Abstract: A composite membrane and moisture adjustment module using the same is disclosed. The composite membrane includes a moisture-permeable resin layer interposed between porous membranes that constitute a pair; and the mean thickness of the moisture-permeable resin layer is 5 ?m or less.

Abstract: The problem to be solved by the present invention is to provide a filter medium for a water treatment filter having contradictory characteristics, that is, hydrophilicity and chemical resistance, and a long life, and to provide the production method thereof. A filter medium for a water treatment filter according to the present invention is characterized in comprising a porous base material having a hydrophilic coating layer; wherein the hydrophilic coating layer has a cross-linked hydrophilic polymer and a high electron density part; a hydrophilic polymer in the cross-linked hydrophilic polymer is cross-linked with an aliphatic saturated hydrocarbon group which may contain one or more functional groups selected from a group consisting of an ether group, a hydroxy group and an amino group; the high electron density part has ? electrons; and the high electron density part is covalently bonded to the cross-linked hydrophilic polymer.

Abstract: A composite membrane and moisture adjustment module using the same is disclosed. The composite membrane includes a moisture-permeable resin layer interposed between porous membranes that constitute a pair; and the mean thickness of the moisture-permeable resin layer is 5 ?m or less.

Abstract: A molded product including a film bonded to a resin frame is produced by a method including: 1) reinforcing the film with a solvent-soluble or solvent-disintegrable reinforcing layer; 2) inserting the reinforced film in an injection mold; 3) feeding a resin to the mold to attach a frame body to the reinforced film while injection molding the resin frame; and 4) treating the resulting injection molded product with a solvent to remove the reinforcing layer. This production process can establish a technique capable of bonding (integrally molding) the film solely to the frame body, regardless of the size of the film. The film may preferably be an expanded porous polytetrafluoroethylene film, and the moisture-permeable resin may preferably be combined with the expanded porous polytetrafluoroethylene film.

Abstract: The problem to be solved by the present invention is to provide a filter medium for a water treatment filter having contradictory characteristics, that is, hydrophilicity and chemical resistance, and a long life, and to provide the production method thereof. A filter medium for a water treatment filter according to the present invention is characterized in comprising a porous base material having a hydrophilic coating layer; wherein the hydrophilic coating layer has a cross-linked hydrophilic polymer and a high electron density part; a hydrophilic polymer in the cross-linked hydrophilic polymer is cross-linked with an aliphatic saturated hydrocarbon group which may contain one or more functional groups selected from a group consisting of an ether group, a hydroxy group and an amino group; the high electron density part has ? electrons; and the high electron density part is covalently bonded to the cross-linked hydrophilic polymer.

Abstract: A molded product including a film bonded to a resin frame is produced by a method including: 1) reinforcing the film with a solvent-soluble or solvent-disintegrable reinforcing layer; 2) inserting the reinforced film in an injection mold; 3) feeding a resin to the mold to attach a frame body to the reinforced film while injection molding the resin frame; and 4) treating the resulting injection molded product with a solvent to remove the reinforcing layer. This production process can establish a technique capable of bonding (integrally molding) the film solely to the frame body, regardless of the size of the film. The film may preferably be an expanded porous polytetrafluoroethylene film, and the moisture-permeable resin may preferably be combined with the expanded porous polytetrafluoroethylene film.

Abstract: The invention aims at providing an air filter which is improved in the tight adhesion between an ePTFE membrane and a permeable support material without impairing the mechanical strength and permeability of the support material. An air filter produced by laminating a permeable support material (1) having a region wherein fibers different in fiber diameter are entangled and a porous polytetrafluoroethylene membrane (2), wherein the mean fiber diameter of the membrane-side face of the support material (1) is smaller than that of the back of the support material (1).

Abstract: A composite membrane and moisture adjustment module using the same is disclosed. The composite membrane includes a moisture-permeable resin layer interposed between porous membranes that constitute a pair; and the mean thickness of the moisture-permeable resin layer is 5 ?m or less.

Abstract: A membrane 12 that exhibits superior condensation resistance regardless of the type of moisture-permeable resin, that has satisfactory adhesion between a porous film and a reinforcing member, and that can be manufactured in a simple manner. The membrane 12 is a laminated article 23 containing a porous film 20 and a reinforcing member 40, and the reinforcing member 40 has a moisture-permeable resin layer 30 on the side of an interface 50 with the porous film 20. To reliably form the moisture-permeable resin layer (moisture-permeable resin film) 30, the average pore diameter of the porous film 20 is preferably 0.01 to 10 ?m, and the porosity of the reinforcing member 40 is preferably 30 to 95%. According to the membrane 12 of the present invention, even if the moisture-permeable resin is water-soluble (for example, polyvinyl alcohol), condensation resistance is still satisfactory.

Abstract: A membrane 12 that exhibits superior condensation resistance regardless of the type of moisture-permeable resin, that has satisfactory adhesion between a porous film and a reinforcing member, and that can be manufactured in a simple manner. The membrane 12 is a laminated article 23 containing a porous film 20 and a reinforcing member 40, and the reinforcing member 40 has a moisture-permeable resin layer 30 on the side of an interface 50 with the porous film 20. To reliably form the moisture-permeable resin layer (moisture-permeable resin film) 30, the average pore diameter of the porous film 20 is preferably 0.01 to 10 ?m, and the porosity of the reinforcing member 40 is preferably 30 to 95%. According to the membrane 12 of the present invention, even if the moisture-permeable resin is water-soluble (for example, polyvinyl alcohol), condensation resistance is still satisfactory.