Fluoropolymer membrane

Details Fluoropolymer membrane Fluoropolymer membrane

B - Operations, Transporting

01

D

B01D 69/12 (2006.01) B01D 39/16 (2006.01) B01D 67/00 (2006.01) B01D 69/02 (2006.01) B01D 71/32 (2006.01) B01D 71/36 (2006.01) B29C 55/00 (2006.01) C08J 5/18 (2006.01) C08L 27/18 (2006.01)

Patent

CA 2494545

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 memebrane in a dimension different from, e.g., perpendicular to, its thickness dimension.

L'invention concerne une membrane fluropolymère poreuse comprenant une première surface, une seconde surface, des noeuds ainsi que des fibrilles libres, dans laquelle une des première et seconde surfaces présente un nombre supérieur de fibrilles libres, par aire unitaire de la surface, à celui des première et seconde surfaces. L'invention concerne également un procédé de préparation de membranes fluoropolymères poreuses consistant à diviser une membrane plus épaisse en une dimension différente de sa dimension d'épaisseur, par exemple perpendiculaire à celle-ci.

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