Porous membrane

Details Porous membrane Porous membrane

B - Operations, Transporting

01

D

18/16

B01D 69/02 (2006.01) B01D 67/00 (2006.01) B01D 69/06 (2006.01)

Patent

CA 1304897

Abstract of the Disclosure Disclosed is a porous membrane consisting of a film-forming polymer characterized in that: (a) in at least one surface thereof, pores extending in a direction substantially perpendicular to the membrane surface are present at a surface pore density of 20 to 80%, said pores having an average pore diameter within the range of 0.01 to 100 µm, a ratio of major to minor axis within the range of 1.0 to 2.0, and a coefficient of variation of pore diameter within the range of 0 to 50%; and (b) the overall porosity of said porous membrane is within the range of 20 to 90%.

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