Cycloaliphatic unsymmetrical diamines
    11.
    发明授权
    Cycloaliphatic unsymmetrical diamines 失效
    环脂族不对称二胺

    公开(公告)号:US4024185A

    公开(公告)日:1977-05-17

    申请号:US529438

    申请日:1974-12-04

    申请人: Lester T. C. Lee

    发明人: Lester T. C. Lee

    IPC分类号: C08G69/26 C07C87/38

    CPC分类号: C08G69/26

    摘要: Novel cycloaliphatic diamines have been prepared which are consisting of two unequivalent amine groups. The diamines are prepared by reduction of aromatic dinitro compounds. The polyamides made from these diamines are useful in forming fibers and films having excellent high temperature properties.

    摘要翻译: 已经制备了由两个不等价的胺基组成的新的脂环族二胺。 二胺通过还原芳族二硝基化合物制备。 由这些二胺制成的聚酰胺可用于形成具有优异的高温性能的纤维和薄膜。

    Coloration of acetylenic monomers by gases
    12.
    发明授权
    Coloration of acetylenic monomers by gases 失效
    通过气体着色炔属单体

    公开(公告)号:US4550150A

    公开(公告)日:1985-10-29

    申请号:US208227

    申请日:1980-11-19

    CPC分类号: C07C271/12

    摘要: Process of detecting the presence of certain gases, including certain pollutants, in small concentrations; or to cause partial polymerization of certain polyacetylene compositions for use in time/temperature history indicators or radiation dosage indicators. The process involves contacting a reactive gas, such as a nitrogen oxide, a halide or ozone, with a crystalline substituted acetylenic monomer containing at least two conjugated triple bonds and substituents having at least one atom of oxygen or nitrogen. In particular the acetylenic compound is 2,4-hexadiyne-1,6-bis(phenylurethane) crystallized from tetrahydrofuran or acetone.

    摘要翻译: 以少量浓度检测某些气体(包括某些污染物)的存在过程; 或引起部分聚乙炔组合物用于时间/温度历史指标或辐射剂量指标。 该方法包括将反应性气体如氮氧化物,卤化物或臭氧与含有至少两个共轭三键的结晶取代的炔属单体和具有至少一个氧原子或氮原子的取代基接触。 特别地,炔属化合物是由四氢呋喃或丙酮结晶的2,4-己二炔-1,6-双(苯基氨基甲酸酯)。