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Reflective, solar control coated glass article

A technology for coating glass and products, which is applied in the field of coated glass products, anti-sunlight coated glass products, and reflection of visible light, and can solve problems such as difficulty in spectral characteristics, influence of transmittance or spectral characteristics, etc.

Inactive Publication Date: 2007-09-05
PILKINGTON NORTH AMERICA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adjustments to enhanced spectral properties can negatively affect other transmittance or spectral properties of coated glass articles
Obtaining the required spectral characteristics is often difficult when attempting to combine specific energy absorption and light transmission properties in coated glass articles

Method used

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  • Reflective, solar control coated glass article
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  • Reflective, solar control coated glass article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0026] The multilayer coating depositions in Examples 1-3 were deposited by chemical vapor deposition on clear float glass ribbons during the float glass production process. The glass thickness is 3-3.2 mm. In the heated zone of the float glass production process, an iridescent pressed interlayer is first deposited on the surface of the glass substrate. The iridescent pressed interlayer consists of a tin oxide coating deposited and adhered on a glass substrate. In the heated zone of the float glass production process, tin oxide is applied to the surface of the substrate by chemical vapor deposition by introducing dimethyl tin dichloride in an oxidizing atmosphere. A silica coating is then applied to the surface of the tin oxide coating by reaction of silane in the presence of oxygen and ethylene, close to the surface of the substrate in the heated zone of the float process.

[0027] A coating of fluorine-doped tin oxide is deposited on the surface of the silica coating. In ...

Embodiment 4-15

[0032] Coated glass articles produced in a manner consistent with Examples 1-3 had the following layer thicknesses: 271 Å SnO 2 , 172 A SiO 2 , 2100 A SnO 2 :F and 300 Ȧ TiO 2 . Eh was measured to be 0.22 for each sample. The properties of this coating deposited on various glass substrates of 1 / 4 inch thickness, clear and various colors, were then considered. These examples are numbered 4-9 and are shown in Table 2 below.

[0033] The properties of the same coated glass article as in Examples 4-9 were also considered when used as the outside light opening of an insulated glass unit with the coating deposited facing the inside of the structure. A 1 / 4 inch thick clear glass plate was used as the inside light opening of the insulated glass unit and positioned 1 / 2 inch from the coated article. These examples are numbered 10-15 and are shown in Table 3 below.

[0034] Example

Tvis

Tsol

Rg

Rf

SHGC

SC

Uwin

Usum

...

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Abstract

A coated glass article is formed having a glass substrate and at least first and second coatings deposited over the glass substrate. The first coating is a low emissivity layer having a first refractive index. The second coating is a reflecting layer having a second refractive index greater than the first refractive index of the first coating. The coated glass article exhibits an Rf>15% and an emissivity less than or equal to about 0.3.

Description

Background of the invention [0001] The invention relates to a coated glass, especially a coated glass product which reflects visible light and prevents sunlight. [0002] Coatings on architectural glass are generally used to provide specific energy absorption and light transmission properties. In addition, the coating provides the desired reflective properties or spectral characteristics that are aesthetically pleasing. Coated articles are often used alone or in combination with other coated articles to form glazing or window components. [0003] Coated glass articles are typically produced "on-line" by continuously coating glass substrates at the time of manufacture in a manner known in the art as the "float glass production process". Furthermore, coated glass articles can be produced "off-line" by the sputtering process. The previous production process consisted of casting glass on a suitably enclosed bath of molten tin, then conveying the glass, after it had cooled suffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/34
CPCC03C2217/71C03C17/3417Y10T428/265C03C17/36
Inventor S·瓦拉纳斯M·P·小雷明格顿D·A·斯特里克勒
Owner PILKINGTON NORTH AMERICA INC