Patent ID: 6669930
Filing Date: 2003-12-30
Classification: A61K,A61Q

Abstract:
A stable opaque liquid tooth whitening gel composition suitable for application to teeth in the oral cavity comprising a peroxide containing compound dispersed in an orally acceptable vehicle containing a solvent, a film forming agent a mixture of (A) about 5% to about 50% of poly (ethylene oxide), molecular weight from 100,000 to 4,000,000, and (B) from about 0.25% to about 1.5% by weight of a carbomer which is a cross-linked acrylic acid copolymer and an opacifier selected opacifying organic polymer particles, having an average particle size of about 0.5 microns to about 100 microns, selected form the group consisting of polyethylene, polypropylene, ethylene/propylene copolymer, polytetrafluoro-ethylene and polyhexafluoropropene, said polymeric, pacifying particles being incorporated at a concentration of about 1% to about 30% by weight in said liquid whitening gel having a particle size of about 0.5 to 100 microns.