FR2298570A1 - Membrane poreuse et procede de production de cette membrane - Google Patents
Membrane poreuse et procede de production de cette membraneInfo
- Publication number
- FR2298570A1 FR2298570A1 FR7601674A FR7601674A FR2298570A1 FR 2298570 A1 FR2298570 A1 FR 2298570A1 FR 7601674 A FR7601674 A FR 7601674A FR 7601674 A FR7601674 A FR 7601674A FR 2298570 A1 FR2298570 A1 FR 2298570A1
- Authority
- FR
- France
- Prior art keywords
- membrane
- producing
- porous
- porous 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title 2
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
- B01D71/14—Esters of organic acids
- B01D71/16—Cellulose acetate
-
- 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
- B01D67/0093—Chemical modification
- B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH82775A CH614127A5 (en) | 1975-01-23 | 1975-01-23 | Porous membrane and method for production thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2298570A1 true FR2298570A1 (fr) | 1976-08-20 |
FR2298570B1 FR2298570B1 (de) | 1979-02-02 |
Family
ID=4196116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7601674A Granted FR2298570A1 (fr) | 1975-01-23 | 1976-01-22 | Membrane poreuse et procede de production de cette membrane |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5723698B2 (de) |
CH (1) | CH614127A5 (de) |
DE (1) | DE2505254A1 (de) |
FR (1) | FR2298570A1 (de) |
GB (1) | GB1504261A (de) |
IT (1) | IT1053401B (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0026399A1 (de) * | 1979-09-19 | 1981-04-08 | Aligena Ag | Poröse, semipermeable, mit ionisierbaren Gruppen modifizierte Celluloseacetatmembranen, Verfahren zu ihrer Herstellung und ihre Verwendung |
FR2513649A1 (fr) * | 1981-09-29 | 1983-04-01 | Ciba Geigy Ag | Preparations colorantes stables au stockage, leur procede de fabrication et leur utilisation |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0041239A3 (de) * | 1980-06-04 | 1982-05-12 | Ciba-Geigy Ag | Stabile konzentrierte flüssige Zubereitungen von metallfreien Farbstoffen, Verfahren zu ihrer Herstellung und ihre Verwendung |
IL63638A0 (en) * | 1980-09-16 | 1981-11-30 | Aligena Ag | Semipermeable composite membranes,their manufacture and their use |
ZA816730B (en) * | 1981-03-06 | 1982-10-27 | Ciba Geigy | Process for the preparation of concentrated aqueous compositions of anionic dyes |
DE3174666D1 (en) * | 1981-03-06 | 1986-06-26 | Ciba Geigy Ag | Process for producing concentrated aqueous dyestuff preparations of anionic paper or wool dyes |
CH652313A5 (de) * | 1981-08-25 | 1985-11-15 | Ciba Geigy Ag | Verfahren zur herstellung konzentrierter waesseriger zubereitungen von synthetischen anionischen dispergatoren. |
CH647021A5 (de) * | 1981-09-22 | 1984-12-28 | Ciba Geigy Ag | Verfahren zur herstellung lagerstabiler aufhellerformulierungen. |
CH654424A5 (de) * | 1983-03-25 | 1986-02-14 | Ciba Geigy Ag | Verfahren zur verhinderung des gelierens von konzentrierten waessrigen photoaktivatorloesungen. |
JPS59182863A (ja) * | 1983-04-01 | 1984-10-17 | Canon Inc | 染料精製装置 |
JPS59182862A (ja) * | 1983-04-01 | 1984-10-17 | Canon Inc | 染料精製装置 |
JPS59182861A (ja) * | 1983-04-01 | 1984-10-17 | Canon Inc | 染料精製装置 |
AU778022B2 (en) * | 1999-07-30 | 2004-11-11 | Genentech Inc. | Charged filtration membranes and uses therefor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2229439A1 (de) * | 1973-05-16 | 1974-12-13 | Sumitomo Chemical Co |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2419930A1 (de) * | 1973-04-30 | 1974-11-07 | Dorr Oliver Inc | Ultrafiltrationsmembran und verfahren zu deren herstellung |
DE2437594A1 (de) * | 1974-08-05 | 1976-02-26 | Riedel De Haen Ag | Ionenaustauscher auf cellulosebasis und verfahren zu seiner herstellung |
-
1975
- 1975-01-23 CH CH82775A patent/CH614127A5/xx not_active IP Right Cessation
- 1975-02-07 DE DE19752505254 patent/DE2505254A1/de active Granted
-
1976
- 1976-01-21 IT IT47727/76A patent/IT1053401B/it active
- 1976-01-22 FR FR7601674A patent/FR2298570A1/fr active Granted
- 1976-01-23 JP JP707176A patent/JPS5723698B2/ja not_active Expired
- 1976-01-23 GB GB2729/76A patent/GB1504261A/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2229439A1 (de) * | 1973-05-16 | 1974-12-13 | Sumitomo Chemical Co |
Non-Patent Citations (1)
Title |
---|
ARTICLE:"WATER TRANSPORT THROUGH PLASTICIZEDMEMBRANES" BY VOFSI, DAVID, KEDEM, ORA DANS CHEMICAL ABSTRACTS, VOL. 75, NO. 6, 9 AOUT 1971, NO. 40 184T PAGE 267 ) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0026399A1 (de) * | 1979-09-19 | 1981-04-08 | Aligena Ag | Poröse, semipermeable, mit ionisierbaren Gruppen modifizierte Celluloseacetatmembranen, Verfahren zu ihrer Herstellung und ihre Verwendung |
FR2513649A1 (fr) * | 1981-09-29 | 1983-04-01 | Ciba Geigy Ag | Preparations colorantes stables au stockage, leur procede de fabrication et leur utilisation |
Also Published As
Publication number | Publication date |
---|---|
JPS5199695A (de) | 1976-09-02 |
IT1053401B (it) | 1981-08-31 |
DE2505254A1 (de) | 1976-07-29 |
CH614127A5 (en) | 1979-11-15 |
JPS5723698B2 (de) | 1982-05-20 |
GB1504261A (en) | 1978-03-15 |
FR2298570B1 (de) | 1979-02-02 |
DE2505254C2 (de) | 1987-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |