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Publication of BE347533ApublicationCriticalpatent/BE347533A/xx
C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
C03C3/00—Glass compositions
C03C3/04—Glass compositions containing silica
C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium