Patent Number: 10,028,580

Title: High-strength colored glass ceramics as a cooktop, smooth on both sides

Abstract: A glass-ceramic cooktop is provided that is made of glass-ceramic material with a flat upper side and an underside. The glass-ceramic material has transmittance values of greater than 0.1% in the visible light range in the total wavelength region greater than 420 nm, a light transmittance in the visible range of 0.8-2.5%, and a transmittance of 0-85% in the infrared at 1600 nm, and wherein the glass-ceramic material has high quartz mixed crystals as the prevalent crystal phase. The underside is flat, unstructured, and coplanar with the upper side.

Inventors: Doerk; Birgit (Mainz, DE), Weiss; Evelin (Mainz, DE), Zenker; Thomas (Neider-Olm, DE), Hoffmann; Ulf (Pfungstadt, DE), Knoche; Silke (Saulheim, DE), Taplan; Martin (Mainz, DE), Siebers; Friedrich (Nierstein, DE), Kraus; Thomas (Stadecken-Elsheim, DE), Klippe; Lutz (Wiesbaden, DE), Schmidbauer; Wolfgang (Mainz, DE)

Assignee: SCHOTT AG

International Classification: H05B 3/68 (20060101); C03C 17/00 (20060101); C03C 10/00 (20060101); F24C 15/10 (20060101); A47B 77/08 (20060101)

Expiration Date: 2022-07-24 0:00:00