Agglomeration of finely divided powders
US6371171B1 · kind B1 · utility
4Cited by
18References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1994 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Oct 3, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of treating a finely divided powder is provided including a) forcing the powder through the apertures of a sieve to form agglomerates; and b) spheronizing the agglomerates. The method results in spheronized agglomerates having sufficient strength to withstand processing and packaging operations, but which are sufficiently soft to deagglomerate during delivery via a breath-actuated inhaler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.