Aluminum-free borosilicate glass

An aluminum-free borosilicate glass includes the following glass composition (in weight-% on oxide basis): 70-80 SiO2; 8-14 B2O3; 0 Al2O3; 0-4 Na2O; 3-10 K2O; 0 Li2O; 3-14 sum Na2O+K2O; 0-1 CaO; 0-1 MgO; 0-1 BaO; 0-1 SrO; 0-2 sum CaO+MgO+BaO+SrO; 0-1 ZnO; 3.6-14 ZrO2; 0-10 TiO2; and 0.01-2.0 one or...

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Bibliographische Detailangaben
1. Verfasser:	Kass, Christof
Format:	Patent
Sprache:	eng
Schlagworte:	BABY COMFORTERS CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICALPURPOSES DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY DEVICES FOR RECEIVING SPITTLE DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGINGPHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL ORADMINISTERING FORMS GLASS HUMAN NECESSITIES HYGIENE JOINING GLASS TO GLASS OR OTHER MATERIALS MEDICAL OR VETERINARY SCIENCE 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 aluminum-free borosilicate glass includes the following glass composition (in weight-% on oxide basis): 70-80 SiO2; 8-14 B2O3; 0 Al2O3; 0-4 Na2O; 3-10 K2O; 0 Li2O; 3-14 sum Na2O+K2O; 0-1 CaO; 0-1 MgO; 0-1 BaO; 0-1 SrO; 0-2 sum CaO+MgO+BaO+SrO; 0-1 ZnO; 3.6-14 ZrO2; 0-10 TiO2; and 0.01-2.0 one or more refining agents, the weight ratio of ZrO2:K2O being in a range of 1.2:1 to 1.4:1.