CA1140308A - Membrane with porous surface - Google Patents
Membrane with porous surfaceInfo
- Publication number
- CA1140308A CA1140308A CA000332858A CA332858A CA1140308A CA 1140308 A CA1140308 A CA 1140308A CA 000332858 A CA000332858 A CA 000332858A CA 332858 A CA332858 A CA 332858A CA 1140308 A CA1140308 A CA 1140308A
- Authority
- CA
- Canada
- Prior art keywords
- membrane
- polymer
- bath
- liquid
- temperature
- 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
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 229920000642 polymer Polymers 0.000 claims abstract description 36
- 239000011148 porous material Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 239000008240 homogeneous mixture Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 229910002056 binary alloy Inorganic materials 0.000 claims abstract description 6
- 229920001059 synthetic polymer Polymers 0.000 claims abstract description 5
- 238000009987 spinning Methods 0.000 claims description 16
- 230000035699 permeability Effects 0.000 claims description 12
- -1 polypropylene Polymers 0.000 claims description 11
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- MJWIPTSHMLSLFE-UHFFFAOYSA-N 2-[hexadecyl(2-hydroxyethyl)amino]ethanol Chemical compound CCCCCCCCCCCCCCCCN(CCO)CCO MJWIPTSHMLSLFE-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000001471 micro-filtration Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 2
- 238000005191 phase separation Methods 0.000 claims 5
- 230000001706 oxygenating effect Effects 0.000 claims 1
- 238000010494 dissociation reaction Methods 0.000 abstract description 10
- 230000005593 dissociations Effects 0.000 abstract description 10
- 210000004379 membrane Anatomy 0.000 description 44
- 239000000126 substance Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000012071 phase Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 239000004014 plasticizer Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 206010013457 Dissociation Diseases 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 208000018459 dissociative disease Diseases 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- OECYLXRJTRWLJP-UHFFFAOYSA-N CCCCCC.NC1=CC=CC=C1 Chemical compound CCCCCC.NC1=CC=CC=C1 OECYLXRJTRWLJP-UHFFFAOYSA-N 0.000 description 2
- 229940022682 acetone Drugs 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 241000027294 Fusi Species 0.000 description 1
- 241000288140 Gruiformes Species 0.000 description 1
- 241000283986 Lepus Species 0.000 description 1
- 241000100287 Membras Species 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 210000001772 blood platelet Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001690 micro-dialysis Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 206010037833 rales Diseases 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs 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
- B01D67/0002—Organic membrane manufacture
- B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
-
- 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
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
- B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
- C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
- C08J2201/0543—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
- C08J2201/0545—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition
- C08J2201/0546—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition the non-solvent being organic
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Artificial Filaments (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP2833623.4 | 1978-07-31 | ||
| DE19782833623 DE2833623A1 (de) | 1978-07-31 | 1978-07-31 | Folien |
| DEP2833493.2 | 1978-07-31 | ||
| DE2833493A DE2833493C2 (de) | 1978-07-31 | 1978-07-31 | Hohlfäden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1140308A true CA1140308A (en) | 1983-02-01 |
Family
ID=25775227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000332858A Expired CA1140308A (en) | 1978-07-31 | 1979-07-30 | Membrane with porous surface |
Country Status (14)
| Country | Link |
|---|---|
| AU (1) | AU531433B2 (es) |
| BR (1) | BR7904888A (es) |
| CA (1) | CA1140308A (es) |
| CH (1) | CH644789A5 (es) |
| DK (1) | DK152439C (es) |
| ES (1) | ES482967A0 (es) |
| FI (1) | FI70733C (es) |
| FR (1) | FR2432329A1 (es) |
| GB (1) | GB2026381B (es) |
| IT (1) | IT1118157B (es) |
| LU (1) | LU81555A1 (es) |
| NL (1) | NL189969C (es) |
| NO (1) | NO153879C (es) |
| SE (1) | SE7906441L (es) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2047874B (en) * | 1979-03-17 | 1983-12-21 | Akzo Nv | Apparatus in which heat is transferred through hollow threads as well as hollow threads suitable for this purpose |
| JPS56159128A (en) * | 1980-05-15 | 1981-12-08 | Asahi Chem Ind Co Ltd | Thermoplastic resin porous film and production thereof |
| DE3049557A1 (de) * | 1980-12-31 | 1982-07-29 | Akzo Gmbh, 5600 Wuppertal | Poroese schlaeuche |
| AU540708B2 (en) * | 1982-01-25 | 1984-11-29 | Mitsubishi Rayon Company Limited | Water purifying method and system |
| DE3205289C2 (de) * | 1982-02-15 | 1984-10-31 | Akzo Gmbh, 5600 Wuppertal | Verfahren zur Herstellung von porösen Körpern mit einstellbarem Gesamtporenvolumen, einstellbarer Porengröße und einstellbarer Porenwandung |
| US4539256A (en) * | 1982-09-09 | 1985-09-03 | Minnesota Mining And Manufacturing Co. | Microporous sheet material, method of making and articles made therewith |
| CA1226112A (en) * | 1982-09-09 | 1987-09-01 | Minnesota Mining And Manufacturing Company | Microporous sheet material, method of making and articles made therewith |
| EP0112614A3 (en) * | 1982-09-30 | 1985-05-08 | McNeilab, Inc. | Semipermeable membranes and method of making the same |
| EP0110580A3 (en) * | 1982-11-03 | 1986-06-11 | Gelman Sciences, Inc. | Improved process for removing pyrogens utilizing a hydrophobic microporous membrane |
| DE3301268A1 (de) * | 1983-01-17 | 1984-07-26 | Akzo Gmbh, 5600 Wuppertal | Verfahren und vorrichtung zum herstellen von hohlfadenbuendeln |
| DE3481817D1 (de) * | 1983-07-30 | 1990-05-10 | Akzo Gmbh | Poren aufweisende formkoerper. |
| JPS6190705A (ja) * | 1984-10-09 | 1986-05-08 | Terumo Corp | 中空糸膜の製造方法 |
| US4778601A (en) * | 1984-10-09 | 1988-10-18 | Millipore Corporation | Microporous membranes of ultrahigh molecular weight polyethylene |
| DE3676211D1 (de) * | 1985-02-25 | 1991-01-31 | Tonen Corp | Mikroporoese membran aus einem alpha-olefinpolymer mit ultrahoch-molekulargewicht. |
| JPH0775622B2 (ja) * | 1985-07-16 | 1995-08-16 | テルモ株式会社 | 人工肺用中空糸膜、その製造方法およびその中空糸膜を用いた人工肺 |
| US4609584A (en) * | 1985-09-19 | 1986-09-02 | Minnesota Mining And Manufacturing Company | Absorptive devices |
| US4726989A (en) * | 1986-12-11 | 1988-02-23 | Minnesota Mining And Manufacturing | Microporous materials incorporating a nucleating agent and methods for making same |
| US4867881A (en) * | 1987-09-14 | 1989-09-19 | Minnesota Minning And Manufacturing Company | Orientied microporous film |
| BR8907138A (pt) * | 1988-11-10 | 1991-02-13 | Memtec Ltd | Processo de preparacao de material polimerico poroso e produto resultante |
| JPH1092444A (ja) | 1996-09-13 | 1998-04-10 | Japan Gore Tex Inc | 電気化学反応装置用固体高分子電解質複合体及びそれを用いた電気化学反応装置 |
| US6277104B1 (en) | 1997-08-25 | 2001-08-21 | Mcneil-Ppc, Inc. | Air permeable, liquid impermeable barrier structures and products made therefrom |
| US6635384B2 (en) | 1998-03-06 | 2003-10-21 | Gore Enterprise Holdings, Inc. | Solid electrolyte composite for electrochemical reaction apparatus |
-
1979
- 1979-07-11 NO NO792308A patent/NO153879C/no unknown
- 1979-07-18 CH CH662779A patent/CH644789A5/de not_active IP Right Cessation
- 1979-07-19 IT IT49805/79A patent/IT1118157B/it active
- 1979-07-26 DK DK314779A patent/DK152439C/da not_active IP Right Cessation
- 1979-07-27 NL NLAANVRAGE7905816,A patent/NL189969C/xx not_active IP Right Cessation
- 1979-07-27 AU AU49328/79A patent/AU531433B2/en not_active Ceased
- 1979-07-27 FI FI792365A patent/FI70733C/fi not_active IP Right Cessation
- 1979-07-27 LU LU81555A patent/LU81555A1/de unknown
- 1979-07-30 GB GB7926410A patent/GB2026381B/en not_active Expired
- 1979-07-30 FR FR7919613A patent/FR2432329A1/fr active Granted
- 1979-07-30 SE SE7906441A patent/SE7906441L/xx not_active Application Discontinuation
- 1979-07-30 CA CA000332858A patent/CA1140308A/en not_active Expired
- 1979-07-30 BR BR7904888A patent/BR7904888A/pt not_active IP Right Cessation
- 1979-07-30 ES ES482967A patent/ES482967A0/es active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| NL7905816A (nl) | 1980-02-04 |
| DK314779A (da) | 1980-02-01 |
| ES8101135A1 (es) | 1980-12-01 |
| FR2432329A1 (fr) | 1980-02-29 |
| FR2432329B1 (es) | 1984-01-27 |
| NO792308L (no) | 1980-02-01 |
| NO153879B (no) | 1986-03-03 |
| IT1118157B (it) | 1986-02-24 |
| GB2026381B (en) | 1982-08-18 |
| AU531433B2 (en) | 1983-08-25 |
| FI70733B (fi) | 1986-06-26 |
| AU4932879A (en) | 1980-02-07 |
| DK152439B (da) | 1988-02-29 |
| NO153879C (no) | 1986-06-11 |
| GB2026381A (en) | 1980-02-06 |
| FI792365A (fi) | 1980-02-01 |
| FI70733C (fi) | 1986-10-06 |
| NL189969B (nl) | 1993-04-16 |
| BR7904888A (pt) | 1980-04-22 |
| LU81555A1 (de) | 1979-10-31 |
| ES482967A0 (es) | 1980-12-01 |
| IT7949805A0 (it) | 1979-07-19 |
| NL189969C (nl) | 1993-09-16 |
| SE7906441L (sv) | 1980-02-01 |
| DK152439C (da) | 1988-09-12 |
| CH644789A5 (de) | 1984-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1140308A (en) | Membrane with porous surface | |
| US4564488A (en) | Methods for the preparation of porous fibers and membranes | |
| DE69427022T2 (de) | Verfahren zum herstellen von mikroporösen polyphenylensulphide(pps) membranen | |
| DE69730896T2 (de) | Verfahren zur Herstellung einer porösen Polypropylenfolie mit hoher Zugfestigkeit | |
| DE69115000T2 (de) | Mikroporöse Membranen aus Polyetheretherketon-Polymeren und niedrigschmelzenden, kristallisierbaren Polymeren und Verfahren zu deren Herstellung. | |
| DE68923319T2 (de) | Fluorkohlenstoff- Membranen und Verfahren zur Herstellung von Fluorkohlenstoff-Membranen. | |
| EP0357021B1 (de) | Verfahren zur Herstellung von Membranen | |
| DE3782128T2 (de) | Verfahren und spinnloesung zur herstellung von asymmetrischen gastrennungsmembranen, deren haut einen dichtegradienten aufweist. | |
| US4976859A (en) | Integral asymmetric polyether-sulfone membrane, process for its production, and use for ultrafiltration and microfiltration | |
| US4290987A (en) | Process for preparing microporous hollow fibers | |
| US4539256A (en) | Microporous sheet material, method of making and articles made therewith | |
| EP1051236B1 (de) | Geschäumte poröse membranen aus thermoplastischen polymeren sowie verfahren und vorrichtung zu ihrer herstellung | |
| KR920005672B1 (ko) | 미공성 시이트 물질과 이의 제조방법 | |
| DE2833493C2 (de) | Hohlfäden | |
| JPS6052612A (ja) | 成形体を製造する方法及びそのための装置 | |
| US3532527A (en) | Permeable separatory membranes | |
| GB2047874A (en) | An Apparatus in which Heat is transferred through Hollow Threads as well as Hollow Threads suitable for this purpose | |
| CA1103866A (en) | Hollow fiber membranes of ethylene copolymers and process for use | |
| DE3147579A1 (de) | "hohlfasermembran zur trennung von gasen und verfahren zu ihrer herstellung" | |
| DE3327638A1 (de) | Poren aufweisende formkoerper | |
| DE2833623C2 (es) | ||
| AT380179B (de) | Verfahren zur herstellung einer membran mit poroeser struktur in form eines hohlfadens | |
| DE3908037A1 (de) | Polycarbonat-mischungen | |
| WO1994017974A1 (en) | Process of making microporous pps membranes | |
| DE3854429T2 (de) | Herstellung und Verwendung von Verbundmembranen. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |