Glazing perimeter anticondensation coating production technology
a technology of anti-condensation coating and glazing perimeter, which is applied in the direction of glass tempering apparatus, glass making apparatus, manufacturing tools, etc., can solve the problems of low heat transfer through the center region of an ig unit, and achieve the effect of higher electrical conductivity, higher electrical conductivity, and higher electrical conductivity
Active Publication Date: 2017-06-15
CARDINAL CG
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Benefits of technology
The invention provides a glass pane with a transparent electrically conductive coating on its surface, which has higher electrical conductivity at its central region than at its perimeter region. This results in a coated surface with a central region and a perimeter region. The coated surface can be heat treated to further enhance its electrical conductivity. The invention also provides a multiple-pane insulating glass unit with the coated surface, and a heat treatment method for the glass pane. The technical effects include improved electrical conductivity and better heat treatment efficiency for the coated surface.
Problems solved by technology
As a result, heat transfer through the center region of an IG unit is particularly low.
Method used
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[0018]The following detailed description is to be read with reference to the drawings, in which like elements in different drawings have like reference numerals. The drawings, which are not necessarily to scale, depict selected embodiments and are not intended to limit the scope of the invention. Skilled artisans will recognize that the examples provided herein have many useful alternatives that fall within the scope of the invention.
[0019]The invention provides a coated glass pane having an anti-condensation perimeter region. The glass pane 10′ has a transparent electrically conductive coating 107 on a surface 18 of the glass pane, such that the glass pane has a coated surface. The term “transparent” here means the coating has a visible transmission of at least 20%. The coated surface 18 has a central region 205 and a perimeter region 210. The coating 107 has higher electrical conductivity at the central region 205 than it does at the perimeter region 210.
[0020]Preferably, the elec...
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Abstract
The invention provides a glass pane that has a transparent electrically conductive coating on a surface of the glass pane, such that the glass pane has a coated surface. The coated surface has a central region and a perimeter region. The transparent electrically conductive coating has a higher electrical conductivity at the central region than it does at the perimeter region. In some embodiments, the coated glass pane is part of an IG unit. Also provided are methods of producing a coated glass pane having an anti-condensation perimeter region.
Description
FIELD OF THE INVENTION[0001]The present invention relates generally to thin film coatings for glass and other substrates. More particularly, this invention relates to heat-treated transparent electrically conductive coatings.BACKGROUND OF THE INVENTION[0002]Water sometimes collects on windows and other glazing assemblies, like any other surfaces, in the form of condensation. Condensation forms, for example, when a window surface is cooled to the point where the rate of evaporation from the surface is lower than the rate of condensation to the surface from the air. A cooler surface or a higher moisture content in the air will make condensation more likely. Consider a winter environment where the outdoor conditions are relatively cold and the indoor environment is relatively warm, and at least somewhat humid. When condensation forms on a glazing in such environments, it is typically more likely to occur at the perimeter of the room-side glass surface, i.e., near the frame. This is bec...
Claims
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IPC IPC(8): H05B3/00C03C17/23C03B27/012E06B7/12
CPCH05B3/0033E06B7/12C03C17/23C03C2217/228C03C2217/70C03C2218/322C03B27/012C03C17/2453C03C17/3411C03C17/3435C03C2217/94C03C2217/948C03C2218/32
Inventor BURROWS, KEITH JAMES
Owner CARDINAL CG