Patent · US Active

Method for producing a glass ceramic with a predefined transmittance

US9834472B2 · kind B2 · utility

3Cited by

3References

19Claims

0Family size

Assignee

Schott AG · DE

Inventors

Falk Gabel · Schlangenbad, DE
Friedrich Siebers · Nierstein, DE
Ulrich Schiffner · Mainz, DE
Evelin Weiss · Mainz, DE

Key dates

Filing date	Dec 29, 2014
Grant date	Dec 5, 2017
Priority date	—
Expiry date	Dec 29, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C2204/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method of manufacturing glass ceramic articles such as glass ceramic plates for cooktops or fireplace windows is provided. The method facilitates the adjustment of a specific hue or a specific absorptivity of the glass ceramic in the visible spectral range. The method is based on the finding that the absorption of light by coloring agents which are appropriate for or present in glass ceramics can be attenuated during the ceramization process by adding substances that have a decoloring effect.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.