FR2187516B1 - - Google Patents
Info
- Publication number
- FR2187516B1 FR2187516B1 FR727220135A FR7220135A FR2187516B1 FR 2187516 B1 FR2187516 B1 FR 2187516B1 FR 727220135 A FR727220135 A FR 727220135A FR 7220135 A FR7220135 A FR 7220135A FR 2187516 B1 FR2187516 B1 FR 2187516B1
- 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
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- 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
- B01D71/30—Polyalkenyl halides
- B01D71/301—Polyvinylchloride
-
- 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
- B01D71/30—Polyalkenyl halides
-
- 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
- B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7220135A FR2187516A1 (en) | 1972-06-05 | 1972-06-05 | Microporous membranes by leaching a polymer film - contains PVC, a sulphobetaine and a trialkyl or aryl phosphate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7220135A FR2187516A1 (en) | 1972-06-05 | 1972-06-05 | Microporous membranes by leaching a polymer film - contains PVC, a sulphobetaine and a trialkyl or aryl phosphate |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2187516A1 FR2187516A1 (en) | 1974-01-18 |
FR2187516B1 true FR2187516B1 (un) | 1974-07-26 |
Family
ID=9099686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7220135A Granted FR2187516A1 (en) | 1972-06-05 | 1972-06-05 | Microporous membranes by leaching a polymer film - contains PVC, a sulphobetaine and a trialkyl or aryl phosphate |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2187516A1 (un) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6045895A (en) | 1997-12-01 | 2000-04-04 | 3M Innovative Properties Company | Multilayer films having pressure sensitive adhesive layers |
US6171689B1 (en) * | 1999-01-15 | 2001-01-09 | 3M Innovative Properties Company | Flame retardant microporous materials |
US7985339B2 (en) * | 2008-08-25 | 2011-07-26 | General Electric Company | Polyarylether compositions bearing zwitterion functionalities |
-
1972
- 1972-06-05 FR FR7220135A patent/FR2187516A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2187516A1 (en) | 1974-01-18 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |