Pharmaceutical packaging comprising a chemically resistant glass
AssigneeSchott AG
InventorsMichael Schwall, Christof Kass, Stephan Tratzky, Rainer Eichholz, Peter Nass
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Abstract
A pharmaceutical packaging is provided including a glass, comprising at least the following components (given in mol % on oxide basis): SiO2:59-84, Al2O3:7-18.5, CaO:1-25, SrO:0-6.5, BaO:0-5, ZrO2:0-3, TiO2:0-5, B2O3:0-1, wherein the ratio (CaO+SrO+BaO)/Al2O3<2.8, wherein the ratio (CaO+SrO+BaO)/SiO2≦0.39, wherein the hydrolytic resistance according to DIN ISO 720 is class HGA 1, and wherein the glass, apart from unavoidable contaminations, is free of alkali oxides and magnesium oxides.
Claims20
A pharmaceutical packaging comprising a glass, said glass comprising at least the following components (given in mol % on oxide basis):
- SiO2
- 59-84
- Al2O3
- 7-18.5
- CaO
- 1-25
- SrO
- 0-6.5
- BaO
- 0-5
- ZrO2
- 0-3
- TiO2
- 0-5
- B2O3
- 0-1,
- wherein the ratio (CaO+SrO+BaO)/Al2O3<2.8;
- wherein the ratio (CaO+SrO+BaO)/SiO2≦0.39;
- wherein the hydrolytic resistance according to DIN ISO 720 is class HGA 1;
- and
- wherein the glass, apart from unavoidable contaminations, is free of alkali oxides and of magnesium oxide.
A pharmaceutical packaging comprising a glass, said glass comprising at least the following components (given in mol % on oxide basis):
- SiO2
- 59-84
- Al2O3
- 7-18.5
- CaO
- 1-25
- SrO
- 0-6.5
- BaO
- 0-5
- ZrO2
- 0-3
- TiO2
- 0-5
- B2O3
- 0.1-1,
- wherein the ratio (CaO+SrO+BaO)/Al2O3<2.8;
- wherein the ratio (CaO+SrO+BaO)/SiO2≦0.39;
- wherein the hydrolytic resistance according to DIN ISO 720 is class HGA 1;
- and
- wherein the glass, apart from unavoidable contaminations, is free of alkali oxides and of magnesium oxide.
Dependencies are inferred from the claim text.