Hydrophilic polymer granules for uniform release of active principle
US5139774A · kind A · utility
10Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1988 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Dec 13, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N25/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Granules prepared by absorbing on hydrophilic polymer granules an aqueous emulsion of at least one active principle and drying the resulting mixture to obtain granules which release the active principle in uniform manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.