Fluoropolymer membrane

Details Fluoropolymer membrane Fluoropolymer membrane

2008-05-27

2008-05-27

Fortuna, Ana (Department: 1797)

Liquid purification or separation

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Material

C210S500270, C210S490000, C156S247000, C264SDIG047

Reexamination Certificate

active

10524664

ABSTRACT:
A porous fluoropolymer membrane comprising a first surface, a second surface, nodes and free fibrils, wherein one of the first and second surfaces has a greater number of free fibrils per unit area of the surface than the other of the first and second surfaces, is disclosed. A process for preparing porous fluoropolymer membranes is also disclosed, comprising splitting a thicker membrane in a dimension different from, e.g., perpendicular to, its thickness dimension.

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