GB771478A - Process for the manufacture of water-insoluble nitrogen-containing polymerisation products - Google Patents
Process for the manufacture of water-insoluble nitrogen-containing polymerisation productsInfo
- Publication number
- GB771478A GB771478A GB3085053A GB3085053A GB771478A GB 771478 A GB771478 A GB 771478A GB 3085053 A GB3085053 A GB 3085053A GB 3085053 A GB3085053 A GB 3085053A GB 771478 A GB771478 A GB 771478A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- anhydride
- manufacture
- insoluble nitrogen
- polymerisation products
- 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
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
Polyacrylamide and copolymers of acrylamide with acrylonitrile are rendered insoluble in water by heating under exclusion of air, in the presence of non-oxidizing vapours or gases, or in the presence of a carboxylic anhydride at a temperature of 139 DEG C. or more. The anhydride may be acetic anhydride or a mixed anhydride of acetic acid and caproic acid, and when heating in the presence of an anhydride the polymer may be swollen with a solvent such as water, formic acid or acetic acid. Heating under exclusion of air may be effected in an inert liquid such as ethyl hexanol or water. The product may be subsequently treated with formaldehyde.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW16610A DE1013871B (en) | 1952-11-08 | 1952-11-08 | Process for the production of nitrogen-containing, water-insoluble polymers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB771478A true GB771478A (en) | 1957-04-03 |
Family
ID=7595795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3085053A Expired GB771478A (en) | 1952-11-08 | 1953-11-06 | Process for the manufacture of water-insoluble nitrogen-containing polymerisation products |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1013871B (en) |
FR (1) | FR1083991A (en) |
GB (1) | GB771478A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1124244B (en) * | 1959-09-08 | 1962-02-22 | Bayer Ag | Process for the production of solid, water-soluble polyacrylamides with high molecular weights by precipitation polymerization |
-
1952
- 1952-11-08 DE DEW16610A patent/DE1013871B/en active Pending
-
1953
- 1953-09-24 FR FR1083991D patent/FR1083991A/en not_active Expired
- 1953-11-06 GB GB3085053A patent/GB771478A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1083991A (en) | 1955-01-14 |
DE1013871B (en) | 1957-08-14 |
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