Process for producing molded product, and heat-exchange membrane element

摘要

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.

主权项

1. A process for producing a molded product comprising a film bonded to a resin frame body, said process comprising:
reinforcing the film with a solvent-soluble or solvent-disintegrable reinforcing layer; inserting the reinforced film in an injection mold; feeding a resin to the mold to attach a frame body to the reinforced film while injection molding the resin frame; and treating the resulting injection molded product with a solvent to remove the reinforcing layer wherein the film is a porous expanded polytetrafluoroethylene film.