Patent ID: 6235295
Filing Date: 2001-05-22
Classification: A61K,A61Q

Abstract:
A process for the preparation of a plaster-based solid cosmetic composition, said process comprising:preparing a pulverulent mixture comprising at least calcium sulphate hemihydrate in powder form,adding to the pulverulent mixture a non-aqueous liquid preserving system having a viscosity of less than or equal to 4.5 pascal seconds, hereinafter abbreviated Pa.s, at 25.degree. C. and comprising at least one preserving agent having a water-solubility of less than or equal to 0.5% at 25.degree. C.,adding an aqueous phase to the pulverant mixture,blending together the pulverulent mixture and the aqueous phase to obtain a castable mixture,pouring the castable mixture into a mold, and,curing the castable mixture by hydration of the calcium sulphate hemihydrate into calcium sulphate dihydrate.