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AssigneeKimberly-Clark Worldwide, Inc.
InventorsWael R. Joseph, David Charles Musil, Michael Allen Daley, John David Amundson, Brian Patrick Argo, Duane G. Krzysik, David J. Drath, John Michael Finney, Hal Arthur LaFleur, III, William A. Hendrickson
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Microencapsulated delivery vehicles comprising an active agent are disclosed. In one embodiment, the microencapsulated delivery vehicles are heat delivery vehicles capable of generating heat upon activation. The microencapsulated heat delivery vehicles may be introduced into wet wipes such that, upon activation, the wet wipe solution is warmed resulting in a warm sensation on a user's skin. Any number of other active ingredients, such as cooling agents and biocides, can also be incorporated into a microencapsulated delivery vehicle.
A stabilized substantially fluid-impervious microencapsulated heat delivery vehicle comprising a core composition, an encapsulation layer surrounding the core composition, a moisture protective layer surrounding the encapsulation layer, and a fugitive layer surrounding the moisture protective layer, wherein the core composition comprises mineral oil, magnesium chloride, and a surfactant, the magnesium chloride being surrounded by a hydrophobic wax material, wherein the encapsulation layer comprises crosslinked sodium alginate, wherein the moisture protection layer comprises vinyl toluene acrylate, wherein the fugitive layer comprises starch, wherein the encapsulation layer has a thickness of from about 1 micrometers to about 20 micrometers, and wherein the microencapsulated heat delivery vehicle has a diameter of from about 5 micrometers to about 5000 micrometers.
Dependencies are inferred from the claim text.