	US 12,441,651 B2
	Low iron, high redox ratio, and high iron, high redox ratio, soda-lime-silica glasses and methods of making same
Mark O. Naylor, Philadelphia, PA (US); Lawrence E. Jansen, Broken Arrow, OK (US); and Larry J. Shelestak, Bairdford, PA (US)
Assigned to Vitro Flat Glass LLC, Cheswick, PA (US)
Filed by Vitro Flat Glass LLC, Cheswick, PA (US)
Filed on Aug. 22, 2023, as Appl. No. 18/236,420.
Application 18/236,420 is a continuation of application No. 17/682,308, filed on Feb. 28, 2022, granted, now 11,780,764.
Application 17/682,308 is a continuation of application No. 15/071,805, filed on Mar. 16, 2016, granted, now 11,261,122, issued on Mar. 1, 2022.
Application 15/071,805 is a continuation in part of application No. 14/252,206, filed on Apr. 14, 2014, abandoned.
Claims priority of provisional application 61/812,006, filed on Apr. 15, 2013.
Prior Publication US 2024/0018032 A1, Jan. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C03C 3/087 (2006.01); C03B 18/02 (2006.01); C03B 18/12 (2006.01); C03C 3/095 (2006.01); C03C 4/00 (2006.01); C03C 4/02 (2006.01); C03B 3/02 (2006.01); C03B 5/193 (2006.01); C03B 5/225 (2006.01)

CPC C03C 3/087 (2013.01) [C03B 18/02 (2013.01); C03B 18/12 (2013.01); C03C 3/095 (2013.01); C03C 4/0092 (2013.01); C03C 4/02 (2013.01); C03B 3/02 (2013.01); C03B 5/193 (2013.01); C03B 5/2252 (2013.01); Y02P 40/57 (2015.11)]

16 Claims

1. A glass, comprising:

a basic soda-lime-silica glass portion, wherein the basic soda-lime-silica glass portion comprises:


	SiO₂	65-80 wt. %
	Na₂O	10-20 wt. %
	CaO	5-15 wt. %
	MgO	0-8 wt. %
	Al₂O₃	0-5 wt. %
	K₂O	0-5 wt. %;

a colorant portion;

total iron as Fe₂O₃in the range of greater than zero to 0.02 weight percent;

a redox ratio in the range of 0.35 to 0.6, and

tin metal providing tin in an amount within the range of greater than 0.005 to 5.0 weight percent; wherein the glass product has a tin side and an opposite air side, said tin side of the glass having a higher concentration of tin than the air side, the air side having a uniform concentration of tin from the air side of the glass product towards the tin side of the glass product.