The present invention provides a tetracarboxylic acid diester compound shown by the following general formula (1),
wherein X1 represents a tetravalent organic group; and R1 represents a group shown by the following general formula (2),
wherein the dotted line represents a bond; Y1 represents an organic group with a valency of k+1; "k" represents 1 or 2; and "n" represents 0 or 1. There can be provided a tetracarboxylic acid diester compound that can give a polyimide precursor polymer soluble in a safe organic solvent widely used as a solvent of a composition and usable as a base resin of a photosensitive resin composition.
本发明提供了一种四
羧酸二酯化合物,其通式如下(1)、
其中 X1 代表四价有机基团;R1 代表下式通式(2)所示的基团、
其中虚线代表键;Y1 代表价数为 k+1 的有机基团;"k "代表 1 或 2;"n "代表 0 或 1。本发明提供了一种四
羧酸二酯化合物,它可以得到一种可溶于广泛用作组合物溶剂的安全有机溶剂中的聚
酰亚胺前体聚合物,并可用作感光
树脂组合物的基
树脂。