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    • 4. 发明申请
    • PERCUSSION PRIMER COMPOSITION AND SYSTEMS INCORPORATING SAME
    • 与此同时引发的主要成分和体系
    • US20130126057A1
    • 2013-05-23
    • US13477750
    • 2012-05-22
    • Harold E. JohnstonKirstin F. WarnerReed J. BlauScott K. Lusk
    • Harold E. JohnstonKirstin F. WarnerReed J. BlauScott K. Lusk
    • C06B45/34C06B45/24C06B45/00
    • C06B45/34C06B33/08C06B45/00C06B45/18C06B45/24C06C7/00F42C19/0803F42C19/10
    • A percussion primer composition that comprises an explosive and a sensitizer, the explosive being a moderately insensitive explosive having an impact sensitivity in the range from about 0.3 kp m to about 0.75 kp m. The moderately insensitive explosive may comprise CL-20, PETN, RDX, HMX, or mixtures thereof. The sensitizer may comprise aluminum, titanium, zirconium, magnesium, melamine, styrene, lithium aluminum hydride, or mixtures thereof. In some instances, the percussion primer composition may comprise the moderately insensitive explosive precipitated onto the sensitizer. The percussion primer composition may contain an oxidizer, which in certain situations comprises a conventional oxidizer or a bismuth compound. The bismuth compound is bismuth trioxide, bismuth subnitrate, bismuth tetroxide, bismuth sulfide, or mixtures thereof. A gun cartridge and other primer-containing ordnance assemblies employing the percussion primer composition are also disclosed. Methods of forming the sensitized explosive and the percussion primer are also disclosed.
    • 包含炸药和致敏剂的冲击底漆组合物,该炸药是中等不敏感的炸药,其冲击灵敏度在约0.3kpm至约0.75kpm的范围内。 中等不敏感的炸药可以包括CL-20,PETN,RDX,HMX或其混合物。 敏化剂可以包括铝,钛,锆,镁,三聚氰胺,苯乙烯,氢化铝锂或其混合物。 在一些情况下,敲击底漆组合物可以包含沉淀在敏化剂上的中度不敏感的炸药。 敲击底漆组合物可以含有氧化剂,其在某些情况下包含常规的氧化剂或铋化合物。 铋化合物是三氧化铋,碱式硝酸铋,四氧化铋,硫化铋或其混合物。 还公开了使用冲击底漆组合物的枪筒和其它含底漆的弹药组合物。 还公开了形成敏化炸药和冲击底漆的方法。
    • 7. 发明授权
    • Methods for synthesizing and processing bis-(1(2)H-tetrazol-5-yl)-amine
    • 合成和加工双 - (1(2)H-四唑-5-基) - 胺的方法
    • US5468866A
    • 1995-11-21
    • US177737
    • 1994-01-04
    • Thomas K. HighsmithRobert M. HajikRobert B. WardleGary K. LundReed J. Blau
    • Thomas K. HighsmithRobert M. HajikRobert B. WardleGary K. LundReed J. Blau
    • C07D257/06C07D403/12
    • C07D257/06
    • Methods of preparing bis-(1(2)H-tetrazol-5-yl)-amine (BTA) having improved physical and chemical characteristics are disclosed. In the process, a dicyanamide salt and an azide salt are reacted at high temperature in the presence of an acid reagent. Best yields are obtained when the reaction is allowed to proceed for approximately 48 hours. The dicyanamide salt is preferably present in a stoichiometric excess. The acid reagent has a pK.sub.a in the range from about 3 to about 9. The reaction mixture is acidified to a pH less than 3. Several variations of the acidification step permit control of particle size and morphology. Small, rounded particles are prepared by rapidly cooling the hot crude reaction product coincidentally with acidification. This is preferably accomplished by adding the hot crude reaction product directly to cold concentrated acid. The precipitated particles are isolated to yield BTA.
    • 公开了具有改善的物理和化学特性的双 - (1(2)H-四唑-5-基) - 胺(BTA)的制备方法。 在此过程中,二氰胺盐和叠氮盐在酸性试剂的存在下在高温下反应。 当允许反应进行约48小时时,获得最佳收率。 二氰胺盐优选以化学计量过量存在。 酸试剂的pKa在约3至约9的范围内。将反应混合物酸化至小于3的pH。酸化步骤的几个变化允许控制粒度和形态。 通过与酸化偶然地快速冷却热粗反应产物来制备小的圆形颗粒。 这优选通过将热粗反应产物直接加入到冷的浓酸中来完成。 分离沉淀的颗粒以产生BTA。