FR2409077B1 - - Google Patents
Info
- Publication number
- FR2409077B1 FR2409077B1 FR7832489A FR7832489A FR2409077B1 FR 2409077 B1 FR2409077 B1 FR 2409077B1 FR 7832489 A FR7832489 A FR 7832489A FR 7832489 A FR7832489 A FR 7832489A FR 2409077 B1 FR2409077 B1 FR 2409077B1
- Authority
- FR
- France
- 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
Classifications
-
- 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
- B01D71/08—Polysaccharides
- B01D71/12—Cellulose derivatives
- B01D71/22—Cellulose ethers
-
- 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
- B01D71/08—Polysaccharides
- B01D71/12—Cellulose derivatives
- B01D71/14—Esters of organic acids
- B01D71/16—Cellulose acetate
-
- 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
- B01D71/08—Polysaccharides
- B01D71/12—Cellulose derivatives
- B01D71/20—Esters of inorganic acids, e.g. cellulose nitrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85277677A | 1977-11-18 | 1977-11-18 | |
US05/953,377 US4220477A (en) | 1978-10-23 | 1978-10-23 | Flexible microporous cellulosic membranes and methods of formation and use thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2409077A1 FR2409077A1 (fr) | 1979-06-15 |
FR2409077B1 true FR2409077B1 (fr) | 1984-11-16 |
Family
ID=27127086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7832489A Granted FR2409077A1 (fr) | 1977-11-18 | 1978-11-17 | Membranes cellulosiques flexibles microporeuses, leur procede de production et leurs applications |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5490082A (fr) |
BR (1) | BR7807556A (fr) |
CA (1) | CA1096556A (fr) |
DE (1) | DE2849863C3 (fr) |
FR (1) | FR2409077A1 (fr) |
GB (1) | GB2009031B (fr) |
IE (1) | IE47585B1 (fr) |
IT (1) | IT7851950A0 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19613484A1 (de) * | 1996-04-04 | 1997-10-09 | Buna Sow Leuna Olefinverb Gmbh | Formmassen zur Herstellung von Gastrennmembranen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE329117C (de) * | 1916-08-21 | 1920-11-15 | Richard Zsigmondy Dr | Membranfilter und Verfahren zu deren Herstellung |
DE1017596B (de) * | 1956-07-04 | 1957-10-17 | Membranfiltergesellschaft Sart | Verfahren und Vorrichtung zur kontinuierlichen Herstellung von Membranfiltern |
JPS5538366B2 (fr) * | 1974-03-13 | 1980-10-03 | ||
GB1430323A (en) * | 1974-03-20 | 1976-03-31 | Chem Systems | Process for the preparation of asymmetric reverse osmosis membranes |
-
1978
- 1978-11-09 GB GB7843859A patent/GB2009031B/en not_active Expired
- 1978-11-16 CA CA316,347A patent/CA1096556A/fr not_active Expired
- 1978-11-17 JP JP14122278A patent/JPS5490082A/ja active Granted
- 1978-11-17 IT IT7851950A patent/IT7851950A0/it unknown
- 1978-11-17 BR BR7807556A patent/BR7807556A/pt unknown
- 1978-11-17 IE IE2266/78A patent/IE47585B1/en unknown
- 1978-11-17 FR FR7832489A patent/FR2409077A1/fr active Granted
- 1978-11-17 DE DE2849863A patent/DE2849863C3/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2849863C3 (de) | 1982-06-24 |
IE47585B1 (en) | 1984-05-02 |
DE2849863B2 (de) | 1981-03-12 |
GB2009031A (en) | 1979-06-13 |
CA1096556A (fr) | 1981-03-03 |
DE2849863A1 (de) | 1979-05-31 |
BR7807556A (pt) | 1979-07-24 |
JPS5490082A (en) | 1979-07-17 |
JPS5634132B2 (fr) | 1981-08-08 |
IT7851950A0 (it) | 1978-11-17 |
GB2009031B (en) | 1982-03-10 |
FR2409077A1 (fr) | 1979-06-15 |
IE782266L (en) | 1979-05-18 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |