Apparatus and process for strengthening low density compression dosage units and product therefrom
US5728400A · kind A · utility
11Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Nov 5, 2016 |
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.