Process for preparing microporous membranes
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United States of America Patent
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Oct 16, 1990
Grant Date -
N/A
app pub date -
Sep 26, 1988
filing date -
Sep 26, 1988
priority date (Note) -
Expired
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Abstract
A process for preparing microporous membranes by coextruding a melt of a plurality of interdigitated layers of at least two polymers, one having preferential solubility over the other, dividing and reorienting the layers of said melt into discrete domains of random orientation, forming a thin membrane or like article and leaching the preferentially soluble polymer out of the resulting article.
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