Patent ID: 9216145
Filing Date: 2015-12-22
Classification: A61K,A61Q

Abstract:
1. A semi-permanent, wax-free concealer consisting essentially of: a. from about 10% to about 80% by weight of a non-aqueous carrier which includes at least one of a silicone gum and polydimethylsiloxane; b. from about 15% to about 35% by weight of a film-forming tackifier comprising pentaerythrityl hydrogenated rosinate at between 0.1% and 99.9% by weight based on the weight of the tackifier and tall oil glyceride at between 99.9% to 0.1% by weight based on the weight of the tackifier; and c. from about 0.1% to about 20%, by weight, of iron oxide colorant particles having a particle size less than 30 microns; d. from 1% to 25% by weight of disteardimonium hectorite particles having a particle size less than 10 micron as a thickener; wherein the film-forming tackifier and the particles are dispersed in the carrier to form a single-phase anhydrous dispersion, wherein the weight ratio of tackifier to particles in the anhydrous dispersion is from about 2:3 to about 100:1; and the volume concentration of solid particles present in the composition is less than the critical pigment volume concentration; wherein said concealer has a Delta L value, of less than 20.0 according to the Rub Test.