Siloxane-coated ammonium perchlorate and propellant compositions made
therewith
    91.
    发明授权
    Siloxane-coated ammonium perchlorate and propellant compositions made therewith 失效
    硅氧烷涂覆的高氯酸铵和由其制成的推进剂组合物

    公开(公告)号:US4124418A

    公开(公告)日:1978-11-07

    申请号:US352589

    申请日:1973-04-19

    IPC分类号: C06B45/32 C06B45/34

    CPC分类号: C06B45/32

    摘要: Ammonium perchlorate particles having strongly adherent wettable coatings are made by treating the particles with stong amines that displace ammonia to form amine perchlorates at the particle surfaces. Silanylamines are preferred since after amination of the perchlorate the silane groups can be hydrolyzed to siloxanes having good wettability by liquid polymeric propellant binders. The coated perchlorate can be used to produce solid propellants having improved mechanical properties and burning characteristics.

    摘要翻译: 具有强粘附性可湿性涂层的高氯酸铵颗粒通过用在氨基表面上置换氨以形成高氯酸铵的苯胺处理该颗粒来制备。 硅烷基胺是优选的,因为高氯酸盐胺化后,硅烷基团可以通过液体聚合物推进剂粘合剂水解成具有良好润湿性的硅氧烷。 涂覆的高氯酸盐可用于生产具有改善的机械性能和燃烧特性的固体推进剂。

    Explosive grade aluminum powder
    92.
    发明授权
    Explosive grade aluminum powder 失效
    爆炸级铝粉

    公开(公告)号:US4089715A

    公开(公告)日:1978-05-16

    申请号:US679461

    申请日:1976-04-22

    IPC分类号: C06B45/32

    CPC分类号: C06B45/32 Y10S149/114

    摘要: An explosive grade aluminium composition comprises an admixture of aluminium powder and a subdivided carrier therefor having a bulk density less than or equal to that of the aluminium powder and wherein at least part of the powder adheres to the carrier, a coating agent being optionally included in the admixture to facilitate the adhesion of the powder to the carrier.

    摘要翻译: 爆炸级铝组合物包含铝粉和其细分载体的混合物,其具有小于或等于铝粉的体积密度,并且其中至少一部分粉末粘附到载体上,任选地包含在 该混合物有助于粉末粘附到载体上。

    Siloxane coatings for solid propellant ingredients
    93.
    发明授权
    Siloxane coatings for solid propellant ingredients 失效
    用于固体推进剂成分的硅氧烷涂层

    公开(公告)号:US3984264A

    公开(公告)日:1976-10-05

    申请号:US812469

    申请日:1969-04-01

    摘要: This patent describes high energy propellant ingredients in particulate f containing thereon a crosslinked siloxane polymer envelope or coating from an organic hydrolyzable silane having a functionality greater than 2. This patent also describes a method of providing a cross-linked siloxane polymer coating on finely divided high energy propellant ingredients by suspending the finely divided ingredients in an inert solvent, introducing therein a hydrolyzable organic silane having a functionality greater than 2 and subsequently isolating the polymer coated product in a dry free-flowing particulate form after stripping of the solvent.

    摘要翻译: 该专利描述了具有颗粒形式的高能推进剂成分,其中包含交联的硅氧烷聚合物包层或具有大于2的官能团的有机可水解硅烷的涂层。该专利还描述了一种在细碎高分子上提供交联的硅氧烷聚合物涂层的方法 将精细分散的成分悬浮在惰性溶剂中,在其中引入功能大于2的可水解的有机硅烷,随后在汽提溶剂之后将干燥的自由流动的颗粒形式分离出聚合物涂覆的产品。

    Extension of pot life of HTPB composite propellants by phosphine oxides
    94.
    发明授权
    Extension of pot life of HTPB composite propellants by phosphine oxides 失效
    通过氧化膦延长HTPB复合推进剂的适用期

    公开(公告)号:US3974004A

    公开(公告)日:1976-08-10

    申请号:US439151

    申请日:1974-02-04

    摘要: Trioctylphosphine oxide and tributylphosphine oxide are representative of e phosphine oxide compounds which are utilized in isocyanate curable composite propellant compositions to extend usable pot life required for mixing and processing of the specified compositions. The compositions are comprised of a binder of hydroxy terminated liquid polymer systems, (e.g. hydroxy terminated polybutadiene and the like) optional selected plasticizers, optional metal fuel, and the inorganic oxidizer, ammonium perchlorate, that is substantially of very fine particle size (less than 20 microns).

    摘要翻译: 三辛基氧化膦和三丁基氧化膦代表用于可异氰酸酯固化的复合推进剂组合物中的氧化膦化合物,以延长混合和加工特定组合物所需的适用期。 组合物由羟基封端的液体聚合物体系的粘合剂(例如羟基封端的聚丁二烯等)组成,任选的选择的增塑剂,任选的金属燃料和无机氧化剂,高氯酸铵,其基本上非常细的粒度(小于 20微米)。