Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Linda Mae Rivard0
George Gower Innes Moore0
Harold Todd Freemyer0
Steven Joseph Hamrock0
Date of Patent
March 25, 2008
0Patent Application Number
103252780
Date Filed
December 19, 2002
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A polymer electrolyte membrane is provided having a thickness of 90 microns or less and comprising a polymer, said polymer comprising a highly fluorinated backbone and recurring pendant groups according to the formula:YOSO2—CF2—CF2—CF2—CF2—O-[polymer backbone] (I)where Y is H+ or a monovalent cation such as an alkali metal cation. Typically, the membrane is a cast membrane. Typically, the polymer has a hydration product of greater than 22,000. Typically, the polymer has an equivalent weight of 800-1200.
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