FI46718B

FI46718B

Glass of high refractive index, particularly for the manufacture of spherical balls for traffic-warning signs, has the following composition in weight per cent, viz. 25-30 TiO2, 45-59 BaO, 3-10 B2O3, and 13-20 Al2O3, these constituents forming at least 95% of the total composition, the remainder bei...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: MAURICE JAUPAIN, JUMET (BE)
Format: Patent
Sprache:eng
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:Glass of high refractive index, particularly for the manufacture of spherical balls for traffic-warning signs, has the following composition in weight per cent, viz. 25-30 TiO2, 45-59 BaO, 3-10 B2O3, and 13-20 Al2O3, these constituents forming at least 95% of the total composition, the remainder being in the nature of impurities or such materials as SiO2, CaO, and MgO which will not reduce the refractive index below 1.83.