Abstract: An ultra-thin composite membrane is provided which includes a base material and an ion exchange resin. The base material is a membrane which is defined by a thickness of less than 1 mil (0.025 mm) and a microstructure characterized by nodes interconnected by fibrils, or a microstructure characterized by fibrils with no nodes present. The ion exchange resin substantially impregnates the membrane such that the membrane is essentially air impermeable.
Type:
Grant
Filed:
March 15, 1995
Date of Patent:
August 20, 1996
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Bamdad Bahar, Alex R. Hobson, Jeffrey A. Kolde, David Zuckerbrod