Heated backlights
AssigneePPG Industries, Inc.
InventorsHarold E. Donley, Cheryl E. Belli
Life of this patent
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Abstract
A heated automobile backlight having a dark colored electroconductive grid. The composition includes silver powder, a glass frit such a lead borosilicate frit, and reducing agents such as stannous sulfate and chromic oxide.
Claims16
An electrically heated glass product including a glass substrate and an electroconductive coating on at least a portion of said glass substrate, said coating comprising an electroconductive frit fixed to said glass and colloidal silver encapsulated within said glass substrate immediately adjacent to said frit.
An electrically heated glass product including a glass substrate and an electroconductive coating on at least a portion of said glass substrate, said coating comprising an electroconductive frit fixed to said glass and colloidal silver encapsulated by said glass immediately adjacent to said frit wherein said electroconductive frit includes a lead borosilicate frit, silver powder, a trivalent chromium compound and a divalent tin compound.
Dependencies are inferred from the claim text.