In situ formation of polymeric material
US6391294B1 · kind B1 · utility
115Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Apr 12, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/36
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A pharmaceutically acceptable bio-adhesive coating, film or gel is formed in situ at a body surface by the reaction of (i) an anionic polymer or tripolyphosphate and (ii) a cationic polymer in the presence of water. The two components are supplied either as separate aqueous solutions or in a single non-aqueous formulation, which can be a liquid suspension tablet, capsule or powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.