Vitroceramic plate

US10017415B2 · kind B2 · utility

Assignee

• EUROKERA S.N.C. · FR

Inventors

• Kamila Plevacova · Courbevoie, FR
• Emmanuel Lecomte · Aulnay-sous-Bois, FR
• Cécile Jousseaume · Paris, FR
• Richard Di Caro · Paris, FR

Key dates

• Filing date: Sep 11, 2015
• Grant date: Jul 10, 2018
• Expiry date: Sep 11, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F24C15/04
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A transparent, colorless and non-scattering glass-ceramic plate of lithium aluminosilicate type and containing crystals of β-quartz structure, the chemical composition of which does not contain oxides of arsenic, of antimony and of neodymium, and includes the following constituents within the limits defined below, expressed as weight percentages: SiO2 55-75%; Al2O3 12-25%; Li2O 2-5%; Na2O+K2O 0-<2%; Li2O+Na2O+K2O 0-<7%; CaO 0.3-5%; MgO 0-5%; SrO 0-5%; BaO 0.5-10%; CaO+BaO >1%; ZnO 0-5%; TiO2 ≤1.9%; ZrO2 ≤3%; TiO2+ZrO2 >3.80%; SnO2 ≥0.1%; SnO2/(SnO2+ZrO2+TiO2)<0.1.