Patent ID: 7087662

Claim:
A method of forming a surface coating for at least partially covering a dishware surface, said method comprising: a) contacting a substrate having a dishware surface with an aqueous rinse aid surface coating composition comprising: a. a plurality of nonphotoactive nanoparticles which are present in an amount less than about 3 mg/cm 2 of the area of dishware surface; b. a carrier, at least some of which is aqueous; c. optionally a dispersant polymer; d. optionally a surfactant; e. optionally a wetting agent; f optionally a pH-adjusting agent; and g. less than about 10% by weight of other ingredients; wherein said surface coating composition is non-thixotropic; and wherein at least one half of said nanoporticles comprise fluorohectorite; b) depositing said surface coating composition on said dishware surface to deposit said nanoparticles in an amount less than 3 μg/cm2 of the area of said dishware surface; and c) allowing said composition to dry so that a substantially clear, hydrophilic coating is formed on said dishware surface.