Hydrophilic dispersion polymers for treating wastewater
US5938937A · kind A · utility
28Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1995 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Aug 16, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/928
- 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 soluble 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.