Dentifrice containing encapsulated flavoring
AssigneeColgate-Palmolive Company
InventorJohn Edward Grimm, III
Life of this patent
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Abstract
A dentifrice which releases "bursts" of flavor during use includes a minor proportion of an encapsulated flavoring material in a dentifrice base. The encapsulated flavoring is maintained separate from the dentifrice base during storage but is released into it by breaking of the encapsulating shells or coatings when the dentifrice is used. Other dentifrice constituents which are more stable during storage when kept separate from the dentifrice base, and various other adjuvants, including colorants, which may give special effects during use, are also encapsulatable with the flavor. Also disclosed is a method for the manufacture of such dentifrices.
Claims19
A dentifrice adapted to release a plural flavor burst comprising a distinctive flavor in thin walled microcapsules producing a distinctive initial flavor during early brushing of the teeth, and a different flavor in a thicker walled microcapsule than said thin walled microcapsule and producing a different flavor subsequent thereto, said flavor in said thin walled capsules being released when said dentifrice is extruded from a container by shearing contact with the container neck wall and by rupture on contact with the teeth, the flavor in said thicker walled microcapsules being released when latter microcapsules are ruptured during the course of brushing the teeth, said flavors encapsulated in a water insoluble, film forming synthetic organic polymeric plastic having an equivalent diameter of about one micron to 2 millimeters and having a wall thickness of about 0.1 micron to 1.0 millimeter, included in a concentration of about 0.1 to 10% into a dentifrice having a viscosity of under about 40,000 cps.
Dependencies are inferred from the claim text.