High performance anionic polymeric flocculating agents
US5919882A · kind A · utility
9Cited by
8References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 2, 1996 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Dec 2, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/56
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Unsheared, water-soluble, branched, high molecular weight, anionic, polymeric flocculants are produced by polymerizing ethylenically unsaturated anionic, and optionally 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.