Patent ID: 8945519
Filing Date: 2015-02-03
Classification: A61K,A61Q

Abstract:
1. A method for whitening teeth comprising applying a composition to the teeth for a period of time and under conditions effective to whiten the teeth, the composition comprising, a whitening agent comprising a peroxide in an amount of from about 1% to about 35% by weight of the composition, a hydrophilic phase comprising water in an amount of from 1% to about 80% by weight of the composition, a hydrophobic phase comprising an oil in an amount of from 1% to less than 50% by of the composition, said oil being selected from the group consisting of olive oil, coconut oil, linseed oil, mineral oil, clove oil, isopropyl myristate and isopropyl palmitate, a surfactant selected from the group consisting of anionic, nonionic, amphoteric and zwitterionic surfactants; and a water-soluble co-solvent having a Hildebrand solubility parameter above 12 (cal/cm wherein the composition is in a form selected from the group consisting of a liquid crystal and a microemulsion, wherein the composition is free of a thickener selected from the group consisting of a synthetic polymer, a natural gum and a synthetic gum, and wherein and the hydrophilic phase is in predominant weight proportion relative to the hydrophobic phase in the composition.