Patent ID: 7857905

Claim:
A heat curable silicone hardcoat composition comprising: a) an aqueous/organic solvent silicone dispersion containing colloidal silica and a partial condensate of at least one organoalkoxysilane said dispersion possessing a T 3 :T 2 ratio from about 0.4 to about 1.3; and, added to said dispersion, b) at least one monofunctional silylating agent having the general formula: (R 1 ) 3 Si(X) wherein, each occurrence of R 1 is independently a monovalent hydrocarbyl group containing from 1 to about 6 carbon atoms, and optionally includes at least one heteroatom selected from the group consisting of oxygen and fluorine; and X is a halogen; an alkoxy (—OR 2 ), wherein R 2 is a monovalent hydrocarbyl group containing from 1 to about 6 carbon atoms, and optionally includes at least one heteroatom selected from the group consisting of oxygen and fluorine; a hydroxy (—OH); a carboxylate (—OC(═O)R 3 ), wherein R 3 is a hydrogen or a monovalent hydrocarbyl group containing 1 to 6 carbon atoms, and optionally includes at least one heteroatom selected from the group consisting of oxygen and fluorine: a sulfonate (—OSO 2 R 4 ), wherein R 4 is a monovalent hydrocarbyl containing 1 to 6 carbon atoms, and optionally includes at least one heteroatom selected from the group consisting of oxygen and fluorine; an acetamido (—NR 5 C(═O)R 6 ), wherein R 5 and R 6 are a hydrogen or a monovalent hydrocarbyl containing 1 to 6 carbon atoms, and optionally includes at least one heteroatom selected from the group consisting of oxygen and fluorine; an amino (—NR 7 2 ), wherein R 7 is a hydrogen or a monovalent hydrocarbon radical containing 1 to 6 carbon atoms, and optionally includes at least one heteroatom selected from the group consisting of oxygen and fluorine; or a silazane —NR 8 SiR 1 3 ), wherein each occurrence of R 1 is independently a monovalent hydrocarbyl group containing from 1 to about 6 carbon atoms, and optionally includes at least one heteroatom selected from the group consisting of oxygen and fluorine, and R 8 is a hydrogen or a monovalent hydrocarbyl group containing 1 to 6 carbon atoms, and optionally includes at least one heteroatom selected from the group consisting of oxygen and fluorine.