JPH0535008B2 - - Google Patents
Info
- Publication number
- JPH0535008B2 JPH0535008B2 JP1026501A JP2650189A JPH0535008B2 JP H0535008 B2 JPH0535008 B2 JP H0535008B2 JP 1026501 A JP1026501 A JP 1026501A JP 2650189 A JP2650189 A JP 2650189A JP H0535008 B2 JPH0535008 B2 JP H0535008B2
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- membrane filter
- filter according
- solvent
- impermeable
- 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 claims description 100
- 239000000463 material Substances 0.000 claims description 32
- 239000002904 solvent Substances 0.000 claims description 29
- 239000000203 mixture Substances 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 20
- 239000007789 gas Substances 0.000 description 13
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 10
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 5
- 235000019253 formic acid Nutrition 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 206010000372 Accident at work Diseases 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000004660 morphological change Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
- B01D63/061—Manufacturing thereof
-
- 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
- B01D65/003—Membrane bonding or sealing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3803341.0 | 1988-02-04 | ||
| DE3803341A DE3803341A1 (de) | 1988-02-04 | 1988-02-04 | Fluidundurchlaessige stellen aufweisende poroese membranfilter und ihre verwendung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH026827A JPH026827A (ja) | 1990-01-11 |
| JPH0535008B2 true JPH0535008B2 (OSRAM) | 1993-05-25 |
Family
ID=6346630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1026501A Granted JPH026827A (ja) | 1988-02-04 | 1989-02-04 | 不透過性個所を有する多孔質膜フィルタ及びその用途 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4969997A (OSRAM) |
| EP (1) | EP0327025B1 (OSRAM) |
| JP (1) | JPH026827A (OSRAM) |
| DE (1) | DE3803341A1 (OSRAM) |
Families Citing this family (60)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3928934C2 (de) * | 1989-08-31 | 1999-04-29 | Sartorius Gmbh | Textilverstärktes mikroporöses Membranfilter, Verfahren zu seiner Herstellung und seine Verwendung |
| US5458719A (en) * | 1993-03-24 | 1995-10-17 | Pall Corporation | Method for bonding a porous medium to a substrate |
| DE4339810C1 (de) * | 1993-11-23 | 1994-12-08 | Seitz Filter Werke | Verfahren zur partiellen Modifizierung von porösen, hydrophilen Filtermembranen, nachbehandelte Filtermembranen und mit ihnen bestückte Filtrationsmodule, insbesondere Filterkerzen |
| DE4432628B4 (de) * | 1994-09-14 | 2008-01-10 | Sartorius Biotech Gmbh | Dead-End-Filtrationseinheit zur Abtrennung von Stoffen mit Membranadsorbern |
| DE19543955C2 (de) | 1995-11-25 | 1998-12-24 | Sartorius Gmbh | Auf Integrität testbare Filtrationseinheit mit hydrophilen, porösen Membranen |
| CN1134286C (zh) | 1996-12-20 | 2004-01-14 | Usf过滤分离集团公司 | 净化方法 |
| US7316780B1 (en) | 1999-01-29 | 2008-01-08 | Pall Corporation | Range separation devices and processes |
| AUPQ680100A0 (en) | 2000-04-10 | 2000-05-11 | Usf Filtration And Separations Group Inc. | Hollow fibre restraining system |
| AUPR094600A0 (en) * | 2000-10-23 | 2000-11-16 | Usf Filtration And Separations Group Inc. | Fibre membrane arrangement |
| FR2817769B1 (fr) * | 2000-12-08 | 2003-09-12 | Hospal Ind | Appareil pour le traitement extracorporel du sang ou du plasma comprenant une membrane semi-permeable humide et procedes de fabrication |
| AUPR421501A0 (en) | 2001-04-04 | 2001-05-03 | U.S. Filter Wastewater Group, Inc. | Potting method |
| WO2003002239A2 (en) * | 2001-06-29 | 2003-01-09 | Millipore Corporation | Laminated edge filter structure and method of making |
| AUPR692401A0 (en) | 2001-08-09 | 2001-08-30 | U.S. Filter Wastewater Group, Inc. | Method of cleaning membrane modules |
| CZ2002184A3 (cs) * | 2002-01-16 | 2003-09-17 | Eidos, S. R. O. | Mikroporézní membránová dutá vlákna s podélně proměnnými mechanickými a filtračními vlastnostmi a způsob jejich přípravy |
| US7247238B2 (en) | 2002-02-12 | 2007-07-24 | Siemens Water Technologies Corp. | Poly(ethylene chlorotrifluoroethylene) membranes |
| WO2003101500A1 (de) * | 2002-05-29 | 2003-12-11 | Oxyphen Ag | Dosiermembran |
| AUPS300602A0 (en) | 2002-06-18 | 2002-07-11 | U.S. Filter Wastewater Group, Inc. | Methods of minimising the effect of integrity loss in hollow fibre membrane modules |
| US6884341B2 (en) * | 2002-10-02 | 2005-04-26 | G6 Science Corp. | Filter device to capture a desired amount of material |
| WO2004033078A1 (en) | 2002-10-10 | 2004-04-22 | U.S. Filter Wastewater Group, Inc. | Backwash method |
| US6905594B2 (en) * | 2002-10-11 | 2005-06-14 | G6 Science Corp. | Filter apparatus and methods to capture a desired amount of material from a sample suspension for monolayer deposition, analysis or other uses |
| AU2002953111A0 (en) | 2002-12-05 | 2002-12-19 | U. S. Filter Wastewater Group, Inc. | Mixing chamber |
| CA2535360C (en) | 2003-08-29 | 2013-02-12 | U.S. Filter Wastewater Group, Inc. | Backwash |
| CA2544626C (en) | 2003-11-14 | 2016-01-26 | U.S. Filter Wastewater Group, Inc. | Closed aeration and backwash device for use with membrane filtration module |
| WO2005092799A1 (en) | 2004-03-26 | 2005-10-06 | U.S. Filter Wastewater Group, Inc. | Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis |
| AU2005240524C1 (en) | 2004-04-22 | 2009-12-24 | Evoqua Water Technologies Llc | Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials |
| NZ588094A (en) | 2004-08-20 | 2012-04-27 | Siemens Water Tech Corp | Potting head for hollow fibre filter module |
| US8790515B2 (en) | 2004-09-07 | 2014-07-29 | Evoqua Water Technologies Llc | Reduction of backwash liquid waste |
| NZ553742A (en) | 2004-09-14 | 2010-09-30 | Siemens Water Tech Corp | Methods and apparatus for removing solids from a membrane module |
| US8377305B2 (en) | 2004-09-15 | 2013-02-19 | Siemens Industry, Inc. | Continuously variable aeration |
| US7591950B2 (en) | 2004-11-02 | 2009-09-22 | Siemens Water Technologies Corp. | Submerged cross-flow filtration |
| CA2591408C (en) | 2004-12-24 | 2015-07-21 | Siemens Water Technologies Corp. | Cleaning in membrane filtration systems |
| NZ555987A (en) | 2004-12-24 | 2009-08-28 | Siemens Water Tech Corp | Simple gas scouring method and apparatus |
| WO2006116797A1 (en) | 2005-04-29 | 2006-11-09 | Siemens Water Technologies Corp. | Chemical clean for membrane filter |
| EP1945333B1 (en) | 2005-08-22 | 2011-06-08 | Siemens Industry, Inc. | An assembly for water filtration to minimise backwash volume |
| WO2007044415A2 (en) | 2005-10-05 | 2007-04-19 | Siemens Water Technologies Corp. | Method and apparatus for treating wastewater |
| US7563363B2 (en) | 2005-10-05 | 2009-07-21 | Siemens Water Technologies Corp. | System for treating wastewater |
| US7455765B2 (en) | 2006-01-25 | 2008-11-25 | Siemens Water Technologies Corp. | Wastewater treatment system and method |
| WO2008051546A2 (en) | 2006-10-24 | 2008-05-02 | Siemens Water Technologies Corp. | Infiltration/inflow control for membrane bioreactor |
| EP2129629A1 (en) | 2007-04-02 | 2009-12-09 | Siemens Water Technologies Corp. | Improved infiltration/inflow control for membrane bioreactor |
| US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
| CN106040002B (zh) | 2007-05-29 | 2020-01-10 | 懿华水处理技术有限责任公司 | 使用脉冲气提泵的膜清洗 |
| US8043512B2 (en) * | 2008-04-11 | 2011-10-25 | Pall Corporation | Fluid treatment arrangements and methods |
| CA2731774A1 (en) | 2008-07-24 | 2010-01-28 | Siemens Water Technologies Corp. | Frame system for membrane filtration modules |
| US8048315B2 (en) * | 2008-07-28 | 2011-11-01 | Pall Corporation | Fluid treatment arrangements and methods |
| US8652331B2 (en) | 2008-08-20 | 2014-02-18 | Siemens Water Technologies Llc | Membrane system backwash energy efficiency |
| KR101694426B1 (ko) | 2008-09-02 | 2017-01-09 | 나트릭스 세퍼레이션즈, 인코포레이티드 | 크로마토그래피 막, 이를 포함하는 장치 및 이의 이용방법 |
| AU2010101488B4 (en) | 2009-06-11 | 2013-05-02 | Evoqua Water Technologies Llc | Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane |
| US20110132819A1 (en) * | 2009-09-14 | 2011-06-09 | David Scott Kolstad | Delivery System for the Removal of Contaminants in Lubricating and Hydraulic Fluids |
| HUE045642T2 (hu) | 2010-04-30 | 2020-01-28 | Evoqua Water Tech Llc | Folyadékáramlás elosztó készülék |
| CN103118766B (zh) | 2010-09-24 | 2016-04-13 | 伊沃夸水处理技术有限责任公司 | 膜过滤系统的流体控制歧管 |
| US9873088B2 (en) | 2011-05-17 | 2018-01-23 | Natrix Separations Inc. | Layered tubular membranes for chromatography, and methods of use thereof |
| KR101964484B1 (ko) | 2011-09-30 | 2019-04-01 | 에보쿠아 워터 테크놀로지스 엘엘씨 | 개선된 매니폴드 배열 |
| CN103958034B (zh) | 2011-09-30 | 2017-03-22 | 伊沃夸水处理技术有限责任公司 | 隔离阀 |
| DE102012008471B4 (de) | 2012-04-27 | 2018-05-24 | Sartorius Stedim Biotech Gmbh | Filterelement mit verbesserter Prüfbarkeit nach trockenem Bedampfen, Verfahren zu dessen Herstellung und dessen Verwendung |
| AU2013280452B2 (en) | 2012-06-28 | 2017-07-20 | Evoqua Water Technologies Llc | A potting method |
| AU2013231145B2 (en) | 2012-09-26 | 2017-08-17 | Evoqua Water Technologies Llc | Membrane potting methods |
| US9764289B2 (en) | 2012-09-26 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane securement device |
| US9815027B2 (en) | 2012-09-27 | 2017-11-14 | Evoqua Water Technologies Llc | Gas scouring apparatus for immersed membranes |
| HUE061765T2 (hu) | 2013-10-02 | 2023-08-28 | Rohm & Haas Electronic Mat Singapore Pte Ltd | Berendezés membrán filtrációs modul javítására |
| WO2017011068A1 (en) | 2015-07-14 | 2017-01-19 | Evoqua Water Technologies Llc | Aeration device for filtration system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3401798A (en) * | 1965-01-04 | 1968-09-17 | Dorr Oliver Inc | Cylindrically stacked and spirally configured semi-permeable membrane laminate apparatus |
| US3464562A (en) * | 1967-01-12 | 1969-09-02 | Eastman Kodak Co | Dialyzing apparatus and method of making the same |
| GB1168722A (en) * | 1967-02-22 | 1969-10-29 | Atomic Energy Authority Uk | Improvements in or relating to Reverse Osmosis. |
| US3407252A (en) * | 1967-05-11 | 1968-10-22 | Pall Corp | Process for preparing filters having a microporous layer attached thereto |
| US4392958A (en) * | 1980-02-14 | 1983-07-12 | Millipore Corporation | Method and structure for sealing tubular filter elements |
| CA1202837A (en) * | 1980-03-14 | 1986-04-08 | Wolfgang J. Wrasidlo | Asymmetric membranes and process therefor |
| AU1773483A (en) * | 1982-05-28 | 1983-12-16 | Amf Inc. | Filter element having microporous filter membrane |
| US4527999A (en) * | 1984-03-23 | 1985-07-09 | Abcor, Inc. | Separation membrane and method of preparing and using same |
| EP0217482A1 (en) * | 1985-07-19 | 1987-04-08 | Hr Textron Inc. | Filter element |
-
1988
- 1988-02-04 DE DE3803341A patent/DE3803341A1/de active Granted
-
1989
- 1989-01-31 US US07/304,153 patent/US4969997A/en not_active Expired - Lifetime
- 1989-01-31 EP EP89101639A patent/EP0327025B1/de not_active Expired - Lifetime
- 1989-02-04 JP JP1026501A patent/JPH026827A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| US4969997A (en) | 1990-11-13 |
| DE3803341A1 (de) | 1989-08-10 |
| EP0327025B1 (de) | 1993-04-07 |
| DE3803341C2 (OSRAM) | 1990-10-31 |
| EP0327025A1 (de) | 1989-08-09 |
| JPH026827A (ja) | 1990-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0535008B2 (OSRAM) | ||
| FI68849C (fi) | Foerfarande foer framstaellning av vaetskefila i alkohol oloesliga polyamidmembraner polyamidhartsmembranfilmer och deras anvaendning som filterelement | |
| JP4038049B2 (ja) | 多層構造物の形成方法 | |
| US4384047A (en) | Porous vinylidene fluoride polymer membrane and process for its preparation | |
| Shishatskiy et al. | Polyimide asymmetric membranes for hydrogen separation: influence of formation conditions on gas transport properties | |
| US5304307A (en) | Chargedasymmetric mosaic membrances | |
| US20060086657A1 (en) | Process of forming multilayered structures | |
| JPS5925602B2 (ja) | ポリアミド製微孔質膜の製造方法 | |
| JP3424954B2 (ja) | パターン化した多孔質重合体製品及びその製造法 | |
| JPH0529489B2 (OSRAM) | ||
| JPS63139930A (ja) | 微孔性膜の製造方法 | |
| JP2023502732A (ja) | 親水性膜 | |
| US12447442B2 (en) | Microfiltration membrane | |
| US5320754A (en) | Pan composite membranes | |
| JP2530133B2 (ja) | 微孔性膜 | |
| JPH0561970B2 (OSRAM) | ||
| Ventoza et al. | Poly (ether sulfone) membranes for desalination: membrane preparation and characterization | |
| JP3588886B2 (ja) | 複合逆浸透膜の製造方法及びその装置 | |
| DE3941861C1 (en) | Membrane for pervaporation, vapour permeation and gas sepn. - made by compacting porous polymer support layer by chemical or thermal means | |
| JPH04503325A (ja) | 耐熱性微小孔材の製造法および製品 | |
| JPS647802B2 (OSRAM) | ||
| JP3536501B2 (ja) | 複合半透膜の製造方法及びその装置 | |
| JPH1066840A (ja) | 精密ろ過膜カートリツジフイルター | |
| JPS63141611A (ja) | 微孔性膜の製造方法 | |
| JPS63139929A (ja) | 微孔性膜の製造方法 |