Verwendung eines BO- freien kristallisationsstabilen Aluminosilikatglases und dessen Herstellung

• Main Authors: Ott, Franz, Dr, Fechner, Jörg, Dr
• Format: Patent
• Language: German
• Published: 16.11.2017
• Subjects: 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

Verwendung eines B2O3-freien, kristallisationsstabilen Aluminosilikatglases, enthaltend50-66 Gew.-% SiO2 14-25 Gew.-% Al2O3 0-2 Gew.-% P2O5 0-7 Gew.-% MgO 5-14 Gew.-% CaO 0-8 Gew.-% SrO 6-18 Gew.-% BaO sowie 0,01-4 Gew.-% MoO3. zur Herstellung von Lampen, Kolben für Halogenlampen sowie als UV- Schutzglas, für Solarkollektoren, für flache Bildschirme und für pharmazeutische Verpackungen. The crystallization-stable alumino-silicate glass is free of B2O3 and contains 50 to 60% by weight, SiO2; 14 to 25% by weight, Al2O3; 0 to 2% by weight, P2O5; 0 to 7, % by weight, MgO; 5 to 14% by weight, CaO; 0.1-2.0% by weight, SrO; 12.0 to 18% by weight BaO and at least 0.01% by weight MoO3. The glass preferably contains <0.01 wt. % of water. The glass has high transmission in the visible and IR region of the spectrum, which makes it especially suitable for lamps, bulbs for halogen lamps; and also for solar collectors, for flat display screens and for pharmaceutical packages n which the glass functions as a UV-protective glass.