Patent Number: 6,254,978

Title: Ultra-thin integral composite membrane

Abstract: An integral composite membrane is provided including a porous polymeric membrane impregnated with a perfluoro ion exchange material to make the micropores of the membrane occlusive and a surfactant having a molecular weight greater than 100 wherein the thickness of the composite membrane is less than 0.025 mm. Methods for making and regenerating the integral composite membrane are also provided.

Inventors: Bahar; Bamdad (Baltimore, MD), Hobson; Alex R. (Elkton, MD), Kolde; Jeffrey A. (Coopersburg, PA)

Assignee: W. L. Gore & Associates, Inc.

International Classification: B32B 5/18 (20060101); C08J 5/20 (20060101); C08J 5/22 (20060101); C25B 13/00 (20060101); C25B 13/08 (20060101); H01M 2/16 (20060101); H01M 8/10 (20060101); B32B 005/14 (); C25B 013/08 ()

Expiration Date: 07/03/2018