Cosmetic deodorant products containing encapsulated bicarbonate and fragrance ingredients
AssigneeChurch & Dwight Co., Inc.
InventorsRichard T. Murphy, Wolfgang R. Bergmann
Life of this patent
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Abstract
This invention provides deodorant and deodorant-antiperspirant cosmetic stick and roll-on products with an organic matrix having a dispersed phase of discrete particles of an encapsulated bicarbonate salt such as sodium bicarbonate, and discrete particles of an encapsulated fragrance compound such as musk ketone. The particle surfaces are coated with a polymer such as maltodextrin starch. When this type of cosmetic product is applied to underarm surfaces, the deodorizing activity is signaled by the release of a fragrance aroma.
Claims15
A cosmetic deodorant product comprising an organic matrix which contains between about 0.5-20 weight percent of an encapsulated powder composition homogeneously dispersed therein, wherein the encapsulated powder composition comprises (1) discrete crystallites of at least one ingredient selected from alkali metal and ammonium bicarbonates, and (2) between about 0.1-20 weight percent of discrete crystallites of a fragrance ingredient;
- wherein the crystallites are in the form of polymer surface-coated particles, and the crystallite ingredients have an average particle size in the range between about 5-80 microns;
- and wherein at least about 10 weight percent of the encapsulated particles have a core content of both bicarbonate and fragrance crystallites.
A cosmetic stick product consisting of a solid organic matrix comprising the following parts by weight of ingredients:
- volatile oil 10-55 liquid emollient 1-35 low melting point wax 12-30
- and the solid organic matrix contains between about 0.5-20 weight percent of an encapsulated powder composition homogeneously dispersed therein, wherein the encapsulated powder composition comprises (1) discrete crystallites of at least one ingredient selected from alkali metal and ammonium bicarbonates, and (2) between about 0.1-20 weight percent of discrete crystallites of a fragrance ingredient;
- and wherein the crystallites are in the form of polymer surface-coated particles, and the crystallite ingredients have an average particle size in the range between about 5-80 microns.
An encapsulated bicarbonate salt powder composition comprising (1) discrete crystallites of at least one ingredient selected from alkali metal and ammonium bicarbonates, and (2) between about 0.1-20 weight percent of discrete crystallites of a fragrance ingredient;
- wherein the crystallites are in the form of polymer surface-coated particles, and the crystallite ingredients have an average particle size in the range between about 5-80 microns:
- and wherein at least about 10 weight percent of the encapsulated particles have a core content of both bicarbonate and fragrance crystallites.
Dependencies are inferred from the claim text.