Quaternary modified acrylamide polymers
US4010131A · kind A · utility
25Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1975 |
| Grant date | Mar 1, 1977 |
| Priority date | — |
| Expiry date | Apr 18, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for the preparation of quaternary modified acrylamide polymers is disclosed. Applicable to both solutions of acrylamide polymer and to water-in-oil emulsions of finely divided acrylamide polymer, the method involves reacting the acrylamide with a secondary amine formaldehyde adduct followed by quaternization with an alkylating agent and then, stabilization. The composition of these polymers is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.