用来制造显示用元件、光学用元件或照明用元件之芳香族聚醯胺溶液;SOLUTION OF AROMATIC POLYAMIDE FOR PRODUCING DISPLAY ELEMENT, OPTICAL ELEMENT, OR ILLUMINATION ELEMENT

摘要

本揭示，于一或多数实施形态系关于能抑制浇铸膜之Rth的聚醯胺溶液。本揭示，于一或多数实施形态系关于一种聚醯胺溶液，包含芳香族聚醯胺与溶剂，前述芳香族聚醯胺由至少2个重复单元构成，前述重复单元之至少1个具有1个以上的游离羧基，且于玻璃板上制作浇铸膜后之膜于30℃之弹性系数为5.0GPa以下，线膨胀系数(CTE)超过30.0ppm/K。; and a solvent; wherein elastic modulus at 30.0°C of a cast film formed by applying the solution onto a glass plate is 5.0 GPa or less, and coefficient of thermal expansion (CTE) of the cast film is more than 30 ppm/K, and wherein the aromatic copolyamide comprises at least two repeat units, and at least one of the repeat units has one or more free carboxyl groups.