Patent ID: 6440918
Filing Date: 2002-08-27
Classification: A61K,A61Q,C11D

Abstract:
A process for producing a composition comprising the steps of:(a) providing a particulate material wherein said material comprises detersive surfactants selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, zwitterionic surfactants, ampholytic surfactants, and mixtures thereof; (b) subjecting at least a portion of said particulate material to plasma glow zone in which a gas is ionized to form free radicals on said portion of said particulate material, wherein said plasma glow zone is contained in a plasma chamber operated at a pressure of from about 1 mTorr to about 300 Torr and a power of from about 0.1 Watts to about 500 Watts; (c) introducing a water-soluble, organic hydrophilic monomer into said chamber after said step (b) such that said organic hydrophilic monomer reacts with said free radicals on said portion of said particulate material so as to form a water-soluble coating on said portion of said particulate material.