Aromatic polyimide compositions of high solubility and their uses
    3.
    发明授权
    Aromatic polyimide compositions of high solubility and their uses 失效
    高溶解度的芳族聚酰亚胺组合物及其用途

    公开(公告)号:US4736015A

    公开(公告)日:1988-04-05

    申请号:US435153

    申请日:1982-10-19

    CPC分类号: C08G73/10

    摘要: Aromatic polyimide compositions, useful in particular for manufacturing adhesive materials, varnishes and films withstanding high temperatures, having a high solubility in organic solvents, particularly polar solvents and which are manufactured by reacting, in such a solvent, a tetraester or diacid-diester of benzhydrol 3,3', 4, 4' tetracarboxylic acid with an aromatic diamine for a sufficient time to obtain a polycondensation reaction product having an inherent viscosity at 30.degree. C., at a concentration of 5 g/liter in N-methyl pyrrolidone, ranging from 0.1 to 2 dl/g.

    摘要翻译: 芳族聚酰亚胺组合物,特别用于制造粘合剂材料,耐高温清漆和薄膜,在有机溶剂特别是极性溶剂中具有高溶解度,并且通过在这种溶剂中使二苯甲酮的四酯或二酸二酯 3,3',4,4'-四羧酸与芳族二胺反应足够的时间,得到在30℃下的特性粘度,在N-甲基吡咯烷酮中浓度为5g /升的缩聚反应产物,其范围 为0.1〜2d / g。