AROMATIC POLYAMIDE SOLUTION FOR USE IN MANUFACTURE OF ELEMENT FOR DISPLAYS, OPTICAL ELEMENT, LIGHTING ELEMENT OR SENSOR ELEMENT

摘要

In one embodiment, the present disclosure relates to a polyamide solution comprising an aromatic polyamide and a solvent, wherein the aromatic polyamide is composed of at least two types of constituent units. With respect to the polyamide solution, the change ratio between a coefficient of thermal expansion (CTE) of a cast film, which is manufactured by casting the polyamide solution on a glass plate, and a CTE of the cast film after being subjected to a heat treatment at 200 to 450°C (i.e., (CTE after the heat treatment)/(CTE before the heat treatment)) is 1.3 or less.