Colloidal silica/polyelectrolyte blends for natural water clarification
US5620629A · kind A · utility
13Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Nov 26, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/68
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a composition of matter of a silica sol/water soluble cationic polymer mixture. The colloidal silica may also be conditioned by passing over a cationic exchange resin prior to addition of cationic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.