Method for production of water-soluble cationic polymer
US5334679A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1993 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Jul 22, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F20/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a method for production of a water-soluble cationic polymer comprising polymerizing a cationic vinyl monomer; either a cationic acrylate monomer alone or a mixture of said monomer and another monomer copolymerizable therewith, in dispersion medium in the presence of a surfactant by suspension polymerization method. The present invention offers an industrially advantageous method to obtain the water-soluble cationic polymer with a high degree of cationization and a high viscosity in water solution which can be used for flocculants, antistatic agents, retention aids for paper manufacturing and other purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.