	US 11,999,653 B2
	High liquidus viscosity bioactive glass
Huayun Deng, Painted Post, NY (US); Qiang Fu, Painted Post, NY (US); John Christopher Mauro, Boalsburg, PA (US); and Michael Joshua Snyder, Almond, NY (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Filed by CORNING INCORPORATED, Corning, NY (US)
Filed on Jun. 3, 2022, as Appl. No. 17/832,208.
Application 17/832,208 is a division of application No. 16/202,952, filed on Nov. 28, 2018, granted, now 11,384,009.
Claims priority of provisional application 62/591,446, filed on Nov. 28, 2017.
Prior Publication US 2022/0298058 A1, Sep. 22, 2022
Int. Cl. C03C 3/097 (2006.01); A61K 33/42 (2006.01); C03C 4/00 (2006.01); C03C 13/00 (2006.01); C03B 37/02 (2006.01); C03B 37/022 (2006.01)

CPC C03C 3/097 (2013.01) [A61K 33/42 (2013.01); C03C 4/0014 (2013.01); C03C 4/0021 (2013.01); C03C 13/00 (2013.01); C03B 37/02 (2013.01); C03B 37/022 (2013.01); C03C 2204/00 (2013.01); C03C 2213/00 (2013.01); C03C 2213/02 (2013.01)]

13 Claims

1. 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.