IL48546A - Method for repairing damaged sections of copolymers of tetrafluoroethylene and a sulfonated perfluorovinylether - Google Patents
Method for repairing damaged sections of copolymers of tetrafluoroethylene and a sulfonated perfluorovinyletherInfo
- Publication number
- IL48546A IL48546A IL48546A IL4854672A IL48546A IL 48546 A IL48546 A IL 48546A IL 48546 A IL48546 A IL 48546A IL 4854672 A IL4854672 A IL 4854672A IL 48546 A IL48546 A IL 48546A
- Authority
- IL
- Israel
- Prior art keywords
- tetrafluoroethylene
- copolymer
- copolymers
- sulfonated
- diaphragm
- Prior art date
Links
- 229920001577 copolymer Polymers 0.000 title claims abstract 7
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 title claims abstract 4
- RRZIJNVZMJUGTK-UHFFFAOYSA-N 1,1,2-trifluoro-2-(1,2,2-trifluoroethenoxy)ethene Chemical class FC(F)=C(F)OC(F)=C(F)F RRZIJNVZMJUGTK-UHFFFAOYSA-N 0.000 title claims abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims 3
- 239000004215 Carbon black (E152) Substances 0.000 claims 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims 2
- 229930195733 hydrocarbon Natural products 0.000 claims 2
- 150000002430 hydrocarbons Chemical class 0.000 claims 2
- ORNGPPZBMMHKPM-UHFFFAOYSA-N 1,1,1,2,2-pentafluoro-2-(1,1,2,2,2-pentafluoroethoxy)ethane Chemical class FC(F)(F)C(F)(F)OC(F)(F)C(F)(F)F ORNGPPZBMMHKPM-UHFFFAOYSA-N 0.000 claims 1
- 239000013256 coordination polymer Substances 0.000 claims 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 238000005868 electrolysis reaction Methods 0.000 abstract 2
- 238000009791 electrochemical migration reaction Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
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
- C08J5/2218—Synthetic macromolecular compounds
- C08J5/2231—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
- C08J5/2237—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds containing fluorine
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
- C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
Electrolysis cell esp. for the electrolysis of NaCl soln., with a casing, an anode, a cathode and a diaphragm which is practically impermeable to liquids and gas and separates the anode and the cathode is characterised by the diaphragm consisting of a hydrolysed copolymer of tetrafluoroethylene and sulphonated perfluorovinyl ether of formula FSO2CF2CF2OCF(CF3)CF2OCF = CF2 with a mol. wt. of 900-1600, pref. 1100-1400. The diaphragm prevents undesirable molecular and ionic migration, but allows conduction of electrical current by movement of desirable ions.
[BE793078A1]
Claims (2)
1. A process for. repairing damaged sections of hydrolyzed copolymers of tetrafluoroethylene and a sulfonated perfluoro-vinylether haying the formula - PSO C:F C-? OOE(CP,)CF OCF=CI? ά ά d. ά d .1 said copolymer having an equivalent weight of from aboutllOO to 1400 xihieh comprises ^ (a formin a solution of a second, hydrolyzed copolymer of tetrafluoroethylene and a sulfonated perfluoroethyl ether of the above^ formula, said second copolymer having an equivalent weight of from about 900~to 1000 in a lower hydrocarbon alkanol, —-( ) ^wetting the area adjacent to-the damaged area of the damaged copolymer^ with said solution, —;—- (c) covering the wetted area with a patch of hydrolyzed copolymer of equivalent x
2. -, The-process as claimed in Claim 1 wherein the lower hydrocarbon alkanol is selected from the group consisting of methanol, ethanol and isopropanol. PC:m
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21217171A | 1971-12-27 | 1971-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL48546A true IL48546A (en) | 1976-11-30 |
Family
ID=22789846
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL41038A IL41038A (en) | 1971-12-27 | 1972-12-08 | Method and apparatus for electrolysis |
| IL48546A IL48546A (en) | 1971-12-27 | 1972-12-08 | Method for repairing damaged sections of copolymers of tetrafluoroethylene and a sulfonated perfluorovinylether |
| IL48546A IL48546A0 (en) | 1971-12-27 | 1975-11-26 | Method for repairing damaged sections of copolymers of tetrafluoroethylene and a sulfonated perfluorovinylether |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL41038A IL41038A (en) | 1971-12-27 | 1972-12-08 | Method and apparatus for electrolysis |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL48546A IL48546A0 (en) | 1971-12-27 | 1975-11-26 | Method for repairing damaged sections of copolymers of tetrafluoroethylene and a sulfonated perfluorovinylether |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS4878097A (en) |
| AR (1) | AR196895A1 (en) |
| BE (1) | BE793078A (en) |
| BR (1) | BR7209151D0 (en) |
| CS (3) | CS190447B2 (en) |
| DD (1) | DD101821A5 (en) |
| ES (2) | ES410045A1 (en) |
| IL (3) | IL41038A (en) |
| IT (1) | IT972820B (en) |
| MX (1) | MX3133E (en) |
| NO (1) | NO139610B (en) |
| RO (1) | RO66346A (en) |
| SE (3) | SE383477B (en) |
| SU (1) | SU659078A3 (en) |
| ZA (1) | ZA728589B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976549A (en) * | 1973-02-26 | 1976-08-24 | Hooker Chemicals & Plastics Corporation | Electrolysis method |
| JPS551351B2 (en) * | 1974-03-07 | 1980-01-12 | ||
| JPS5111098A (en) * | 1974-07-19 | 1976-01-28 | Asahi Glass Co Ltd | Suisankakariumuno seizohoho |
| JPS5154082A (en) * | 1974-11-08 | 1976-05-12 | Asahi Glass Co Ltd | YOION KOKANMAKU |
| JPS5291783A (en) * | 1976-01-29 | 1977-08-02 | Teikoku Piston Ring Co Ltd | Method of protecting diaphragm in electrodialusis or electrolysis |
| JPS5337198A (en) * | 1977-07-15 | 1978-04-06 | Asahi Chem Ind Co Ltd | Electrolytic method of sodium chloride |
| FR2948121B1 (en) * | 2009-07-15 | 2011-08-05 | Commissariat Energie Atomique | FLUORINE COPOLYMERS, MEMBRANES PREPARED THEREFROM, AND FUEL CELL DEVICE COMPRISING THESE MEMBRANES |
| KR102476542B1 (en) * | 2020-10-13 | 2022-12-13 | (주)테크윈 | A system for generating sodium hypochlorite |
-
1972
- 1972-12-05 ZA ZA728589A patent/ZA728589B/en unknown
- 1972-12-08 IL IL41038A patent/IL41038A/en unknown
- 1972-12-08 IL IL48546A patent/IL48546A/en unknown
- 1972-12-15 AR AR245688A patent/AR196895A1/en active
- 1972-12-15 MX MX100198U patent/MX3133E/en unknown
- 1972-12-20 BE BE793078D patent/BE793078A/en unknown
- 1972-12-22 SE SE7216914A patent/SE383477B/en unknown
- 1972-12-22 IT IT33474/72A patent/IT972820B/en active
- 1972-12-23 RO RO7273282A patent/RO66346A/en unknown
- 1972-12-26 JP JP48004563A patent/JPS4878097A/ja active Pending
- 1972-12-26 ES ES410045A patent/ES410045A1/en not_active Expired
- 1972-12-27 BR BR9151/72A patent/BR7209151D0/en unknown
- 1972-12-27 SU SU721866652A patent/SU659078A3/en active
- 1972-12-27 NO NO4781/72A patent/NO139610B/en unknown
- 1972-12-27 CS CS758249A patent/CS190447B2/en unknown
- 1972-12-27 CS CS751903A patent/CS190446B2/en unknown
- 1972-12-27 CS CS728958A patent/CS190401B2/en unknown
- 1972-12-27 DD DD167913A patent/DD101821A5/xx unknown
-
1975
- 1975-05-30 ES ES438085A patent/ES438085A1/en not_active Expired
- 1975-07-31 SE SE7508694A patent/SE412608B/en unknown
- 1975-07-31 SE SE7508695A patent/SE7508695L/en not_active Application Discontinuation
- 1975-11-26 IL IL48546A patent/IL48546A0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE7508695L (en) | 1975-07-31 |
| IL48546A0 (en) | 1976-01-30 |
| ES410045A1 (en) | 1976-06-01 |
| IL41038A0 (en) | 1973-02-28 |
| CS190447B2 (en) | 1979-05-31 |
| SU659078A3 (en) | 1979-04-25 |
| CS190401B2 (en) | 1979-05-31 |
| NO139610B (en) | 1979-01-02 |
| ZA728589B (en) | 1974-01-30 |
| IT972820B (en) | 1974-05-31 |
| IL41038A (en) | 1976-08-31 |
| JPS4878097A (en) | 1973-10-19 |
| AR196895A1 (en) | 1974-02-28 |
| DD101821A5 (en) | 1973-11-20 |
| RO66346A (en) | 1979-07-15 |
| SE7508694L (en) | 1975-07-31 |
| MX3133E (en) | 1980-04-28 |
| CS190446B2 (en) | 1979-05-31 |
| SE412608B (en) | 1980-03-10 |
| SE383477B (en) | 1976-03-15 |
| BE793078A (en) | 1973-06-20 |
| ES438085A1 (en) | 1977-02-01 |
| BR7209151D0 (en) | 1974-12-24 |
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