Biodegradable polymer compositions
US4999417A · kind A · utility
89Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1989 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Mar 30, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G67/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Biodegradable polyanhydrides or polyester compositions based on amino acids. The compositions may be used as carriers for drugs or the like or as the drug source itself. The polymers are prepared from amino acids which are modified to include an additional carboxylic acid group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.