Tempered glass for thermal insulation

The invention relates to a pane that has undergone a chemical toughening operation so as to have an alkali-metal-ion concentration gradient from its surface over an exchange depth of at least 100 mum, a surface stress of at least 200 MPa, and a strain point at the core of at least 550° C. The pane c...

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Bibliographische Detailangaben
1. Verfasser:	MARANDON FRANCK
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY COMBUSTION APPARATUS COMBUSTION PROCESSES DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS DOMESTIC STOVES OR RANGES FOR SOLID FUELS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GLASS HEATING JOINING GLASS TO GLASS OR OTHER MATERIALS LIGHTING MECHANICAL ENGINEERING METALLURGY MINERAL OR SLAG WOOL OTHER DOMESTIC STOVES OR RANGES RANGES SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a pane that has undergone a chemical toughening operation so as to have an alkali-metal-ion concentration gradient from its surface over an exchange depth of at least 100 mum, a surface stress of at least 200 MPa, and a strain point at the core of at least 550° C. The pane can be used especially in the field of domestic cooking, as a pyrolytic oven door, stove, fire guard, flue insert, and more generally for separating two gaseous atmospheres at different temperatures. The pane is particularly resistant to heat shocks.