Plasma-irradiated solid preparation
US5306505A · kind A · utility
8Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1991 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Apr 22, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2853
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
By forming a multi-layer preparation comprising a tablet or granule containing a medicine as the core and the outermost layer comprising a plasma-decomposable polymer and a plasma-crosslinkable polymer and irradiating the outermost layer with a plasma about release-regulating preparations according to the plasma irradiation, the direct exposure of the medicine to the plasma can be avoided and the release pattern can be controlled more easily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.