US 12,152,117 B2
Composite ion exchange membranes and methods of making the same
Chockkalingam Karuppaiah, Fremont, CA (US); Gokul Venugopalan, Fremont, CA (US); Arne Ballantine, Incline Village, NV (US); and Jason Hixson, Soddy Daisy, TN (US)
Assigned to Ohmium International, Inc., Newark, CA (US)
Filed by Ohmium International, Inc., Newark, CA (US)
Filed on Nov. 14, 2023, as Appl. No. 18/509,078.
Claims priority of provisional application 63/425,224, filed on Nov. 14, 2022.
Prior Publication US 2024/0158937 A1, May 16, 2024
Int. Cl. C08J 5/22 (2006.01); B32B 3/26 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 37/06 (2006.01); B32B 37/10 (2006.01); B32B 37/18 (2006.01); C25B 13/02 (2006.01); C25B 13/08 (2006.01)
CPC C08J 5/2281 (2013.01) [B32B 3/266 (2013.01); B32B 27/08 (2013.01); B32B 27/322 (2013.01); B32B 37/06 (2013.01); B32B 37/10 (2013.01); B32B 37/182 (2013.01); C25B 13/02 (2013.01); C25B 13/08 (2013.01); B32B 2250/24 (2013.01); B32B 2305/026 (2013.01); B32B 2307/7242 (2013.01); B32B 2307/7376 (2023.05); B32B 2327/18 (2013.01); C08J 2327/18 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for making a composite ion exchange membrane, the method comprising:
providing a gas-blocking membrane including a first side and a second side opposite to the first side;
forming pores or channels in the gas-blocking membrane;
coating an ion-conducting membrane resin onto the first side of the gas-blocking layer and onto the second side of the gas-blocking layer, thereby forming the composite ion exchange membrane.