Controlled-release delivery system
US5356634A · kind A · utility
6Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1992 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Nov 13, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2866
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided is a controlled-release system for delivery of bioactive materials such as medicaments, cosmetic ingredients and agrichemicals using cellulose acetate succinate or certain blends of cellulose acetate phthalate polymers as enteric coating materials. Also provided is a method for delivering active ingredients to animals utilizing the controlled-release system of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.