Heat insulating glass with multilayer coating

Details Heat insulating glass with multilayer coating Heat insulating glass with multilayer coating

1993-08-13

1996-03-26

Robinson, Ellis P.

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

20419222, 20419226, 20419227, 20419228, C23C 1400

Patent

active

055017800

ABSTRACT:
A gray-colored heat insulating glass plate has a transparent glass plate and a multilayer coating formed on one side of the glass plate. The multilayer coating includes first, second and third layers. The first layer is formed on a surface of the glass plate, is a film of a tantalum oxide, and has a thickness ranging from 5 to 20 nm. The second layer is formed on the first layer, is a film of an oxynitride of a metal selected from Cr, Ni--Cr alloy and stainless steel, and has a thickness ranging from 5 to 25 nm. The third layer is formed on the second layer, is a film of a tantalum oxide, and has a thickness ranging from 5 to 20 nm. The heat insulating glass plate is sufficiently low in transmittance for solar radiation, sufficiently high in transmittance for radio waves, relatively low in transmittance for the visible light and good in durability.

REFERENCES:
patent: 4048039 (1977-09-01), Daxinger
patent: 4101200 (1978-07-01), Daxinger
patent: 4786784 (1988-11-01), Nikoderm
patent: 4911809 (1990-03-01), Wort
patent: 4946751 (1990-08-01), Bruns

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