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    Polyamidimides having modified end groups
    9.
    发明授权
    Polyamidimides having modified end groups 失效
    具有改性端基的聚酰亚胺

    公开(公告)号：US4829140A

    公开(公告)日：1989-05-09

    申请号：US766538

    申请日：1985-08-19

    申请人： Wilfried Zecher ,  Klaus Reinking

    发明人： Wilfried Zecher ,  Klaus Reinking

    IPC分类号： C08G18/00 ,  C08G18/28 ,  C08G18/34 ,  C08G18/60 ,  C08G73/14

    CPC分类号： C08G73/14 ,  C08G18/2855 ,  C08G18/343 ,  C08G18/603

    摘要： Thermoplastic polyamidimides useful for high temperature coating and having exceptional tensile strength and dimensional stability to heat are produced by condensation of organic polyisocyanates, such as aliphatic, aliphatic-aromatic or aromatic diisocyanates, with cyclic polycarboxylic acid anhydrides and lactams or polyamides carried out at temperatures of from 0.degree. to 400.degree. C. and optionally in a solvent together with from 0.1 to 10 mol-%, preferably from 0.2 to 4 mol-%, of an imidocarboxylic acid corresponding to the following formula ##STR1## wherein R.sub.1 and R.sub.2 represent aliphatic, aliphatic-aromatic or aromatic groups and R.sub.1 carries at least one cyclic anhydride group or carboxyl group in addition to the cyclic imide group.

    摘要翻译： 用于高温涂层并具有优异的抗拉强度和对热的尺寸稳定性的热塑性聚酰亚胺可以通过有机多异氰酸酯如脂族，脂族 - 芳族或芳族二异氰酸酯与环状多元羧酸酐和内酰胺或聚酰胺的缩合反应来制备， 0℃至400℃，任选在一种溶剂中，以及0.1至10摩尔％，优选0.2至4摩尔％的对应于下式的酰亚胺基羧酸，其中R1和R2表示脂族 ，脂肪族 - 芳香族或芳香族基，除了环状酰亚胺基之外，R 1还具有至少一个环状酸酐基或羧基。