US 11,697,610 B2
Fused quartz container having low levels of surface defects
Ben Gauthier, University Heights, OH (US); Robert Koch, Shaker Heights, OH (US); Todd Springer, Twinsburg, OH (US); David Xu, Cupertino, CA (US); and Gloriana Volio, Streetsboro, OH (US)
Assigned to Momentive Performance Materials Quartz, Inc., Strongsville, OH (US)
Appl. No. 16/475,156
Filed by Momentive Performance Materials Quartz, Inc., Strongsville, OH (US)
PCT Filed Jan. 12, 2018, PCT No. PCT/US2018/013449
§ 371(c)(1), (2) Date Jul. 1, 2019,
PCT Pub. No. WO2018/132637, PCT Pub. Date Jul. 19, 2018.
Claims priority of provisional application 62/446,017, filed on Jan. 13, 2017.
Prior Publication US 2019/0330097 A1, Oct. 31, 2019
Int. Cl. C03C 3/06 (2006.01); A61B 5/154 (2006.01); A61J 1/06 (2006.01); A61L 31/02 (2006.01); A61M 5/24 (2006.01); A61M 5/31 (2006.01); C03B 23/09 (2006.01); C03B 23/11 (2006.01)
CPC C03C 3/06 (2013.01) [A61B 5/154 (2013.01); A61J 1/065 (2013.01); A61L 31/028 (2013.01); A61M 5/24 (2013.01); A61M 5/3129 (2013.01); C03B 23/092 (2013.01); C03B 23/11 (2013.01); C03B 2201/02 (2013.01); C03C 2201/02 (2013.01); C03C 2203/52 (2013.01); Y10T 428/13 (2015.01); Y10T 428/131 (2015.01)] 11 Claims
OG exemplary drawing
 
1. A quartz glass pharmaceutical container defining an interior volume and having an upper end, a base end, at least one wall defining an inner surface and an outer surface, wherein the inner surface of the container has a surface feature density of 50 or fewer surface features per square centimeter within a 1 cm band centered 1 cm from the base end of the pharmaceutical container, the surface features having a size of 1 to 200 μm.