Patent ID: 7976827
Filing Date: 2011-07-12
Classification: A61K,A61Q

Abstract:
1. A base coat nail enamel composition for forming a decorative film of a first color over a natural or synthetic nail, said composition comprising at least one film forming polymer soluble in an organic solvent, wherein said film forming polymer comprises nitrocellulose, at least one colored dye soluble in a first organic solvent within the base coat composition and soluble in a second organic solvent within a top coat composition, at least one first organic solvent capable of solubilizing said dye, and a plurality of colored particles present in the amount up to about 10% by weight of said composition which are generally insoluble in said first organic solvent, wherein at least a plurality of said colored particles are selected from the group consisting of titanium dioxide particles, aluminum particles and bismuth oxychloride particles; a suspending agent in a sufficient amount to produce a gel; wherein said dye is present in said base coat nail enamel composition in a sufficient amount whereby only upon application of at least one top coat nail enamel composition of a second color including at least one second organic solvent capable of solubilizing said dye in said base coat nail enamel composition results in a combination of said decorative film and said top coat nail enamel composition having a third color different from said first and second colors, wherein said color change is a difference in hue, brightness, intensity, saturation or a combination thereof between a first color of said base coat nail enamel composition and a second color of said decorative film after application of said top coat nail enamel composition to said base coat nail enamel composition.