Method for producing cationic polyelectrolytes
US6410610B1 · kind B1 · utility
5Cited by
8References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Apr 26, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/60
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing water-soluble, cationic polyelectrolytes is described, wherein the polymerization of the water-soluble monomers is initiated at low temperatures using a combination of UV light, photoinitiator and a redox system, and is characterized in that the redox system is capable of initiating the polymerization only at temperatures higher than or equal to 20° C. The polymers have a high molecular weight and a low content of residual monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.