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US 2024/0190757 A1Published application
Aluminosilicate glass
AssigneeSchott AG
InventorsMalte Grimm, Rainer Erwin Eichholz, Oliver Hochrein, Susanne Krüger
Life of this patent
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Abstract
A glass includes the following components in the indicated amounts (in mol %): 64.5-73.0 SiO2; 4.0-11.0 Al2O3; 0-0.2 B2O3; 0-3.5 Na2O; 0-4.0 K2O; 0.1-7.0 MgO; 3.0-15.0 CaO; 0-10.0 SrO; 0-5.0 BaO; 0-0.5 ZnO; 0.1-7.5 R2O, where R2O indicates a sum of the molar amounts of Na2O and K2O; and >15.0-22.5 RO, where RO indicates a sum of the molar amounts of MgO, CaO, SrO, BaO and ZnO.
Claims15
A glass, comprising the following components in the indicated amounts (in mol %):
- SiO2 64.5-73.0;
- Al2O3 4.0-11.0;
- B2O3 0-0.2;
- Na2O 0-3.5;
- K2O 0-4.0;
- MgO 0.1-7.0;
- CaO 3.0-15.0;
- SrO 0-10.0;
- BaO 0-5.0;
- ZnO 0-0.5;
- R2O 0.1-7.5, wherein R2O indicates a sum of the molar amounts of Na2O and K2O;
- and
- RO>15.0-22.5, wherein RO indicates a sum of the molar amounts of MgO, CaO, SrO, BaO and ZnO.
10 more elements
A method for the production of a glass, the method comprising:
- processing a glass melt by down draw, overflow fusion, redrawing, floating or a tube drawing method to produce the glass, the glass comprising the following components in the indicated amounts (in mol %):
- SiO2 66.5-71.0;
- Al2O3 7.0-10.5;
- B2O3 0-0.1;
- Na2O 0.1-3.0;
- K2O 0-3.0;
- MgO 1.0-4.0;
- CaO 4.0-14.0;
- SrO 0-9.0;
- BaO 0-4.5;
- ZnO 0-0.1;
- R2O 0.1-5.5;
- and
- RO 15.5-21.5.
11 more elements
A pharmaceutical primary packaging, comprising:
- a glass comprising the following components in the indicated amounts (in mol %):
- SiO2 66.5-71.0;
- Al2O3 7.0-10.5;
- B2O3 0-0.1;
- Na2O 0.1-3.0;
- K2O 0-3.0;
- MgO 1.0-4.0;
- CaO 4.0-14.0;
- SrO 0-9.0;
- BaO 0-4.5;
- ZnO 0-0.1;
- R2O 0.1-5.5;
- and
- RO 15.5-21.5.
11 more elements
Dependencies are inferred from the claim text.