US 11,724,860 B2
Passivation, pH protective or lubricity coating for pharmaceutical package, coating process and apparatus
John T. Felts, Alameda, CA (US); Thomas E. Fisk, Green Valley, AZ (US); Robert S. Abrams, Albany, NY (US); John Ferguson, Auburn, AL (US); Jonathan R. Freedman, Auburn, AL (US); Robert J. Pangborn, Harbor Springs, MI (US); Peter J. Sagona, Pottstown, PA (US); and Christopher Weikart, Auburn, AL (US)
Assigned to SIO2 Medical Products, Inc., Auburn, AL (US)
Filed by SiO2 Medical Products, Inc., Auburn, AL (US)
Filed on Sep. 24, 2021, as Appl. No. 17/484,944.
Application 16/226,463 is a division of application No. 14/357,418, granted, now 10,189,603, issued on Jan. 29, 2019, previously published as PCT/US2012/064489, filed on Nov. 9, 2012.
Application 17/484,944 is a continuation of application No. 16/806,589, filed on Mar. 2, 2020, granted, now 11,148,856.
Application 16/806,589 is a continuation of application No. 16/226,463, filed on Dec. 19, 2018, granted, now 10,577,154, issued on Mar. 3, 2020.
Claims priority of provisional application 61/645,003, filed on May 9, 2012.
Claims priority of provisional application 61/636,377, filed on Apr. 20, 2012.
Claims priority of provisional application 61/558,885, filed on Nov. 11, 2011.
Prior Publication US 2022/0161969 A1, May 26, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B65D 25/14 (2006.01); C23C 16/04 (2006.01); C23C 16/507 (2006.01); A61M 5/31 (2006.01); C23C 16/30 (2006.01); C23C 16/36 (2006.01); C23C 16/40 (2006.01); A61J 1/05 (2006.01)
CPC B65D 25/14 (2013.01) [A61M 5/3129 (2013.01); C23C 16/045 (2013.01); C23C 16/30 (2013.01); C23C 16/36 (2013.01); C23C 16/401 (2013.01); C23C 16/507 (2013.01); A61J 1/05 (2013.01); A61M 2005/3109 (2013.01); A61M 2005/3131 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A vessel comprising:
a thermoplastic wall having an interior surface enclosing a lumen;
a barrier coating positioned between the interior surface of the thermoplastic wall and the lumen, and supported by the thermoplastic wall, the barrier coating being effective to reduce the ingress of atmospheric gas into the lumen compared to a vessel without the barrier coating; and
a passivation or pH protective coating positioned between the barrier coating and the lumen, and supported by the thermoplastic wall, the passivation or pH protective coating being effective to decrease the dissolution rate of the barrier coating;
in which the passivation or pH protective coating comprises SiOxCy, in which x is between 0.5 and 2.4 and y is between 0.6 and 3, and
an FTIR absorbance spectrum of the passivation or pH protective coating has a ratio greater than 0.75 between:
the maximum amplitude of the Si—O—Si symmetrical stretch peak between about 1000 and 1040 cm-1, and
the maximum amplitude of the Si—O—Si assymmetric stretch peak between about 1060 and about 1100 cm-1.