Aqueous emulsion materials containing copolymerized vinyl amide monomers and hydrolysis products thereof
US5591799A · kind A · utility
18Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1995 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Mar 3, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention pertains to aqueous emulsions containing water insoluble, vinyl polymer particles containing polymerized N-vinyl formamide (NVF) units converted to water insoluble vinyl acetate polymers containing cationic, amine functional units. These latex dispersions are prepared by the emulsion polymerization of an ethylenically unsaturated monomer and N-vinyl formamide. Preferably, vinyl acetate, optionally with other ethylenically unsaturated monomers, are used to form the copolymer. The copolymer then is selectively hydrolyzed via acid hydrolysis of the N-vinyl formamide group to form water insoluble polymer particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.