Process of making a polyvinylidene difluoride membrane
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United States of America Patent
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Aug 29, 2000
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app pub date -
Aug 20, 1998
filing date -
Jan 22, 1996
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Abstract
The present invention relates to the field synthetic polymeric membrane materials formed from casting polyvinylidene difluoride (PVDF) polymer solutions and/or dispersions. Membranes formed in accordance with the present invention are all highly porous. Both internally isotropic membranes and highly asymmetric PVDF membranes are disclosed. The membranes of the invention are useful in a variety of microfiltration and ultrathin applications.
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