Supported microporous membrane

Details Supported microporous membrane Supported microporous membrane

1993-06-25

1994-12-27

Dawson, Robert A.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050042, 210489, 210506, B01D 2900

Patent

active

053762738

ABSTRACT:
Microporous membranes having supporting structures are disclosed. A microporous filtration membrane made of a polymeric material has an integral support, both the support and the membrane having substantially identical chemical composition. Preferred supported membranes of the present invention are made of polyvinylidene fluoride. At least part of the support is bonded to the surrounding microporous membrane to provide rigidity and chemical inertness. Methods of forming the supported microporous membranes are described, including a method that results in microporous membranes having unique structural and functional characteristics.

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patent: 5096637 (1992-03-01), DiLeo et al.

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