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Title: Microporous polymer films and methods of their production

A process for producing thin microporous polymeric films for a variety of uses. The process utilizes a dense gas (liquified gas or supercritical fluid) selected to combine with a solvent-containing polymeric film so that the solvent is dissolved in the dense gas, the polymer is substantially insoluble in the dense gas, and two phases are formed. A microporous film is obtained by removal of a dense gas-solvent phase.
Inventors:
 [1]
  1. (Albuquerque, NM)
Issue Date:
OSTI Identifier:
869918
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
Patent Number(s):
US 5422377
Contract Number:
AC04-76DP00789
Research Org:
AT & T CORP
Country of Publication:
United States
Language:
English
Subject:
microporous; polymer; films; methods; production; process; producing; polymeric; variety; utilizes; dense; gas; liquified; supercritical; fluid; selected; combine; solvent-containing; film; solvent; dissolved; substantially; insoluble; phases; formed; obtained; removal; gas-solvent; phase; dense gas; microporous polymeric; polymer films; liquified gas; solvent phase; polymeric film; process utilizes; polymer film; supercritical fluid; substantially insoluble; containing polymer; containing poly; microporous polymer; polymeric films; porous polymer; porous film; containing polymeric; /521/

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