CA2293802A1 - Highly asymmetric ultrafiltration membranes - Google Patents
Highly asymmetric ultrafiltration membranes Download PDFInfo
- Publication number
- CA2293802A1 CA2293802A1 CA 2293802 CA2293802A CA2293802A1 CA 2293802 A1 CA2293802 A1 CA 2293802A1 CA 2293802 CA2293802 CA 2293802 CA 2293802 A CA2293802 A CA 2293802A CA 2293802 A1 CA2293802 A1 CA 2293802A1
- Authority
- CA
- Canada
- Prior art keywords
- membrane
- membranes
- polymer
- skin
- solvent
- 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.)
- Abandoned
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 259
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 17
- 239000011148 porous material Substances 0.000 claims abstract description 68
- 229920000642 polymer Polymers 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000001246 colloidal dispersion Methods 0.000 claims abstract description 14
- 229920005597 polymer membrane Polymers 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims description 64
- 239000002904 solvent Substances 0.000 claims description 53
- 238000010791 quenching Methods 0.000 claims description 38
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 22
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 21
- 229920002521 macromolecule Polymers 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 15
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 15
- 229920006393 polyether sulfone Polymers 0.000 claims description 15
- 235000019260 propionic acid Nutrition 0.000 claims description 15
- 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 claims description 15
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 13
- 239000004695 Polyether sulfone Substances 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 11
- 239000010409 thin film Substances 0.000 claims description 11
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 claims description 10
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 claims description 10
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims description 9
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 9
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 8
- BBMCTIGTTCKYKF-UHFFFAOYSA-N 1-heptanol Chemical compound CCCCCCCO BBMCTIGTTCKYKF-UHFFFAOYSA-N 0.000 claims description 8
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000012456 homogeneous solution Substances 0.000 claims description 8
- 229920001600 hydrophobic polymer Polymers 0.000 claims description 8
- 150000003457 sulfones Chemical class 0.000 claims description 8
- 230000007717 exclusion Effects 0.000 claims description 7
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 5
- MSXVEPNJUHWQHW-UHFFFAOYSA-N 2-methylbutan-2-ol Chemical compound CCC(C)(C)O MSXVEPNJUHWQHW-UHFFFAOYSA-N 0.000 claims description 5
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 5
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 5
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 5
- GEKVIARXKLTJAF-UHFFFAOYSA-N ethyl acetate;pentyl acetate Chemical compound CCOC(C)=O.CCCCCOC(C)=O GEKVIARXKLTJAF-UHFFFAOYSA-N 0.000 claims description 5
- 229940043265 methyl isobutyl ketone Drugs 0.000 claims description 5
- 229940093476 ethylene glycol Drugs 0.000 claims description 4
- 125000001174 sulfone group Chemical group 0.000 claims description 4
- 230000001112 coagulating effect Effects 0.000 claims description 3
- 229960004132 diethyl ether Drugs 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 description 25
- 239000012530 fluid Substances 0.000 description 10
- 238000001914 filtration Methods 0.000 description 9
- 230000000171 quenching effect Effects 0.000 description 9
- 239000002131 composite material Substances 0.000 description 8
- -1 for example Polymers 0.000 description 8
- 238000009472 formulation Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 239000012510 hollow fiber Substances 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 5
- 230000000717 retained effect Effects 0.000 description 5
- 238000001471 micro-filtration Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920002492 poly(sulfone) Polymers 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 208000007542 Paresis Diseases 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 230000010874 maintenance of protein location Effects 0.000 description 2
- NUJGJRNETVAIRJ-UHFFFAOYSA-N octanal Chemical compound CCCCCCCC=O NUJGJRNETVAIRJ-UHFFFAOYSA-N 0.000 description 2
- 208000012318 pareses Diseases 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 1
- 108090000317 Chymotrypsin Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 238000012863 analytical testing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229940098773 bovine serum albumin Drugs 0.000 description 1
- 229960002376 chymotrypsin Drugs 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229940027941 immunoglobulin g Drugs 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000001742 protein purification Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- CMXPERZAMAQXSF-UHFFFAOYSA-M sodium;1,4-bis(2-ethylhexoxy)-1,4-dioxobutane-2-sulfonate;1,8-dihydroxyanthracene-9,10-dione Chemical compound [Na+].O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=CC=C2O.CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC CMXPERZAMAQXSF-UHFFFAOYSA-M 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000005406 washing Methods 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
- B01D67/00111—Polymer pretreatment in the casting solutions
-
- 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
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/022—Asymmetric membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/34—Molecular weight or degree of polymerisation
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249961—With gradual property change within a component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
- Y10T428/249988—Of about the same composition as, and adjacent to, the void-containing component
- Y10T428/249989—Integrally formed skin
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/889,414 US5958989A (en) | 1997-07-08 | 1997-07-08 | Highly asymmetric ultrafiltration membranes |
| US08/889,414 | 1997-07-08 | ||
| PCT/US1998/013910 WO1999002246A1 (en) | 1997-07-08 | 1998-07-07 | Highly asymmetric ultrafiltration membranes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2293802A1 true CA2293802A1 (en) | 1999-01-21 |
Family
ID=25395047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2293802 Abandoned CA2293802A1 (en) | 1997-07-08 | 1998-07-07 | Highly asymmetric ultrafiltration membranes |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US5958989A (https=) |
| EP (2) | EP0994747A1 (https=) |
| JP (1) | JP4388225B2 (https=) |
| AT (1) | ATE492334T1 (https=) |
| AU (1) | AU744080B2 (https=) |
| CA (1) | CA2293802A1 (https=) |
| DE (1) | DE69842074D1 (https=) |
| WO (1) | WO1999002246A1 (https=) |
Families Citing this family (50)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU692845B2 (en) * | 1994-03-04 | 1998-06-18 | Memtec America Corporation | Large pore synthetic polymer membranes |
| US6277281B1 (en) * | 1994-03-04 | 2001-08-21 | Usf Filtration And Separations Group Inc. | Large pore synthetic polymer membranes |
| US6045899A (en) * | 1996-12-12 | 2000-04-04 | Usf Filtration & Separations Group, Inc. | Highly assymetric, hydrophilic, microfiltration membranes having large pore diameters |
| US20010048738A1 (en) * | 1997-04-03 | 2001-12-06 | Sbc Technology Resourses, Inc. | Profile management system including user interface for accessing and maintaining profile data of user subscribed telephony services |
| US6537614B1 (en) | 1998-12-18 | 2003-03-25 | Kimberly-Clark Worldwide, Inc. | Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist |
| US6274041B1 (en) | 1998-12-18 | 2001-08-14 | Kimberly-Clark Worldwide, Inc. | Integrated filter combining physical adsorption and electrokinetic adsorption |
| US6056903A (en) * | 1999-02-08 | 2000-05-02 | Osmonics, Inc. | Preparation of polyethersulfone membranes |
| US7108791B2 (en) * | 1999-09-14 | 2006-09-19 | Millipore Corporation | High-resolution virus removal methodology and filtration capsule useful therefor |
| 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 |
| US7229665B2 (en) | 2001-05-22 | 2007-06-12 | Millipore Corporation | Process of forming multilayered structures |
| US7942274B2 (en) * | 2000-05-24 | 2011-05-17 | Millipore Corporation | High-throughput asymmetric membrane |
| US6612447B1 (en) | 2000-07-24 | 2003-09-02 | Baxter International Inc. | Blood collection systems and filters using a porous membrane element |
| WO2003004690A2 (en) * | 2001-07-06 | 2003-01-16 | 454$m(3) CORPORATION | Method for isolation of independent, parallel chemical micro-reactions using a porous filter |
| US20040060867A1 (en) * | 2002-09-27 | 2004-04-01 | Bmc Industries, Inc. | Membrane support devices and methods of manufacturing |
| US7229580B2 (en) * | 2003-05-05 | 2007-06-12 | Porogen Corporation | Preparation of porous poly(aryl ether) articles and use thereof |
| KR100850116B1 (ko) | 2006-03-06 | 2008-08-04 | 웅진케미칼 주식회사 | 에어 응고법에 의한 폴리에테르술폰 멤브레인의 제조방법 |
| EP2024068B1 (de) * | 2006-05-06 | 2012-01-18 | Membrana GmbH | Ultrafiltrationsmembran |
| US20070272608A1 (en) * | 2006-05-24 | 2007-11-29 | Clark Mark M | Colloidal polysulfone fibers |
| US9346021B2 (en) * | 2008-12-02 | 2016-05-24 | Membrane Distillation Desalination Ltd., Co. | Composite membranes for membrane distillation and related methods of manufacture |
| US8840791B2 (en) | 2011-09-01 | 2014-09-23 | Pall Corporation | Multilayer microfiltration membrane |
| US9005496B2 (en) | 2012-02-01 | 2015-04-14 | Pall Corporation | Asymmetric membranes |
| EP2636442A1 (en) | 2012-03-05 | 2013-09-11 | Gambro Lundia AB | Low cut-off ultrafiltration membranes |
| US9248414B2 (en) | 2012-03-30 | 2016-02-02 | Pall Corporation | Large pore polymeric membrane |
| US20130264277A1 (en) | 2012-04-04 | 2013-10-10 | Pall Corporation | Antimicrobial filter |
| US20140339165A1 (en) | 2013-05-14 | 2014-11-20 | Pall Corporation | High throughput membrane with rough surface |
| US20140339164A1 (en) | 2013-05-14 | 2014-11-20 | Pall Corporation | High throughput membrane |
| US9808770B2 (en) | 2013-05-14 | 2017-11-07 | Pall Corporation | High throughput membrane with channels |
| US10294267B2 (en) | 2013-12-04 | 2019-05-21 | Pall Corporation | Membrane with surface channels |
| US20150190760A1 (en) | 2014-01-06 | 2015-07-09 | Pall Corporation | Membrane with plurality of charges |
| US9610548B2 (en) | 2014-02-28 | 2017-04-04 | Pall Corporation | Composite porous polymeric membrane with high void volume |
| US9737860B2 (en) | 2014-02-28 | 2017-08-22 | Pall Corporation | Hollow fiber membrane having hexagonal voids |
| US9446355B2 (en) | 2014-02-28 | 2016-09-20 | Pall Corporation | Porous polymeric membrane with high void volume |
| US9302228B2 (en) | 2014-02-28 | 2016-04-05 | Pall Corporation | Charged porous polymeric membrane with high void volume |
| US9764292B2 (en) | 2014-02-28 | 2017-09-19 | Pall Corporation | Porous polymeric membrane with high void volume |
| US9776142B2 (en) | 2014-02-28 | 2017-10-03 | Pall Corporation | Porous polymeric membrane with high void volume |
| US9561473B2 (en) | 2014-02-28 | 2017-02-07 | Pall Corporation | Charged hollow fiber membrane having hexagonal voids |
| US20150246320A1 (en) | 2014-02-28 | 2015-09-03 | Pall Corporation | Porous polymeric membrane with high void volume |
| US9260569B2 (en) | 2014-06-30 | 2016-02-16 | Pall Corporation | Hydrophilic block copolymers and method of preparation thereof (III) |
| US9718924B2 (en) | 2014-06-30 | 2017-08-01 | Pall Corporation | Hydrophilic block copolymers and membranes prepared therefrom (II) |
| US9303133B2 (en) | 2014-06-30 | 2016-04-05 | Pall Corporation | Hydrophilic membranes and method of preparation thereof (IV) |
| US9394407B2 (en) | 2014-06-30 | 2016-07-19 | Pall Corporation | Hydrophilic block copolymers and membranes prepared therefrom (I) |
| US9469737B2 (en) | 2014-08-20 | 2016-10-18 | Pall Corporation | Robust polymeric membrane |
| US9724649B2 (en) | 2015-06-25 | 2017-08-08 | Pall Corporation | Self-wetting porous membranes (I) |
| US10239023B2 (en) | 2015-06-25 | 2019-03-26 | Pall Corporation | Self-wetting porous membranes (II) |
| EP3574986A1 (en) | 2018-05-30 | 2019-12-04 | 3M Innovative Properties Company | Membrane for capillary microfiltration |
| EP3756754A1 (en) | 2019-06-27 | 2020-12-30 | 3M Innovative Properties Company | Reactive additives in membrane preparation |
| EP3756753B1 (en) | 2019-06-27 | 2022-08-31 | Sartorius Stedim Biotech GmbH | Combination of pyrrolidone based solvents for the production of porous membranes |
| US20210147628A1 (en) | 2019-11-19 | 2021-05-20 | Kyoto University | Hydrophilic polyimide, membranes prepared therefrom, and uses thereof |
| KR102525810B1 (ko) | 2021-04-21 | 2023-04-26 | 한국화학연구원 | 다공성 불소계 분리막 및 이의 제조 방법 |
| CN113842792A (zh) * | 2021-09-18 | 2021-12-28 | 杭州科百特过滤器材有限公司 | 一种除病毒用不对称的pes滤膜及其制备方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4774039A (en) * | 1980-03-14 | 1988-09-27 | Brunswick Corporation | Dispersing casting of integral skinned highly asymmetric polymer membranes |
| US4629563B1 (en) * | 1980-03-14 | 1997-06-03 | Memtec North America | Asymmetric membranes |
| CA1202837A (en) * | 1980-03-14 | 1986-04-08 | Wolfgang J. Wrasidlo | Asymmetric membranes and process therefor |
| JPS58132111A (ja) * | 1982-01-29 | 1983-08-06 | Asahi Chem Ind Co Ltd | ポリスルホン中空糸 |
| US4629583A (en) * | 1985-06-11 | 1986-12-16 | Jones And Vining, Incorporated | Phosphorescent polymer-containing compositions and articles made therefrom |
| JPS61293502A (ja) * | 1985-06-24 | 1986-12-24 | Sumitomo Bakelite Co Ltd | 血液浄化用分離膜 |
| JPS6214905A (ja) | 1985-07-15 | 1987-01-23 | Fuji Photo Film Co Ltd | 微孔性膜の製造方法 |
| US4871494A (en) * | 1986-08-15 | 1989-10-03 | Permea, Inc. | Process for forming asymmetric gas separation membranes having graded density skins |
| US5021893A (en) * | 1987-12-17 | 1991-06-04 | Duplitronics, Inc. | High speed tape duplicating machine |
| AU692845B2 (en) * | 1994-03-04 | 1998-06-18 | Memtec America Corporation | Large pore synthetic polymer membranes |
| US5522991A (en) * | 1994-07-20 | 1996-06-04 | Millipore Investment Holdings Limited | Cellulosic ultrafiltration membrane |
-
1997
- 1997-07-08 US US08/889,414 patent/US5958989A/en not_active Expired - Lifetime
-
1998
- 1998-07-07 EP EP19980931794 patent/EP0994747A1/en not_active Ceased
- 1998-07-07 JP JP2000501826A patent/JP4388225B2/ja not_active Expired - Fee Related
- 1998-07-07 WO PCT/US1998/013910 patent/WO1999002246A1/en not_active Ceased
- 1998-07-07 AT AT07110923T patent/ATE492334T1/de not_active IP Right Cessation
- 1998-07-07 EP EP07110923A patent/EP1842581B1/en not_active Expired - Lifetime
- 1998-07-07 DE DE69842074T patent/DE69842074D1/de not_active Expired - Lifetime
- 1998-07-07 CA CA 2293802 patent/CA2293802A1/en not_active Abandoned
- 1998-07-07 AU AU81818/98A patent/AU744080B2/en not_active Ceased
- 1998-12-18 US US09/216,379 patent/US5928774A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1842581A1 (en) | 2007-10-10 |
| ATE492334T1 (de) | 2011-01-15 |
| JP4388225B2 (ja) | 2009-12-24 |
| US5958989A (en) | 1999-09-28 |
| DE69842074D1 (de) | 2011-02-03 |
| AU744080B2 (en) | 2002-02-14 |
| JP2001509429A (ja) | 2001-07-24 |
| EP0994747A1 (en) | 2000-04-26 |
| AU8181898A (en) | 1999-02-08 |
| EP1842581B1 (en) | 2010-12-22 |
| WO1999002246A1 (en) | 1999-01-21 |
| US5928774A (en) | 1999-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5958989A (en) | Highly asymmetric ultrafiltration membranes | |
| JP4465103B2 (ja) | 高非対称性ポリエーテルスルホン濾過膜 | |
| US4629563A (en) | Asymmetric membranes | |
| JP2747194B2 (ja) | インテグリティー試験の可能な湿潤−乾燥可逆性限外濾過膜およびその試験法 | |
| US6165363A (en) | Hollow fiber type filtration membrane | |
| EP0036315B1 (en) | Anisotropic membranes | |
| US20030038081A1 (en) | High strength asymmetric cellulosic membrane | |
| US6183640B1 (en) | Highly asymmetric anionic membranes | |
| EP3216515B1 (en) | Hollow fiber filtration membrane | |
| CN100457242C (zh) | 改良的除去中分子的透析膜 | |
| US20020162792A1 (en) | Polymer membrane meshes | |
| US6258272B1 (en) | Internal hydrophilic membranes from blended anionic copolymers | |
| EP1149624B1 (en) | Highly asymmetric anionic membranes | |
| EP1149625B1 (en) | Internal hydrophilic membranes from blended anionic copolymers | |
| JP4689790B2 (ja) | アニオンコポリマーブレンドの内部親水性膜 | |
| WO2016182015A1 (ja) | 多孔質中空糸膜及びその製造方法 | |
| JP3464000B1 (ja) | 高性能中空糸状精密濾過膜の製造方法 | |
| JPH0756084B2 (ja) | ポリスルホン系樹脂中空系およびその製造方法 | |
| JPH10243999A (ja) | ポリスルホン系血液透析膜 | |
| KR20250131018A (ko) | 높은 표면기공도 및 내부 나노기공 층을 갖는 바이러스 제거용 분리막 및 이의 제조 방법 | |
| JPH1170326A (ja) | ポリアクリロニトリル系膜 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |