申请人:Eternal Materials Co., Ltd.
公开号:US10280334B2
公开(公告)日:2019-05-07
A polyimide (PI) having two —COOH capping groups at each end is provided. A coating composition is further provided, which contains the PI and a hardening agent having 2 to 6 functional groups capable of reacting with —COOH. A PI coating layer and PI film formed by the coating composition of the present invention possess excellent chemical resistance and coefficient of thermal expansion (CTE), which makes them applicable in fabrication of protective materials for active/passive devices, optical materials, touch panels, copper foil substrates, soft flexible electronic materials or integrated circuit elements, or film substrate for glass film touch panels.
提供了一种聚酰亚胺(PI),其两端各有两个-COOH封端基团。本发明还提供了一种涂层组合物,其中包含 PI 和一种具有 2 至 6 个能与 -COOH 反应的官能团的硬化剂。由本发明的涂层组合物形成的 PI 涂层和 PI 薄膜具有优异的耐化学性和热膨胀系数(CTE),因此适用于制造有源/无源器件的保护材料、光学材料、触摸面板、铜箔基板、软挠性电子材料或集成电路元件,或玻璃薄膜触摸面板的薄膜基板。