Freeze-dried polymer dispersions and the use thereof in preparing sustained-release pharmaceutical compositions
US5326572A · kind A · utility
11Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1990 |
| Grant date | Jul 5, 1994 |
| Priority date | — |
| Expiry date | Mar 5, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1652
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Freeze-dried polymer latices, which can be reconstituted in water to give aqueous polymer dispersions having high polymer solids content, are described. The reconstituted polymer dispersions are useful in preparing sustained-release drug formulations, particularly of water-soluble drugs, by the wet granulation method without over wetting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.