JPS57115425A - Manufacture of fluoroplastic ion exchange membrane - Google Patents
Manufacture of fluoroplastic ion exchange membraneInfo
- Publication number
- JPS57115425A JPS57115425A JP17871280A JP17871280A JPS57115425A JP S57115425 A JPS57115425 A JP S57115425A JP 17871280 A JP17871280 A JP 17871280A JP 17871280 A JP17871280 A JP 17871280A JP S57115425 A JPS57115425 A JP S57115425A
- Authority
- JP
- Japan
- Prior art keywords
- dispersion
- ion exchange
- exchange membrane
- acid
- aqueous medium
- 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
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
PURPOSE: To obtain titled ion exchange membrane of increased capacity of casting into film a concentrated non-aqueous dispersion prepared by substituting a hydrophilic organic solvent for the aqueous medium of a specific acid-type fluorinated polymer dispersion.
CONSTITUTION: (A) A fluorinated ethylenic unsaturated monomer such as tetrafluoroethylene and (B) a polymerizable monomer having acid-type functional group (e.g. a compound of the formula) are copolymerized in an aqueous medium, by the action of an initiator to effect an aqueous dispersion of an acid-type fluoropolymer containing 5W40mol% of the component (B). The aqueous medium of the dispersion is then substituted by a hydrophilic organic solvent without degrading the dispersed condition to obtain a non-aqueous dispersion of said polymer. The resulting dispersion is subjected to casting to form a film, thus obtaining the objective ion exchange membrane.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17871280A JPS57115425A (en) | 1980-12-19 | 1980-12-19 | Manufacture of fluoroplastic ion exchange membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17871280A JPS57115425A (en) | 1980-12-19 | 1980-12-19 | Manufacture of fluoroplastic ion exchange membrane |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57115425A true JPS57115425A (en) | 1982-07-17 |
JPS6256901B2 JPS6256901B2 (en) | 1987-11-27 |
Family
ID=16053238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17871280A Granted JPS57115425A (en) | 1980-12-19 | 1980-12-19 | Manufacture of fluoroplastic ion exchange membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57115425A (en) |
Cited By (3)
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 |
WO2002072694A1 (en) * | 2001-02-13 | 2002-09-19 | Asahi Kasei Kabushiki Kaisha | Ion-exchange fluororesin precursor composition |
WO2005058980A1 (en) * | 2003-12-17 | 2005-06-30 | Daikin Industries, Ltd. | Fluoropolymer, process for producing fluoropolymer, electrolyte film, object having immobilized active substance, and solid polymer electrolyte type fuel cell |
-
1980
- 1980-12-19 JP JP17871280A patent/JPS57115425A/en active Granted
Cited By (7)
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 | |
WO2002072694A1 (en) * | 2001-02-13 | 2002-09-19 | Asahi Kasei Kabushiki Kaisha | Ion-exchange fluororesin precursor composition |
US6911482B2 (en) | 2001-02-13 | 2005-06-28 | Asahi Kasei Kabushiki Kaisha | Ion exchange fluorocarbon resin precursor composition |
WO2005058980A1 (en) * | 2003-12-17 | 2005-06-30 | Daikin Industries, Ltd. | Fluoropolymer, process for producing fluoropolymer, electrolyte film, object having immobilized active substance, and solid polymer electrolyte type fuel cell |
JPWO2005058980A1 (en) * | 2003-12-17 | 2007-07-12 | ダイキン工業株式会社 | Fluoropolymer, fluoropolymer production method, electrolyte membrane, active substance fixed body, and solid polymer electrolyte fuel cell |
JP4569472B2 (en) * | 2003-12-17 | 2010-10-27 | ダイキン工業株式会社 | Fluoropolymer, fluoropolymer production method, electrolyte membrane, active substance fixed body, and solid polymer electrolyte fuel cell |
Also Published As
Publication number | Publication date |
---|---|
JPS6256901B2 (en) | 1987-11-27 |
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