DE3712491A1 - Mikrofiltrations-membran, verfahren zu ihrer herstellung und deren einsatz - Google Patents
Mikrofiltrations-membran, verfahren zu ihrer herstellung und deren einsatzInfo
- Publication number
- DE3712491A1 DE3712491A1 DE19873712491 DE3712491A DE3712491A1 DE 3712491 A1 DE3712491 A1 DE 3712491A1 DE 19873712491 DE19873712491 DE 19873712491 DE 3712491 A DE3712491 A DE 3712491A DE 3712491 A1 DE3712491 A1 DE 3712491A1
- Authority
- DE
- Germany
- Prior art keywords
- substrate
- plasma
- area
- hollow fibers
- membrane
- 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.)
- Withdrawn
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 74
- 238000001471 micro-filtration Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 title claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000758 substrate Substances 0.000 claims abstract description 87
- 239000011148 porous material Substances 0.000 claims abstract description 33
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 27
- 238000009832 plasma treatment Methods 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 18
- 239000000126 substance Substances 0.000 claims abstract description 16
- 230000005660 hydrophilic surface Effects 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 239000000084 colloidal system Substances 0.000 claims abstract description 6
- 239000007864 aqueous solution Substances 0.000 claims abstract description 3
- 239000012510 hollow fiber Substances 0.000 claims description 64
- 239000007789 gas Substances 0.000 claims description 53
- 238000011282 treatment Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000012466 permeate Substances 0.000 claims description 13
- 229920000098 polyolefin Polymers 0.000 claims description 13
- -1 polypropylene Polymers 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 13
- 238000004113 cell culture Methods 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000003570 air Substances 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 238000000338 in vitro Methods 0.000 claims description 6
- 235000015097 nutrients Nutrition 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 5
- 230000002906 microbiologic effect Effects 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 230000012010 growth Effects 0.000 claims description 4
- 230000002503 metabolic effect Effects 0.000 claims description 4
- 238000000108 ultra-filtration Methods 0.000 claims description 4
- 239000004812 Fluorinated ethylene propylene Substances 0.000 claims description 3
- 150000001413 amino acids Chemical class 0.000 claims description 3
- 229920009441 perflouroethylene propylene Polymers 0.000 claims description 3
- 102000004169 proteins and genes Human genes 0.000 claims description 3
- 108090000623 proteins and genes Proteins 0.000 claims description 3
- 230000010261 cell growth Effects 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims 2
- 235000013311 vegetables Nutrition 0.000 claims 2
- 108010093096 Immobilized Enzymes Proteins 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 239000012141 concentrate Substances 0.000 claims 1
- 230000000977 initiatory effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 4
- 230000000813 microbial effect Effects 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 13
- 244000005700 microbiome Species 0.000 description 13
- 239000000463 material Substances 0.000 description 9
- 239000012982 microporous membrane Substances 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229920013683 Celanese Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 210000001822 immobilized cell Anatomy 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000005297 pyrex Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000012465 retentate Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000589614 Pseudomonas stutzeri Species 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000002210 biocatalytic effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- NSAODVHAXBZWGW-UHFFFAOYSA-N cadmium silver Chemical compound [Ag].[Cd] NSAODVHAXBZWGW-UHFFFAOYSA-N 0.000 description 1
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229920001600 hydrophobic polymer Polymers 0.000 description 1
- 230000005661 hydrophobic surface Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- HNONEKILPDHFOL-UHFFFAOYSA-M tolonium chloride Chemical compound [Cl-].C1=C(C)C(N)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 HNONEKILPDHFOL-UHFFFAOYSA-M 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- B01D67/009—After-treatment of organic or inorganic membranes with wave-energy, particle-radiation or plasma
-
- 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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/14—Surface shaping of articles, e.g. embossing; Apparatus therefor by plasma treatment
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M25/00—Means for supporting, enclosing or fixing the microorganisms, e.g. immunocoatings
- C12M25/10—Hollow fibers or tubes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/16—Hollow fibers
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
- C12M47/02—Separating microorganisms from the culture medium; Concentration of biomass
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Biotechnology (AREA)
- General Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biomedical Technology (AREA)
- Microbiology (AREA)
- Sustainable Development (AREA)
- Genetics & Genomics (AREA)
- General Health & Medical Sciences (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Immunology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85114286A | 1986-04-11 | 1986-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3712491A1 true DE3712491A1 (de) | 1987-10-15 |
Family
ID=25310072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19873712491 Withdrawn DE3712491A1 (de) | 1986-04-11 | 1987-04-13 | Mikrofiltrations-membran, verfahren zu ihrer herstellung und deren einsatz |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS62294407A (da) |
| AU (1) | AU7135087A (da) |
| DE (1) | DE3712491A1 (da) |
| DK (1) | DK185787A (da) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3929648C1 (da) * | 1989-09-06 | 1990-11-29 | Sartorius Gmbh, 3400 Goettingen, De | |
| EP0513389A1 (en) * | 1990-11-29 | 1992-11-19 | Nitto Denko Corporation | Liquid-filtering film and filtering device using said film |
| EP0574588A1 (en) * | 1991-12-27 | 1993-12-22 | Mitsui Petrochemical Industries, Ltd. | Biaxially oriented high-molecular polyethylene film and production thereof, and surface-modified, biaxially oriented high-molecular polyethylene film and production thereof |
| WO1994017904A1 (de) * | 1993-02-10 | 1994-08-18 | Akzo Nobel N.V. | Modifizierte membran für medizinische zwecke |
| WO1997025080A1 (en) * | 1996-01-11 | 1997-07-17 | Medtronic, Inc. | Surface treatment for micro-conduits employed in blood heat exchange system |
| EP0887098A2 (en) * | 1991-09-11 | 1998-12-30 | Pall Corporation | Gas plasma treated porous medium and method of separation using same |
| US6074871A (en) * | 1989-10-31 | 2000-06-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Cell-culture reactor having a porous organic polymer membrane |
| DE19918221C1 (de) * | 1999-04-22 | 2000-07-27 | Delphin Umwelttechnik Gmbh | Verfahren zur physikalischen Elimination von Keimen, Schweb- und Feststoffen aus Wasser |
| WO2000056808A2 (en) * | 1999-03-24 | 2000-09-28 | Gyros Ab | Surface and its manufacture and uses |
| US6387271B1 (en) | 1995-09-14 | 2002-05-14 | Pall Corporation | Method for separating solid particulates from a liquid |
| WO2002046282A1 (en) * | 2000-12-07 | 2002-06-13 | Exxonmobil Oil Corporation | Plasma treated porous film |
| DE102012001524A1 (de) | 2012-01-16 | 2013-07-18 | Ewald Dörken Ag | Verfahren zur Herstellung einer hydrophilen Polymermembran und Polymermembran |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5082347B2 (ja) * | 2006-09-05 | 2012-11-28 | 旭硝子株式会社 | 分離膜の製造方法および水処理用分離膜 |
| CN115073795B (zh) * | 2022-07-14 | 2023-12-05 | 佛山科学技术学院 | 一种基于二氧化碳等离子体的疏水性聚合物材料表面亲水改性方法 |
-
1987
- 1987-04-09 AU AU71350/87A patent/AU7135087A/en not_active Abandoned
- 1987-04-10 DK DK185787A patent/DK185787A/da not_active Application Discontinuation
- 1987-04-11 JP JP8965987A patent/JPS62294407A/ja active Pending
- 1987-04-13 DE DE19873712491 patent/DE3712491A1/de not_active Withdrawn
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3929648C1 (da) * | 1989-09-06 | 1990-11-29 | Sartorius Gmbh, 3400 Goettingen, De | |
| WO1991003310A1 (de) * | 1989-09-06 | 1991-03-21 | Sartorius Ag | Verfahren zur oberflächenpfropfung von formkörpern, insbesondere auch mikroporösen membranen aus stickstoffhaltigen polymeren |
| US6074871A (en) * | 1989-10-31 | 2000-06-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Cell-culture reactor having a porous organic polymer membrane |
| EP0513389A1 (en) * | 1990-11-29 | 1992-11-19 | Nitto Denko Corporation | Liquid-filtering film and filtering device using said film |
| EP0513389A4 (en) * | 1990-11-29 | 1993-03-10 | Nitto Denko Corporation | Liquid-filtering film and filtering device using said film |
| US5282965A (en) * | 1990-11-29 | 1994-02-01 | Nitto Denko Corporation | Membrane filter for liquids and filtering device using the same |
| EP0887098A2 (en) * | 1991-09-11 | 1998-12-30 | Pall Corporation | Gas plasma treated porous medium and method of separation using same |
| EP0887098A3 (en) * | 1991-09-11 | 2000-05-10 | Pall Corporation | Gas plasma treated porous medium and method of separation using same |
| EP0574588A4 (da) * | 1991-12-27 | 1994-02-02 | Mitsui Petrochemical Industries, Ltd. | |
| EP0574588A1 (en) * | 1991-12-27 | 1993-12-22 | Mitsui Petrochemical Industries, Ltd. | Biaxially oriented high-molecular polyethylene film and production thereof, and surface-modified, biaxially oriented high-molecular polyethylene film and production thereof |
| WO1994017904A1 (de) * | 1993-02-10 | 1994-08-18 | Akzo Nobel N.V. | Modifizierte membran für medizinische zwecke |
| EP0876198B1 (en) * | 1995-09-14 | 2002-08-21 | Pall Corporation | Method and device for removing iron from aqueous liquids |
| US6387271B1 (en) | 1995-09-14 | 2002-05-14 | Pall Corporation | Method for separating solid particulates from a liquid |
| US5922281A (en) * | 1996-01-11 | 1999-07-13 | Medtronic, Inc. | Surface treatment for micro-conduits employed in blood heat exchange system |
| WO1997025080A1 (en) * | 1996-01-11 | 1997-07-17 | Medtronic, Inc. | Surface treatment for micro-conduits employed in blood heat exchange system |
| WO2000056808A2 (en) * | 1999-03-24 | 2000-09-28 | Gyros Ab | Surface and its manufacture and uses |
| WO2000056808A3 (en) * | 1999-03-24 | 2001-03-22 | Amersham Pharm Biotech Ab | Surface and its manufacture and uses |
| US6383385B1 (en) | 1999-04-22 | 2002-05-07 | Delphin Filtertechnik Gmbh | Filter unit for the physical elimination of microbes, suspended matter and solids from water |
| DE19918221C1 (de) * | 1999-04-22 | 2000-07-27 | Delphin Umwelttechnik Gmbh | Verfahren zur physikalischen Elimination von Keimen, Schweb- und Feststoffen aus Wasser |
| WO2002046282A1 (en) * | 2000-12-07 | 2002-06-13 | Exxonmobil Oil Corporation | Plasma treated porous film |
| DE102012001524A1 (de) | 2012-01-16 | 2013-07-18 | Ewald Dörken Ag | Verfahren zur Herstellung einer hydrophilen Polymermembran und Polymermembran |
| WO2013107629A1 (de) | 2012-01-16 | 2013-07-25 | Ewald Dörken Ag | Polyolefin-membran mit intrinischer hydrophilität und deren verfahren zur herstellung |
Also Published As
| Publication number | Publication date |
|---|---|
| AU7135087A (en) | 1987-10-15 |
| DK185787D0 (da) | 1987-04-10 |
| JPS62294407A (ja) | 1987-12-21 |
| DK185787A (da) | 1987-10-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |