含有聚醯亚胺粉体消光剂之多层聚醯亚胺膜及其制造方法;MULTILAYERED POLYIMIDE FILM INCORPORATING POLYIMIDE POWDER DELUSTRANT, AND MANUFACTURE THEREOF

摘要

一种多层聚醯亚胺膜，系包括至少两层之聚醯亚胺层相互堆叠，其中，各聚醯亚胺层系包含聚醯亚胺高分子聚合物，其系由实质上等莫耳比例之二胺化合物及二酐化合物反应而形成，且至少一层之聚醯亚胺层还包含聚醯亚胺粉体，其分布于该聚醯亚胺高分子聚合物中。于该至少一层中，以该层之总重量为基础，该聚醯亚胺粉体之比例为约20至50 wt%。该多层聚醯亚胺膜之至少一表面之60度光泽值为约5以下。本发明之实施例亦包含制备该聚醯亚胺膜及该聚醯亚胺粉体之方法。 A multilayered polyimide film includes at least two polyimide layers stacked on each other, wherein each of the polyimide layers includes a polyimide base polymer formed by reacting diamine with dianhydride components in substantially equal molar ratio, and at least one polyimide layer further includes polyimide powder distributed in the polyimide base polymer, the polyimide powder having a weight ratio between about 20 and about 50 wt% of the total weight of the layer in which it is incorporated. The multilayered polyimide film has a 60°