Process for preparing biodegradable submicroscopic particles containing a biologically active substance and their use
US4489055A · kind A · utility
75Cited by
9References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1982 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Feb 17, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2989
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Biodegradable particles, with a diameter smaller than 500 nanometers, formed by the micellar polymerization of an alkyl-cyano-acrylate where the term "alkyl" means a lower alkyl radical having 1 to 4 carbon atoms and containing a biologically active substance. Also provided are processes for making pharmaceutical compositions containing the biodegradable particles and using the particles in pharmaceutical and diagnostic applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.