Apparatus and process for strengthening low density compression dosage units and product therefrom
US5616344A · kind A · utility
10Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1994 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Jul 18, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B11/027
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is a process for forming a low density compression dosage unit to provide increased strength. The process of the present invention includes compacting under bi-level compaction pressure to provide a continuous-volume dosage unit which has a first volume defining an edge portion of the unit and a density which is greater than a density of a second volume defining a non-edge portion of the unit. The present invention also includes the product resulting from the process and apparatus used to make such units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.