Patent ID: 6822012
Filing Date: 2004-11-23
Classification: C09D

Abstract:
A flat peelable coating composition, consisting essentially of a blend of:an effective amount of an aqueous polyurethane dispersion resin having an average molecular weight of between 50,000 to 5,000,000 containing at least 40 percent by weight solids contents; solvent selected from the group consisting of water, ethyl alcohol, methyl alcohol, isopropyl alcohol, and butyl alcohol, in an amount ranging from about 5 to 30 percent by weight of the total weight percent of the composition; a release agent in an amount of from between 0.1 and 10 percent of the total weight percent of the composition, said release agent being selected from the group consisting of soy lecithin, organosilicone fluids, nonylphenoxypoly-(ethyleneoxy)ethanol, oleic acid polyethylene glycol monostearate, petrolatum, sodium alkyl benzene, sulfonates, siloxanes, polyglycols, silicone surfactants, polyvinyl alcohol resins, paraffin and polymeric waxes, and synthetic waxes including low molecular weight polyethylene waxes; and wherein said aqueous polyurethane dispersion resin particles are dispersed in said solvent and applied to a single substrate in a single layer which upon curing provides a nonsoluble water resistant coating having a smooth surface.