Polyamide acid composition and method for producing same, polyimide film, laminate and method for producing same, and flexible device

Abstract

A polyamide acid composition contains a polyamide acid having a terminal structure represented by a general formula (1), a polyamide acid having a terminal structure represented by a general formula (2), and a polyamide acid having a terminal structure represented by a general formula (3): wherein X is a tetravalent organic group which is a tetracarboxylic acid dianhydride residue, Y is a divalent organic group which is a diamine residue, and Z is a divalent organic group which is an acid anhydride residue. A polyimide film is obtained by applying a solution of a polyamide acid on a substrate, and cyclodehydrating the polyamide acid by heating.

Dependencies are inferred from the claim text.