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AssigneeHoya Corporation
InventorsMineta SUZUKI, Takanobu SHIOKAWA, Kazuhiro YAMADA, Hiroyuki NAKAYAMA, Hideki YAMAGUCHI, Ayako MARUTA
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A method for forming an anti-reflection coating of alkali-treated silica aerogel on a substrate, comprising the steps of hydrolyzing and polymerizing alkoxysilane in the presence of a base catalyst to prepare an alkaline sol, adding an acid catalyst to the alkaline sol to carry out further hydrolysis and polymerization to prepare a first acidic sol, hydrolyzing and polymerizing alkoxysilane in the presence of an acid catalyst to prepare a second acidic sol, mixing the first and second acidic sols, applying the resultant mixed sol to the substrate, drying it, and treating the resultant silica aerogel coating with an alkali.
A method for forming an anti-reflection coating of alkali-treated silica aerogel on a substrate, comprising the steps of hydrolyzing and polymerizing alkoxysilane in a solvent in the presence of a base catalyst to prepare an alkaline sol, adding an acid catalyst to the alkaline sol to carry out further hydrolysis and polymerization to prepare a first acidic sol, hydrolyzing and polymerizing alkoxysilane in a solvent in the presence of an acid catalyst to prepare a second acidic sol, mixing said first and second acidic sols, applying the resultant mixed sol to said substrate, drying it, and treating the resultant silica aerogel coating with an alkali.
A method for forming an anti-reflection coating comprising a single-layer or multilayer dense coating and an alkali-treated silica aerogel coating on a substrate, comprising the steps of forming a single-layer or multilayer dense coating comprising at least one of an inorganic layer, a composite layer of fine inorganic particles and a binder and a resin layer on said substrate, hydrolyzing and polymerizing alkoxysilane in a solvent in the presence of a base catalyst to prepare an alkaline sol, adding an acid catalyst to the alkaline sol to carry out further hydrolysis and polymerization to prepare a first acidic sol, hydrolyzing and polymerizing alkoxysilane in a solvent in the presence of an acid catalyst to prepare a second acidic sol, mixing said first and second acidic sols, applying the resultant mixed sol to said single-layer or multilayer dense coating, drying it, and treating the resultant silica aerogel coating with an alkali.
Dependencies are inferred from the claim text.