GLASS COMPOSITIONS

An infrared and ultraviolet soda-lime-silica glass of a neutral tint containing 0.25% to 1.75% by weight total iron expressed as Fe2O3 and a ferrous content by weight calculated from the equation: % by weight FeO .gtoreq. 0.007 + (Optical density - 0.036)/2.3 the glass further including one or more...

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Bibliographische Detailangaben
Hauptverfasser:	FYLES, KENNETH MELVIN, MCPHAIL, HELEN LOUISE
Format:	Patent
Sprache:	eng ; fre
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:	An infrared and ultraviolet soda-lime-silica glass of a neutral tint containing 0.25% to 1.75% by weight total iron expressed as Fe2O3 and a ferrous content by weight calculated from the equation: % by weight FeO .gtoreq. 0.007 + (Optical density - 0.036)/2.3 the glass further including one or more colourants selected from the group consisting of Se, Co3O4, Nd2O3, NiO, V2O5, CeO2, TiO2, CuO, MnO and SnO such that the glass, in a 4 mm thickness has a visible light transmission of at least 32%, a direct solar heat transmission at least seven percentage points lower than the visible light transmission and an ultraviolet transmission of less than 25%.