METHOD FOR PRODUCING DOPE FOR OPTICAL FILM, METHOD FOR PRODUCING OPTICAL FILM, OPTICAL FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

In order to provide a method for producing a dope for an optical film that enables an optical film having excellent transparency, heat resistance, humidity resistance, and processability to be produced, a method for producing a dope for an optical film comprising at least resin particles, and an acrylic resin and cellulose ester resin is disclosed. The method for producing a dope for an optical film comprises: a first mixing step in which a dispersion liquid for the resin particles and a surfactant are mixed to produce a mixture; and a second mixing step in which a resin composition comprising the acrylic resin and the cellulose ester resin at a mass ratio ranging from 95:5 to 30:70, a solvent, and the aforementioned mixture are mixed.