Liquid purification or separation – Filter – Material
Patent
1991-05-15
1992-09-01
Sever, Frank
Liquid purification or separation
Filter
Material
21050041, 21050042, 264 451, 264DIG48, 264DIG12, B01D 6700, B01D 7156, B01D 7168
Patent
active
051436167
ABSTRACT:
A composite structure, particularly a filter structure, is provided comprising a support having a surface and a porous membrane formed integrally to the surface of the support. The support preferably includes means for directing a fluid away from the surface of the support. The support surface is at least slightly soluble in a solvent. The porous membrane comprises a resin soluble in the solvent and precipitated while the casting solution is in contact with a porous substrate and the surface of the support. The membrane is formed and integrally secured to the surface of the support contemporaneously.
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Geibel Stephen A.
Pall David B.
Pall Corporation
Sever Frank
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