FR2132169B1 - - Google Patents
Info
- Publication number
- FR2132169B1 FR2132169B1 FR7210991A FR7210991A FR2132169B1 FR 2132169 B1 FR2132169 B1 FR 2132169B1 FR 7210991 A FR7210991 A FR 7210991A FR 7210991 A FR7210991 A FR 7210991A FR 2132169 B1 FR2132169 B1 FR 2132169B1
- 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
- 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
- C08J9/24—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering
-
- 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
- C08G73/1032—Preparatory processes from tetracarboxylic acids or derivatives and diamines characterised by the process itself, e.g. steps, continuous characterised by the solvent(s) used
-
- 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
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA109141 | 1971-03-30 | ||
| GB3828971 | 1971-08-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2132169A1 FR2132169A1 (en) | 1972-11-17 |
| FR2132169B1 true FR2132169B1 (fa) | 1976-08-06 |
Family
ID=25666762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7210991A Granted FR2132169A1 (en) | 1971-03-30 | 1972-03-29 | Partly cured polyimide prepolymer - by heating aromatic polycarboxylic acid and aromatic amino cpd in dipolar aprotic solvent |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2215712A1 (fa) |
| FR (1) | FR2132169A1 (fa) |
| IT (1) | IT960661B (fa) |
| NL (1) | NL7204312A (fa) |
-
1972
- 1972-03-16 IT IT2196672A patent/IT960661B/it active
- 1972-03-29 FR FR7210991A patent/FR2132169A1/fr active Granted
- 1972-03-30 DE DE19722215712 patent/DE2215712A1/de active Pending
- 1972-03-30 NL NL7204312A patent/NL7204312A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2215712A1 (de) | 1972-10-26 |
| IT960661B (it) | 1973-11-30 |
| NL7204312A (fa) | 1972-10-03 |
| FR2132169A1 (en) | 1972-11-17 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |