Dispersal of polyacrylamides
US6642351B1 · kind B1 · utility
7Cited by
26References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2000 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Jun 26, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/26
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Polymer compositions comprised of small, dry polyacrylamide particles may be dispersed into water at industrially useful rates to form aqueous compositions, by separating the particles from each other and bringing them into contact with a moving stream of water in the manner described herein. The resulting aqueous compositions may be used as a treating solution in diverse applications such as flocculants in water treating, papermaking, mining, oil field, and biotechnological separations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.