Coated substrates that include an undercoating
First Claim
1. A coated substrate comprising:
- a. a substrate having an index of refraction;
b. an undercoating comprising a graded layer comprising a mixture of at least two materials selected from titania and at least one of tin oxide, silica, and alumina deposited on at least a portion of the substrate, wherein the undercoating consists of inorganic materials; and
c. an outermost functional coating having an index of refraction deposited on at least a portion of the undercoating, wherein the functional coating is a single layer, photocatalytic coating comprising anatase crystalline titania, andwherein the undercoating is configured such that the coated substrate has a visible reflectance of no greater than 25% as measured from the coated side of the substrate.
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Accused Products
Abstract
A coated substrate is disclosed. The coated substrate includes a substrate; an undercoating having one or more materials selected from tin oxide, silica, titania, alumina, zirconia, zinc oxide and alloys and mixtures thereof nitrides of titanium, zirconium, hafnium, silicon, aluminum and mixtures thereof, and oxy-nitrides of titanium, zirconium, hafnium, silicon, aluminum and mixtures thereof overlaying at least a portion of the substrate; and a functional coating overlaying at least a portion of the undercoating. As a result of the undercoating, the coated substrate can exhibit improved properties such as improved aesthetic properties, increased durability, photocatalytic activity, mechanical durability, etc.
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Citations
7 Claims
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1. A coated substrate comprising:
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a. a substrate having an index of refraction; b. an undercoating comprising a graded layer comprising a mixture of at least two materials selected from titania and at least one of tin oxide, silica, and alumina deposited on at least a portion of the substrate, wherein the undercoating consists of inorganic materials; and c. an outermost functional coating having an index of refraction deposited on at least a portion of the undercoating, wherein the functional coating is a single layer, photocatalytic coating comprising anatase crystalline titania, and wherein the undercoating is configured such that the coated substrate has a visible reflectance of no greater than 25% as measured from the coated side of the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification