Gels formed by the interaction of polyvinylpyrrolidone with chitosan derivatives
US6379702B1 · kind B1 · utility
15Cited by
9References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2000 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Jul 5, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q3/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A dermatologically-compatible composition comprising a hydrophilic gel which comprises a blend of a chitosan and a hydrophilic poly(N-vinyl lactam) having a K value of less than 60.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.