Production of a polyacyloxalamidrazone
    81.
    发明授权
    Production of a polyacyloxalamidrazone 失效
    聚山梨醇化合物的生产

    公开(公告)号:US3718625A

    公开(公告)日:1973-02-27

    申请号:US3718625D

    申请日:1970-10-05

    申请人: GLANZSTOFF AG

    IPC分类号: C08G73/00 C08G20/20 C08G20/22

    CPC分类号: C08G73/00

    摘要: Production of polyacyloxalamidrazones, especially a very high molecular weight polyterephthaloyloxalamidrazone having recurring units of the formula BY AN INTERFACIAL POLYCONDENSATION OF OXALIC ACID BISAMIDRAZONE WITH AN ACYL DIHALIDE MONOMER SUCH AS TEREPHTHALIC ACID DICHLORIDE AT TEMPERATURES OF 0*C. to 60*C. in a two-phase solvent system consisting essentially of water and a waterimmiscible, inert organic solvent, in the presence of an acid acceptor and in the presence of a substantial amount of a neutral alkali metal salt. High molecular weight polymer films or filaments can be formed from an alkaline solution of the polymer.

    摘要翻译: 聚酰胺酰腙,特别是具有下式重复单元的非常高分子量的聚对苯二甲酰氨基腙的制备通过在0℃至60℃的温度下在二氯甲烷中在0℃至60℃的温度下,将异柠檬酸二异氰酸酯与ACYL二卤化物单体的界面聚合 基本上由水和水不混溶的惰性有机溶剂组成的相溶剂系统在酸受体的存在下和在大量的中性碱金属盐的存在下进行。 可以由聚合物的碱性溶液形成高分子量聚合物膜或长丝。

    Aromatic azo block copolymers
    83.
    发明授权
    Aromatic azo block copolymers 失效
    芳香AZO嵌段共聚物

    公开(公告)号:US3644283A

    公开(公告)日:1972-02-22

    申请号:US3644283D

    申请日:1970-08-20

    申请人: MONSANTO CO

    发明人: BACH HARTWIG C

    CPC分类号: C08G73/00

    摘要: AROMATIC AZO BLOCK COPOLYMERS HAVING AN AZO GROUP CONTAINING WHOLLY AROMATIC BLOCK POLYMER UNIT AND A SECOND WHOLLY AROMATIC NON-AZO BLOCK POLYMER UNIT ARE PREPARED AND ARE USEFUL IN THE PREPARATION OF FIBERS, FILAMENTS, FILMS AND OTHER SHAPED ARTICLES FOR APPLICATION WHERE THERMAL RESISTANCE, LIGHT STABILITY, SEMI-CONDUCTING AND PHOTOCHROMIC PROPERTIES ARE DESIRED.