US 11,654,241 B2
Fluoropolymer barrier material for containers
Edgar G. Ashmead, Lincoln University, PA (US); Edward C. Gunzel, Oxford, PA (US); and Michael Moritz, Philadelphia, PA (US)
Assigned to W. L. Gore & Associates, Inc., Newark, DE (US)
Filed by W.L. Gore & Associates, Inc., Newark, DE (US)
Filed on May 12, 2021, as Appl. No. 17/318,255.
Application 17/318,255 is a continuation of application No. 16/600,605, filed on Oct. 14, 2019, abandoned.
Application 16/600,605 is a continuation of application No. 15/425,075, filed on Feb. 6, 2017, granted, now 10,478,563.
Application 15/425,075 is a continuation of application No. 13/117,573, filed on May 27, 2011, granted, now 9,597,458, issued on Mar. 21, 2017.
Application 13/117,573 is a continuation in part of application No. 12/915,850, filed on Oct. 29, 2010, granted, now 8,722,178, issued on May 13, 2014.
Claims priority of provisional application 61/256,156, filed on Oct. 29, 2009.
Prior Publication US 2021/0260299 A1, Aug. 26, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/315 (2006.01); A61M 5/31 (2006.01); A61M 5/32 (2006.01)
CPC A61M 5/31513 (2013.01) [A61M 5/3202 (2013.01); A61M 2005/3118 (2013.01); A61M 2005/3131 (2013.01); A61M 2207/00 (2013.01); Y10T 156/1043 (2015.01); Y10T 428/1321 (2015.01); Y10T 428/1352 (2015.01); Y10T 428/1359 (2015.01); Y10T 428/1376 (2015.01); Y10T 428/24992 (2015.01); Y10T 428/3154 (2015.04)] 7 Claims
 
1. A stopper comprising:
an elastomeric body;
a thermoplastic polymer positioned adjacent to the elastomeric body;
an expanded fluoropolymer positioned on a side of the thermoplastic polymer opposing the elastomeric body,
wherein the thermoplastic polymer is at least partially imbibed into the expanded fluoropolymer.