High performance dewatering aids
US5643461A · kind A · utility
11Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1995 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | May 24, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/922
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Water-soluble, branched, high molecular weight, cationic polymers are used in combination with low molecular weight, cationic polymers to provide the highly improved dewatering of suspended solids. Water-in-oil emulsions containing these cationic polymers in the aqueous phase are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.