制造方法
JP6332792B2 (ja) 2014-03-26 2018-05-30 国立研究開発法人宇宙航空研究開発機構 水電解方法及び水電解装置
JPWO2018155598A1 (ja) 2017-02-23 2019-12-19 旭化成株式会社 組成物、複合膜、膜電極接合体
WO2018207325A1 (fr) 2017-05-11 2018-11-15 旭化成株式会社 Membrane électrolytique à polymère, ensemble électrodes à membrane, et pile à combustible à polymère solide
CN109908973B (zh) * 2019-03-28 2022-01-11 安徽大学 一种胶乳型互穿网络聚合物阳离子交换膜的制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2139646A1 (de) * 1970-08-13 1972-02-17 Yussa Battery Co Ltd Scheidewand und Verfahren zur Herstel lung derselben
FR2276401A1 (fr) * 1974-06-25 1976-01-23 Ici Ltd Procede de fabrication d'un diaphragme poreux
JPS5146589A (en) * 1974-10-21 1976-04-21 Kureha Chemical Ind Co Ltd Shinkinakozo ojusuru ionkokanmaku oyobi sono seizoho
FR2307058A1 (fr) * 1975-04-10 1976-11-05 Basf Wyandotte Corp Diaphragmes constitues par des fibres thermoplastiques separees non liees ou non collees

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936301A (en) * 1956-11-15 1960-05-10 Du Pont Polytetrafluoroethylene granular powders
US3027601A (en) * 1957-07-22 1962-04-03 Minnesota Mining & Mfg Polytetrafluoroethylene films and method for making same
US3960651A (en) * 1963-10-14 1976-06-01 Daikin Kogyo Co., Ltd. Reinforced air-pervious polytetrafluorothylene sheet
US3365355A (en) * 1964-04-29 1968-01-23 Pennsalt Chemicals Corp Tetrafluoroethylene polymer articles having one readily cementable surface containing glass particles
US3849243A (en) * 1971-11-08 1974-11-19 Du Pont Laminates of support material and fluorinated polymer containing pendant side chains containing sulfonyl groups
US3853720A (en) * 1972-10-24 1974-12-10 Ppg Industries Inc Electrolysis of brine using permeable membranes comprising fluorocarbon copolymers
JPS551351B2 (fr) * 1974-03-07 1980-01-12
US3962373A (en) * 1974-10-21 1976-06-08 Allied Chemical Corporation Compositions of 3,3,3-trifluoro-2-trifluoromethyl propene/vinylidene fluoride copolymer and polytetrafluoroethylene
JPS5224176A (en) * 1975-07-09 1977-02-23 Asahi Chem Ind Co Ltd Cathion exchange membrane
JPS5224177A (en) * 1975-07-09 1977-02-23 Asahi Chem Ind Co Ltd Manufacturing method of fluorocarbon cathion exchange membrane
IT1061477B (it) * 1975-07-09 1983-02-28 Asahi Chemical Ind Membrana scambiatrice di cationi sua preparazione e suo impiego
JPS5223192A (en) * 1975-08-15 1977-02-21 Asahi Glass Co Ltd Preparation of improved fluoropolymer bearing cation exchange groups
JPS5224994A (en) * 1975-08-22 1977-02-24 Asahi Glass Co Ltd Process for producingfluorine-containing cation exchange membrane
GB1518387A (en) * 1975-08-29 1978-07-19 Asahi Glass Co Ltd Fluorinated cation exchange membrane and use thereof in electrolysis of an alkali metal halide
US4056934A (en) * 1975-09-27 1977-11-08 Toyota Jidosha Kogyo Kabushiki Kaisha After-burning preventive and flame-out apparatus
JPS5248598A (en) * 1975-10-17 1977-04-18 Asahi Glass Co Ltd Method for producing alkali hydroxide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2139646A1 (de) * 1970-08-13 1972-02-17 Yussa Battery Co Ltd Scheidewand und Verfahren zur Herstel lung derselben
FR2276401A1 (fr) * 1974-06-25 1976-01-23 Ici Ltd Procede de fabrication d'un diaphragme poreux
JPS5146589A (en) * 1974-10-21 1976-04-21 Kureha Chemical Ind Co Ltd Shinkinakozo ojusuru ionkokanmaku oyobi sono seizoho
FR2307058A1 (fr) * 1975-04-10 1976-11-05 Basf Wyandotte Corp Diaphragmes constitues par des fibres thermoplastiques separees non liees ou non collees

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CA1976 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498197A1 (fr) * 1981-01-16 1982-07-23 Du Pont Membrane echangeuse d'ions, cellule electrochimique et procede d'electrolyse mettant en oeuvre cette membrane
EP0189056A1 (fr) * 1985-01-18 1986-07-30 Asahi Glass Company Ltd. Méthode pour rétablir le rendement du courant

Also Published As

Publication number Publication date
IT7824138A0 (it) 1978-06-02
GB1590357A (en) 1981-06-03
US4255523A (en) 1981-03-10
NL7811606A (nl) 1980-05-29
US4218542A (en) 1980-08-19
DE2822493A1 (de) 1978-12-14
JPS53149881A (en) 1978-12-27
FR2393015B1 (fr) 1983-02-25
IT1098304B (it) 1985-09-07

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