WO2000061267A1 - Porous membrane - Google Patents
Porous membrane Download PDFInfo
- Publication number
- WO2000061267A1 WO2000061267A1 PCT/US2000/009831 US0009831W WO0061267A1 WO 2000061267 A1 WO2000061267 A1 WO 2000061267A1 US 0009831 W US0009831 W US 0009831W WO 0061267 A1 WO0061267 A1 WO 0061267A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- membrane
- porous membrane
- mole
- halopolymer
- integral porous
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 164
- 238000000034 method Methods 0.000 claims abstract description 39
- 229920001577 copolymer Polymers 0.000 claims abstract description 25
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims abstract description 14
- YSYRISKCBOPJRG-UHFFFAOYSA-N 4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole Chemical compound FC1=C(F)OC(C(F)(F)F)(C(F)(F)F)O1 YSYRISKCBOPJRG-UHFFFAOYSA-N 0.000 claims abstract 8
- 239000012530 fluid Substances 0.000 claims description 33
- 239000011148 porous material Substances 0.000 claims description 26
- 239000002904 solvent Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 14
- -1 polytetrafluoroethylene Polymers 0.000 claims description 12
- 229920002313 fluoropolymer Polymers 0.000 claims description 9
- 239000004811 fluoropolymer Substances 0.000 claims description 9
- HFNSTEOEZJBXIF-UHFFFAOYSA-N 2,2,4,5-tetrafluoro-1,3-dioxole Chemical compound FC1=C(F)OC(F)(F)O1 HFNSTEOEZJBXIF-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 239000000356 contaminant Substances 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 3
- 238000001471 micro-filtration Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000000108 ultra-filtration Methods 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 25
- 238000005266 casting Methods 0.000 description 23
- 239000000758 substrate Substances 0.000 description 22
- 229920000642 polymer Polymers 0.000 description 12
- 239000000835 fiber Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000000178 monomer Substances 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229920006125 amorphous polymer Polymers 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- OBTWBSRJZRCYQV-UHFFFAOYSA-N sulfuryl difluoride Chemical class FS(F)(=O)=O OBTWBSRJZRCYQV-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FRCHKSNAZZFGCA-UHFFFAOYSA-N 1,1-dichloro-1-fluoroethane Chemical compound CC(F)(Cl)Cl FRCHKSNAZZFGCA-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920001780 ECTFE Polymers 0.000 description 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Polymers OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 229920001744 Polyaldehyde Polymers 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000954 Polyglycolide Polymers 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- 239000004614 Process Aid Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- RHQDFWAXVIIEBN-UHFFFAOYSA-N Trifluoroethanol Chemical compound OCC(F)(F)F RHQDFWAXVIIEBN-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000412 dendrimer Substances 0.000 description 1
- 229920000736 dendritic polymer Polymers 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000012633 leachable Substances 0.000 description 1
- 239000002960 lipid emulsion Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- FYJQJMIEZVMYSD-UHFFFAOYSA-N perfluoro-2-butyltetrahydrofuran Chemical group FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C1(F)OC(F)(F)C(F)(F)C1(F)F FYJQJMIEZVMYSD-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001470 polyketone Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 150000008442 polyphenolic compounds Chemical class 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- 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
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
-
- 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
- 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
- B01D61/147—Microfiltration
-
- 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
- B01D61/24—Dialysis ; Membrane extraction
- B01D61/32—Controlling or regulating
-
- 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
-
- 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
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
-
- 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
- B01D71/44—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42
-
- 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
-
- 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
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/022—Asymmetric membranes
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU40819/00A AU4081900A (en) | 1999-04-14 | 2000-04-13 | Porous membrane |
CA002367547A CA2367547A1 (en) | 1999-04-14 | 2000-04-13 | Porous membrane |
JP2000610593A JP2002540928A (en) | 1999-04-14 | 2000-04-13 | Porous membrane |
US09/958,490 US6770202B1 (en) | 1999-04-14 | 2000-04-13 | Porous membrane |
EP00920244A EP1171226A1 (en) | 1999-04-14 | 2000-04-13 | Porous membrane |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12922799P | 1999-04-14 | 1999-04-14 | |
US60/129,227 | 1999-04-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000061267A1 true WO2000061267A1 (en) | 2000-10-19 |
Family
ID=22438978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/009831 WO2000061267A1 (en) | 1999-04-14 | 2000-04-13 | Porous membrane |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1171226A1 (en) |
JP (1) | JP2002540928A (en) |
AU (1) | AU4081900A (en) |
CA (1) | CA2367547A1 (en) |
WO (1) | WO2000061267A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1238999A1 (en) * | 2001-02-26 | 2002-09-11 | Ausimont S.p.A. | Porous hydrophilic membranes |
EP1239000A1 (en) * | 2001-02-26 | 2002-09-11 | Ausimont S.p.A. | Porous hydrophilic membranes |
US6921482B1 (en) * | 1999-01-29 | 2005-07-26 | Mykrolis Corporation | Skinned hollow fiber membrane and method of manufacture |
US6923846B2 (en) | 2000-06-13 | 2005-08-02 | L' Air Liquide—Societe Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude | Method of preparing composite gas separation membranes from perfluoropolymers |
US7378020B2 (en) | 2002-08-14 | 2008-05-27 | Pall Corporation | Fluoropolymer membrane |
US9359480B2 (en) | 2009-04-06 | 2016-06-07 | Entegris, Inc. | Non-dewetting porous membranes |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MXPA06006470A (en) * | 2003-12-12 | 2006-08-23 | Bard Inc C R | Implantable medical devices with fluorinated polymer coatings, and methods of coating thereof. |
US10471396B2 (en) * | 2016-08-15 | 2019-11-12 | Pall Corporation | Fluoropolymers and membranes comprising fluoropolymers (I) |
US10130918B2 (en) * | 2016-09-16 | 2018-11-20 | Pall Corporation | Fluoropolymers and membranes comprising fluoropolymers (III) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5051114A (en) * | 1989-06-15 | 1991-09-24 | Du Pont Canada Inc. | Perfluorodioxole membranes |
JPH03221130A (en) * | 1989-11-09 | 1991-09-30 | Mitsubishi Rayon Co Ltd | Fluoropolymer-based separation membrane |
US5116650A (en) * | 1990-12-03 | 1992-05-26 | W. L. Gore & Associates, Inc. | Dioxole/tfe copolymer composites |
EP0540862A2 (en) * | 1991-11-08 | 1993-05-12 | W.L. Gore & Associates GmbH | Cap for sealing openings of ear fitments |
US5749942A (en) * | 1997-02-14 | 1998-05-12 | Raychem Corporation | Apparatus for extracting a gas from a liquid and delivering the gas to a collection station |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4545862A (en) * | 1981-03-17 | 1985-10-08 | W. L. Gore & Associates, Inc. | Desalination device and process |
JPS5838707A (en) * | 1981-08-20 | 1983-03-07 | イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− | Amorphous copolymer of perfluoro-2,2-dimethyl- 1,3-dioxol |
WO1995002447A1 (en) * | 1993-07-16 | 1995-01-26 | E.I. Du Pont De Nemours And Company | Asymmetric membranes of polytetrafluoroethylene and their preparation |
US5976380A (en) * | 1997-05-01 | 1999-11-02 | Millipore Corporation | Article of manufacture including a surface modified membrane and process |
-
2000
- 2000-04-13 CA CA002367547A patent/CA2367547A1/en not_active Abandoned
- 2000-04-13 AU AU40819/00A patent/AU4081900A/en not_active Abandoned
- 2000-04-13 JP JP2000610593A patent/JP2002540928A/en active Pending
- 2000-04-13 WO PCT/US2000/009831 patent/WO2000061267A1/en active Application Filing
- 2000-04-13 EP EP00920244A patent/EP1171226A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5051114A (en) * | 1989-06-15 | 1991-09-24 | Du Pont Canada Inc. | Perfluorodioxole membranes |
US5051114B1 (en) * | 1989-06-15 | 1995-05-02 | Du Pont Canada | Perfluorodioxole membranes. |
US5051114B2 (en) * | 1989-06-15 | 1996-01-16 | Du Pont Canada | Perfluorodioxole membranes |
JPH03221130A (en) * | 1989-11-09 | 1991-09-30 | Mitsubishi Rayon Co Ltd | Fluoropolymer-based separation membrane |
US5116650A (en) * | 1990-12-03 | 1992-05-26 | W. L. Gore & Associates, Inc. | Dioxole/tfe copolymer composites |
EP0540862A2 (en) * | 1991-11-08 | 1993-05-12 | W.L. Gore & Associates GmbH | Cap for sealing openings of ear fitments |
US5749942A (en) * | 1997-02-14 | 1998-05-12 | Raychem Corporation | Apparatus for extracting a gas from a liquid and delivering the gas to a collection station |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 015, no. 504 (C - 0896) 19 December 1991 (1991-12-19) * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6921482B1 (en) * | 1999-01-29 | 2005-07-26 | Mykrolis Corporation | Skinned hollow fiber membrane and method of manufacture |
US6923846B2 (en) | 2000-06-13 | 2005-08-02 | L' Air Liquide—Societe Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude | Method of preparing composite gas separation membranes from perfluoropolymers |
EP1238999A1 (en) * | 2001-02-26 | 2002-09-11 | Ausimont S.p.A. | Porous hydrophilic membranes |
EP1239000A1 (en) * | 2001-02-26 | 2002-09-11 | Ausimont S.p.A. | Porous hydrophilic membranes |
US6896777B2 (en) | 2001-02-26 | 2005-05-24 | Solvay Solexis S.P.A. | Porous hydrophilic membranes |
US6902676B2 (en) | 2001-02-26 | 2005-06-07 | Ausimont S.P.A. | Porous hydrophilic membranes |
CN1332998C (en) * | 2001-02-26 | 2007-08-22 | 奥西蒙特股份有限公司 | Porous hydrophilic film |
US7378020B2 (en) | 2002-08-14 | 2008-05-27 | Pall Corporation | Fluoropolymer membrane |
US9359480B2 (en) | 2009-04-06 | 2016-06-07 | Entegris, Inc. | Non-dewetting porous membranes |
US10179842B2 (en) | 2009-04-06 | 2019-01-15 | Entegris, Inc. | Non-dewetting porous membranes |
Also Published As
Publication number | Publication date |
---|---|
CA2367547A1 (en) | 2000-10-19 |
AU4081900A (en) | 2000-11-14 |
EP1171226A1 (en) | 2002-01-16 |
JP2002540928A (en) | 2002-12-03 |
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