Hydrophilic pressure sensitive biomedical adhesive composition
US4593053A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1984 |
| Grant date | Jun 3, 1986 |
| Priority date | — |
| Expiry date | Dec 7, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2301/302
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel, hydrophilic, skin-compatible, pressure sensitive, solid, adhesive gel hydrogel composition comprising 25 to 50 weight percent polyvinyl pyrolidone (PVP) preferably having a molecular weight in the range of about 100,000 to 600,000, 2 to 5 weight percent polyvinyl alcohol (PVA) preferably having a molecular weight in the range of about 150,000 to 300,000, about 5 to about 40 weight percent humectant, about 3 to about 50 weight percent water, about 0 to about 50 weight percent of an ionic species. In a preferred aspect, the composition of the invention is utilized in an iontophoresis device to provide a hydrophilic gel matrix from which a drug is iontophoretically delivered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.