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https://drivepatents.com/patents/1071121 · 4 Jan 2006
The present invention provides solid alkaline fuel cells comprising anion exchange membranes which comprise diamines or polyamines coupled to a support polymer via a sulfonamide linkage. At least one nitrogen atom of the diamine or polyamine is a quaterniz...
https://drivepatents.com/patents/1097006 · 9 Apr 2003
A method for producing a thermoplastic resin micro-porous film wherein a thermoplastic resin and a solvent (A) are melted and kneaded together to prepare a solution, the solution is extruded and cooled to prepare a formed product in a gel state, and the re...