. . . "20100040874FILM FOR METAL FILM TRANSFER, METHOD FOR TRANSFERRING METAL FILM AND METHOD FOR MANUFACTURING CIRCUIT BOARD - Films for metal film transfer, which contain (a) a support layer, (b) a release layer formed on the support layer, which is comprised of one or more kinds of water-soluble polymers selected from a water-soluble cellulose resin, a water-soluble polyester resin, and a water-solubl" .