Co-polymer stabilizers for hydrofluoroalkane dispersions
US8586007B2 · kind B2 · utility
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3References
13Claims
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Key dates
| Filing date | Oct 20, 2008 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Jan 29, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/34
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The use of biodegradable and biocompatible lactide-based nonionic amphiphiles to stabilize a model drug (salbutamol base) dispersion in hydrofluoroalkane (HFA) propellant is disclosed. The results have industrial applicability to the development of HFA-based dispersion pressurized metered-dose inhaler formulations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.