NL6919081A - - Google Patents
Info
- Publication number
- NL6919081A NL6919081A NL6919081A NL6919081A NL6919081A NL 6919081 A NL6919081 A NL 6919081A NL 6919081 A NL6919081 A NL 6919081A NL 6919081 A NL6919081 A NL 6919081A NL 6919081 A NL6919081 A NL 6919081A
- Authority
- NL
- Netherlands
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
- B01D71/56—Polyamides, e.g. polyester-amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
- C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
- C08J2201/0544—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being aqueous
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681817542 DE1817542A1 (de) | 1968-12-31 | 1968-12-31 | Verfahren zum Herstellen einer semipermeablen Membran |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6919081A true NL6919081A (xx) | 1970-07-02 |
Family
ID=5717636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6919081A NL6919081A (xx) | 1968-12-31 | 1969-12-19 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3703570A (xx) |
| JP (1) | JPS5027830B1 (xx) |
| BE (1) | BE743821A (xx) |
| CH (1) | CH512550A (xx) |
| DE (1) | DE1817542A1 (xx) |
| FR (1) | FR2027448A1 (xx) |
| GB (1) | GB1279719A (xx) |
| IL (1) | IL33621A (xx) |
| LU (1) | LU60122A1 (xx) |
| NL (1) | NL6919081A (xx) |
| SE (1) | SE354786B (xx) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3993625A (en) * | 1973-05-28 | 1976-11-23 | Toray Industries, Inc. | Permselective polymeric membranes of organic polyamide or polyhydrazide |
| US3876738A (en) * | 1973-07-18 | 1975-04-08 | Amf Inc | Process for producing microporous films and products |
| US4062921A (en) * | 1976-02-19 | 1977-12-13 | University Of Delaware | Solvents for and purification of chitin |
| US4203848A (en) * | 1977-05-25 | 1980-05-20 | Millipore Corporation | Processes of making a porous membrane material from polyvinylidene fluoride, and products |
| US4203847A (en) * | 1977-05-25 | 1980-05-20 | Millipore Corporation | Making porous membranes and the membrane products |
| US4157960A (en) * | 1977-11-30 | 1979-06-12 | Monsanto Company | Method for enhancing membrane separation |
| US4600692A (en) * | 1983-02-10 | 1986-07-15 | Purification Engineering, Inc. | Immobilized cells for preparing phenylalanine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3283042A (en) * | 1963-08-23 | 1966-11-01 | Univ California | Method of forming porous membranes |
-
1968
- 1968-12-31 DE DE19681817542 patent/DE1817542A1/de active Pending
-
1969
- 1969-12-19 NL NL6919081A patent/NL6919081A/xx unknown
- 1969-12-23 GB GB62612/69A patent/GB1279719A/en not_active Expired
- 1969-12-25 JP JP44104728A patent/JPS5027830B1/ja active Pending
- 1969-12-28 IL IL33621A patent/IL33621A/xx unknown
- 1969-12-29 US US888929A patent/US3703570A/en not_active Expired - Lifetime
- 1969-12-29 SE SE18004/69A patent/SE354786B/xx unknown
- 1969-12-29 BE BE743821D patent/BE743821A/xx unknown
- 1969-12-30 CH CH1949269A patent/CH512550A/de not_active IP Right Cessation
- 1969-12-30 LU LU60122D patent/LU60122A1/xx unknown
- 1969-12-30 FR FR6945370A patent/FR2027448A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CH512550A (de) | 1971-09-15 |
| SE354786B (xx) | 1973-03-26 |
| FR2027448A1 (xx) | 1970-09-25 |
| LU60122A1 (xx) | 1971-08-17 |
| IL33621A0 (en) | 1970-02-19 |
| GB1279719A (en) | 1972-06-28 |
| DE1817542A1 (de) | 1970-07-09 |
| US3703570A (en) | 1972-11-21 |
| JPS5027830B1 (xx) | 1975-09-10 |
| BE743821A (xx) | 1970-06-29 |
| IL33621A (en) | 1973-01-30 |