Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Walter Navarrini0
Aldo Sanguineti0
Bruno Scrosati0
Stefania Panero0
Date of Patent
April 27, 2010
0Patent Application Number
104230270
Date Filed
April 25, 2003
0Patent Primary Examiner
Patent abstract
A process for preparing membranes formed by (per) fluorinated ionomeric electrolytes salified with the lithium ion, comprising the following steps:a) obtaining of (per) fluorinated polymer membranes, containing —SO2F groups;b) partial or complete salification of (per)fluorinated polymer membranes containing —SO2F groups with basic lithium compounds and final washing with water;c) swelling and contemporaneous drying process of membranes by dipping in a heterogeneous biphasic system of a dipolar aprotic solvent wherein insoluble solid drying agents are dispersed.
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