Systems and processes for spray drying hydrophobic and hydrophilic components
US8802149B2 · kind B2 · utility
4Cited by
236References
31Claims
0Family size
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Key dates
| Filing date | May 20, 2009 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Dec 12, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/715
- 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.