Microporous asymmetric polyfluorocarbon membranes

Details Microporous asymmetric polyfluorocarbon membranes Microporous asymmetric polyfluorocarbon membranes

B - Operations, Transporting

01

D

154/90.4

B01D 69/12 (2006.01) B01D 67/00 (2006.01) B01D 71/32 (2006.01) B01D 71/36 (2006.01)

Patent

CA 1333469

Novel microporous, asymmetric, integral, composite polyfluorocarbon, e.g., polytetrafluoroethylene, membranes are disclosed. These membranes are made up of two or more sheets of microporous fluorocarbon polymer having different average pore sizes, arranged to provide an increasing gradation in average pore size from one surface of the membrane to the other, and are useful as microfilters for removing fine particle contaminants, including bacteria, from fluids such as those encountered in the electronics and pharmaceutical industries.

558032

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