Controlled release polymeric gels
US7901695B2 · kind B2 · utility
2Cited by
8References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2004 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Aug 4, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/907
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A controlled continuous release composition, articles comprising the continuous release composition, methods of using the composition, and methods of preparing the composition are disclosed. The composition comprises an elastomeric matrix which is a reaction product of a carboxyl-terminated polymer with a polycarbodiimide and at least one active agent which is released from the matrix into the environment substantially continuously over an extended period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.