Patent ID: 9051429
Filing Date: 2015-06-09
Classification: B32B,C08G,C08K,C08L

Abstract:
1. A polyamic acid resin composition, comprising: a polyamic acid resin; and an additive, wherein the polyamic acid resin and the additive have a molar ratio of 1:0.1 to 1:0.5, wherein the additive comprises: an ester-phenol compound; an imidazole compound; and a heterocyclic aromatic amine compound other than the imidazole compound; wherein the ester-phenol compound is benzyl 4-hydroxybenzoate, methyl 4-hydroxybenzoate, or combinations thereof; wherein the imidazole compound is imidazole, benzimidazole, or combinations thereof; and wherein the heterocyclic aromatic amine compound is 4,4′-dipyridyl, 1, 10-phenanthroline, or combinations thereof; wherein the polyamic acid resin and the ester-phenol compound have a molar ratio of 1:0.01 to 1:0.1; wherein the polyamic acid resin and the imidazole compound have a molar ratio of 1:0.06 to 1:0.3; and wherein the polyamic acid resin and the heterocyclic aromatic amine compound have a molar ratio of 1:0.03 to 1:0.1.