Systems and processes for spray drying hydrophobic drugs with hydrophilic excipients
US6077543A · kind A · utility
173Cited by
13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1997 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Dec 29, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/926
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Methods for preparing dry powders having hydrophobic and hydrophilic components comprise combining solutions of the components and spray drying them simultaneously in a spray dryer. The hydrophilic and hydrophobic component are separately dissolved in separate solvents and directed simultaneously through a nozzle, usually a coaxial nozzle, into the spray dryer. The method provides dry powders having relatively uniform characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.