초록 ▼

Coating liquid prepared by dissolving an acid and a silicon alkoxide into alcohol, containing at least one of either a silicon alkoxide or a hydrolyzate thereof (including a partial hydrolyzate) in an amount of 0.010 to 3% by weight (in terms of silica), an acid in terms of 0.0010 to 1.0 normality,

Coating liquid prepared by dissolving an acid and a silicon alkoxide into alcohol, containing at least one of either a silicon alkoxide or a hydrolyzate thereof (including a partial hydrolyzate) in an amount of 0.010 to 3% by weight (in terms of silica), an acid in terms of 0.0010 to 1.0 normality, and water in terms of 0 to 10% by weight is coated on a substrate to produce an article coated with a silica-based film. By this method for producing a silica-based film coated article, an excellent silica-based film coated article can be obtained without requiring baking and pretreatment. Furthermore, a functional film coated article excellent in durability can be produced in a short period of time and safely by using the abovementioned silica-based film as a primer film and applying thereon an organosilane having a hydrolyzable group and a functional group having a specific function or a hydrolyzate thereof.

대표청구항 ▼

1. A method for producing a silica-based film-coated article comprising an application on a substrate, coating liquid composed of an alcohol solution containing;(A) silicon alkoxides having at least two alkoxide groups or hydrolyzates thereof (including a partial hydrolyzate), 0.010 to 3% by weight

1. A method for producing a silica-based film-coated article comprising an application on a substrate, coating liquid composed of an alcohol solution containing;(A) silicon alkoxides having at least two alkoxide groups or hydrolyzates thereof (including a partial hydrolyzate), 0.010 to 3% by weight (in terms of silica), (B) an acid 0.0010 to 1.0 normality, (C) water 0 to 10% by weight, and (D) alcohol remaining.