CULINARY GLASS COMPOSITION WITH LOW BORON CONTENT

CULINARY GLASS COMPOSITION WITH LOW BORON CONTENT

[Low boron content culinary cooking glass composition comprising, by weight, SiO2+Al2O3 more than 73.0%, CaO+MgO at least 8.0%, SiO2 from 70.0 to 78.0%, Na2O from 8.0 to 12.0%, CaO from 4.0 to 8.0%, Al2O3 less than 5.0%, MgO from 3.0 to 11.0%, K2O less than 2.0%, SrO less than 5.0%, SO3 less than 0....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DELAVAL, Rodolphe, DONZE, Sébastien
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:[Low boron content culinary cooking glass composition comprising, by weight, SiO2+Al2O3 more than 73.0%, CaO+MgO at least 8.0%, SiO2 from 70.0 to 78.0%, Na2O from 8.0 to 12.0%, CaO from 4.0 to 8.0%, Al2O3 less than 5.0%, MgO from 3.0 to 11.0%, K2O less than 2.0%, SrO less than 5.0%, SO3 less than 0.25% and B2O3 less than 0.20%, having a glass transition temperature Tg less than 700° C., preferably less than 640° C., a coefficient of expansion less than 75.0 10−7 K−1 and a specific thermal stress less than 0.75 MPa/K.]