HIGH-STRENGTH, TRANSLUCENT MICA GLASS-CERAMICS

PCT No. PCT/DE97/00504 Sec. 371 Date Feb. 18, 1998 Sec. 102(e) Date Feb. 18, 1998 PCT Filed Mar. 13, 1997 PCT Pub. No. WO97/34847 PCT Pub. Date Sep. 25, 1997The invention relates to a glass ceramic in which mica and ZrO2 are present in crystallized form, containing: K2O: 0-9% by weight Na2O: 0-9% by...

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Hauptverfasser:	REISE, MICHAEL, MUELLER, GERD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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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Zusammenfassung:	PCT No. PCT/DE97/00504 Sec. 371 Date Feb. 18, 1998 Sec. 102(e) Date Feb. 18, 1998 PCT Filed Mar. 13, 1997 PCT Pub. No. WO97/34847 PCT Pub. Date Sep. 25, 1997The invention relates to a glass ceramic in which mica and ZrO2 are present in crystallized form, containing: K2O: 0-9% by weight Na2O: 0-9% by weight with the condition that Na2O and K2O together make up at least about 4% by weight, SiO2: 35-60% by weight MgO: 10-25% by weight Al2O3: 7-30% by weight ZrO2: 4-12% by weight F-: 2-10% by weight which is essentially free of lithium, calcium, strontium and barium, to a process for its production and to its use as a tooth replacement.