A synthetic, non-composited microporous membrane comprises a continuous array of crystalline molecular sieve material. A method is also provided for the preparation of the membrane, and methods are provided for using the membrane as a catalyst, or as a non-catalytic separation membrane for liquid or...http://www.google.ca/patents/US5019263?utm_source=gb-gplus-sharePatent US5019263 - Membrane composed of a pure molecular sieve
