GB1354927A - Polyimide solutions - Google Patents
Polyimide solutionsInfo
- Publication number
- GB1354927A GB1354927A GB1354927DA GB1354927A GB 1354927 A GB1354927 A GB 1354927A GB 1354927D A GB1354927D A GB 1354927DA GB 1354927 A GB1354927 A GB 1354927A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sept
- copolyimide
- fabrics
- solution
- solutions
- Prior art date
- 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
- C08G73/1042—Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (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 |
---|---|---|---|
US7566770A | 1970-09-25 | 1970-09-25 | |
US12495871A | 1971-03-16 | 1971-03-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1354927A true GB1354927A (en) | 1974-06-05 |
Family
ID=26757140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1354927D Expired GB1354927A (en) | 1970-09-25 | 1971-09-23 | Polyimide solutions |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5239880B1 (nl) |
GB (1) | GB1354927A (nl) |
NL (1) | NL156161B (nl) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11992811B2 (en) | 2020-06-17 | 2024-05-28 | Evonik Operations Gmbh | Crosslinked hollow-fibre membranes and new process for manufacturing the same |
-
1971
- 1971-09-13 NL NL7112567A patent/NL156161B/nl not_active IP Right Cessation
- 1971-09-20 JP JP7332571A patent/JPS5239880B1/ja active Pending
- 1971-09-23 GB GB1354927D patent/GB1354927A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11992811B2 (en) | 2020-06-17 | 2024-05-28 | Evonik Operations Gmbh | Crosslinked hollow-fibre membranes and new process for manufacturing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS5239880B1 (nl) | 1977-10-07 |
DE2143080A1 (de) | 1972-03-30 |
NL156161B (nl) | 1978-03-15 |
DE2143080B2 (de) | 1976-09-09 |
NL7112567A (nl) | 1972-03-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PE20 | Patent expired after termination of 20 years |