Process for the preparation of polyterephthaloyl-and polydiphenyl
ether-4,4-dicarboxylic acid oxalamidrazone
    1.
    发明授权
    Process for the preparation of polyterephthaloyl-and polydiphenyl ether-4,4-dicarboxylic acid oxalamidrazone 失效
    聚对苯二酰基和聚二苯醚-4,4-二羧酸草酰肼的制备方法

    公开(公告)号:US4208509A

    公开(公告)日:1980-06-17

    申请号:US871135

    申请日:1978-01-20

    CPC分类号: C08G69/28

    摘要: A process for the production of high molecular weight, fiber- and film-trimming polyterephthaloyl oxalamidrazone and polydiphenylether-4,4'-dicarboxylic acid oxalamidrazone where a solution of pure terephtaloyl chloride or diphenyl-ether-4,4'-dicarboxylic acid dichloride in an inert solvent free from amines and water is slowly added, at a temperature between 10.degree. C. and 35.degree. C., to a solution of pure oxalic acid bisamidrazone in dimethyl acetamide and/or N-methyl pyrrolidone, free from amines and water, containing 4 to 6 percent by weight of anhydrous lithium chloride, the total quantity of the solvents used amounting to 1.25 to 3.30 liters per mole of oxalic acid bisamidrazone.

    摘要翻译: 一种制备高分子量,纤维和膜修剪聚对苯二甲酰草酰腙和聚二苯醚-4,4'-二羧酸草酰肼的方法,其中将纯对苯二甲酰氯或二苯基醚-4,4'-二羧酸二氯化物的溶液 在10℃至35℃的温度下,将不含胺和水的惰性溶剂缓慢加入到纯草酸二氨基腙在二甲基乙酰胺和/或N-甲基吡咯烷酮中的溶液,其不含胺和水 ,含有4〜6重量%的无水氯化锂,所使用的溶剂的总量为每摩尔草酸二氨基腙1.25-3.30升。

    Preparation of terephthaloyl-terephthal/oxal copolyhydrazide containing
zinc compound
    2.
    发明授权
    Preparation of terephthaloyl-terephthal/oxal copolyhydrazide containing zinc compound 失效
    含锌化合物的对苯二甲酰对苯二甲酸/草酰共酰亚胺的制备

    公开(公告)号:US4213890A

    公开(公告)日:1980-07-22

    申请号:US948494

    申请日:1978-10-04

    IPC分类号: C08G73/08 C08K3/10

    CPC分类号: C08G73/08

    摘要: Flame retardant films and fibers of zinc chelates of terephthaloyl-terephthalic/oxalic copolyhydrazides, the oxalic dihydrazide and terephthalic dihydrazide units having a molar ratio in the range of 19:6 to 6:19. The products aftertreated with an oxalic acid solution are colorless.

    摘要翻译: 阻燃膜和对苯二甲酰对苯二甲酸/草酸共聚酰肼的锌螯合物的纤维,草酸二酰肼和对苯二甲酸二酰肼单元的摩尔比在19:6至6:19的范围内。 用草酸溶液处理的产物是无色的。