Polyamide-imide polymer having an ordered structure
    1.
    发明授权
    Polyamide-imide polymer having an ordered structure 失效
    具有订购结构的聚酰亚胺聚合物

    公开(公告)号:US3852106A

    公开(公告)日:1974-12-03

    申请号:US84384869

    申请日:1969-07-22

    申请人: DU PONT

    发明人: INCREMONA J STRUGAR D

    IPC分类号: C08G18/38 C08G73/14 C08G20/32

    摘要: A film-forming polyamide-imide polymer and a process for making this polymer by reacting an anhydride of a tricarboxylic acid, a diamine, and an organic diisocyanate; the polymer having an ordered structure of recurring amide-imide-imide-amide linkages in the polymer chain and having the following recurring structural units: IN WHICH R is a trivalent aromatic radical, R1 and R2 are each divalent organic radicals having at least 2 carbon atoms.

    摘要翻译: 成膜聚酰胺酰亚胺聚合物和通过使三羧酸,二胺和有机二异氰酸酯的酸酐反应来制造该聚合物的方法; 所述聚合物在聚合物链中具有重复的酰胺 - 酰亚胺 - 酰胺键的有序结构并具有以下重复结构单元: