METHOD FOR PRODUCTION OF ADHESIVE RESIN COMPOSITION, RESIN FILM, AND LAMINATE

摘要

Disclosed are: a method for producing an adhesive resin composition; a resin film; and a laminate. The method is characterized by kneading a saturated polyester resin having a melt index of 10 to 500 g/10 minutes and a thermoplastic resin which is different from the saturated polyester resin and has a melt index of 1.5 to 20 g/10 minutes by using a twin-screw extruder, wherein the ratio of the total length (Ls) and the effective screw length (La) of a kneading screw part (i.e., an Ls/La ratio) is 0.20 to 0.45, and wherein the preset average cylinder temperature in the first kneading step is lower than that in the second kneading step. The resin film is produced by processing an adhesive resin composition produced by the method. The laminate comprises two or more materials bound together through an adhesive layer, wherein the adhesive layer comprises the resin film.