Patent ID: 7674349

Claim:
A method for continuous production of a functional membrane, characterized in comprising: an impregnating/depositing step for continuously conveying a porous resin sheet and causing a polymer precursor containing a monomer having a functional group to be impregnated into and deposited on the porous resin sheet; a polymerization step for continuously feeding and bringing into contact a first resin film to one side of the precursor-impregnated/deposited sheet comprising the porous resin sheet into which the polymer precursor is impregnated and deposited, continuously feeding and bringing into contact a second resin film to the other side of the precursor-impregnated/deposited sheet, and polymerizing the polymer precursor in a state in which the precursor-impregnated/deposited sheet is sandwiched between the first resin film and the second resin film to generate a polymer; a film peeling step for peeling the first resin film and second resin film from the polymer-filled/deposited sheet in which the polymer is filled into and deposited on the porous resin sheet; and a polymer removal step for removing the polymer deposited on the surface of the polymer-filled/deposited sheet, wherein the polymer-filled/deposited sheet forming the functional membrane has been added after polymer-filled/deposited sheet.