CH577837A5 - - Google Patents
Info
- Publication number
- CH577837A5 CH577837A5 CH233672A CH233672A CH577837A5 CH 577837 A5 CH577837 A5 CH 577837A5 CH 233672 A CH233672 A CH 233672A CH 233672 A CH233672 A CH 233672A CH 577837 A5 CH577837 A5 CH 577837A5
- Authority
- CH
- Switzerland
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
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/401—Polymers based on the polymerisation of acrylic acid, e.g. polyacrylate
-
- 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
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/00091—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching by evaporation
-
- 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
- B01D2323/00—Details relating to membrane preparation
- B01D2323/02—Hydrophilization
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/12—Specific ratios of components used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/04—Characteristic thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/36—Hydrophilic membranes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB489771A GB1396091A (en) | 1971-02-18 | 1971-02-18 | Semi-permeable membranes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH577837A5 true CH577837A5 (cg-RX-API-DMAC7.html) | 1976-07-30 |
Family
ID=9785936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH233672A CH577837A5 (cg-RX-API-DMAC7.html) | 1971-02-18 | 1972-02-18 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH577837A5 (cg-RX-API-DMAC7.html) |
| DE (1) | DE2207656A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2125586B1 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1396091A (cg-RX-API-DMAC7.html) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1047997B (it) * | 1975-09-11 | 1980-10-20 | Fiat Spa | Membrana per osmosi inversa e procedimento per la sua fabbricazione |
| JPS5938805B2 (ja) * | 1979-04-06 | 1984-09-19 | ダイセル化学工業株式会社 | 選択透過性を有する半透膜の製法 |
| GB2130069A (en) * | 1982-08-06 | 1984-05-31 | Foremost Mckesson | Whey treatment process and product |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1060357B (de) * | 1958-10-15 | 1959-07-02 | Dr Alexander Goetz | Verfahren und Vorrichtung zur Herstellung von mikroporoesen Filterfilmen |
| CH407949A (de) * | 1960-03-16 | 1966-02-28 | Membranfiltergesellschaft Gmbh | Verfahren und Vorrichtung zur Herstellung von Membranfiltern |
| US3344214A (en) * | 1964-03-25 | 1967-09-26 | Univ California | Methods of preparing a semipermeable membrane |
| GB1238180A (cg-RX-API-DMAC7.html) * | 1967-09-21 | 1971-07-07 | ||
| US3666508A (en) * | 1968-05-22 | 1972-05-30 | Univ California | High flux semipermeable cellulosic derivative membranes with dry handling capabilities and their method of preparation |
| NL171534C (nl) * | 1970-06-16 | 1983-04-18 | Monsanto Co | Werkwijze voor het afscheiden van water uit mengsels die water en formaldehyd bevatten. |
| NL170374C (nl) * | 1970-06-16 | 1982-11-01 | Monsanto Co | Werkwijze voor het afscheiden van water uit mengsels van water en formaldehyd. |
| FR2105502A5 (cg-RX-API-DMAC7.html) * | 1970-09-09 | 1972-04-28 | Rhone Poulenc Sa |
-
1971
- 1971-02-18 GB GB489771A patent/GB1396091A/en not_active Expired
-
1972
- 1972-02-18 FR FR7205500A patent/FR2125586B1/fr not_active Expired
- 1972-02-18 DE DE19722207656 patent/DE2207656A1/de active Pending
- 1972-02-18 CH CH233672A patent/CH577837A5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2125586B1 (cg-RX-API-DMAC7.html) | 1977-09-02 |
| GB1396091A (en) | 1975-05-29 |
| FR2125586A1 (cg-RX-API-DMAC7.html) | 1972-09-29 |
| DE2207656A1 (de) | 1972-09-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |