BE726206A - - Google Patents
Info
- Publication number
- BE726206A BE726206A BE726206DA BE726206A BE 726206 A BE726206 A BE 726206A BE 726206D A BE726206D A BE 726206DA BE 726206 A BE726206 A BE 726206A
- Authority
- BE
- Belgium
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
- C08G73/1003—Preparatory processes
- C08G73/1007—Preparatory processes from tetracarboxylic acids or derivatives and diamines
- C08G73/1028—Preparatory processes from tetracarboxylic acids or derivatives and diamines characterised by the process itself, e.g. steps, continuous
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyamides (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB477868A GB1207577A (en) | 1968-01-30 | 1968-01-30 | Aqueous solutions of polyamide acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE726206A true BE726206A (OSRAM) | 1969-06-27 |
Family
ID=9783642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE726206D BE726206A (OSRAM) | 1968-01-30 | 1968-12-27 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE726206A (OSRAM) |
| FR (1) | FR96378E (OSRAM) |
| GB (1) | GB1207577A (OSRAM) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4480088A (en) * | 1983-10-20 | 1984-10-30 | United Technologies Corporation | Water soluble polyimide resin system |
-
0
- FR FR96378D patent/FR96378E/fr not_active Expired
-
1968
- 1968-01-30 GB GB477868A patent/GB1207577A/en not_active Expired
- 1968-12-27 BE BE726206D patent/BE726206A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR96378E (fr) | 1972-06-16 |
| GB1207577A (en) | 1970-10-07 |