DE4445973B4 - Polyvinylidenfluorid-Membran - Google Patents
Polyvinylidenfluorid-Membran Download PDFInfo
- Publication number
- DE4445973B4 DE4445973B4 DE4445973A DE4445973A DE4445973B4 DE 4445973 B4 DE4445973 B4 DE 4445973B4 DE 4445973 A DE4445973 A DE 4445973A DE 4445973 A DE4445973 A DE 4445973A DE 4445973 B4 DE4445973 B4 DE 4445973B4
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- membranes
- casting solution
- viruses
- polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 331
- 239000002033 PVDF binder Substances 0.000 title claims abstract description 30
- 229920002981 polyvinylidene fluoride Polymers 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 230000009467 reduction Effects 0.000 claims abstract description 40
- 239000011148 porous material Substances 0.000 claims abstract description 37
- 241001515965 unidentified phage Species 0.000 claims abstract description 23
- 238000009826 distribution Methods 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims description 57
- 241000700605 Viruses Species 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 38
- 238000001914 filtration Methods 0.000 claims description 31
- 239000012530 fluid Substances 0.000 claims description 24
- 239000000178 monomer Substances 0.000 claims description 20
- 230000005855 radiation Effects 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 13
- 238000001179 sorption measurement Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 10
- 102000004169 proteins and genes Human genes 0.000 claims description 10
- 108090000623 proteins and genes Proteins 0.000 claims description 10
- 238000010791 quenching Methods 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 6
- 238000010894 electron beam technology Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- 125000005395 methacrylic acid group Chemical group 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 16
- 239000000243 solution Substances 0.000 description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 30
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 22
- 238000010438 heat treatment Methods 0.000 description 15
- 238000010998 test method Methods 0.000 description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 11
- 238000000108 ultra-filtration Methods 0.000 description 11
- 239000003431 cross linking reagent Substances 0.000 description 9
- 230000007547 defect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000009736 wetting Methods 0.000 description 9
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 239000012071 phase Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- -1 n-octanol Chemical class 0.000 description 7
- 229920006395 saturated elastomer Polymers 0.000 description 7
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000000144 pharmacologic effect Effects 0.000 description 3
- 239000008363 phosphate buffer Substances 0.000 description 3
- 229920001223 polyethylene glycol Polymers 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 241000283707 Capra Species 0.000 description 2
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010960 commercial process Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000009295 crossflow filtration Methods 0.000 description 2
- LOKCTEFSRHRXRJ-UHFFFAOYSA-I dipotassium trisodium dihydrogen phosphate hydrogen phosphate dichloride Chemical compound P(=O)(O)(O)[O-].[K+].P(=O)(O)([O-])[O-].[Na+].[Na+].[Cl-].[K+].[Cl-].[Na+] LOKCTEFSRHRXRJ-UHFFFAOYSA-I 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000010559 graft polymerization reaction Methods 0.000 description 2
- 208000006454 hepatitis Diseases 0.000 description 2
- 231100000283 hepatitis Toxicity 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 239000002953 phosphate buffered saline Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 description 1
- 241001136792 Alle Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000537222 Betabaculovirus Species 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 241000991587 Enterovirus C Species 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000696272 Gull adenovirus Species 0.000 description 1
- 229920006370 Kynar Polymers 0.000 description 1
- PEEHTFAAVSWFBL-UHFFFAOYSA-N Maleimide Chemical compound O=C1NC(=O)C=C1 PEEHTFAAVSWFBL-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 208000000474 Poliomyelitis Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 241000125945 Protoparvovirus Species 0.000 description 1
- CIOAGBVUUVVLOB-NJFSPNSNSA-N Strontium-90 Chemical compound [90Sr] CIOAGBVUUVVLOB-NJFSPNSNSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- TVFDJXOCXUVLDH-RNFDNDRNSA-N cesium-137 Chemical compound [137Cs] TVFDJXOCXUVLDH-RNFDNDRNSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000009928 pasteurization Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229940057847 polyethylene glycol 600 Drugs 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000000611 regression analysis Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- 125000005590 trimellitic acid group Chemical class 0.000 description 1
- 241001529453 unidentified herpesvirus Species 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- 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
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0093—Chemical modification
- B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
-
- 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
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0095—Drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0011—Casting solutions therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0093—Chemical modification
-
- 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
- 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
- B01D71/34—Polyvinylidene fluoride
-
- 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
- B01D2323/00—Details relating to membrane preparation
- B01D2323/30—Cross-linking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/38—Graft polymerization
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/18—Membrane materials having mixed charged functional groups
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- External Artificial Organs (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Graft Or Block Polymers (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17375593A | 1993-12-22 | 1993-12-22 | |
| US08/173,755 | 1993-12-22 | ||
| US08/327,622 | 1994-10-24 | ||
| US08/327,622 US5736051A (en) | 1993-12-22 | 1994-10-24 | Polyvinylidene fluoride membrane and method for removing viruses from solutions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE4445973A1 DE4445973A1 (de) | 1995-06-29 |
| DE4445973B4 true DE4445973B4 (de) | 2006-06-29 |
Family
ID=26869498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE4445973A Expired - Lifetime DE4445973B4 (de) | 1993-12-22 | 1994-12-22 | Polyvinylidenfluorid-Membran |
Country Status (11)
| Country | Link |
|---|---|
| JP (2) | JP3178772B2 (ja) |
| CA (1) | CA2138681C (ja) |
| CH (1) | CH688612A5 (ja) |
| DE (1) | DE4445973B4 (ja) |
| DK (1) | DK144294A (ja) |
| ES (1) | ES2109146B1 (ja) |
| FR (1) | FR2713951B1 (ja) |
| GB (1) | GB2285010B (ja) |
| IT (1) | IT1267191B1 (ja) |
| NL (1) | NL9402134A (ja) |
| SE (1) | SE510792C2 (ja) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999047593A1 (fr) * | 1998-03-16 | 1999-09-23 | Asahi Kasei Kogyo Kabushiki Kaisha | Film microporeux |
| TW581709B (en) | 1999-10-22 | 2004-04-01 | Asahi Kasei Corp | Heat-resistant microporous film |
| ATE536929T1 (de) | 2001-08-01 | 2011-12-15 | Asahi Kasei Medical Co Ltd | Mehrschichtige, mikroporöse folie |
| AU2003301399B2 (en) | 2002-10-18 | 2006-07-06 | Asahi Kasei Medical Co., Ltd. | Microporous hydrophilic membrane |
| WO2007078878A1 (en) * | 2005-12-30 | 2007-07-12 | 3M Innovative Properties Company | Functionalized substrates |
| ITMI20060601A1 (it) | 2006-03-30 | 2007-09-30 | Gvs Spa | Procedimento per la preparazione di membrane microporose in polivinilidenfluoruro pvdf |
| JP5026888B2 (ja) * | 2007-08-14 | 2012-09-19 | 日東電工株式会社 | 表面に親水性ポリマーを有するフッ素樹脂成形体およびその製造方法 |
| US9174174B2 (en) | 2008-09-19 | 2015-11-03 | Toray Industries, Inc. | Separation membrane and method for producing the same |
| FR3089226B1 (fr) * | 2018-11-30 | 2021-08-06 | Arkema France | Procédé de préparation de films de polymère fluoré poreux |
| CN114028956B (zh) * | 2021-11-18 | 2023-05-26 | 浙江机电职业技术学院 | 反渗透膜及其制备方法和应用 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0250337A1 (fr) * | 1986-06-20 | 1987-12-23 | Rhone-Poulenc Recherches | Membranes semi-perméables séchables et hydrophiles à base de polyfluorure de vinylidène |
| EP0508162A1 (en) * | 1991-04-11 | 1992-10-14 | Pall Corporation | Uniform polyvinylidene difluoride membrane and method of making |
| WO1993022034A1 (en) * | 1992-05-06 | 1993-11-11 | Costar Corporation | Polyvinylidene fluoride microporous membrane and method |
| EP0430082B1 (en) * | 1989-11-30 | 1996-06-19 | Millipore Corporation | Porous membrane formed from an interpenetrating polymer network having hydrophilic surface |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5019260A (en) * | 1986-12-23 | 1991-05-28 | Pall Corporation | Filtration media with low protein adsorbability |
| JP2898665B2 (ja) * | 1989-09-28 | 1999-06-02 | テルモ株式会社 | 血漿分離膜およびそれを用いた血漿分離器 |
-
1994
- 1994-12-01 GB GB9424308A patent/GB2285010B/en not_active Expired - Lifetime
- 1994-12-07 IT IT94TO000998A patent/IT1267191B1/it active IP Right Grant
- 1994-12-07 SE SE9404249A patent/SE510792C2/sv not_active IP Right Cessation
- 1994-12-13 ES ES09402529A patent/ES2109146B1/es not_active Expired - Fee Related
- 1994-12-15 NL NL9402134A patent/NL9402134A/nl active Search and Examination
- 1994-12-19 DK DK144294A patent/DK144294A/da not_active Application Discontinuation
- 1994-12-20 FR FR9415340A patent/FR2713951B1/fr not_active Expired - Lifetime
- 1994-12-21 CA CA002138681A patent/CA2138681C/en not_active Expired - Lifetime
- 1994-12-21 CH CH03856/94A patent/CH688612A5/fr not_active IP Right Cessation
- 1994-12-22 DE DE4445973A patent/DE4445973B4/de not_active Expired - Lifetime
- 1994-12-22 JP JP33615794A patent/JP3178772B2/ja not_active Expired - Lifetime
-
2000
- 2000-10-24 JP JP2000324381A patent/JP3443735B2/ja not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0250337A1 (fr) * | 1986-06-20 | 1987-12-23 | Rhone-Poulenc Recherches | Membranes semi-perméables séchables et hydrophiles à base de polyfluorure de vinylidène |
| EP0430082B1 (en) * | 1989-11-30 | 1996-06-19 | Millipore Corporation | Porous membrane formed from an interpenetrating polymer network having hydrophilic surface |
| EP0508162A1 (en) * | 1991-04-11 | 1992-10-14 | Pall Corporation | Uniform polyvinylidene difluoride membrane and method of making |
| DE69232938T2 (de) * | 1991-04-11 | 2003-11-27 | Pall Corp | Verfahren zur Herstellung einer einheitlichen, mikroporösen hydrophilen Polyvinylidendifluorid-Membran |
| WO1993022034A1 (en) * | 1992-05-06 | 1993-11-11 | Costar Corporation | Polyvinylidene fluoride microporous membrane and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07265674A (ja) | 1995-10-17 |
| IT1267191B1 (it) | 1997-01-28 |
| SE9404249D0 (sv) | 1994-12-07 |
| JP3443735B2 (ja) | 2003-09-08 |
| CA2138681C (en) | 2001-08-14 |
| GB2285010B (en) | 1997-11-19 |
| FR2713951A1 (fr) | 1995-06-23 |
| DK144294A (da) | 1995-06-23 |
| JP3178772B2 (ja) | 2001-06-25 |
| ES2109146A1 (es) | 1998-01-01 |
| GB2285010A (en) | 1995-06-28 |
| GB9424308D0 (en) | 1995-01-18 |
| SE9404249L (sv) | 1995-06-23 |
| ITTO940998A0 (it) | 1994-12-07 |
| ES2109146B1 (es) | 1998-08-16 |
| NL9402134A (nl) | 1995-07-17 |
| FR2713951B1 (fr) | 1996-12-06 |
| JP2001187325A (ja) | 2001-07-10 |
| SE510792C2 (sv) | 1999-06-21 |
| DE4445973A1 (de) | 1995-06-29 |
| ITTO940998A1 (it) | 1996-06-07 |
| CA2138681A1 (en) | 1995-06-23 |
| CH688612A5 (fr) | 1997-12-15 |
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