Method for manufacturing transparent heat resistant laminated film, transparent heat resistant laminated film, flexible printed circuit board, flexible display substrate, front panel for flexible display, LED lighting device and organic electroluminescent display device

摘要

An object of the present invention is to provide a method for producing a transparent heat resistant laminated film having low haze and high light transmittance. The manufacturing method of the transparent heat resistant laminated film of this invention is the process of preparing two types of dope from which at least prescription differs, respectively dissolving a transparent heat resistant resin in a solvent, and at least 2 types of dope different from the said at least prescription on a support body. A method for producing a transparent heat-resistant laminated film having a step of covalently forming a flexible film by forming a flexible film and a step of peeling the flexible film from the support, wherein a low boiling point solvent having a boiling point of 80 ° C. or less is used as the main solvent. It is done.