Porous film, method for manufacturing the same, gas...

Details Porous film, method for manufacturing the same, gas... Porous film, method for manufacturing the same, gas...

B - Operations, Transporting

01

D

B01D 67/00 (2006.01) B01D 69/00 (2006.01) B01D 69/02 (2006.01) B26F 1/24 (2006.01) B29C 59/04 (2006.01)

Patent

CA 2069703

A gas permeability control film having a barrier property against water, bacteria, and viruses, an oxygen gas permeation amount controlled to fall within the range of 103 to 107 cc/m2?24 hours?25°C, and a controlled carbon dioxide gas permeation amount. The gas permeability control film has an organic film in which non-through pores having an average opening width falling within the range of 0.5 µm to 150 µm are formed at a density of 500 to 200,000 pores/cm2.

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