DE19909841A1 - Mehrschichtmembranen und Verfahren zu ihrer Herstellung - Google Patents
Mehrschichtmembranen und Verfahren zu ihrer HerstellungInfo
- Publication number
- DE19909841A1 DE19909841A1 DE19909841A DE19909841A DE19909841A1 DE 19909841 A1 DE19909841 A1 DE 19909841A1 DE 19909841 A DE19909841 A DE 19909841A DE 19909841 A DE19909841 A DE 19909841A DE 19909841 A1 DE19909841 A1 DE 19909841A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- groups
- carrier material
- single layer
- polyelectrolyte
- 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.)
- Withdrawn
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 31
- 239000010410 layer Substances 0.000 claims abstract description 129
- 229920000867 polyelectrolyte Polymers 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000002356 single layer Substances 0.000 claims abstract description 34
- 125000002091 cationic group Chemical group 0.000 claims abstract description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 229920001448 anionic polyelectrolyte Polymers 0.000 claims abstract description 7
- 239000012876 carrier material Substances 0.000 claims description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 150000003839 salts Chemical class 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 11
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 10
- 229920000642 polymer Polymers 0.000 claims description 9
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 7
- 125000000129 anionic group Chemical group 0.000 claims description 7
- 230000009918 complex formation Effects 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- 229920001282 polysaccharide Polymers 0.000 claims description 6
- 239000005017 polysaccharide Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 150000004676 glycans Chemical class 0.000 claims description 5
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 5
- 229920002873 Polyethylenimine Polymers 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- XYFCBTPGUUZFHI-UHFFFAOYSA-N phosphine group Chemical group P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 11
- 150000007942 carboxylates Chemical group 0.000 claims 4
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims 3
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 claims 3
- 125000003277 amino group Chemical group 0.000 claims 2
- 238000001035 drying Methods 0.000 claims 2
- 239000002198 insoluble material Substances 0.000 claims 2
- 239000004953 Aliphatic polyamide Substances 0.000 claims 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 1
- 229920003231 aliphatic polyamide Polymers 0.000 claims 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 239000012510 hollow fiber Substances 0.000 claims 1
- 125000005496 phosphonium group Chemical group 0.000 claims 1
- 229920000083 poly(allylamine) Polymers 0.000 claims 1
- 239000013589 supplement Substances 0.000 claims 1
- 238000005373 pervaporation Methods 0.000 abstract description 6
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 24
- 230000018044 dehydration Effects 0.000 description 8
- 238000006297 dehydration reaction Methods 0.000 description 8
- 239000003960 organic solvent Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000012466 permeate Substances 0.000 description 5
- 229920000447 polyanionic polymer Polymers 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229920000172 poly(styrenesulfonic acid) Polymers 0.000 description 3
- MNCGMVDMOKPCSQ-UHFFFAOYSA-M sodium;2-phenylethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 MNCGMVDMOKPCSQ-UHFFFAOYSA-M 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- CSNDXHSGSSAWOF-UHFFFAOYSA-L disodium;ethenyl phosphate Chemical compound [Na+].[Na+].[O-]P([O-])(=O)OC=C CSNDXHSGSSAWOF-UHFFFAOYSA-L 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 125000003010 ionic group Chemical group 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000012229 microporous material Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 229920000307 polymer substrate Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- BWYYYTVSBPRQCN-UHFFFAOYSA-M sodium;ethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=C BWYYYTVSBPRQCN-UHFFFAOYSA-M 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000005621 tetraalkylammonium salts Chemical group 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- ZTWTYVWXUKTLCP-UHFFFAOYSA-N vinylphosphonic acid Chemical compound OP(O)(=O)C=C ZTWTYVWXUKTLCP-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229920003176 water-insoluble polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
- B01D61/362—Pervaporation
- B01D61/3621—Pervaporation comprising multiple pervaporation steps
-
- 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
- B01D69/10—Supported membranes; Membrane supports
- B01D69/107—Organic support material
- B01D69/1071—Woven, non-woven or net mesh
-
- 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
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/1216—Three or more layers
-
- 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
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/80—Block polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19909841A DE19909841A1 (de) | 1999-03-06 | 1999-03-06 | Mehrschichtmembranen und Verfahren zu ihrer Herstellung |
| PCT/DE2000/000707 WO2000053296A2 (fr) | 1999-03-06 | 2000-02-25 | Membranes multicouches et leur procede de fabrication |
| AU42845/00A AU4284500A (en) | 1999-03-06 | 2000-02-25 | Multilayer membranes and method for the production thereof |
| EP00922423A EP1159060A2 (fr) | 1999-03-06 | 2000-02-25 | Membranes multicouches et leur procede de fabrication |
| DE10080521T DE10080521D2 (de) | 1999-03-06 | 2000-02-25 | Mehrschichtmembranen und Verfahren zu ihrer Herstellung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19909841A DE19909841A1 (de) | 1999-03-06 | 1999-03-06 | Mehrschichtmembranen und Verfahren zu ihrer Herstellung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19909841A1 true DE19909841A1 (de) | 2000-09-07 |
Family
ID=7899901
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19909841A Withdrawn DE19909841A1 (de) | 1999-03-06 | 1999-03-06 | Mehrschichtmembranen und Verfahren zu ihrer Herstellung |
| DE10080521T Expired - Fee Related DE10080521D2 (de) | 1999-03-06 | 2000-02-25 | Mehrschichtmembranen und Verfahren zu ihrer Herstellung |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10080521T Expired - Fee Related DE10080521D2 (de) | 1999-03-06 | 2000-02-25 | Mehrschichtmembranen und Verfahren zu ihrer Herstellung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1159060A2 (fr) |
| AU (1) | AU4284500A (fr) |
| DE (2) | DE19909841A1 (fr) |
| WO (1) | WO2000053296A2 (fr) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7101947B2 (en) | 2002-06-14 | 2006-09-05 | Florida State University Research Foundation, Inc. | Polyelectrolyte complex films for analytical and membrane separation of chiral compounds |
| WO2007106793A1 (fr) * | 2006-03-15 | 2007-09-20 | Honeywell International Inc. | membrane de biodetecteurs et procedes s'y rapportant |
| WO2008012222A2 (fr) * | 2006-07-28 | 2008-01-31 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Composés de polyarylène sulfonés, matériau pour membrane obtenu à partir de ces derniers, procédé de production et d'utilisation desdits composés |
| CN108043236A (zh) * | 2017-12-20 | 2018-05-18 | 哈尔滨工业大学 | 一种新型陶瓷-聚酰胺复合纳滤膜及其制备方法 |
| CN111992040A (zh) * | 2020-09-10 | 2020-11-27 | 德州学院 | 一种聚电解质纳滤膜制备方法 |
| CN115364691A (zh) * | 2022-08-12 | 2022-11-22 | 中国科学院上海高等研究院 | 一种基于静电层层自组装技术制备的纤维素纳米纤维空气过滤复合膜及其制备方法 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7799467B2 (en) | 2002-04-08 | 2010-09-21 | Massachusetts Institute Of Technology | Solid polymer electrolytes from ethylene oxide-containing, layer-by-layer assembled films |
| CN105056767B (zh) * | 2015-08-14 | 2017-07-11 | 浙江大学 | 一种荷正电聚电解质络合物均质渗透汽化膜的制备方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087367A (en) * | 1987-12-02 | 1992-02-11 | Japan Represented By Ministry Of International Trade And Industry, Director-General Basic Industries Bureau | Hydrolyzed membrane and process for the preparation of the same |
| DD292846A5 (de) * | 1989-10-11 | 1991-08-14 | Akad Wissenschaften Ddr | Verwendung von symplexmembranen fuer die pervaporation |
| JPH0691949B2 (ja) * | 1992-04-23 | 1994-11-16 | 通商産業省基礎産業局長 | ポリイオンコンプレックス製分離膜 |
| KR100224471B1 (ko) * | 1997-08-25 | 1999-10-15 | 김충섭 | 이중구조를 갖는 폴리이온콤플렉스 분리막 |
-
1999
- 1999-03-06 DE DE19909841A patent/DE19909841A1/de not_active Withdrawn
-
2000
- 2000-02-25 DE DE10080521T patent/DE10080521D2/de not_active Expired - Fee Related
- 2000-02-25 WO PCT/DE2000/000707 patent/WO2000053296A2/fr not_active Application Discontinuation
- 2000-02-25 AU AU42845/00A patent/AU4284500A/en not_active Abandoned
- 2000-02-25 EP EP00922423A patent/EP1159060A2/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| C.A., 124:291513c, 1996 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7101947B2 (en) | 2002-06-14 | 2006-09-05 | Florida State University Research Foundation, Inc. | Polyelectrolyte complex films for analytical and membrane separation of chiral compounds |
| US7365142B2 (en) | 2002-06-14 | 2008-04-29 | Florida State University Research Foundation, Inc. | Polyelectrolyte complex films for analytical and membrane separation of chiral compounds |
| WO2007106793A1 (fr) * | 2006-03-15 | 2007-09-20 | Honeywell International Inc. | membrane de biodetecteurs et procedes s'y rapportant |
| US8679308B2 (en) | 2006-03-15 | 2014-03-25 | Honeywell International Inc. | Biosensor membrane and methods related thereto |
| WO2008012222A2 (fr) * | 2006-07-28 | 2008-01-31 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Composés de polyarylène sulfonés, matériau pour membrane obtenu à partir de ces derniers, procédé de production et d'utilisation desdits composés |
| WO2008012222A3 (fr) * | 2006-07-28 | 2008-04-24 | Leibniz Inst Polymerforschung | Composés de polyarylène sulfonés, matériau pour membrane obtenu à partir de ces derniers, procédé de production et d'utilisation desdits composés |
| US8163864B2 (en) | 2006-07-28 | 2012-04-24 | Leibniz-Institut Fuer Polymerforschung Dresden E.V. | Sulfonated polyarylene compounds, membrane material made therefrom, method for the production thereof and use |
| CN108043236A (zh) * | 2017-12-20 | 2018-05-18 | 哈尔滨工业大学 | 一种新型陶瓷-聚酰胺复合纳滤膜及其制备方法 |
| CN111992040A (zh) * | 2020-09-10 | 2020-11-27 | 德州学院 | 一种聚电解质纳滤膜制备方法 |
| CN115364691A (zh) * | 2022-08-12 | 2022-11-22 | 中国科学院上海高等研究院 | 一种基于静电层层自组装技术制备的纤维素纳米纤维空气过滤复合膜及其制备方法 |
| CN115364691B (zh) * | 2022-08-12 | 2023-08-25 | 中国科学院上海高等研究院 | 一种基于静电层层自组装技术制备的纤维素纳米纤维空气过滤复合膜及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10080521D2 (de) | 2002-07-25 |
| EP1159060A2 (fr) | 2001-12-05 |
| WO2000053296A2 (fr) | 2000-09-14 |
| WO2000053296A3 (fr) | 2000-12-28 |
| AU4284500A (en) | 2000-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3129702C2 (fr) | ||
| DE2539408C3 (de) | Membrane, Verfahren zu ihrer Herstellung und ihre Verwendung zur umgekehrten Osmose und Ultrafiltration | |
| EP0096339B2 (fr) | Utilisation d'une membrane à plusieurs couches pour la séparation de mélanges liquides selon le procédé de pervaporation | |
| DE60220740T2 (de) | Zusammengesetzte Membranen | |
| EP3056260B1 (fr) | Procédé de fabrication d'une membrane de séparation et membrane de séparation fabriquée selon ledit procédé | |
| DE3886822T2 (de) | Verfahren zur Herstellung von hochdurchlässigen zusammengesetzten beschichteten Hohlfasermembranen. | |
| DE3801690A1 (de) | Polymermembran und verfahren zu ihrer herstellung | |
| EP0603463B1 (fr) | Modification hydrophile permanente pour polymères de fluor et procédé pour produire cette modification | |
| WO2008034487A1 (fr) | Membrane isoporeuse et son procédé de fabrication | |
| EP1614795A1 (fr) | Non-tisses functionalises, procedé de preparation et leur utilisation | |
| EP0077509B1 (fr) | Membranes semi-perméables | |
| DE69211414T2 (de) | Reaktive Behandlung zusammengesetzter Gastrennungsmembranen | |
| DE2808222C3 (de) | Verfahren zur Herstellung von Composite-Membranen | |
| DE19909841A1 (de) | Mehrschichtmembranen und Verfahren zu ihrer Herstellung | |
| DE2624139A1 (de) | Membranen | |
| DE3853366T2 (de) | Hydrolysierte Membran und Verfahren zu deren Herstellung. | |
| DE69804970T2 (de) | Ionenaustauschermembran | |
| WO2021018971A1 (fr) | Membrane d'ultrafiltration mécaniquement stable et son procédé de production | |
| EP1791623B1 (fr) | Procédé pour réaliser des membranes à fibres creuses | |
| EP0587071B1 (fr) | Procédé pour la préparation d'une membrane composite à base de polyélectrolyte | |
| DE10326354A1 (de) | Trennaktives Kompositmaterial für die Stofftrennung, Kompositmembran, Verwendung und Verfahren zu ihrer Herstellung | |
| DE3707054A1 (de) | Verfahren zum herstellen einer zweischichtmembran | |
| EP1083981B1 (fr) | Membrane composite constituee d'une membrane support microporeuse et d'une couche de separation en cellulose regeneree, et son procede de production | |
| DE2261895B2 (de) | Mikroporöse Polyestermembranen und Hilfspolymer-Phasenumwandlungsverfahren zu ihrer-Herstellung | |
| DE4437869B4 (de) | Tensidhaltige Membranen für die Pervaporation, Verfahren zu ihrer Herstellung und Verwendung einer tensidhaltigen Membran |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8143 | Lapsed due to claiming internal priority |