Alkali zinc silicate glass-ceramics and glasses

Alkali-zinc-silicate glass-ceramic or glass comprises (by wt.) SiO2 (52-63.5%), Me(III)2O3 (8.5-13%), K2O (0-20.5%), Na2O (1.5-20%), Li2O (0-5%), ZnO (2-8, especially 3.1-8, %), Me(II)O (2.5-6.5%), TiO2 + ZrO2 (0.5-6%), SnO2 (0-9.5%), P2O5 (0-4%), F (0-2%) and CeO2 (0-3%). Me(III)2O3 comprises Al2O3...

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Bibliographic Details
Main Authors FRANK, MARTIN, WEGNER, SUSANNE, RHEINBERGER, VOLKER, HOELAND, WOLFRAM
Format Patent
LanguageEnglish
French
German
Published 10.03.2004
Edition7
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
HUMAN NECESSITIES
HYGIENE
JOINING GLASS TO GLASS OR OTHER MATERIALS
MEDICAL OR VETERINARY SCIENCE
METALLURGY
MINERAL OR SLAG WOOL
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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Summary:Alkali-zinc-silicate glass-ceramic or glass comprises (by wt.) SiO2 (52-63.5%), Me(III)2O3 (8.5-13%), K2O (0-20.5%), Na2O (1.5-20%), Li2O (0-5%), ZnO (2-8, especially 3.1-8, %), Me(II)O (2.5-6.5%), TiO2 + ZrO2 (0.5-6%), SnO2 (0-9.5%), P2O5 (0-4%), F (0-2%) and CeO2 (0-3%). Me(III)2O3 comprises Al2O3 (0-13%) and La2O3 (0-9.5%). Me(III)O comprises CaO (0-3.5%), BaO (0-4.5%) and MgO (0-5%). An Independent claim is given for production of the glass-ceramic by heating a glass made up of the above components at 600-900 degrees C for 0.5-5 hours.
Bibliography:Application Number: EP20030008836