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.
Patent Number:
5,601,761
Date Of Issue:
02/10/1997
Inventors:
Dwight K. Hoffman; David V. Dellar; Herman W. Schlameus
Full Text: