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US 4,898,790 AGranted
Low emissivity film for high temperature processing
AssigneePPG Industries, Inc.
InventorJames J. Finley
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Abstract
A multiple-layer, high transmittance, low emissivity coated article which can be subjected to high temperature processing such as bending, annealing, tempering, laminating or glass welding as a result of primer layers comprising metal and metal oxide is disclosed.
Claims12
A high transmittance, low emissivity article comprising:
- a. a transparent nonmetallic substrate;
- b. a first transparent antireflective metal oxide film deposited on a surface of said substrate;
- c. a transparent infrared reflective metallic film;
- d. a transparent metal-containing primer film deposited on said infrared reflective metallic film comprising a first layer of metal and a second layer of metal oxide;
- and
- e. a second transparent antireflective metal oxide film deposited on said primer film wherein said primer film comprises a different metal oxide from said second antireflective metal oxide film.
3 more elements
Dependencies are inferred from the claim text.