FR2050251B1 - - Google Patents
Info
- Publication number
- FR2050251B1 FR2050251B1 FR6923249A FR6923249A FR2050251B1 FR 2050251 B1 FR2050251 B1 FR 2050251B1 FR 6923249 A FR6923249 A FR 6923249A FR 6923249 A FR6923249 A FR 6923249A FR 2050251 B1 FR2050251 B1 FR 2050251B1
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1075—Partially aromatic polyimides
- C08G73/1078—Partially aromatic polyimides wholly aromatic in the diamino moiety
-
- 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
- B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
- B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain
- B01D71/64—Polyimides; Polyamide-imides; Polyester-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1042—Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1067—Wholly aromatic polyimides, i.e. having both tetracarboxylic and diamino moieties aromatically bound
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6923249A FR2050251A1 (en) | 1969-07-08 | 1969-07-08 | Sulphonated polyimides (i) used as ion ex- - changes and in electrodialysis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6923249A FR2050251A1 (en) | 1969-07-08 | 1969-07-08 | Sulphonated polyimides (i) used as ion ex- - changes and in electrodialysis |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2050251A1 FR2050251A1 (en) | 1971-04-02 |
FR2050251B1 true FR2050251B1 (en) | 1975-08-22 |
Family
ID=9037173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6923249A Granted FR2050251A1 (en) | 1969-07-08 | 1969-07-08 | Sulphonated polyimides (i) used as ion ex- - changes and in electrodialysis |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2050251A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE30351E (en) | 1972-07-20 | 1980-07-29 | E. I. Du Pont De Nemours And Company | Aromatic polyimide, polyester and polyamide separation membranes |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2536492A1 (en) * | 1975-08-16 | 1977-02-24 | Bayer Ag | SEMIPERMEABLE MEMBRANES MADE OF SULFONIZED POLYBENZENE-1,3-OXAZINDIONEN- (2,4) |
JPS5827963B2 (en) * | 1979-05-17 | 1983-06-13 | 日東電工株式会社 | Method for manufacturing selectively permeable membrane |
US4588805A (en) * | 1984-09-06 | 1986-05-13 | General Electric Company | Sulfonate-terminated polyimides and polyamic acids and method for their preparation |
US4574144A (en) * | 1984-12-17 | 1986-03-04 | General Electric Company | Sulfonated polyimides and polyamic acids and method for their preparation |
US4912197A (en) * | 1987-08-14 | 1990-03-27 | E. I. Du Pont De Nemours And Company | Highly soluble clear polyimides |
DE3872799T2 (en) * | 1987-08-31 | 1993-03-04 | Sharp Kk | USE OF A POLYIMIDATION EXCHANGE RESIN. |
US4880442A (en) * | 1987-12-22 | 1989-11-14 | E. I. Du Pont De Nemours And Company | Polyimide gas separation membranes |
US4935490A (en) * | 1988-04-13 | 1990-06-19 | E. I. Dupont De Nemours And Company | Highly soluble aromatic polyimides |
US4838900A (en) * | 1988-04-13 | 1989-06-13 | E. I. Du Pont De Nemours And Company | Polyimide gas separation membranes |
US4851505A (en) * | 1988-04-13 | 1989-07-25 | E. I. Du Pont De Nemours And Company | Highly soluble aromatic polyimides |
US5198316A (en) * | 1990-08-17 | 1993-03-30 | Ciba-Geigy Corporation | Copolyimides, their preparation and the use thereof |
EP0471650B1 (en) * | 1990-08-17 | 1995-05-03 | Ciba-Geigy Ag | Copolyimides, process for their preparation and their use |
EP0747418B1 (en) * | 1995-06-06 | 2002-07-03 | Ube Industries, Ltd. | Aromatic polyimide and gas separation |
US5618334A (en) * | 1995-06-30 | 1997-04-08 | Praxair Technology, Inc. | Sulfonated polyimide gas separation membranes |
US5725633A (en) * | 1995-06-30 | 1998-03-10 | Praxair Technology, Inc. | Sulfonated polyimide gas separation membranes |
CA2350587C (en) | 1998-11-13 | 2004-04-27 | Cellomics, Inc. | Methods and system for efficient collection and storage of experimental data |
FR2789912B1 (en) * | 1999-02-18 | 2002-12-20 | Commissariat Energie Atomique | PROCESS AND DEVICE FOR SEPARATING SEMI-PERMEABLE MEMBRANES FROM SULPHONATED POLYIMIDES |
US6768982B1 (en) | 2000-09-06 | 2004-07-27 | Cellomics, Inc. | Method and system for creating and using knowledge patterns |
-
1969
- 1969-07-08 FR FR6923249A patent/FR2050251A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE30351E (en) | 1972-07-20 | 1980-07-29 | E. I. Du Pont De Nemours And Company | Aromatic polyimide, polyester and polyamide separation membranes |
Also Published As
Publication number | Publication date |
---|---|
FR2050251A1 (en) | 1971-04-02 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AR | Application made for restoration | ||
ST | Notification of lapse |