Oral bandage and oral preparations
US4772470A · kind A · utility
137Cited by
1References
27Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 25, 1986 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Apr 25, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L15/225
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An oral bandage comprising a soft adhesive film comprising a mixture of a polycarboxylic acid and/or a polycarboxylic acid anhydride and a vinyl acetate polymer in a compatible state, and an oral preparation comprising such an oral bandage having incorporated therein a topical drug are disclosed. The oral bandage or preparation exhibits strong adhesion of long duration when applied to the oral mucosa or teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.