High performance polymer flocculating agents nonionic polymers
US6147176A · kind A · utility
13Cited by
10References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 8, 1997 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Apr 8, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Water-soluble, branched, high molecular weight, cationic and non-ionic polymeric flocculants capable of manifesting their full performance potential without shearing are produced by polymerizing ethylenically unsaturated cationic and non-ionic monomers and a branching agent in the presence of a chain-transfer agent. They are useful as flocculating agents for releasing water from dispersions of suspended solids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.