Melt-cast explosive material
    14.
    发明授权
    Melt-cast explosive material 失效
    熔铸炸药

    公开(公告)号:US07304164B1

    公开(公告)日:2007-12-04

    申请号:US11549146

    申请日:2006-10-13

    CPC classification number: C07D233/92

    Abstract: 1-Methyl-2,4,5-Trinitroimidazole is synthesized starting from 4-nitroimidazole using stepwise nitration method and further methylation using Dimethylsulphate. It is relatively insensitive to impact and its thermal stability is excellent. The calculated detonation properties indicate that its performance is about 30% better than TATB. It can be prepared easily, with reasonable yield, starting from commercially available Imidazole. Results from impact sensitivity, friction sensitivity, time-to-explosion temperature and vacuum stability tests indicate that it is less sensitive than both RDX and HMX. The good oxygen balance and measured heat of formation data of this material indicate that its propellant performance should be good.

    Abstract translation: 使用逐步硝化方法从4-硝基咪唑开始合成1-甲基-2,4,5-三硝基咪唑,并使用二甲基硫酸盐进一步甲基化。 对冲击相对不敏感,其热稳定性优异。 计算的爆轰特性表明其性能比TATB好约30%。 从市售的咪唑开始,可以容易地制备出合理的产率。 冲击敏感性,摩擦灵敏度,时间 - 爆炸温度和真空稳定性测试结果表明,它比RDX和HMX都敏感。 该材料的良好的氧气平衡和测量的热量数据表明其推进剂性能应良好。

    Preparations of azabicylobutane precursors and related compositions
    18.
    发明授权
    Preparations of azabicylobutane precursors and related compositions 失效
    氮杂丁烷前体和相关组合物的制备

    公开(公告)号:US5824807A

    公开(公告)日:1998-10-20

    申请号:US441512

    申请日:1995-05-15

    CPC classification number: C07D205/04

    Abstract: Azabicylobutane can be produced by reacting azetidines under aqueous conditions to eliminate aza and 3-position substituents to effect cyclization. New azetidinyl compounds are described which can be intermediates in the preparation of the azabicyclobutane.

    Abstract translation: 氮杂丁烷可以通过在水性条件下使氮杂环丁烷反应以除去氮杂和3-位取代基以实现环化来制备。 描述了新的氮杂环丁烷基化合物,其可以是制备氮杂双环丁烷的中间体。

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