Continuous process for the preparation of a cationically modified acrylamide polymer
US4021394A · kind A · utility
17Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1975 |
| Grant date | May 3, 1977 |
| Priority date | — |
| Expiry date | Nov 12, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/922
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a dilute aqueous solution of a cationically modified polyacrylamide from a water-in-oil emulsion of a finely divided water soluble acrylamide polymer, a secondary amine containing 2-4 carbon atoms and formaldehyde is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.