High liquidus viscosity bioactive glass
AssigneeCorning Incorporated
InventorsHuayun Deng, Qiang Fu, John Christopher Mauro, Michael Joshua Snyder
Life of this patent
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Abstract
Methods of making a bioactive glass fiber include forming a melt of a glass composition including: 50 to 70% SiO2; 0.1 to 10% Al2O3, 5 to 30% Na2O, 0.1 to 15% K2O, 0.1 to 15% MgO, 0.1 to 20% CaO, and 5 to 10% P2O5, based on a 100 wt % of the glass composition. The melt has a viscosity of from 200 Poise to 2,000 Poise. Methods include drawing the melt into a drawn glass fiber. Bioactive glass compositions include: 60 to 70% SiO2; 15 to 30% Na2O, 5 to 15% K2O, 1 to 10% CaO, and 5 to 10% P2O5, based on a 100 wt % of the glass composition.
Claims13
A method of making a bioactive glass fiber comprising:
- forming a melt of a glass composition comprising:
- 50 to 70% SiO2,
- 5 to 30% Na2O,
- 0.1 to 15% K2O,
- 0.1 to 20% CaO, and
- 5 to 10% P2O5, based on a 100 wt % of the glass composition, wherein the melt has a viscosity of from 200 Poise to 2,000 Poise;
- and
- drawing the melt into a drawn glass fiber;
- wherein the glass composition is free of Al2O3, MgO, or both.
A bioactive glass composition comprising:
- 60 to 70% SiO2,
- 15 to 30% Na2O,
- 5 to 15% K2O,
- 1 to 10% CaO, and
- 5 to 10% P2O5, based on a 100 wt % of the bioactive glass composition wherein the bioactive glass composition is free of Al2O3, MgO, or both.
Dependencies are inferred from the claim text.