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US 12,698,459 B2Granted
Controlled release, biodegradable core-shell microcapsule compositions
AssigneeInternational Flavors & Fragrances Inc.
InventorsLewis Michael Popplewell, Ronald Gabbard, Yabin Lei, Takashi Sasaki, Julie Ann Wieland, Li Xu, Yi Zhang, Niels Akeroyd, Volkert De Villeneuve, Rob Hunter
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Abstract
A biodegradable core-shell microcapsule composition with controlled release of an active material is provided, wherein the shell of the microcapsule is composed of a biopolymer.
Claims10
A biodegradable core-shell microcapsule composition with controlled release of an active material,
- (i) the core of the biodegradable core-shell microcapsule comprising at least one active material, and
- (ii) the shell of the biodegradable core-shell microcapsule comprising at least one biopolymer cross-linked with two or more cross-linking agents,
- wherein said microcapsule retains the at least one active material for at least four weeks at elevated temperature in a consumer product base and releases the at least one active material in response to at least one triggering condition,
- wherein the at least one biopolymer is a whey protein, plant storage protein, cellulose, modified cellulose, hemicellulose, pectin, gum, modified gum, lignin, or a combination thereof, and
- wherein the two or more cross-linking agents is a polyisocyanate in combination with a second cross-linking agent selected from an aldehyde, a polyphenol, or a combination thereof.
2 more elements
Dependencies are inferred from the claim text.