Nanoparticles based on a polyoxyethelene and polyactic acid block copolymer
US5683723A · kind A · utility
27Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/915
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention discloses nanoparticles offering an extended time before capture by the reticulo-endothelial system. Said particles are composed of an ethylene and/or propylene polyoxide polylactic copolymer optionally mixed with a polylactic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.