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US 9,655,359 B2Granted
Solid core microcapsular compositions and uses thereof
AssigneeBotanocap Ltd.
InventorsArie Markus, Charles Linder, Pnina Strongin
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Abstract
Provided are microcapsules containing a solid core including at least one essential oil mixed with a porous solid material, where this solid core is coated by at least one layer of a polyurea film and/or a polyurethane film or an amphipathic shell composed of a multivalent salt form of at least one alkanoic acid. Further provided are compositions including these microcapsules, and uses thereof in a variety of agricultural and environmental applications.
Claims25
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.
2 more elements
Dependencies are inferred from the claim text.