Patent ID: 9655359
Date: 2017-05-23
CPC Classifications: A01N,A23L,A23P,A23V,A61K,C11D,Y02A

Claim:
1. A microcapsule comprising: a solid core having at least one essential oil in a mixture with a porous solid material; at least one film layer uniformly encapsulating the solid core, the at least one encapsulating film layer including a) a polyurea film and/or a polyurethane film, or b) an amphipathic shell composed of a multivalent salt form of at least one alkanoic acid; and at least one fatty layer formed around the encapsulating film layer, wherein the at least one fatty layer and the at least one film layer control the release rate of the at least one essential oil from the solid core, such that the thickness of the at least one fatty layer at least partially controls the release rate of said essential oil, and such that the at least one fatty layer and the at least one film layer have a combined effect on the release rate of said essential oil.