Spandrel coating and method
First Claim
Patent Images
1. A method of making a spandrel panel, the method comprising:
- providing a glass substrate;
sputter-depositing a layer comprising titanium oxide on the glass substrate;
sputter-depositing a layer comprising silicon nitride on the glass substrate over at least the layer comprising titanium oxide;
thermally tempering the glass substrate with the layers comprising titanium oxide and silicon nitride thereon, so that the article has a Δ
E*g value of no more than 6.0 due to the thermal tempering;
after said thermal tempering, applying an opaque overcoat layer on the substrate over at least the layers comprising titanium oxide and silicon nitride,wherein the opaque overcoat layer directly contacts the layer comprising silicon nitride or an optional primer layer which may be provided on the layer comprising silicon nitride; and
wherein after said tempering the glass substrate having the layer comprising titanium oxide and the layer comprising silicon nitride thereon, before the opaque overcoat layer is applied, has a visible transmission of from about 65-90%.
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Abstract
A coated article for use in spandrel applications and/or the like is provided. In certain example embodiments, a coating is provided to have a coating design which permits the coating to realize more predictable and/or consistent optical characteristics such as glass side reflectance, color and/or the like. Certain example embodiments of this invention relate to a method of making a coated article for spandrel applications or the like. In certain embodiments, a powder inclusive lacquer coating is used as an overcoat.
17 Citations
13 Claims
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1. A method of making a spandrel panel, the method comprising:
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providing a glass substrate; sputter-depositing a layer comprising titanium oxide on the glass substrate; sputter-depositing a layer comprising silicon nitride on the glass substrate over at least the layer comprising titanium oxide; thermally tempering the glass substrate with the layers comprising titanium oxide and silicon nitride thereon, so that the article has a Δ
E*g value of no more than 6.0 due to the thermal tempering;after said thermal tempering, applying an opaque overcoat layer on the substrate over at least the layers comprising titanium oxide and silicon nitride, wherein the opaque overcoat layer directly contacts the layer comprising silicon nitride or an optional primer layer which may be provided on the layer comprising silicon nitride; and
wherein after said tempering the glass substrate having the layer comprising titanium oxide and the layer comprising silicon nitride thereon, before the opaque overcoat layer is applied, has a visible transmission of from about 65-90%. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of making a spandrel panel, the method comprising:
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providing a glass substrate; sputter-depositing a first dielectric layer on the glass substrate; sputter-depositing a second dielectric layer on the glass substrate over at least the first dielectric layer; thermally tempering the article including the glass substrate with the first and second dielectric layers thereon to produce a tempered article, wherein after said tempering the tempered coated article with the first and second dielectric layers thereon has a visible transmission of from about 65-90%; applying a primer layer on the tempered article, and then applying a powder paint over at least the primer layer. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification