Large pore synthetic polymer membranes

Details Large pore synthetic polymer membranes Large pore synthetic polymer membranes

1997-06-11

1999-11-09

Fortuna, Ana

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050034, 21050038, 2105004, 21050041, 21050043, 422 56, 436531, B01D 2900

Patent

active

059796707

ABSTRACT:
Highly asymmetric polymeric membranes with large pores which yield bubble points in the range of 0.5 to 25 psid and superior flow characteristics. The membranes can be cast from both metastable dispersions and from homogenous casting formulations. The technique of synthesis involves exposure of the cast membrane to humid air to create large surface pores on the exposed side.

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