Liquid purification or separation – Filter – Material
Patent
1996-05-01
1997-12-09
Fortuna, Ana
Liquid purification or separation
Filter
Material
21050027, 210490, 21050036, 2105004, 21050041, 428288, B01D 3900
Patent
active
056956401
ABSTRACT:
A hydrophilic porous article is provided. The article comprises a hydrophobic porous substrate having coated on at least one external surface and on the internal surface a polyamide. Also provided is a method for making the hydrophilic porous article comprising forming a solvent solution of polyarnide in calcium chloride and methanol; treating a hydrophobic porous substrate by applying the solution to the substrate; rinsing the treated substrate with water to remove the calcium chloride and methanol; and drying the treated substrate.
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Fortuna Ana
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Tamte Roger R.
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