申请人:UBE INDUSTRIES, LTD.
公开号:EP0304913A2
公开(公告)日:1989-03-01
A terminal-modified imide oligomer having an unsaturated group as a terminal group and an imide bond inside of the oligomer which is produced by reacting 2,3,3′,4′-or 3,3′,4,4′-biphenyltetracarboxylic acid or its derivative, a diamine compound, and an unsaturated dicarboxylic acid or its derivative and/or an unsaturated monoamine in an organic solvent is disclosed. This oligomer has a logarithmic viscosity of not more than 1.0. This logarithmic viscosity is measured under the conditions of concentration of 0.5 g/100 mℓ-solvent (N-methyl-2-pyrrolidone) and a temperature of 30°C, and has a melting point of 50 to 300°C.
本发明公开了一种末端改性的酰亚胺低聚物,它具有一个不饱和基团作为末端基团,低聚物内部有一个酰亚胺键,该低聚物是由 2,3,3′,4′ 或 3,3′,4,4′- 联苯四羧酸或其衍生物、二胺化合物和不饱和二羧酸或其衍生物和/或不饱和单胺在有机溶剂中反应生成的。这种低聚物的对数粘度不超过 1.0。该对数粘度是在浓度为 0.5 g/100 mℓ 溶剂(N-甲基-2-吡咯烷酮)和温度为 30°C 的条件下测得的,熔点为 50 至 300°C。