Encapsulated active materials and method for preparing same
US5601761A · kind A · utility
14Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1994 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Sep 26, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J13/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An active material encapsulated in a coating material immiscible therewith is contacted with a solvent that dissolves residual active material on the surface of the coating material without dissolving the coating material. The resultant encapsulated material has improved stability as compared to the material not contacted with solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.