Multiple micro-encapsulations of a high concentration oleophilic substance using heat to set the primary particle renders the composition suitable for the production of free-flowing powders or beadlets. Microencapsulation involves forming an emulsion out of the oleophilic substance and a polymer, and...http://www.google.es/patents/US6001554?utm_source=gb-gplus-sharePatente US6001554 - Encapsulation of oleophilic substances and compositions produced thereby
Encapsulation of oleophilic substances and compositions produced thereby