Product and process for making quaternized, water soluble vinylpyridine carboxylate polymers
US6271386A · kind A · utility
3Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Sep 22, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3776
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to stable, quaternized vinlypyridine carboxylate home-, co- and ter-polymers, useful as dye transfer inhibitors and polymers complexable with active agrochemical, pharmaceutical or cosmetic agents for controlled release thereof, and to a commercial process for the synthesis of said polymers in high yield and purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.