US 9,845,261 B2 · Method of making heat treated coated article using carbon based coating and protective film

Abstract

A method of making a heat treated (HT) substantially transparent coated article to be used in shower door applications, window applications, tabletop applications, or any other suitable applications. For example, certain embodiments relate to a method of making a coated article including a step of heat treating a glass substrate coated with at least layer of or including carbon (e.g., diamond-like carbon (DLC)) and an overlying protective film thereon. The protective film may be of or include both (a) an oxygen blocking or barrier layer, and (b) a release layer, with the release layer being located between at least the carbon based layer and the oxygen blocking layer. The release layer is of or includes zinc oxynitride (e.g., ZnOxNz). Following and/or during heat treatment (e.g., thermal tempering, or the like) the protective film may be entirely or partially removed. Other embodiments of this invention relate to the pre-HT coated article, or the post-HT coated article.

Claims17

Dependent claims

A method of making a heat treated coated article, the method comprising:

heat treating a coated glass substrate, the coated glass substrate comprising, prior to the heat treating, a glass substrate, a layer comprising diamond-like carbon (DLC) on the glass substrate, and a protective film on the glass substrate over at least the layer comprising DLC, wherein the protective film includes a release layer and an oxygen barrier layer, the release layer and the oxygen barrier layer being of different material, and wherein the release layer comprises zinc oxynitride ZnOxNz where a nitrogen to oxygen ratio z/x in the release layer is from 0.77 to 1.0;
during said heat treating of the coated glass substrate with the layer comprising DLC and the protective film thereon, the protective film prevents significant burnoff of the layer comprising DLC, and wherein the heat treating comprises heating the glass substrate to temperature(s) sufficient for thermal tempering, heat strengthening, and/or heat bending;
and
exposing the protective film to a release liquid and removing at least part of the protective film during and/or after said heat treating.

1 more element

Dependencies are inferred from the claim text.

Method of making heat treated coated article using carbon based coating and protective film

Life of this patent

Method of making heat treated coated article using carbon based coating and protective film

Life of this patent

Abstract

Claims17