FI68849B - Foerfarande foer framstaellning av vaetskefila i alkohol oloesliga polyamidmembraner polyamidhartsmembranfilmer och deras anvaendning som filterelement - Google Patents
Foerfarande foer framstaellning av vaetskefila i alkohol oloesliga polyamidmembraner polyamidhartsmembranfilmer och deras anvaendning som filterelement Download PDFInfo
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- FI68849B FI68849B FI813263A FI813263A FI68849B FI 68849 B FI68849 B FI 68849B FI 813263 A FI813263 A FI 813263A FI 813263 A FI813263 A FI 813263A FI 68849 B FI68849 B FI 68849B
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- film
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- solution
- solvent
- polyamide resin
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- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
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- 230000000284 resting effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000007614 solvation Methods 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 239000008174 sterile solution Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
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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
- B01D71/56—Polyamides, e.g. polyester-amides
-
- 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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/10—Testing of membranes or membrane apparatus; Detecting or repairing leaks
- B01D65/102—Detection of leaks in membranes
-
- 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
-
- 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
- B01D69/1214—Chemically bonded layers, e.g. cross-linking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/44—Cartridge types
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/12—Specific ratios of components used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/36—Hydrophilic membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/38—Hydrophobic membranes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyamides (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Laminated Bodies (AREA)
- External Artificial Organs (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Claims (17)
1. Förfarande för framställning av vätskefila, i al-kohol olösliga polyamidmembraner, kännetecknat 5 därav, att förfarandet omfattar följande skeden: vid en första lösningstemperatur framställs en lösning av ett i alkohol olösligt polyamidharts väri förhällandet mellan metylengrupper och amidgrupper CI^iNHCO är cirka 7:1-12:1, i ett polyamidlösningsmedel, vars temperaturlöslighets-10 koefficient är i omrädet cirka 0,01-5 vikt-%/°C;utfällning induceras i lösningen genom tillsats av en kontrollerad mängd av ett icke-lösningsmedel för polyamidhartset under reglerade koncentrations-, temperatur-, tillsättningshastig-hets- och omröringshastighetsbetingelser för erhällande 15 av en synlig fällning av polyamidhartspartiklar, varigenom en gjuthartslösning bildas· gjutlösningen utbreds pä ett substrat varvid en tunn film av denna bildas pä substratet; gjutlösningsfilmen avkyls tili en andra gelbildningstem-peratur, vilken är tillräckligt mycket lägre än den första 20 temperaturen för att utfälla polyamidhartset frän gjutlösningen; filmen av gjutlösningen bringas i kontakt med och utspäds med en icke-lösande vätska för utfällning av polyamidhartset frän gjutlösningen i form av en tunn, vätske-fil membran utan hinna; och den resulterande membranen 25 tvättas och torkas.
2. Förfarande enligt patentkravet 1, kännetecknat därav, att de utfällda polyamidhartspartik-larna löses änyo eller filtreras bort helt eller delvis innan gjutlösningen utbreds pä substratet. 30
3. Förfarande enligt patentkravet 1 eller 2, k ä n - netecknat därav, att icke-lösningsmedlet som bringas i kontakt med gjutlösningen och späder ut gjutlösningen är en blandning av lösningsmedel och icke-lösande vätskor och innehäller en väsentlig andel av lösnings-35 medelsvätskan, men dock mindre än gjutlösningens andel. 69 6 8 8 4 9
4. Förfarande enligt nägot av patentkraven 1-3, kännetecknat därav, att polyamidhartset är en eller flera polyhexametylendodekandiamider eller en poly-11-aminoundekanamid.
5 5. Förfarande enligt nägot av patentkraven 1-4, kännetecknat därav, att lösningsmedlet för po-lyamidhartslösningen är mvrsyra och att icke-lösningsmedlet som tillsätts för utspädning är vatten.
6. Förfarande enligt nägot av patentkraven 1-5, 10 kännetecknat därav, att den första lösningstem-peraturen är cirka 50-200°C och den andra gelbildningstem-peraturen är cirka 10-35°C.
7. Förfarande enligt nägot av patentkraven 1-6, kännetecknat därav, att substratet är en icke- 15 porös, syntetisk polymerfilm, vars yta väts av gjutharts-lösningen och badlösningen.
8. Förfarande enligt nägot av patentkraven 1-6, kännetecknat därav, att substratet är en porös väv med öppen struktur, som väts och impregneras med gjut- 20 lösning och därigenom bildas en membranfilm, i vilken den porösa väven ingär som en del av membranfilmen.
9. Förfarande enligt nägot av patentkraven 1-8, kännetecknat därav, att koncentrationen av det i alkohol olösliga polyamidhartset i lösningen är cirka 25 10-20 % och lösningsmedlet för polyamidhartslösningen är en vattenhaltig myrsyralösning, som innehäller cirka 70-85 vikt-% myrsyra; och polyamidhartslösningsfilmen tilläts kalina i luft under ätminstone 10 sekunder, varefter den bringas i kontakt med icke-lösningsmedlet genom neddoppan- 30 de av filmen pä substratet i ett bad av icke-lösningsmedel, som innehäller vatten och tili största del myrsyra.
10. Vätskefil, i alkohol olöslig polyamidhartsmemb-ranfilm utan hinna, framställd av i alkohol olösligt hydro-fobiskt polyamidharts, väri förhällandet mellan metylen- 35 grupper och amidgrupper Ct^NHCO är cirka 7:1-12:1, kännetecknad därav, att filmen väts dä inom 70 6 3 84 9 högst en sekund da den helt neddoppas i en organisk vätska, _5 med ytspänningen cirka 40-60 x 10 N/cm, och att den, da den uppvärms tili en temperatur just under membranens mjuk-ningstemperatur, omvandlas tili ett vätskefobt material, 5 vilker ej mera väts av dylika organiska vätskor.
11. Vätskefil, i alkohol olösligt polyamidhartsmemb-ranfilm utan hinna enligt patentkravet 10, känne- t e c k n a d därav, att dess porer sträcker sig frän yta tili yta och är huvudsakligen enhetliga till form och stor-10 lek.
12. Vätskefil, i alkohol olöslig polyamidhartsmembran-film utan hinna enligt patentkravet 10, känneteck- n a d därav, att dess porer sträcker sig frän yta tili yta och är konformiga, bredare vid den ena ytan och avsmalnan-15 de mot den andra ytan av membranfilmen.
13. Vätskefil, i alkohol olöslig polyamidhartsmembran-film utan hinna enligt nägot av patentkraven 10-12, k ä n-netecknad därav, att den har ett absolut partikel-avlägsningsomräde frän 0,10-5 /uM. 20
14. Vätskefil, i alkohol olöslig polyamidhartsmembran- film utan hinna enligt nägot av patentkraven 10-13, k ä n-netecknad därav, att polyamidhartset är en eller flera polyhexametylendodekandiamider och poly-11-amino-undekanamid. 25
15. Vätskefil, i alkohol olöslig polyamidhartsmemb- ranfilm utan hinna enligt nägot av patentkraven 10-14, kännetecknad därav, att den har tvä membran-skikt som är förenade med varandra och bildar en enkel membranfilm, vars partikelavlägsningsegenskaper är bättre 30 än de individuella membranfilmernas partikelavlägsningsegenskaper.
16. Filtrerelement, kännetecknat därav, att det omfattar en vätskefil, i alkohol olöslig polyamid-hartsmembranfilm utan hinna enligt nägot av patentkraven 35 10-15, och som formats i en rörformad konfiguration sä, att ändarna av röret förseglats med ändhattar, av vilka
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/198,570 US4340480A (en) | 1978-05-15 | 1980-10-20 | Process for preparing liquophilic polyamide membrane filter media and product |
| US19857080 | 1980-10-20 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI813263L FI813263L (fi) | 1982-04-21 |
| FI68849B true FI68849B (fi) | 1985-07-31 |
| FI68849C FI68849C (fi) | 1985-11-11 |
Family
ID=22733932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI813263A FI68849C (fi) | 1980-10-20 | 1981-10-19 | Foerfarande foer framstaellning av vaetskefila i alkohol oloesliga polyamidmembraner polyamidhartsmembranfilmer och deras anvaendning som filterelement |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US4340480A (sv) |
| EP (1) | EP0050789B1 (sv) |
| JP (1) | JPS5925603B2 (sv) |
| AT (1) | ATE17926T1 (sv) |
| AU (1) | AU534042B2 (sv) |
| BR (1) | BR8106719A (sv) |
| CA (1) | CA1161215A (sv) |
| DE (1) | DE3173774D1 (sv) |
| DK (1) | DK162196C (sv) |
| ES (1) | ES506336A0 (sv) |
| FI (1) | FI68849C (sv) |
| IL (1) | IL63929A (sv) |
| MX (1) | MX160821A (sv) |
| NO (1) | NO160903C (sv) |
| NZ (1) | NZ198693A (sv) |
| PT (1) | PT73838B (sv) |
| ZA (1) | ZA817211B (sv) |
Families Citing this family (108)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4743418A (en) * | 1981-05-29 | 1988-05-10 | Cuno Incorporated | Process for charge modifying a microporous membrane |
| US4737291A (en) * | 1981-05-29 | 1988-04-12 | Cuno Incorporated | Charge modified microporous membrane |
| US4707265A (en) * | 1981-12-18 | 1987-11-17 | Cuno Incorporated | Reinforced microporous membrane |
| US4707266A (en) * | 1982-02-05 | 1987-11-17 | Pall Corporation | Polyamide membrane with controlled surface properties |
| EP0090483B2 (en) * | 1982-02-05 | 1991-08-21 | Pall Corporation | Polyamide membrane and process for its production |
| US4450126A (en) * | 1982-04-21 | 1984-05-22 | Puropore, Inc. | High strength nylon blend membranes |
| US4477598A (en) * | 1982-04-21 | 1984-10-16 | Puropore, Inc. | High strength nylon blend membranes |
| US4588555A (en) * | 1982-10-04 | 1986-05-13 | Fmc Corporation | Device for use in chemical reactions and analyses |
| EP0135514B1 (en) * | 1983-02-02 | 1990-11-07 | Memtec Limited | Cross linked porous membranes |
| US4486202A (en) * | 1983-06-30 | 1984-12-04 | Monsanto Company | Asymmetric gas separation membranes |
| JPS6227006A (ja) * | 1985-07-27 | 1987-02-05 | Fuji Photo Film Co Ltd | 微孔性膜 |
| GB8615268D0 (en) * | 1986-06-23 | 1986-07-30 | Domnick Hunter Filters Ltd | Polyamide membranes |
| US4812238A (en) * | 1987-01-15 | 1989-03-14 | The Dow Chemical Company | Membranes prepared via reaction of diazonium compounds or precursors |
| US4888116A (en) * | 1987-01-15 | 1989-12-19 | The Dow Chemical Company | Method of improving membrane properties via reaction of diazonium compounds or precursors |
| GB2205644B (en) * | 1987-06-12 | 1991-01-02 | Pall Corp | Diagnostic test device |
| US4921611A (en) * | 1987-10-14 | 1990-05-01 | Schucker Robert C | Thin film composite membrane prepared by deposition from a solution |
| US4837054A (en) * | 1987-10-14 | 1989-06-06 | Exxon Research And Engineering Company | Thin film composite membrane prepared by deposition from a solution |
| US4861628A (en) * | 1987-10-14 | 1989-08-29 | Exxon Research And Engineering Company | Thin film composite membrane prepared by suspension deposition |
| US4867934A (en) * | 1987-12-23 | 1989-09-19 | Cuno, Inc. | Production of hollow nylon fibers |
| AU645744B2 (en) * | 1988-12-16 | 1994-01-27 | Micron Separations, Inc. | Heat resistant microporous material production and products |
| US5215662A (en) * | 1988-12-16 | 1993-06-01 | Micron Separations Inc. | Heat resistant microporous material production and products |
| US5006247A (en) * | 1989-08-15 | 1991-04-09 | Minnesota Mining And Manufacturing Company | Asymmetric porous polyamide membranes |
| US5045354A (en) * | 1989-12-19 | 1991-09-03 | Exxon Research & Engineering Company | Production of supported thin film membranes |
| US5062927A (en) * | 1990-01-05 | 1991-11-05 | T And G Technologies, Inc. | Method of operating a still |
| US5053133A (en) * | 1990-02-09 | 1991-10-01 | Elias Klein | Affinity separation with activated polyamide microporous membranes |
| US5084179A (en) * | 1990-06-28 | 1992-01-28 | Cuno, Incorporated | Narrow pore-size distribution polytetramethylene adipamide or nylon 46 membranes and process for making them |
| US5143616A (en) * | 1991-05-15 | 1992-09-01 | Pall Corporation | Composite structure and method of making |
| CA2126672A1 (en) * | 1991-12-24 | 1993-07-08 | John D. Miller | Dynamic filter system |
| US5679249A (en) * | 1991-12-24 | 1997-10-21 | Pall Corporation | Dynamic filter system |
| AU2245392A (en) * | 1992-03-20 | 1993-10-21 | Micron Separations, Inc. | Alcohol-insoluble nylon microporous membranes |
| US5264165A (en) * | 1992-05-06 | 1993-11-23 | Cuno, Incorporated | Process of making polytetramethylene adipamide or nylon 46 membranes |
| US6117322A (en) * | 1993-06-23 | 2000-09-12 | Pall Corporation | Dynamic filter system |
| US5433859A (en) * | 1993-07-12 | 1995-07-18 | Pall Corporation | Supported microporous filtration membrane and method of using same |
| CA2128296A1 (en) * | 1993-12-22 | 1995-06-23 | Peter John Degen | Polyvinylidene fluoride membrane |
| JPH07238181A (ja) * | 1994-01-21 | 1995-09-12 | Minnesota Mining & Mfg Co <3M> | 親水化多孔性物品 |
| DE4421871C2 (de) | 1994-06-23 | 1997-06-19 | Seitz Filter Werke | Mehrschichtige Mikrofiltrationsmembran mit integrierter Vorfilterschicht und Verfahren zu ihrer Herstellung |
| US5693231A (en) * | 1995-05-08 | 1997-12-02 | Micron Separations, Inc. | Aromatic/aliphatic nylon polymer microporous membranes |
| WO1997018166A2 (en) * | 1995-11-14 | 1997-05-22 | Osmotek, Inc. | Direct osmotic concentration contaminated water |
| US6413070B1 (en) | 1997-04-11 | 2002-07-02 | Cuno Incorporated | System for manufacturing reinforced three-zone microporous membrane |
| US6264044B1 (en) | 1997-04-11 | 2001-07-24 | Cuno, Inc. | Reinforced, three zone microporous membrane |
| US6090441A (en) * | 1998-03-18 | 2000-07-18 | Cuno, Inc. | Process of making reinforced, three zone microporous membrane |
| US6056529A (en) * | 1998-02-11 | 2000-05-02 | Cuno, Inc. | Systems for producing a plurality of different microporous phase inversion membrane each having any one of a plurality of different pore sizes from a single master dope batch |
| US6280791B1 (en) | 1997-04-11 | 2001-08-28 | Cuno, Inc. | Process of making a three-region reinforced microporous filtration membrane |
| JP4472028B2 (ja) * | 1997-07-02 | 2010-06-02 | 日東電工株式会社 | 複合逆浸透膜およびその製造方法 |
| EP1911488A3 (en) | 1997-12-11 | 2008-12-03 | Alza Corporation | Device for enhancing transdermal agent flux |
| US6015495A (en) * | 1998-02-18 | 2000-01-18 | Saehan Industries Incorporation | Composite polyamide reverse osmosis membrane and method of producing the same |
| US6368507B1 (en) | 1998-10-14 | 2002-04-09 | Saekan Industries Incorporation | Composite polyamide reverse osmosis membrane and method of producing the same |
| US6274041B1 (en) | 1998-12-18 | 2001-08-14 | Kimberly-Clark Worldwide, Inc. | Integrated filter combining physical adsorption and electrokinetic adsorption |
| US6537614B1 (en) | 1998-12-18 | 2003-03-25 | Kimberly-Clark Worldwide, Inc. | Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist |
| US6245234B1 (en) | 1999-06-03 | 2001-06-12 | Saehan Industries Incorporation | Composite polyamide reverse osmosis membrane and method of producing the same |
| AU6115000A (en) | 1999-07-21 | 2001-02-13 | Procter & Gamble Company, The | Microorganism filter and method for removing microorganism from water |
| EP1239916B1 (en) | 1999-12-10 | 2005-11-23 | ALZA Corporation | Device and method for enhancing microprotrusion skin piercing |
| US6645388B2 (en) | 1999-12-22 | 2003-11-11 | Kimberly-Clark Corporation | Leukocyte depletion filter media, filter produced therefrom, method of making same and method of using same |
| US7942274B2 (en) * | 2000-05-24 | 2011-05-17 | Millipore Corporation | High-throughput asymmetric membrane |
| US7229665B2 (en) * | 2001-05-22 | 2007-06-12 | Millipore Corporation | Process of forming multilayered structures |
| EP1289636B1 (de) * | 2000-06-03 | 2005-06-15 | Membrana GmbH | Polyamidmembran mit erhöhter hydrolysestabilität und verfahren zu ihrer herstellung |
| US20020179521A1 (en) * | 2000-06-05 | 2002-12-05 | Paul C. Thomas | Expansion resistant filter cartridge |
| US6994789B2 (en) * | 2000-08-07 | 2006-02-07 | Cuno Incorporated | Pre-metered, unsupported multilayer microporous membrane |
| AU8315701A (en) * | 2000-08-07 | 2002-02-18 | Cuno Inc | Unsupported multizone microporous membrane |
| US6736971B2 (en) * | 2000-08-07 | 2004-05-18 | Cuno Incorporated | Pre-metered, unsupported multilayer microporous membrane |
| AU2002240237A1 (en) * | 2001-02-06 | 2002-08-19 | Pall Corporation | Filtration assembly |
| US7244485B2 (en) * | 2001-04-11 | 2007-07-17 | Xerox Corporation | Imageable seamed belts having polyamide adhesive between interlocking seaming members |
| US20050279696A1 (en) | 2001-08-23 | 2005-12-22 | Bahm Jeannine R | Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles |
| KR100777951B1 (ko) | 2001-08-23 | 2007-11-28 | 더 프록터 앤드 갬블 캄파니 | 정수 필터 재료, 대응하는 정수 필터 및 그의 사용 방법 |
| US7615152B2 (en) | 2001-08-23 | 2009-11-10 | Pur Water Purification Products, Inc. | Water filter device |
| US7614507B2 (en) | 2001-08-23 | 2009-11-10 | Pur Water Purification Products Inc. | Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same |
| US7614508B2 (en) | 2001-08-23 | 2009-11-10 | Pur Water Purification Products Inc. | Water filter materials, water filters and kits containing silver coated particles and processes for using the same |
| US20040063169A1 (en) * | 2002-02-05 | 2004-04-01 | Jeffrey Kane | Filtration assembly |
| US20060289003A1 (en) * | 2004-08-20 | 2006-12-28 | Lackner Klaus S | Laminar scrubber apparatus for capturing carbon dioxide from air and methods of use |
| US20060051274A1 (en) * | 2004-08-23 | 2006-03-09 | Wright Allen B | Removal of carbon dioxide from air |
| EP1841757B1 (en) * | 2005-01-07 | 2010-06-30 | Pfizer Products Incorporated | Heteroaromatic quinoline compounds and their use as pde10 inhibitors |
| US7655069B2 (en) * | 2005-02-02 | 2010-02-02 | Global Research Technologies, Llc | Removal of carbon dioxide from air |
| ES2742686T3 (es) * | 2005-03-04 | 2020-02-17 | Pall Corp | Método para preparar paquetes corrugados de tratamiento de fluidos |
| KR20080082597A (ko) * | 2005-07-28 | 2008-09-11 | 글로벌 리서치 테크놀로지스, 엘엘씨 | 공기로부터 이산화탄소의 제거 |
| US9266051B2 (en) | 2005-07-28 | 2016-02-23 | Carbon Sink, Inc. | Removal of carbon dioxide from air |
| MX2008011464A (es) | 2006-03-08 | 2008-09-24 | Global Res Technologies Llc | Colector de aire con membrana funcionalizada de intercambio ionico para capturar dioxido de carbono (co2) ambiental. |
| US7923054B2 (en) | 2006-04-19 | 2011-04-12 | Gore Enterprise Holdings, Inc. | Functional porous substrates for attaching biomolecules |
| JP5204384B2 (ja) | 2006-05-19 | 2013-06-05 | 富士フイルム株式会社 | 結晶性ポリマー微孔性膜とその製造方法、および濾過用フィルター |
| CN101998876B (zh) | 2006-10-02 | 2015-03-25 | 环球研究技术有限公司 | 从空气中提取co2的方法和装置 |
| AU2008242845B2 (en) | 2007-04-17 | 2012-08-23 | Carbon Sink, Inc. | Capture of carbon dioxide (CO2) from air |
| JP5220369B2 (ja) | 2007-09-04 | 2013-06-26 | 富士フイルム株式会社 | 結晶性ポリマー微孔性膜及びその製造方法、並びに濾過用フィルタ |
| CN101848754A (zh) * | 2007-11-05 | 2010-09-29 | 环球研究技术有限公司 | 从空气中除去二氧化碳 |
| JP4863970B2 (ja) | 2007-11-16 | 2012-01-25 | 富士フイルム株式会社 | 結晶性ポリマー微孔性膜及びその製造方法、並びに濾過用フィルタ |
| EP2212008A1 (en) * | 2007-11-20 | 2010-08-04 | Global Research Technologies, LLC | Air collector with functionalized ion exchange membrane for capturing ambient co2 |
| WO2009105566A2 (en) | 2008-02-19 | 2009-08-27 | Global Research Technologies, Llc | Extraction and sequestration of carbon dioxide |
| WO2009149292A1 (en) | 2008-06-04 | 2009-12-10 | Global Research Technologies, Llc | Laminar flow air collector with solid sorbent materials for capturing ambient co2 |
| JP5698140B2 (ja) | 2008-11-21 | 2015-04-08 | スリーエム イノベイティブ プロパティズ カンパニー | 微多孔性膜及び形成法 |
| EP2411127B1 (en) | 2009-03-26 | 2022-01-05 | BL Technologies, Inc. | Non-braided reinforced hollow fibre membrane |
| WO2010148517A1 (en) | 2009-06-26 | 2010-12-29 | Asteia Technology Inc. | Non-braided, textile-reinforced hollow fiber membrane |
| JP5220698B2 (ja) * | 2009-07-06 | 2013-06-26 | 富士フイルム株式会社 | 結晶性ポリマー微孔性膜及びその製造方法、並びに濾過用フィルタ |
| US8460591B2 (en) * | 2010-03-23 | 2013-06-11 | GM Global Technology Operations LLC | Porous membranes and methods of making the same |
| JP5470140B2 (ja) | 2010-03-31 | 2014-04-16 | 富士フイルム株式会社 | 結晶性ポリマー微孔性膜及び濾過用フィルター |
| WO2012036935A1 (en) | 2010-09-15 | 2012-03-22 | Bl Technologies, Inc. | Method to make a yarn-reinforced hollow fibre membranes around a soluble core |
| US8529814B2 (en) | 2010-12-15 | 2013-09-10 | General Electric Company | Supported hollow fiber membrane |
| US8840791B2 (en) | 2011-09-01 | 2014-09-23 | Pall Corporation | Multilayer microfiltration membrane |
| US9321014B2 (en) | 2011-12-16 | 2016-04-26 | Bl Technologies, Inc. | Hollow fiber membrane with compatible reinforcements |
| US9643129B2 (en) | 2011-12-22 | 2017-05-09 | Bl Technologies, Inc. | Non-braided, textile-reinforced hollow fiber membrane |
| US9022229B2 (en) | 2012-03-09 | 2015-05-05 | General Electric Company | Composite membrane with compatible support filaments |
| US8999454B2 (en) | 2012-03-22 | 2015-04-07 | General Electric Company | Device and process for producing a reinforced hollow fibre membrane |
| CN102623733A (zh) * | 2012-04-11 | 2012-08-01 | 北京化工大学 | 一种具有纳米微孔结构的质子交换膜的制备方法 |
| US9227362B2 (en) | 2012-08-23 | 2016-01-05 | General Electric Company | Braid welding |
| US10118124B2 (en) * | 2016-01-25 | 2018-11-06 | Ut-Battelle, Llc | Integrated membrane-pyrolysis systems and methods |
| CA3034222A1 (en) * | 2016-08-18 | 2018-02-22 | Advanced Mem-Tech Ltd. | Improved filtration membrane |
| US11851376B2 (en) | 2017-09-26 | 2023-12-26 | Delta Faucet Company | Aqueous gelcasting method for ceramic products |
| WO2019161114A1 (en) | 2018-02-16 | 2019-08-22 | Carbon Sink, Inc. | Fluidized bed extractors for capture of co2 from ambient air |
| US11117090B2 (en) | 2018-11-26 | 2021-09-14 | Palo Alto Research Center Incorporated | Electrodialytic liquid desiccant dehumidifying system |
| US12085293B2 (en) | 2021-03-17 | 2024-09-10 | Mojave Energy Systems, Inc. | Staged regenerated liquid desiccant dehumidification systems |
| WO2024129618A1 (en) | 2022-12-12 | 2024-06-20 | Mojave Energy Systems, Inc. | Liquid desiccant air conditioning system and control methods |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB816572A (en) * | 1954-09-24 | 1959-07-15 | Nat Res Dev | Improvements in and relating to polyamide membranes |
| US2783894A (en) * | 1955-03-24 | 1957-03-05 | Millipore Filter Corp | Microporous nylon film |
| BE656239A (sv) * | 1963-11-25 | |||
| US3389206A (en) * | 1965-06-16 | 1968-06-18 | Celanese Corp | Art of producing a polymeric film or the like |
| US3457339A (en) * | 1965-12-08 | 1969-07-22 | Pall Corp | Process for making end capped filter elements |
| US3551331A (en) * | 1969-09-22 | 1970-12-29 | Du Pont | Reverse osmosis separations using a treated polyamide membrane |
| GB1266180A (sv) * | 1969-12-19 | 1972-03-08 | ||
| US3894166A (en) * | 1972-08-21 | 1975-07-08 | Eastman Kodak Co | Integral reverse osmosis membrane with highly pressed woven fabric support member |
| US3784620A (en) * | 1972-12-14 | 1974-01-08 | Monsanto Co | Process for the separation of styrene from ethylbenzene |
| US3876738A (en) * | 1973-07-18 | 1975-04-08 | Amf Inc | Process for producing microporous films and products |
| US4203847A (en) * | 1977-05-25 | 1980-05-20 | Millipore Corporation | Making porous membranes and the membrane products |
| AU529368B2 (en) * | 1978-05-15 | 1983-06-02 | Pall Corporation | Preparing polyamide membrane filter media and product |
-
1980
- 1980-10-20 US US06/198,570 patent/US4340480A/en not_active Expired - Lifetime
-
1981
- 1981-09-25 IL IL63929A patent/IL63929A/xx not_active IP Right Cessation
- 1981-10-13 AT AT81108261T patent/ATE17926T1/de not_active IP Right Cessation
- 1981-10-13 EP EP81108261A patent/EP0050789B1/en not_active Expired
- 1981-10-13 DE DE8181108261T patent/DE3173774D1/de not_active Expired
- 1981-10-16 PT PT73838A patent/PT73838B/pt unknown
- 1981-10-16 JP JP56165555A patent/JPS5925603B2/ja not_active Expired
- 1981-10-19 FI FI813263A patent/FI68849C/fi not_active IP Right Cessation
- 1981-10-19 DK DK461081A patent/DK162196C/da not_active IP Right Cessation
- 1981-10-19 CA CA000388238A patent/CA1161215A/en not_active Expired
- 1981-10-19 NO NO813523A patent/NO160903C/no unknown
- 1981-10-19 ES ES506336A patent/ES506336A0/es active Granted
- 1981-10-19 AU AU76600/81A patent/AU534042B2/en not_active Ceased
- 1981-10-19 NZ NZ198693A patent/NZ198693A/en unknown
- 1981-10-19 ZA ZA817211A patent/ZA817211B/xx unknown
- 1981-10-19 BR BR8106719A patent/BR8106719A/pt unknown
- 1981-10-19 MX MX189700A patent/MX160821A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZA817211B (en) | 1982-09-29 |
| US4340480A (en) | 1982-07-20 |
| AU7660081A (en) | 1982-04-29 |
| EP0050789B1 (en) | 1986-02-12 |
| NO813523L (no) | 1982-04-21 |
| DK162196B (da) | 1991-09-30 |
| FI68849C (fi) | 1985-11-11 |
| DK162196C (da) | 1992-02-17 |
| NO160903B (no) | 1989-03-06 |
| DE3173774D1 (en) | 1986-03-27 |
| PT73838B (en) | 1983-01-17 |
| PT73838A (en) | 1981-11-01 |
| JPS5925603B2 (ja) | 1984-06-19 |
| NZ198693A (en) | 1985-05-31 |
| EP0050789A1 (en) | 1982-05-05 |
| IL63929A (en) | 1985-07-31 |
| DK461081A (da) | 1982-04-21 |
| ATE17926T1 (de) | 1986-02-15 |
| NO160903C (no) | 1989-06-14 |
| JPS5799303A (en) | 1982-06-21 |
| MX160821A (es) | 1990-05-30 |
| ES8303483A1 (es) | 1983-02-01 |
| BR8106719A (pt) | 1982-07-06 |
| ES506336A0 (es) | 1983-02-01 |
| FI813263L (fi) | 1982-04-21 |
| AU534042B2 (en) | 1983-12-22 |
| CA1161215A (en) | 1984-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: PALL CORPORATION |