Hot end metal oxide coatings for glass substrates and containers

Abstract

A method of coating a glass substrate with a hot end coating is provided. The method comprises a step of applying an aqueous dispersion including particles of a metal hydroxide composition onto a surface of the glass substrate to form a hot end coating on the glass substrate. The glass surface has a temperature of from about 450° C. to about 1000° C. when the aqueous dispersion is applied thereto. After application, the hot end coating includes oxide(s) of the metal or combinations thereof. A coated glass article is also provided. The coating on the glass article includes at least one of Group 3 A oxides, Group 4A oxides, or combinations thereof; preferably TiO2, TiO, Ti2O3, TizOa (0<z≤2 and 0<a≤3), ZrO2, ZrbOc (0<b≤1 and 0<c≤2), Al2O3, Al2O, AlO, AlxOy (0<x≤2 and 0<y≤3) or combinations thereof; more preferably Al2O3, Al2O, AlO, AlxOy (0<x≤2 and 0<y≤3) or combinations thereof.

Dependencies are inferred from the claim text.