GB1241385A - Process for the production of aromatic polybenzimidazoles - Google Patents
Process for the production of aromatic polybenzimidazolesInfo
- Publication number
- GB1241385A GB1241385A GB3460969A GB3460969A GB1241385A GB 1241385 A GB1241385 A GB 1241385A GB 3460969 A GB3460969 A GB 3460969A GB 3460969 A GB3460969 A GB 3460969A GB 1241385 A GB1241385 A GB 1241385A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- aromatic polybenzimidazoles
- reaction zone
- production
- polybenzimidazoles
- 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
- C08G73/18—Polybenzimidazoles
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)
Abstract
1,241,385. Aromatic polybenzimidazoles. CELANESE CORP. 9 July, 1969, No. 34609/69. Heading C3R. Aromatic polybenzimidazoles are obtained by heating monomers or monomer mixtures at temperatures above 200‹ C. under oxygen-free conditions at atmospheric or higher pressures while continuously passing nitrogen through the reaction zone at a rate of from 1% to 200% of the volume of the reaction zone per minute. The reaction may be carried out in one stage or in two stages, the product from the first stage being powdered before being heated in the second stage. In an example, poly-2,2<SP>1</SP>-(mphenylene) - 5,5<SP>1</SP> - bibenzimidazole is prepared from 3,3<SP>1</SP> - diaminobenzidine and diphenylisophthalate. Other starting materials and products are mentioned.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3460969A GB1241385A (en) | 1969-07-09 | 1969-07-09 | Process for the production of aromatic polybenzimidazoles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3460969A GB1241385A (en) | 1969-07-09 | 1969-07-09 | Process for the production of aromatic polybenzimidazoles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1241385A true GB1241385A (en) | 1971-08-04 |
Family
ID=10367793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3460969A Expired GB1241385A (en) | 1969-07-09 | 1969-07-09 | Process for the production of aromatic polybenzimidazoles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1241385A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0122735A2 (en) * | 1983-03-21 | 1984-10-24 | Celanese Corporation | High molecular weight polybenzimidazole production |
-
1969
- 1969-07-09 GB GB3460969A patent/GB1241385A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0122735A2 (en) * | 1983-03-21 | 1984-10-24 | Celanese Corporation | High molecular weight polybenzimidazole production |
EP0122735A3 (en) * | 1983-03-21 | 1985-04-10 | Celanese Corporation | High molecular weight polybenzimidazole production |
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