Patent ID: 6322773
Filing Date: 2001-11-27
Classification: A61K,A61Q

Abstract:
A single exit dual compartment squeeze tube with a static mixer, whose compartments are adapted to keep apart two formulations and whose two compartments respectively include:a first formulation comprising a hydrogen peroxide precursor compound selected from the group consisting of an alkali metal percarbonate, carbamide peroxide, calcium peroxide, and an alkali metal perborate, a thickener, a carrier and a calcium chelating agent wherein the first formulation is substantially free of an alkaline pH adjusting agent and is substantially free of water; anda second formulation comprising an alkaline pH-adjusting agent selected from the group consisting of alkali metal hydroxides, ammonium hydroxide, alkali metal carbonates, TRIS, and triethanolamine, a carrier and a thickener wherein the second formulation is substantially tree of the hydrogen peroxide precursor compound; whereby squeezing the tube forces material from each compartment through the static mixer to form a thickened, aqueous, substantially bicarbonate free, and substantially abrasive free hydrogen peroxide containing mixture before emerging from the single exit in the tube, wherein the mixture has a range of pH between approximately 6 and approximately 10.