Coated article with low-e coating having zinc stannage based layer between ir reflecting layers for reduced mottling and corresponding method
AssigneeGuardian Industries Corp.
InventorsJose FERREIRA, Pierrot PALLOTTA, Richard BLACKER, Muhammad IMRAN
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Abstract
A coated article is provided which may be heat treated (e.g., thermally tempered) and/or heat bent in certain example instances. In certain example embodiments, a zinc stannate based layer is provided between a tin oxide based layer and a silicon nitride based layer, and this has been found to significantly reduce undesirable mottling damage upon heat treatment/bending. This results in significantly improved bendability of the coated article in applications such as vehicle windshields and the like.
Claims5
1-23. (canceled)
A coated article including a glass substrate supporting a coating thereon, the coating comprising:
- a first dielectric layer supported by the first bent glass substrate;
- an infrared (IR) reflecting layer comprising silver supported by the first bent glass substrate and located over at least the first dielectric layer;
- a first layer comprising tin oxide located over at least the first IR reflecting layer and the first dielectric layer;
- a first layer comprising zinc stannate located over and contacting the first layer comprising tin oxide;
- and
- a layer comprising silicon nitride located over at least the first layer comprising zinc stannate.
Dependencies are inferred from the claim text.