Composite porous film for fluid separation, method for manufacturing the same and filter
AssigneesJnc Petrochemical Corporation, Jnc Corporation
InventorsKazuyuki Sakamoto, Osamu Kojima, Osamu Yamaguchi
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Abstract
An objective of the invention disclosure is to provide a composite porous film that has both a sufficient chemical resistance and strength allowing suppression of heat deflection under a liquid at a high temperature, and a filter using the same; the composite porous film for fluid separation to be provided according to the invention includes a fluoropolymer resin and a SiO2 glass.
Claims10
A composite porous film for fluid separation, comprising a fluoropolymer resin and a SiO2 glass.
A method for manufacturing a composite porous film for fluid separation, wherein a coating film of a silica precursor is formed at least on one side of a microporous film including a fluoropolymer resin, and then applying at least one of treatment selected from heat treatment and steam treatment to convert the silica precursor into a SiO2 glass, and thus a SiO2 glass layer is formed at least on one side of the microporous film, and a composite porous film coated with the SiO2 glass is obtained.
Dependencies are inferred from the claim text.