DE2829630C3 - Semipermeable Membran und Verfahren zu ihrer Herstellung - Google Patents
Semipermeable Membran und Verfahren zu ihrer HerstellungInfo
- Publication number
- DE2829630C3 DE2829630C3 DE2829630A DE2829630A DE2829630C3 DE 2829630 C3 DE2829630 C3 DE 2829630C3 DE 2829630 A DE2829630 A DE 2829630A DE 2829630 A DE2829630 A DE 2829630A DE 2829630 C3 DE2829630 C3 DE 2829630C3
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- water
- solution
- semipermeable
- casting solution
- 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.)
- Expired
Links
- 239000012528 membrane Substances 0.000 title claims description 86
- 238000000034 method Methods 0.000 title claims description 10
- 238000002360 preparation method Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 229920000110 poly(aryl ether sulfone) Polymers 0.000 claims description 41
- 238000005266 casting Methods 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 14
- 230000015271 coagulation Effects 0.000 claims description 8
- 238000005345 coagulation Methods 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 51
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 26
- 230000035699 permeability Effects 0.000 description 15
- 239000003792 electrolyte Substances 0.000 description 12
- 239000003495 polar organic solvent Substances 0.000 description 10
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 10
- 230000001112 coagulating effect Effects 0.000 description 9
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 8
- 239000012510 hollow fiber Substances 0.000 description 8
- 229920002307 Dextran Polymers 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000008151 electrolyte solution Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000004317 sodium nitrate Substances 0.000 description 5
- 235000010344 sodium nitrate Nutrition 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000005840 aryl radicals Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000001632 sodium acetate Substances 0.000 description 3
- 235000017281 sodium acetate Nutrition 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- -1 N-oleoyl-N-methyl-2-aminoethane sodium Chemical compound 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- CDOUZKKFHVEKRI-UHFFFAOYSA-N 3-bromo-n-[(prop-2-enoylamino)methyl]propanamide Chemical compound BrCCC(=O)NCNC(=O)C=C CDOUZKKFHVEKRI-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 125000004218 chloromethyl group Chemical group [H]C([H])(Cl)* 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 description 1
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 230000000322 hemodialysis Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 description 1
- 229940039790 sodium oxalate Drugs 0.000 description 1
- 229940074404 sodium succinate Drugs 0.000 description 1
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0011—Casting solutions therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/20—Polysulfones
- C08G75/23—Polyethersulfones
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8091377A JPS5416378A (en) | 1977-07-08 | 1977-07-08 | Polysulfone semipermeable membrane |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2829630A1 DE2829630A1 (de) | 1979-01-18 |
| DE2829630B2 DE2829630B2 (de) | 1980-04-17 |
| DE2829630C3 true DE2829630C3 (de) | 1988-03-24 |
Family
ID=13731619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2829630A Expired DE2829630C3 (de) | 1977-07-08 | 1978-07-06 | Semipermeable Membran und Verfahren zu ihrer Herstellung |
Country Status (5)
Families Citing this family (56)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2810462A1 (de) | 1978-03-10 | 1979-09-13 | Bayer Ag | Polyarylsulfone mit verbesserter bestaendigkeit gegen spannungsrisskorrosion |
| GB2047564B (en) * | 1978-03-27 | 1983-01-26 | Bend Res Inc | Separator membrane and process using such membrane for removing ions from an aqueous solution |
| JPS54143777A (en) * | 1978-05-01 | 1979-11-09 | Asahi Chem Ind Co Ltd | Aromatic polyether sulfone hollow yarn semipermeable membrane |
| JPS54145379A (en) * | 1978-05-02 | 1979-11-13 | Asahi Chem Ind Co Ltd | Aromatic polysulfone hollow fiber semipermeable membrane |
| FR2424940A1 (fr) * | 1978-05-03 | 1979-11-30 | Rhone Poulenc Ind | Compositions polymeriques pour membranes |
| JPS5531474A (en) * | 1978-08-29 | 1980-03-05 | Nitto Electric Ind Co Ltd | Selective permeable membrane |
| JPS5831204B2 (ja) * | 1980-03-10 | 1983-07-05 | 日東電工株式会社 | ポリスルホン半透膜 |
| CA1202837A (en) * | 1980-03-14 | 1986-04-08 | Wolfgang J. Wrasidlo | Asymmetric membranes and process therefor |
| EP0037181A1 (en) * | 1980-03-25 | 1981-10-07 | Imperial Chemical Industries Plc | Compatible polymer blend compositions in the form of films comprising polyalkylene oxide and aromatic polyethersulphone |
| DE3161345D1 (en) * | 1980-03-28 | 1983-12-15 | Pennwalt Corp | Method for preparing a membrane of a film-forming non-sulfonated sulfone polymer |
| DE3149976A1 (de) * | 1981-12-17 | 1983-06-30 | Hoechst Ag, 6230 Frankfurt | Makroporoese asymmetrische hydrophile membran aus synthetischem polymerisat |
| DE3271691D1 (en) * | 1981-12-21 | 1986-07-17 | Aligena Ag | Semipermeable membranes of modified polystyrene, process for their manufacture and their use |
| JPS58132111A (ja) * | 1982-01-29 | 1983-08-06 | Asahi Chem Ind Co Ltd | ポリスルホン中空糸 |
| US4427419A (en) | 1982-03-12 | 1984-01-24 | The Standard Oil Company | Semipermeable membranes prepared from polymers containing pendent sulfone groups |
| US4521224A (en) * | 1982-03-12 | 1985-06-04 | The Standard Oil Company | Semipermeable membranes prepared from polymers containing pendent sulfone groups |
| SE8204103L (sv) * | 1982-07-02 | 1984-01-03 | Gambro Lundia Ab | Filtrationsmembran samt sett att framstella membranet |
| US4413106A (en) * | 1982-12-27 | 1983-11-01 | Albany International Corp. | Heterogeneous sulfonation process for difficultly sulfonatable poly(ether sulfone) |
| US4414368A (en) * | 1982-12-27 | 1983-11-08 | Albany International Corp. | Chlorosulfonated polysulfones and derivatives thereof |
| JPS59189903A (ja) * | 1983-04-09 | 1984-10-27 | Kanegafuchi Chem Ind Co Ltd | 中空糸状フイルタ−およびその製法 |
| US4473684A (en) * | 1983-04-18 | 1984-09-25 | Union Carbide Corporation | Poly (aryl ether)s |
| US4533721A (en) * | 1983-08-23 | 1985-08-06 | Showa Denko Kabushiki Kaisha | Chlorine containing polyether sulfone polymers and preparation thereof |
| CA1248678A (en) * | 1983-09-29 | 1989-01-10 | Lloyd M. Robeson | Polyarylethersulfone polymer solution |
| US4550140A (en) * | 1984-03-20 | 1985-10-29 | Union Carbide Corporation | Circuit board substrates prepared from poly(aryl ethers)s |
| US4699634A (en) * | 1985-07-08 | 1987-10-13 | The Standard Oil Company | Process for the modification of aromatic polymers via phase transfer catalysis to produce polyarylene polymers and the use thereof |
| GB2189168B (en) | 1986-04-21 | 1989-11-29 | Aligena Ag | Composite membranes useful in the separation of low molecular weight organic compounds from aqueous solutions containing inorganic salts |
| US4717395A (en) * | 1986-08-07 | 1988-01-05 | The Dow Chemical Company | Gas separations using membranes comprising sulphonated polyether sulphone |
| EP0341473B1 (de) * | 1988-04-30 | 1999-10-06 | Akzo Nobel N.V. | Verfahren zur Sulfonierung von aromatischen Polyäthersulfonen |
| JPH01299610A (ja) * | 1988-05-28 | 1989-12-04 | Nikkiso Co Ltd | 半透膜およびその製造方法 |
| US5024765A (en) * | 1989-10-02 | 1991-06-18 | Aligena Ag | Composite membranes and processes using them |
| JPH0379668A (ja) * | 1990-04-20 | 1991-04-04 | Kuraray Co Ltd | 製膜溶液 |
| GB2250469B (en) | 1990-12-03 | 1995-03-22 | Aligena Ag | Charged asymmetric mosaic membranes |
| US5762798A (en) * | 1991-04-12 | 1998-06-09 | Minntech Corporation | Hollow fiber membranes and method of manufacture |
| US5265734A (en) * | 1991-08-30 | 1993-11-30 | Membrane Products Kiryat Weitzman Ltd. | Silicon-derived solvent stable membranes |
| US5151182A (en) * | 1991-08-30 | 1992-09-29 | Membrane Products Kiryat Weizmann Ltd. | Polyphenylene oxide-derived membranes for separation in organic solvents |
| US5205934A (en) * | 1991-08-30 | 1993-04-27 | Membrane Products Kiryat Weitzman Ltd. | Silicone-derived solvent stable membranes |
| US5788862A (en) * | 1992-05-13 | 1998-08-04 | Pall Corporation | Filtration medium |
| US5480554A (en) * | 1992-05-13 | 1996-01-02 | Pall Corporation | Integrity-testable wet-dry-reversible ultrafiltration membranes and method for testing same |
| USRE36914E (en) * | 1992-10-07 | 2000-10-17 | Minntech Corp | Dialysate filter including an asymmetric microporous, hollow fiber membrane incorporating a polyimide |
| US5910558A (en) * | 1993-01-08 | 1999-06-08 | Basf Aktiengesellschaft | Micropowders |
| CA2152279A1 (en) * | 1993-01-08 | 1994-07-21 | Michael Schoenherr | Micropowders |
| US5911880A (en) * | 1995-12-15 | 1999-06-15 | Research Corporation Technologies, Inc. | Self-wetting membranes from engineering plastics |
| US5980746A (en) * | 1996-11-14 | 1999-11-09 | Pall Corporation | Membrane and methods of preparing and using same |
| US8807350B2 (en) | 2005-07-14 | 2014-08-19 | Ben-Gurion University Of The Negev Research & Development Authority | Composite membranes and methods for their preparation |
| EP2033324B1 (en) | 2006-05-24 | 2016-04-13 | Ben Gurion University of the Negev Research and Development Authority | Membranes and methods for their preparation |
| GB0709228D0 (en) | 2007-05-14 | 2007-06-20 | Katholieke Universltelt Leuven | Cross-linked polyimide membranes |
| WO2010095139A1 (en) | 2009-02-19 | 2010-08-26 | Ben-Gurion University Of The Negev Research And Development Authority | Chemically resistant membranes, coatings and films and methods for their preparation |
| WO2010111755A2 (en) | 2009-04-01 | 2010-10-07 | Katholieke Universiteit Leuven - K.U.Leuven R & D | Improved method for making cross-linked polyimide membranes |
| DE202009016240U1 (de) | 2009-11-27 | 2010-04-29 | Weihmann, Andreas, Dipl.-Designer | Wassergewinnungssystemtechnologie |
| US9457318B2 (en) | 2010-12-12 | 2016-10-04 | Ben-Gurion University Of The Negev Research And Development Authority | Anion exchange membranes, methods of preparation and uses |
| DE102011079778A1 (de) | 2011-07-26 | 2013-01-31 | Universität Duisburg-Essen | Membran umfassend mindestens ein photochemisch vernetztes Polyimid |
| US20150352502A1 (en) * | 2012-12-19 | 2015-12-10 | Solvay Sa | Method for manufacturing sulfone polymer membrane |
| GB201403432D0 (en) | 2014-02-27 | 2014-04-16 | Univ Leuven Kath | Improved method for synthesis of composite membranes |
| GB201419605D0 (en) | 2014-11-04 | 2014-12-17 | Univ Leuven Kath | Improved method for synthesis of polyamide composite membranes |
| GB201509794D0 (en) | 2015-06-05 | 2015-07-22 | Univ Leuven Kath | Method for preparing an assymetric membrane |
| US11565217B2 (en) | 2016-03-15 | 2023-01-31 | Solvay Specialty Polymers Italy S.P.A. | Composition and method for manufacturing sulfone polymer membrane |
| WO2021219692A1 (en) | 2020-04-28 | 2021-11-04 | Katholieke Universiteit Leuven | Thin-film composite membranes synthesized by multi-step coating methods |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1238180A (US06262066-20010717-C00424.png) * | 1967-09-21 | 1971-07-07 | ||
| US3567810A (en) * | 1968-04-01 | 1971-03-02 | Amicon Corp | Process for making high-flow anisotropic membranes |
| US3615024A (en) * | 1968-08-26 | 1971-10-26 | Amicon Corp | High flow membrane |
| US3691068A (en) * | 1971-01-08 | 1972-09-12 | Amicon Corp | Dialysis membrane and its use |
| FR2138334B1 (US06262066-20010717-C00424.png) * | 1971-05-24 | 1974-03-08 | Rhone Poulenc Sa | |
| GB1369156A (en) * | 1972-01-25 | 1974-10-02 | Ici Ltd | Aromatic polymers |
| JPS5229712B2 (US06262066-20010717-C00424.png) * | 1972-05-17 | 1977-08-03 | ||
| DE2228537B2 (de) * | 1972-06-12 | 1974-07-25 | Amicon Corp., Lexington, Mass. (V.St.A.) | Verfahren zur Herstellung einer anisotropen, mikroporösen, polymeren Niederdruckmembran |
| FR2266532B1 (US06262066-20010717-C00424.png) * | 1974-04-03 | 1976-12-17 | Rhone Poulenc Ind | |
| JPS517057A (ja) * | 1974-06-19 | 1976-01-21 | Sumitomo Chemical Co | Seikeiyohorieeterusurufuonyoekinoseibutsu |
| JPS518179A (en) * | 1974-07-11 | 1976-01-22 | Daicel Ltd | Sentakutokaseikobunshimakuoyobisono seizoho |
| DE2536492A1 (de) * | 1975-08-16 | 1977-02-24 | Bayer Ag | Semipermeable membranen aus sulfonierten polybenz-1,3-oxazindionen- (2,4) |
| JPS5857205B2 (ja) * | 1976-02-02 | 1983-12-19 | 住友化学工業株式会社 | 半透膜の製造方法 |
| US4113699A (en) * | 1976-07-08 | 1978-09-12 | Imperial Chemical Industries Limited | Production of aromatic polymers |
| FR2410501A1 (fr) * | 1976-11-15 | 1979-06-29 | Monsanto Co | Membranes a composants multiples pour des separations de gaz |
-
1977
- 1977-07-08 JP JP8091377A patent/JPS5416378A/ja active Granted
-
1978
- 1978-06-28 GB GB7828158A patent/GB2000720B/en not_active Expired
- 1978-07-06 DE DE2829630A patent/DE2829630C3/de not_active Expired
- 1978-07-07 FR FR7820328A patent/FR2396575A1/fr active Granted
- 1978-07-07 US US05/922,772 patent/US4208508A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2829630A1 (de) | 1979-01-18 |
| JPS5634128B2 (US06262066-20010717-C00424.png) | 1981-08-08 |
| DE2829630B2 (de) | 1980-04-17 |
| JPS5416378A (en) | 1979-02-06 |
| US4208508A (en) | 1980-06-17 |
| GB2000720B (en) | 1982-02-03 |
| FR2396575A1 (fr) | 1979-02-02 |
| GB2000720A (en) | 1979-01-17 |
| FR2396575B1 (US06262066-20010717-C00424.png) | 1983-01-14 |
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