US 12,419,997 B2
Ostomy bag with a slippery surface
Tak-Sing Wong, University Park, PA (US); Jing Wang, University Park, PA (US); and Birgitt Boschitsch, University Park, PA (US)
Assigned to The Penn State Research Foundation, University Park (PA)
Filed by The Penn State Research Foundation, University Park, PA (US)
Filed on Oct. 29, 2020, as Appl. No. 17/083,863.
Application 17/083,863 is a continuation of application No. PCT/US2019/031408, filed on May 9, 2019.
Claims priority of provisional application 62/671,054, filed on May 14, 2018.
Prior Publication US 2021/0052784 A1, Feb. 25, 2021
Int. Cl. A61L 31/14 (2006.01); A61F 5/445 (2006.01); A61L 31/10 (2006.01); C08G 77/24 (2006.01)
CPC A61L 31/14 (2013.01) [A61F 5/445 (2013.01); A61L 31/10 (2013.01); C08G 77/24 (2013.01); A61L 2400/10 (2013.01); A61L 2420/02 (2013.01); A61L 2420/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A substrate having a surface, the surface being an untreated surface, the substrate comprising:
a layer of polyphenol formed on the surface;
a silanization layer formed directly on the polyphenol layer, the silanization layer comprising an array of straight-chain polysiloxanes having ends anchored to the polyphenol layer and opposite ends extending away from the polyphenol layer; and
a lubricant disposed over the silanization layer.