Hybrid coating stack
First Claim
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1. A coating, comprising:
- a functional coating comprising at least one metal layer; and
a topcoat formed over at least a portion of the functional coating, the topcoat comprising;
a first topcoat layer having a thickness in the range of 0.5 QWOT to 1.5 QWOT with respect to a wavelength of 550 nm and a first refractive index; and
a second topcoat layer having a thickness in the range of 0.5 QWOT to 1.5 QWOT with respect to a wavelength of 550 nm and having a second refractive index different from the first refractive index.
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Abstract
A coating includes a functional coating, such as a solar control coating having at least one metal layer. A topcoat is formed over at least a portion of the functional coating. The topcoat includes a first topcoat layer having a thickness in the range of 0.5 QWOT to 1.5 QWOT with respect to a reference wavelength of 550 nm and a first refractive index, and a second topcoat layer having a thickness in the range of 0.5 QWOT to 1.5 QWOT with respect to a reference wavelength of 550 nm and a second refractive index different from the first refractive index.
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Citations
29 Claims
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1. A coating, comprising:
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a functional coating comprising at least one metal layer; and
a topcoat formed over at least a portion of the functional coating, the topcoat comprising;
a first topcoat layer having a thickness in the range of 0.5 QWOT to 1.5 QWOT with respect to a wavelength of 550 nm and a first refractive index; and
a second topcoat layer having a thickness in the range of 0.5 QWOT to 1.5 QWOT with respect to a wavelength of 550 nm and having a second refractive index different from the first refractive index. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 24)
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16. A coating, comprising:
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a functional coating comprising at least one infrared reflective metal layer; and
a topcoat formed over at least a portion of the functional coating, wherein the topcoat comprises;
a first topcoat layer having a first refractive index deposited over at least a portion of the functional coating; and
a second topcoat layer having a second refractive index deposited over at least a portion of the first dielectric layer, wherein the difference between the first refractive index and the second refractive index is in the range of 0.2 to 1. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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25. A coated article, comprising:
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a substrate; and
a coating deposited over at least a portion of the substrate, the coating comprising;
a functional coating comprising a first metal oxide layer, a second metal oxide layer, and an infrared reflective metal layer positioned between the first and second metal oxide layers; and
a topcoat comprising a first topcoat layer and a second topcoat layer, wherein the first topcoat layer has a thickness in the range of 0.5 QWOT to 1.5 QWOT with respect to a reference wavelength of 550 nm and a first refractive index of (i) less than or equal to 2, or (ii) greater than 2, and wherein the second topcoat layer has a thickness in the range of 0.5 QWOT to 1.5 QWOT with respect to a wavelength of 550 nm and a second refractive index of (i) greater than 2 when the first refractive index is less than or equal to 2, and (ii) less than or equal to 2 when the first refractive index is greater than 2. - View Dependent Claims (26, 27, 28, 29)
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Specification