US 12,173,125 B2
Methods of making polytetrafluoroethylene/polymer composites and uses thereof
Lih-Sheng Turng, Madison, WI (US); Yiyang Xu, Madison, WI (US); and Dongfang Wang, Madison, WI (US)
Assigned to Wisconsin Alumni Research Foundation, Madison, WI (US)
Filed by Wisconsin Alumni Research Foundation, Madison, WI (US)
Filed on Jan. 16, 2020, as Appl. No. 16/744,497.
Prior Publication US 2021/0221961 A1, Jul. 22, 2021
Int. Cl. C08J 3/00 (2006.01); A61K 31/618 (2006.01); A61K 47/32 (2006.01); A61K 47/34 (2017.01); A61L 27/16 (2006.01); A61L 27/18 (2006.01); A61L 27/26 (2006.01); A61L 27/48 (2006.01); A61L 27/50 (2006.01); A61L 27/54 (2006.01); A61L 27/56 (2006.01); A61L 27/58 (2006.01); B29C 48/00 (2019.01); B29C 48/92 (2019.01); C08J 9/26 (2006.01); C08J 9/28 (2006.01); C08L 27/18 (2006.01); B29K 27/18 (2006.01)
CPC C08J 3/005 (2013.01) [A61K 31/618 (2013.01); A61K 47/32 (2013.01); A61K 47/34 (2013.01); A61L 27/16 (2013.01); A61L 27/18 (2013.01); A61L 27/26 (2013.01); A61L 27/507 (2013.01); A61L 27/54 (2013.01); A61L 27/56 (2013.01); A61L 27/58 (2013.01); B29C 48/0012 (2019.02); B29C 48/0018 (2019.02); B29C 48/022 (2019.02); B29C 48/023 (2019.02); C08J 9/26 (2013.01); C08J 9/283 (2013.01); C08L 27/18 (2013.01); A61L 27/48 (2013.01); A61L 2300/414 (2013.01); B29K 2027/18 (2013.01); C08J 2201/046 (2013.01); C08J 2201/0462 (2013.01); C08J 2207/10 (2013.01); C08J 2327/18 (2013.01); C08J 2467/04 (2013.01); C08J 2475/04 (2013.01); C08L 2201/06 (2013.01); C08L 2203/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A process for preparing a polytetrafluoroethylene (PTFE)/polymer composite product, the process comprising: dissolving a polymer with a solvent to form a polymer solution; immersing a PTFE material into the polymer solution to uniformly coat the PTFE material with the polymer solution; evaporating the solvent from the PTFE/polymer solution by heating the PTFE/polymer solution to a temperature of from 60° C. to about 200° C. for a period of from about 0.5 minutes to about 120 minutes to form a PTFE/polymer blend; adding a lubricant to the PTFE/polymer blend; and extruding the PTFE/polymer blend.