Obscuring and nontoxic smoke compositions
    2.
    发明授权
    Obscuring and nontoxic smoke compositions 失效
    模糊和无毒的烟雾成分

    公开(公告)号:US5154782A

    公开(公告)日:1992-10-13

    申请号:US745501

    申请日:1991-08-15

    IPC分类号: C06B29/02 C06D3/00

    摘要: A composition which is capable of producing an obscuring white smoke is disclosed which employs a dicarboxylic acid as the primary smoke producing agent. It is found that by using a dicarboxylic acid smoke producing agent, a generally non-toxic and non-corrosive smoke is achieved. Also included within the composition are a binder, a fuel or coolant, and an oxidizer. The binder may be any one of a number of binders such as nitrocellulose or a polymer binder. A low energy fuel is preferred in order to minimize heat and flame produced. Such fuels may include, for example, starch, dextrose, lactose, sucrose, or sulphur. The presently preferred oxidizer is KCLO.sub.3. Other substances may also be added to the composition. For example, sodium bicarbonate may be added to act as a buffer for the KCLO.sub.3 and as a further coolant. In some cases it may also be desirable to add aluminum for purposes of producing more uniform burning and increased thermal conductivity through out the composition.

    摘要翻译: 公开了一种能够产生模糊白烟的组合物,其使用二羧酸作为主要烟雾产生剂。 发现通过使用二羧酸烟雾产生剂,可以获得通常无毒且无腐蚀性的烟雾。 组合物中还包括粘合剂,燃料或冷却剂和氧化剂。 粘合剂可以是许多粘合剂中的任何一种,例如硝酸纤维素或聚合物粘合剂。 为了最小化产生的热量和火焰,优选低能燃料。 这样的燃料可以包括例如淀粉,葡萄糖,乳糖,蔗糖或硫。 目前优选的氧化剂是KCLO3。 也可以向组合物中加入其它物质。 例如,可以加入碳酸氢钠以用作KCLO 3的缓冲液和另外的冷却剂。 在一些情况下,为了通过组合物产生更均匀的燃烧和增加的导热性,也可能需要加入铝。

    Igniting rocket propellants under vacuum conditions
    3.
    发明授权
    Igniting rocket propellants under vacuum conditions 失效
    在真空条件下点燃火箭推进剂

    公开(公告)号:US4658578A

    公开(公告)日:1987-04-21

    申请号:US714351

    申请日:1984-03-21

    申请人: Graham C. Shaw

    发明人: Graham C. Shaw

    IPC分类号: C06B23/00 C06B45/10 F02K9/08

    CPC分类号: C06B23/00 C06B45/10

    摘要: Improved igniter compositions for rocket motors are provided which, when cured, are non-volatile and are capable of igniting under vacuum conditions and burning steadily at reduced pressures. Said igniter compositions comprise:(a) about 11% to about 13% hydroxyl terminated polybutadiene binder prepolymer;(b) about 0.7% to about 2.0% polyfunctional isocyanate curing agent for said binder prepolymer;(c) about 2.0% to about 20% metallic powder fuel;(d) about 20% to about 40% large particle size ammonium perchlorate;(e) about 30% to about 50% small particle size ammonium perchlorate;(f) about 0.05% to about 5.0% non-volatile burning rate catalyst;(g) about 0.05% to about 0.50% bonding agent capable of wetting the solids in the composition by said binder prepolymer and of chemically coupling with said ammonium perchlorate; and(h) about 0.01% to about 0.20% ammonia scavenger wherein all percentages are by weight based on the total weight of the compositions.

    摘要翻译: 提供了用于火箭发动机的改进的点火器组合物,其在固化时是非挥发性的并且能够在真空条件下点燃并在减压下稳定燃烧。 所述点火器组合物包含:(a)约11%至约13%羟基封端的聚丁二烯粘合剂预聚物; (b)约0.7%至约2.0%的多官能异氰酸酯固化剂用于所述粘合剂预聚物; (c)约2.0%至约20%的金属粉末燃料; (d)约20%至约40%的大粒径铵高氯酸铵; (e)约30%至约50%的小颗粒度的高氯酸铵; (f)约0.05%至约5.0%的非挥发性燃烧速率催化剂; (g)约0.05%至约0.50%的能够通过所述粘合剂预聚物润湿组合物中的固体并与所述高氯酸铵化学偶联的粘合剂; 和(h)约0.01%至约0.20%的氨清除剂,其中所有百分比均为基于组合物总重量的重量百分比。

    Solid non-azide nitrogen gas generant compositions
    4.
    发明授权
    Solid non-azide nitrogen gas generant compositions 失效
    固体非叠氮化物氮气发生剂组合物

    公开(公告)号:US4369079A

    公开(公告)日:1983-01-18

    申请号:US221942

    申请日:1980-12-31

    申请人: Graham C. Shaw

    发明人: Graham C. Shaw

    CPC分类号: C01B21/02 C06D5/06

    摘要: A solid non-azide, non-toxic, substantially moisture-free nitrogen gas generating composition intended for use in the deployment of inflatable safety crash bags for driver and passenger protection in vehicles consists essentially of a metal salt of a non-hydrogen containing tetrazole compound selected from the group consisting of alkali metal salts and alkaline earth metal salts and an oxidizer containing nitrogen and a member selected from the group consisting of an alkali metal and an alkaline earth metal, the tetrazole being an azobitetrazole, and examples of the oxidizer being sodium nitrate, sodium nitrite and potassium nitrate.

    摘要翻译: 一种固体非叠氮化物,无毒的,基本上无水的氮气产生组合物,其用于部署用于车辆中的驾驶员和乘客保护的可充气安全碰撞袋,主要由不含氢的四唑化合物的金属盐 选自碱金属盐和碱土金属盐和含氮的氧化剂和选自碱金属和碱土金属的成员,所述四唑是偶氮四唑,氧化剂的实例是钠 硝酸盐,亚硝酸钠和硝酸钾。

    Pyrotechnic non-azide gas generants based on a non-hydrogen containing
tetrazole compound
    5.
    发明授权
    Pyrotechnic non-azide gas generants based on a non-hydrogen containing tetrazole compound 失效
    基于非氢的四唑化合物的烟火非叠氮化物气体发生剂

    公开(公告)号:US4370181A

    公开(公告)日:1983-01-25

    申请号:US221943

    申请日:1980-12-31

    CPC分类号: C01B21/02 C06D5/06

    摘要: A solid non-azide composition for generating non-toxic nitrogen gas intended for use in the deployment of inflatable safety crash bags for driver and passenger protection in vehicles consists essentially of a non-hydrogen containing tetrazole compound and a non-oxygen containing oxidizer, examples of the tetrazole being di-alkali metal or mono-alkaline earth metal salts of 5,5'-bitetrazole, and examples of the oxidizer being sulfur, molybdenum disulfide, chromium trichloride and iron trifluoride.

    摘要翻译: 用于产生无毒氮气的固体非叠氮化物组合物主要由不含氢的四唑化合物和不含氧氧化剂组成,用于部署用于驾驶员和旅客保护的充气安全碰撞袋中的无毒氮气 的四唑是5,5'-四唑的二碱金属或单碱土金属盐,氧化剂为硫,二硫化钼,三氯化铬和三氟化铁的实例。

    Siloxane-coated ammonium perchlorate and propellant compositions made
therewith
    8.
    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。