Method for drying porous ultrafiltration membranes
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United States of America Patent
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Jan 31, 1995
Grant Date -
N/A
app pub date -
May 10, 1993
filing date -
Jun 23, 1992
priority date (Note) -
Expired
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Abstract
A method for drying porous ultrafiltration membranes by the use of heat and possibly also at reduced pressure is characterized in that prior to the application of heat the pores of the membranes are at least partially filled with a solution of a water-soluble organic solid which swells the membranes and which has a melting point above 35.degree. C. in an organic solvent which is completely miscible with water and which does not change the membrane structure.
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