Process for preparing hydrophilic dispersion polymers for treating wastewater
US6025426A · kind A · utility
16Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1995 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Dec 18, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F11/147
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Hydrophilic cationic copolymers of acrylamide are prepared as dispersions in a salt media. These polymers have high molecular weights and are readily activated by diluting in water. These polymers are useful flocculants for such applications as sludge dewatering, raw water clarification aids, emulsion breakers and waste water clarification aids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.