Hydrophilic membranes
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United States of America Patent
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May 11, 1993
Grant Date -
N/A
app pub date -
Jun 19, 1992
filing date -
Jun 19, 1992
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Abstract
Normally hydrophobic fluoropolymer porous membranes having continuous pores are rendered hydrophilic by coating the pore interior with a mixture of at least one fluoroaliphatic surfactant and at least one hydrophilic but substantially water-insoluble polyurethane.
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