Biodegradable microcapsules
AssigneesInternational Flavors & Fragrances Inc., Rensselaer Polytechnic Institute
InventorsRonald Gabbard, Julie Ann Wieland, Yabin Lei, Evan Beach, Crystal Kunzel, Richard Alan Gross, Xue Wang
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Abstract
This disclosure relates to biodegradable core-shell microcapsule compositions wherein the microcapsule shell contains a polymer formed with a biobased epoxide and a polyamine. This disclosure also relates to a method of preparing such biodegradable core-shell microcapsules. This disclosure also relates to consumer products containing such biodegradable core-shell microcapsules.
Claims17
A core-shell microcapsule composition comprising:
- (i) a microcapsule core comprising an active material;
- and
- (ii) a microcapsule shell encapsulating the microcapsule core;
- wherein the microcapsule shell comprises a polymer formed with a biobased epoxide and a polyamine, and
- wherein the biobased epoxide is a diglycidyl ether diphenolic ester.
A method for increasing the degree of biodegradability of a core-shell microcapsule, comprising incorporating a polymer into the shell of the core-shell microcapsule to increase the degree of biodegradability of the core-shell microcapsule,
- wherein the polymer is formed with a biobased epoxide and a polyamine,
- wherein the biobased epoxide is a diglycidyl ether diphenolic ester,
- wherein the polymer is formed by interfacial polymerization in an emulsion.
Dependencies are inferred from the claim text.