Coated glass article having a pyrolytic solar control coating
First Claim
1. A coated glass article comprising:
- (A) a glass substrate, having a surface;
(B) a first coating of titanium dioxide deposited on and adhering to the surface of the glass substrate;
(C) a coating of silicon dioxide deposited on and adhering to the coating of titanium dioxide;
(D) a second coating of titanium dioxide deposited on and adhering to the coating of silicon oxide; and
(E) a coating of conductive tin oxide deposited on and adhering to said second coating of titanium dioxide, said coated glass article having a visible light transmittance (Illuminant C) of greater than 65%, a solar heat transmittance of less than 50%, and an emittance less than or equal to about 0.2.
1 Assignment
0 Petitions
Accused Products
Abstract
A glass article used for producing a coated, solar control glass for architectural windows. The coated article includes a glass substrate, a coating of titanium dioxide deposited on and adhering to the surface of the glass substrate, a coating of silicon dioxide deposited on and adhering to the surface of the coating of the titanium dioxide, a second coating of titanium dioxide deposited on and adhering to the surface of the coating of the silicon dioxide, and an outer coating of conductive tin oxide deposited on and adhering to the surface of the coating of titanium dioxide. A specific coating stack on the glass substrate provides a neutral colored article having a high visible light transmittance, a reduced solar energy transmittance, a low emittance, and a high total solar reflectance. The use of the article in architectural glazings results in a glazing that reflects solar energy in the summer and provides a low U value for the winter.
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Citations
33 Claims
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1. A coated glass article comprising:
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(A) a glass substrate, having a surface; (B) a first coating of titanium dioxide deposited on and adhering to the surface of the glass substrate; (C) a coating of silicon dioxide deposited on and adhering to the coating of titanium dioxide; (D) a second coating of titanium dioxide deposited on and adhering to the coating of silicon oxide; and (E) a coating of conductive tin oxide deposited on and adhering to said second coating of titanium dioxide, said coated glass article having a visible light transmittance (Illuminant C) of greater than 65%, a solar heat transmittance of less than 50%, and an emittance less than or equal to about 0.2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A coated glass article comprising:
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(A) a glass substrate, having a surface; (B) a first coating of titanium dioxide deposited on and adhering to the surface of the glass substrate, said first coating of titanium dioxide having a thickness of about 845 to about 940 Angstroms; (C) a coating of silicon dioxide deposited on and adhering to the coating of titanium dioxide, said coating of silicon dioxide having a thickness of about 1330 to about 1470 Angstroms; (D) a second coating of titanium dioxide deposited on and adhering to the coating of silicon oxide, said second coating of titanium dioxide having a thickness of about 815 to about 900 Angstroms; and (E) a coating of fluorine doped tin oxide deposited on and adhering to said coating of titanium dioxide, said coating of fluorine doped tin oxide having a thickness of about 2090 to about 2310 Angstroms, said coated glass article having a visible light transmittance (Illuminant C) of greater than 65%, a solar heat transmittance of less than 50%, an emittance less than or equal to about 0.2, and a U value less than 0.4 - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A coated glass article comprising:
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(A) a float glass ribbon, having a surface; (B) a first coating of titanium dioxide deposited on and adhering to the surface of the float glass ribbon, said first coating of titanium dioxide having a thickness of about 874 to about 910 Angstroms; (C) a coating of silicon dioxide deposited on and adhering to the coating of titanium dioxide, said coating of silicon dioxide having a thickness of is about 1372 to about 1428 Angstroms; (D) a second coating of titanium dioxide deposited on and adhering to the coating of silicon oxide, said second coating of titanium dioxide having a thickness of about 839 to about 874 Angstroms; and (E) a coating of fluorine doped tin oxide deposited on and adhering to said coating of titanium dioxide, said coating of fluorine doped tin oxide having a thickness of about 2156 to about 2244 Angstroms, said coated glass article having a visible light transmittance (Illuminant C) of greater than 65%, a solar heat transmittance of less than 50%, an emittance of 0.2, and a U value less than 0.4 - View Dependent Claims (28, 29, 30, 31, 32)
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33. A coated glass article consisting essentially of:
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(A) a glass substrate, having a surface; (B) a first coating of titanium dioxide deposited on and adhering to the surface of the glass substrate; (C) a coating of silicon dioxide deposited on and adhering to the coating of titanium dioxide; (D) a second coating of titanium dioxide deposited on and adhering to the coating of silicon oxide; and (E) a coating of conductive tin oxide deposited on and adhering to said second coating of titanium dioxide, said coated glass article having a visible light transmittance (Illuminant C) of greater than 65%, a solar heat transmittance of less than 50%, and an emittance less than or equal to about 0.2.
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Specification