Method of making laminating glazing unit

Abstract

A method of making a glazing unit comprises sputter coating surface of a substrate ply with a first film of dielectric material and then a substantially transparent, electrically conductive coating, and then laminating the coated surface of the substrate ply to a laminating ply of polymeric material. The first film of dielectric material is sputtered onto the surface of the substrate followed by sputtering, in a non-oxidizing atmosphere, an electrically conductive film of silver metal over the first dielectric film. An adhesion film of copper or zinc is sputtered over the silver metal film in a non-oxidizing atmosphere. A film of tantalum pentoxide is then sputtered over the adhesion film. Applications include, for example, glazing units for solar load reduction and electrically heated glazing units.

Dependencies are inferred from the claim text.