Patent ID: 7378451

Claim:
A hydrophilic surface coated with a surfactant composition comprising: a nonionic surfactant component from about 0.2% to 0.6% selected from the group consisting of alkoxylated alkyl diol; alkoxylated alkyacetylenic diol; alkoxylated glycerin monoester of an alkyl alcohol; alkoxylated glycerin monoester of an aralkyl alcohol; alkoxylated alkyl alcohol; polyalkoxylated aralkyl alcohol; silicone copolyol; polyethoxylated phenol; a fatty acid ester of a polyalkoxylated diol; a fatty acid ester of a polyalkoxylated triol, and polyalkoxylated perfluoroalkyl-containing surfactant; a stabilizer component from about 0.05% to 0.5%; and a solvent; wherein the surfactant composition is dried on the surface; wherein the surfactant composition free of the solvent when dried and coated on a substrate comprises the surfactant and stabilizer in a ratio of 0.2:1 to 12:1 wt/wt; and wherein the hydrophilic characteristics indicated by a Spreading Drop Test retain at least 85% of the original spreading drop diameter after 3 weeks of aging at 23° C. and 50% relative humidity.