Hydrophilic porous membrane and process for preparing the same

Details Hydrophilic porous membrane and process for preparing the same Hydrophilic porous membrane and process for preparing the same

1990-05-14

1992-06-09

Foelak, Morton

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050029, 21050042, 427245, 521 54, B01D 2900

Patent

active

051204401

ABSTRACT:
There is disclosed a hydrophilic porous membrane in which a mixture composed of a surfactant, a hydrophilic polymer which is insoluble to water and alcohol, and a water soluble polymer is retained on the surface of a hydrophobic porous membrane material and/or at inner surface of pores and the surfactant is retained by the hydrophilic polymer.
By taking the above constitution, a hydrophilic porous membrane which is restrained in dissolution and generation of foaming and is excellent in safety can be obtained.

REFERENCES:
patent: 4203847 (1980-05-01), Grandine
patent: 4413074 (1983-11-01), Wrasidlo et al.
patent: 4432875 (1984-02-01), Wrasidlo et al.

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