Patent ID: 6586502
Filing Date: 2003-07-01
Classification: C04B,C08K,C09D,Y10S

Abstract:
An aqueous solution of a coatable composition for preparing a hard coating comprising:(a) water; (b) at least one dispersion of particles in a dispersion medium, said particles selected from the group consisting of inorganic particles and inorganic-organic composite particles, said particles having a size of from about 1 nanometer to about 100 nanometers; (c) at least one inorganic non-hydrogen Lewis Acid different from the particles of component (b); and (d) at least one epoxy group-containing silicon compound; said dispersion of particles being present in said composition such that said composition contains from about 1 to about 50 weight percent of said particles in the total weight of said composition; said non-hydrogen Lewis Acid being present in said composition such that said composition contains from about 0.1 to about 30 weight percent of said non-hydrogen Lewis Acid in the total weight of said composition; and said epoxy group-containing silicon compound being present in said composition such that said composition contains from about 1 to about 50 weight percent of said epoxy group-containing silicon in the total weight of said composition.