Patent ID: 6395331
Filing Date: 2002-05-28
Classification: C03C,Y10T

Abstract:
A process for applying an anti-stain, hydrophobic optical coating to a transparent substrate, comprising the steps of:preparing a first solution consisting essentially of organosilane, alcohol, water, and an acidic catalyst, wherein the organosilane is described by the following formula: (RO)3âˆ’nâ€”Siâ€”{(Cp+qH2pF2q)â€”(CH3 or â€”CF3)}1+n wherein:n is 0-3, p+q&gE;2, and R is an alkyl group; allowing the first solution to react; mixing the first solution with a second solution that comprises water, to produce a treatment solution; applying the treatment solution to a surface of a transparent substrate; and drying the coated substrate.