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公开(公告)号:EP1940341B1
公开(公告)日:2009-08-05
申请号:EP06806806.3
申请日:2006-09-25
发明人: RITZBERGER (GEB. VAN T'HOEN), Christian , RHEINBERGER, Volker , APEL, Elke , BURTSCHER, Peter , HÖLAND, Wolfram , GRAULE, Thomas , ZÜRCHER, Simone , VITAL, Andri
CPC分类号: A61K6/0276 , A61K6/0073 , A61K6/0215 , A61K6/024 , A61K6/025 , A61K6/083 , A61K6/0835 , C03C3/095 , C03C4/0007
摘要: Dental glass comprises (wt.%): silicon oxide (50-70), aluminum oxide (5-18), magnesium oxide (6.1-30), lanthanum oxide (1-15), tungsten oxide (1-15), zirconium oxide (0.1-8) and optionally other oxides except for those of strontium, barium and alkali metals. An independent claim is also included for producing dental glass by producing a melt with the above composition, producing a glass frit by cooling the melt, precomminuting the glass frit, and fine grinding to a powder.
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公开(公告)号:EP1940341A2
公开(公告)日:2008-07-09
申请号:EP06806806.3
申请日:2006-09-25
发明人: RITZBERGER (GEB. VAN T'HOEN), Christian , RHEINBERGER, Volker , APEL, Elke , BURTSCHER, Peter , HÖLAND, Wolfram , GRAULE, Thomas , ZÜRCHER, Simone , VITAL, Andri
CPC分类号: A61K6/0276 , A61K6/0073 , A61K6/0215 , A61K6/024 , A61K6/025 , A61K6/083 , A61K6/0835 , C03C3/095 , C03C4/0007
摘要: Dental glass comprises (wt.%): silicon oxide (50-70), aluminum oxide (5-18), magnesium oxide (6.1-30), lanthanum oxide (1-15), tungsten oxide (1-15), zirconium oxide (0.1-8) and optionally other oxides except for those of strontium, barium and alkali metals. An independent claim is also included for producing dental glass by producing a melt with the above composition, producing a glass frit by cooling the melt, precomminuting the glass frit, and fine grinding to a powder.
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