DE3928934C1 - - Google Patents
Info
- Publication number
- DE3928934C1 DE3928934C1 DE3928934A DE3928934A DE3928934C1 DE 3928934 C1 DE3928934 C1 DE 3928934C1 DE 3928934 A DE3928934 A DE 3928934A DE 3928934 A DE3928934 A DE 3928934A DE 3928934 C1 DE3928934 C1 DE 3928934C1
- Authority
- DE
- Germany
- Prior art keywords
- textile
- membrane filter
- casting solution
- film
- solution film
- 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 - Fee Related
Links
- 239000012528 membrane Substances 0.000 claims description 79
- 239000004753 textile Substances 0.000 claims description 51
- 238000005266 casting Methods 0.000 claims description 49
- 230000002787 reinforcement Effects 0.000 claims description 31
- 239000012779 reinforcing material Substances 0.000 claims description 25
- 238000001556 precipitation Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 239000004953 Aliphatic polyamide Substances 0.000 claims description 6
- 229920003231 aliphatic polyamide Polymers 0.000 claims description 6
- 229920001059 synthetic polymer Polymers 0.000 claims description 5
- 238000009295 crossflow filtration Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 2
- 229920006302 stretch film Polymers 0.000 claims description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims 4
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims 4
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims 4
- 235000011037 adipic acid Nutrition 0.000 claims 2
- 239000001361 adipic acid Substances 0.000 claims 2
- 238000006068 polycondensation reaction Methods 0.000 claims 2
- 239000000758 substrate Substances 0.000 claims 1
- 239000002904 solvent Substances 0.000 description 21
- 239000004744 fabric Substances 0.000 description 14
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-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 7
- 235000019253 formic acid Nutrition 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 239000008187 granular material Substances 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000004957 Zytel Substances 0.000 description 2
- 229920006102 Zytel® Polymers 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000007614 solvation Methods 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
- 238000009736 wetting Methods 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
- B01D69/10—Supported membranes; Membrane supports
- B01D69/107—Organic support material
- B01D69/1071—Woven, non-woven or net mesh
-
- 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
- B01D69/10—Supported membranes; Membrane supports
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3928934A DE3928934C2 (de) | 1989-08-31 | 1989-08-31 | Textilverstärktes mikroporöses Membranfilter, Verfahren zu seiner Herstellung und seine Verwendung |
| DE59010335T DE59010335D1 (de) | 1989-08-31 | 1990-08-23 | Textilverstärkter Membranfilter, Verfahren zu seiner Herstellung und seine Verwendung |
| EP90116178A EP0417525B1 (de) | 1989-08-31 | 1990-08-23 | Textilverstärkter Membranfilter, Verfahren zu seiner Herstellung und seine Verwendung |
| JP2230444A JPH03174229A (ja) | 1989-08-31 | 1990-08-30 | 繊維強化膜フィルターと、その製造方法と応用 |
| US07/575,272 US5227070A (en) | 1989-08-31 | 1990-08-30 | Textile reinforced membrane filter, method for manufacture and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3928934A DE3928934C2 (de) | 1989-08-31 | 1989-08-31 | Textilverstärktes mikroporöses Membranfilter, Verfahren zu seiner Herstellung und seine Verwendung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3928934C1 true DE3928934C1 (US07122603-20061017-C00045.png) | 1990-10-11 |
| DE3928934C2 DE3928934C2 (de) | 1999-04-29 |
Family
ID=6388343
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3928934A Expired - Fee Related DE3928934C2 (de) | 1989-08-31 | 1989-08-31 | Textilverstärktes mikroporöses Membranfilter, Verfahren zu seiner Herstellung und seine Verwendung |
| DE59010335T Expired - Fee Related DE59010335D1 (de) | 1989-08-31 | 1990-08-23 | Textilverstärkter Membranfilter, Verfahren zu seiner Herstellung und seine Verwendung |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE59010335T Expired - Fee Related DE59010335D1 (de) | 1989-08-31 | 1990-08-23 | Textilverstärkter Membranfilter, Verfahren zu seiner Herstellung und seine Verwendung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5227070A (US07122603-20061017-C00045.png) |
| EP (1) | EP0417525B1 (US07122603-20061017-C00045.png) |
| JP (1) | JPH03174229A (US07122603-20061017-C00045.png) |
| DE (2) | DE3928934C2 (US07122603-20061017-C00045.png) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0501425A1 (de) * | 1991-02-28 | 1992-09-02 | Hoechst Aktiengesellschaft | Poröse, chemikalien- und temperaturbeständige semipermeable Membran |
| EP0513796A2 (en) * | 1991-05-15 | 1992-11-19 | Pall Corporation | Composite structure and method of making |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2257930B (en) * | 1991-07-03 | 1995-04-19 | Pall Corp | An impervious article with a microporous surface and process for its production |
| DE19729456C1 (de) * | 1997-07-10 | 1998-10-22 | Sartorius Gmbh | Integral vliesverstärkte poröse Membranen |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2453128A1 (de) * | 1973-11-09 | 1975-05-15 | Daicel Ltd | Auf einen traeger aufgebrachte semipermeable membran und verfahren zu ihrer herstellung |
| DE2658408A1 (de) * | 1975-12-29 | 1977-06-30 | Asahi Chemical Ind | Semipermeable verbundmembran und verfahren zu ihrer herstellung |
| US4091821A (en) * | 1976-11-02 | 1978-05-30 | Scorzo Samuel P | Smoking article having an ignition suppression disk |
| US4340479A (en) * | 1978-05-15 | 1982-07-20 | Pall Corporation | Process for preparing hydrophilic polyamide membrane filter media and product |
| US4341605A (en) * | 1981-01-16 | 1982-07-27 | E. I. Du Pont De Nemours And Company | Process for cation permeable membrane with reinforcement fabric embedded therein and product thereof |
| EP0096306A2 (en) * | 1982-05-28 | 1983-12-21 | Amf Incorporated | Filter element having microporous filter membrane |
| EP0173500A1 (en) * | 1984-08-21 | 1986-03-05 | Pall Corporation | Methods of concentrating ligands and active membranes used therefor |
| EP0183096A1 (en) * | 1984-11-05 | 1986-06-04 | The Dow Chemical Company | Membrane unit for electrolytic cell |
| US4594162A (en) * | 1984-02-13 | 1986-06-10 | American Filtrona Corporation | Pleated filter and method and apparatus for fabricating same |
| DE3544206C2 (US07122603-20061017-C00045.png) * | 1984-12-27 | 1988-10-20 | Asahi Kasei Kogyo K.K., Osaka, Jp | |
| EP0310706A1 (fr) * | 1987-11-20 | 1989-04-12 | Alfred Henri Parmentier | Membranes pour plateaux de filtres-presses |
| DE3803341A1 (de) * | 1988-02-04 | 1989-08-10 | Sartorius Gmbh | Fluidundurchlaessige stellen aufweisende poroese membranfilter und ihre verwendung |
| DE3829010A1 (de) * | 1988-08-26 | 1990-03-01 | Zuericher Beuteltuchfabrik Ag | Filtermedium fuer kuchenbildende filtrationsprozesse |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2944017A (en) * | 1956-12-17 | 1960-07-05 | Millipore Filter Corp | Filter medium |
| GB912278A (en) * | 1959-01-02 | 1962-12-05 | Yardley Internat Corp | Improvements relating to membranes and to methods of forming such membranes |
| US3276996A (en) * | 1963-07-15 | 1966-10-04 | Lazare Leon | Separating water from saline solutions |
| SE434914B (sv) * | 1975-07-07 | 1984-08-27 | Jonsson U R S | Forfarande for att ur en suspension av bakterier och ett vetskeformigt medium genom filtrering avskilja mediet under samtidig anrikning av bakterierna |
| DE2622814A1 (de) * | 1976-05-21 | 1977-12-01 | Seitz Filter Werke | Membranfilter mit faserstoff-verstaerkung und verfahren zu seiner herstellung |
| CA1126455A (en) * | 1979-09-13 | 1982-06-29 | Oleh Kutowy | Method of casting a reverse osmosis or ultrafiltration, tubular, polymeric membrane |
| ES8308901A1 (es) * | 1981-10-21 | 1983-10-01 | Du Pont | "mejoras introducidas en un procedimiento para la preparacion de una membrana de osmosis inversa". |
| DE3280189D1 (de) * | 1981-12-18 | 1990-07-19 | Cuno Inc | Verstaerkte mikroporoese membran. |
| US4645602A (en) * | 1981-12-18 | 1987-02-24 | Barnes Jr Robert G | Process for producing reinforced microporous membrane |
| DE3240143A1 (de) * | 1982-10-29 | 1984-05-03 | Akzo Gmbh, 5600 Wuppertal | Verfahren zum einbetten von membranen in ein thermoplastisches material |
| US4824568A (en) * | 1986-05-16 | 1989-04-25 | Millipore Corporation | Composite ultrafiltration membranes |
| US4770777A (en) * | 1987-01-29 | 1988-09-13 | Parker Hannifin Corporation | Microporous asymmetric polyamide membranes |
-
1989
- 1989-08-31 DE DE3928934A patent/DE3928934C2/de not_active Expired - Fee Related
-
1990
- 1990-08-23 EP EP90116178A patent/EP0417525B1/de not_active Expired - Lifetime
- 1990-08-23 DE DE59010335T patent/DE59010335D1/de not_active Expired - Fee Related
- 1990-08-30 US US07/575,272 patent/US5227070A/en not_active Expired - Fee Related
- 1990-08-30 JP JP2230444A patent/JPH03174229A/ja active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2453128A1 (de) * | 1973-11-09 | 1975-05-15 | Daicel Ltd | Auf einen traeger aufgebrachte semipermeable membran und verfahren zu ihrer herstellung |
| DE2658408A1 (de) * | 1975-12-29 | 1977-06-30 | Asahi Chemical Ind | Semipermeable verbundmembran und verfahren zu ihrer herstellung |
| US4091821A (en) * | 1976-11-02 | 1978-05-30 | Scorzo Samuel P | Smoking article having an ignition suppression disk |
| US4340479A (en) * | 1978-05-15 | 1982-07-20 | Pall Corporation | Process for preparing hydrophilic polyamide membrane filter media and product |
| US4340479B1 (en) * | 1978-05-15 | 1996-08-27 | Pall Corp | Process for preparing hydrophilic polyamide membrane filter media and product |
| US4341605A (en) * | 1981-01-16 | 1982-07-27 | E. I. Du Pont De Nemours And Company | Process for cation permeable membrane with reinforcement fabric embedded therein and product thereof |
| EP0096306A2 (en) * | 1982-05-28 | 1983-12-21 | Amf Incorporated | Filter element having microporous filter membrane |
| US4594162A (en) * | 1984-02-13 | 1986-06-10 | American Filtrona Corporation | Pleated filter and method and apparatus for fabricating same |
| EP0173500A1 (en) * | 1984-08-21 | 1986-03-05 | Pall Corporation | Methods of concentrating ligands and active membranes used therefor |
| EP0183096A1 (en) * | 1984-11-05 | 1986-06-04 | The Dow Chemical Company | Membrane unit for electrolytic cell |
| DE3544206C2 (US07122603-20061017-C00045.png) * | 1984-12-27 | 1988-10-20 | Asahi Kasei Kogyo K.K., Osaka, Jp | |
| EP0310706A1 (fr) * | 1987-11-20 | 1989-04-12 | Alfred Henri Parmentier | Membranes pour plateaux de filtres-presses |
| DE3803341A1 (de) * | 1988-02-04 | 1989-08-10 | Sartorius Gmbh | Fluidundurchlaessige stellen aufweisende poroese membranfilter und ihre verwendung |
| DE3829010A1 (de) * | 1988-08-26 | 1990-03-01 | Zuericher Beuteltuchfabrik Ag | Filtermedium fuer kuchenbildende filtrationsprozesse |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0501425A1 (de) * | 1991-02-28 | 1992-09-02 | Hoechst Aktiengesellschaft | Poröse, chemikalien- und temperaturbeständige semipermeable Membran |
| EP0513796A2 (en) * | 1991-05-15 | 1992-11-19 | Pall Corporation | Composite structure and method of making |
| EP0513796A3 (en) * | 1991-05-15 | 1993-12-01 | Pall Corp | Composite structure and method of making |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59010335D1 (de) | 1996-06-27 |
| JPH03174229A (ja) | 1991-07-29 |
| DE3928934C2 (de) | 1999-04-29 |
| EP0417525B1 (de) | 1996-05-22 |
| US5227070A (en) | 1993-07-13 |
| EP0417525A1 (de) | 1991-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8100 | Publication of patent without earlier publication of application | ||
| D1 | Grant (no unexamined application published) patent law 81 | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: SARTORIUS AG, 3400 GOETTINGEN, DE |
|
| 8363 | Opposition against the patent | ||
| 8366 | Restricted maintained after opposition proceedings | ||
| 8305 | Restricted maintenance of patent after opposition | ||
| D3 | Patent maintained restricted (no unexamined application published) | ||
| 8339 | Ceased/non-payment of the annual fee |