IT1164036B - PROCEDURE FOR JOINING FLUORINATED POLYMER MEMBRANES, CATION EXCHANGERS - Google Patents
PROCEDURE FOR JOINING FLUORINATED POLYMER MEMBRANES, CATION EXCHANGERSInfo
- Publication number
- IT1164036B IT1164036B IT51189/79A IT5118979A IT1164036B IT 1164036 B IT1164036 B IT 1164036B IT 51189/79 A IT51189/79 A IT 51189/79A IT 5118979 A IT5118979 A IT 5118979A IT 1164036 B IT1164036 B IT 1164036B
- Authority
- IT
- Italy
- Prior art keywords
- fluorinated polymer
- joining
- procedure
- polymer membranes
- cation exchangers
- Prior art date
Links
- 229920002313 fluoropolymer Polymers 0.000 title abstract 4
- 239000012528 membrane Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 150000001768 cations Chemical class 0.000 title 1
- 238000005341 cation exchange Methods 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 125000000565 sulfonamide group Chemical group 0.000 abstract 1
- 125000000542 sulfonic acid group Chemical group 0.000 abstract 1
- 150000003512 tertiary amines Chemical class 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
- 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
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
A method for joining fluorinated polymer cation exchange membranes is provided, wherein fluorinated polymer cation exchange membranes containing pendent groups of sulfonic acid groups or sulfon amide groups are treated with a tertiary amine, a quarternary ammonium base, or a salt thereof, then a porous hydrophilic fluorinated polymer film is interposed between them, thereafter being heat-pressed. The invention provides more improved joining than conventional methods.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16289678A JPS5586535A (en) | 1978-12-26 | 1978-12-26 | Method of bonding |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7951189A0 IT7951189A0 (en) | 1979-12-24 |
IT1164036B true IT1164036B (en) | 1987-04-08 |
Family
ID=15763293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT51189/79A IT1164036B (en) | 1978-12-26 | 1979-12-24 | PROCEDURE FOR JOINING FLUORINATED POLYMER MEMBRANES, CATION EXCHANGERS |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5586535A (en) |
DE (1) | DE2951475A1 (en) |
FR (1) | FR2455615A1 (en) |
GB (1) | GB2040803A (en) |
IT (1) | IT1164036B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6053059B2 (en) * | 1978-07-11 | 1985-11-22 | 旭化成株式会社 | Improved cation exchange membrane manufacturing method |
EP0249316B1 (en) * | 1986-06-10 | 1991-05-08 | Tosoh Corporation | Method for recovering a metal |
GB0009506D0 (en) * | 2000-04-17 | 2000-06-07 | Innogy Ltd | Ion exchange membrane |
-
1978
- 1978-12-26 JP JP16289678A patent/JPS5586535A/en active Pending
-
1979
- 1979-12-19 GB GB7943687A patent/GB2040803A/en not_active Withdrawn
- 1979-12-20 DE DE19792951475 patent/DE2951475A1/en not_active Withdrawn
- 1979-12-24 FR FR7931572A patent/FR2455615A1/en active Pending
- 1979-12-24 IT IT51189/79A patent/IT1164036B/en active
Also Published As
Publication number | Publication date |
---|---|
JPS5586535A (en) | 1980-06-30 |
FR2455615A1 (en) | 1980-11-28 |
GB2040803A (en) | 1980-09-03 |
DE2951475A1 (en) | 1980-07-10 |
IT7951189A0 (en) | 1979-12-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT8020489A0 (en) | PROCEDURE FOR THE FORMATION OF ELECTRODES ON THE SURFACES OF SEMIPERMEABLE MEMBRANES AND ELECTRODE-MEMBRANE SYSTEMS SO PRODUCED. | |
ATE8344T1 (en) | PROCESS FOR MAKING MICROCAPSULES IN A LIQUID CARRIER. | |
ATE44554T1 (en) | BIPOLAR ELEMENT, PROCESS FOR PRODUCTION THEREOF AND DIAPHRAGM ELECTROLYSER AND METHOD FOR ELECTROLYSIS OF ALKALINE METAL HALOGENS USING SUCH BIPOLAR ELEMENT. | |
IT8122477A0 (en) | METHOD FOR ERROR CORRECTION. | |
IT8348057A0 (en) | PROCEDURE FOR THE PRODUCTION OF ION EXCHANGE MEMBRANES WITH ELECTROLYSIS COATING | |
SE8201557L (en) | REVERSIBLE MICROCAPPING | |
DK189286A (en) | PROCEDURE FOR IMMOBILIZATION OF DISSOLVED PROTEINS | |
IT7830968A0 (en) | PROCESS FOR THE ELECTROLYSIS OF SODIUM DICHLOride WITH THE USE OF CATIONIC EXCHANGE MEMBRANES. | |
IT8026423A0 (en) | PROCESS FOR THE PREPARATION OF POLYMERS CONTAINING AMINO-STARCHES. | |
ATE35255T1 (en) | OPTICALLY ACTIVE (METH)-ACRYLAMIDES, POLYMERS THEREOF, PROCESSES FOR THEIR PRODUCTION AND THEIR USE FOR RACEMATE RESOLUTION. | |
FI802518A (en) | Polycarbonate-POLYETERBLOCKKOPOLYMERER | |
SE8008672L (en) | SET TO MAKE A HYDROPHOBIC POLYMER ELECTROLYCLE CELL Separator | |
ATE146097T1 (en) | METHOD FOR PREPARING AN AQUEOUS SOLUTION OF SODIUM HYDROXIDE | |
IT1144082B (en) | PROCEDURE FOR JOINING CATION EXCHANGING MEMBRANES CONSTITUTED BY FLUORINATED POLYMER | |
IT1164036B (en) | PROCEDURE FOR JOINING FLUORINATED POLYMER MEMBRANES, CATION EXCHANGERS | |
ES516166A0 (en) | A PROCEDURE AND ITS CORRESPONDING APPARATUS OF PLASMAPHERESIS BY FILTRATION. | |
ATE135366T1 (en) | METHOD FOR PURIFYING INTERLEUKIN-4 | |
IT1164034B (en) | PROCEDURE FOR COMBINING A FLUORINATED POLYMER FILM WITH A FLUORINATED POLYMER MEMBRANE OF CATION EXCHANGER | |
FI823797A0 (en) | KATJONBYTARMEMBRANER FOER ELEKTROLYSCELL OCH FOERFARANDEN FOER FRAMSTAELLNING OCH REPARERING AV DESAMMA | |
DK86485A (en) | METHOD FOR PREPARING N- (4- (3-AMINOPROPYL) -AMINOBUTYL) -2,2-DIHYDROXYETHANAMIDE OR ACID ADDITION SALTS THEREOF | |
DK155081A (en) | METHOD FOR PREPARING 3,7,11,15-TETRAMETHYL-2,4,6,10,14-HEXADECAPENTA ACID OR SALTS THEREOF | |
IT1128596B (en) | SYNTHESIS PROCEDURE OF WATER SOLUBLE CROSS-LINKING AGENTS FOR THE PREPARATION OF ANIONIC POLYMERS AND OBTAINED PRODUCT | |
IT1144083B (en) | PROCEDURE FOR JOINING CATION EXCHANGING MEMBRANES CONSTITUTED BY FLUORATED POLYMER | |
DK162095C (en) | PROCEDURE FOR THE PREPARATION OF THIOTETRONIC ACID | |
ATE26471T1 (en) | POROUS DIAPHRAGM FOR AN ELECTROLYTIC CELL. |