JPS55102629A - Fluorine-containing cation-exchange membrane - Google Patents

Fluorine-containing cation-exchange membrane

Info

Publication number
JPS55102629A
JPS55102629A JP908579A JP908579A JPS55102629A JP S55102629 A JPS55102629 A JP S55102629A JP 908579 A JP908579 A JP 908579A JP 908579 A JP908579 A JP 908579A JP S55102629 A JPS55102629 A JP S55102629A
Authority
JP
Japan
Prior art keywords
layer
cation exchange
pref
acid group
group
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
JP908579A
Other languages
Japanese (ja)
Other versions
JPS6223773B2 (en
Inventor
Toshikatsu Sada
Akihiko Nakahara
Masaki Shiromizu
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.)
Tokuyama Corp
Original Assignee
Tokuyama Corp
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 Tokuyama Corp filed Critical Tokuyama Corp
Priority to JP908579A priority Critical patent/JPS55102629A/en
Publication of JPS55102629A publication Critical patent/JPS55102629A/en
Publication of JPS6223773B2 publication Critical patent/JPS6223773B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To provide the title novel ion exchange membrane having high mechanical strength, suitable for the use in an oxidative atmosphere, and composed of three layers each having cation exchange groups of different chemical structures.
CONSTITUTION: The objective cation-exchange membrane composed of (A) a layer having a crosslinked structure bonded through covalent bond, and cation exchange groups (pref. sulfonic acid group), (B) a layer having no crosslinked structure bonded through covalent bonds, and having cation exchange groups (pref. carboxylic acid group, sulfonic acid group, etc.) and (C) a layer having cation exchange groups having lower acidity than the cation exchange group of the layer (B). The cation exchange group of the layer (C) is pref. carboxylic acid group (when that of the layer (B) is sulfonic acid group), or a group of the formula. The thickness of the layer (B) is pref. ≥200Å, and 1/3 of the total thickness. The cation exchange mambrane is pref. composed of a polymer based on a perfluorocarbon compound.
COPYRIGHT: (C)1980,JPO&Japio
JP908579A 1979-01-31 1979-01-31 Fluorine-containing cation-exchange membrane Granted JPS55102629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP908579A JPS55102629A (en) 1979-01-31 1979-01-31 Fluorine-containing cation-exchange membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP908579A JPS55102629A (en) 1979-01-31 1979-01-31 Fluorine-containing cation-exchange membrane

Publications (2)

Publication Number Publication Date
JPS55102629A true JPS55102629A (en) 1980-08-06
JPS6223773B2 JPS6223773B2 (en) 1987-05-25

Family

ID=11710772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP908579A Granted JPS55102629A (en) 1979-01-31 1979-01-31 Fluorine-containing cation-exchange membrane

Country Status (1)

Country Link
JP (1) JPS55102629A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61195131A (en) * 1985-02-22 1986-08-29 イー・アイ・デユポン・デ・ニモアス・アンド・カンパニー Multilayer cation exchange membrane
EP1375540A1 (en) * 2001-02-23 2004-01-02 Daikin Industries, Ltd. Ethylenic fluoromonomer containing hydroxyl or fluoroalkylcarbonyl group and fluoropolymer obtained by polymerizing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5326284A (en) * 1976-08-24 1978-03-10 Tokuyama Soda Co Ltd Production of cation exchanger
JPS5392394A (en) * 1976-12-24 1978-08-14 Asahi Chem Ind Co Ltd Membrance of multi-layer structure and production thereof
JPS53141187A (en) * 1977-05-16 1978-12-08 Tokuyama Soda Co Ltd Process for fabricating cation exchange film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5326284A (en) * 1976-08-24 1978-03-10 Tokuyama Soda Co Ltd Production of cation exchanger
JPS5392394A (en) * 1976-12-24 1978-08-14 Asahi Chem Ind Co Ltd Membrance of multi-layer structure and production thereof
JPS53141187A (en) * 1977-05-16 1978-12-08 Tokuyama Soda Co Ltd Process for fabricating cation exchange film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61195131A (en) * 1985-02-22 1986-08-29 イー・アイ・デユポン・デ・ニモアス・アンド・カンパニー Multilayer cation exchange membrane
JPH0586971B2 (en) * 1985-02-22 1993-12-15 Du Pont
EP1375540A1 (en) * 2001-02-23 2004-01-02 Daikin Industries, Ltd. Ethylenic fluoromonomer containing hydroxyl or fluoroalkylcarbonyl group and fluoropolymer obtained by polymerizing the same
EP1375540A4 (en) * 2001-02-23 2005-12-28 Daikin Ind Ltd Ethylenic fluoromonomer containing hydroxyl or fluoroalkylcarbonyl group and fluoropolymer obtained by polymerizing the same
US7214470B2 (en) 2001-02-23 2007-05-08 Daikin Industries, Ltd. Fluorine-containing ethylenic monomer having hydroxyl group or fluoroalkyl carbonyl group and fluorine-containing polymer prepared by polymerization of same

Also Published As

Publication number Publication date
JPS6223773B2 (en) 1987-05-25

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