Patent ID: 6884471
Filing Date: 2005-04-26
Classification: C03C,C23C

Abstract:
1. A method of producing a light-scattering layer on a glass ceramic cooktop, comprising the following steps: providing a transparent glass ceramic cooktop having a certain glass transition temperature; masking certain portions of a surface of said glass ceramic cooktop by a masking process; preheating said glass ceramic cooktop to a temperature between 200 to 450° C., but below said glass transition temperature; and applying a light-scattering layer onto said surface of said preheated glass ceramic cooktop by thermal spraying of a material comprising at least one material selected from the group formed by aluminum oxide, titanium oxide, boron nitride, zirconium oxide, silicon nitride and mixtures thereof with a maximum layer thickness of 100 μm, wherein said light-scattering layer is the uppermost layer on the finished ceramic cookup.