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US 9,957,194 B2Granted
Coated tinted glass article and method of making same
AssigneePilkington Group Limited
InventorsMichel J. Soubeyrand, Srikanth Varanasi
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Abstract
The invention relates to a multi-layer pyrolytic coating stack deposited on a tinted glass substrate to form a coated glass article exhibiting a desired combination of emissivity, visible light transmittance and solar heat gain coefficient. A method for depositing the multi-layer coating stack on the tinted glass substrate is also part of the invention.
Claims15
A coated glass article comprising:
- a tinted glass substrate;
- a fluorine doped tin oxide coating deposited over the tinted glass substrate;
- and
- an overcoat consisting of silica deposited over and in contact with the fluorine doped tin oxide coating, the overcoat having a thickness between 30 nm and 50 nm;
- the coated glass article exhibiting a visible light transmittance >70% as measured by Illuminant A (10 degree observer), a solar heat gain coefficient ≤0.55 and a hemispherical emissivity <0.4.
2 more elements
A method of depositing a multi-layer coating stack on a substrate to form a coated glass article comprising:
- providing a moving, heated glass substrate supported on a bath of molten metal in a glass manufacturing process, at substantially atmospheric pressure, wherein the glass is a tinted glass;
- depositing a fluorine doped tin oxide coating comprising a tin compound and a dopant over the heated glass substrate;
- and
- depositing an overcoat consisting of silica over and in contact with the fluorine doped tin oxide coating, wherein the overcoat is deposited at a thickness between 30 nm and 50 nm, and wherein the coated tinted substrate exhibits a visible light transmittance >70% as measured by Illuminant A (10 degree observer), a solar heat gain coefficient ≤0.55 and a hemispherical emissivity <0.4.
1 more element
Dependencies are inferred from the claim text.