Patent ID: 8728579
Filing Date: 2014-05-20
Classification: B82Y,C08G,C08K,C08L,C09D,G02B

Abstract:
1. A method for coating a substrate with an inorganic-organic hybrid material comprising the steps of: providing at least one silicate sol comprising water and at least one hydrolyzable silane, wherein at least one of said silanes comprise at least one polymerizable organic group attached to said silane, wherein said silicate sol is free of organic solvents in excess of those formed upon hydrolysis of said silane, and wherein said water is in excess of stoichiometry for the complete hydrolysis of said silanes; adding to said silicate sol at least one metal oxide sol to form a combined sol, wherein said metal oxide sol comprises water, at least one hydrolyzable metal oxide precursor, and at least one hydrolyzable silane having at least one polymerizable organic group attached to said silane, wherein said water in said metal oxide sol is less than stoichiometric for the complete hydrolysis of said silane and metal oxide precursor in said metal oxide sol, and wherein said metal oxide sol is free of organic solvents in excess of those formed upon hydrolysis of said silane and said metal oxide precursor; coating a substrate with said combined sol; and gelling said combined sol upon said substrate, wherein said resulting coating is transparent to visible light with a transmittance of at least 95% at a thickness of at least 2 μm.