Gas generant composition containing non-metallic salts of
5-nitrobarbituric acid
    11.
    发明授权
    Gas generant composition containing non-metallic salts of 5-nitrobarbituric acid 失效
    含有5-硝基巴比妥酸非金属盐的气体发生剂组合物

    公开(公告)号:US5472534A

    公开(公告)日:1995-12-05

    申请号:US178215

    申请日:1994-01-06

    CPC分类号: C07D239/62

    摘要: A composition is provided which comprises a fuel effective amount of a heterocyclic compound represented by the formula: ##STR1## wherein X is a non-metallic cation; and an oxidizing effective amount of an inorganic oxidizer. The oxidizer can be an inorganic nitrite, an inorganic nitrate, a metal peroxide, a metal oxide, a metal hydroxide, an inorganic perchlorate, or an inorganic chlorate. A binder can be added, if desired. An automotive air bag inflator and a method for generating gas are also disclosed.

    摘要翻译: 提供了一种组合物,其包含燃料有效量的由下式表示的杂环化合物:其中X是非金属阳离子; 和氧化有效量的无机氧化剂。 氧化剂可以是无机亚硝酸盐,无机硝酸盐,金属过氧化物,金属氧化物,金属氢氧化物,无机高氯酸盐或无机氯酸盐。 如果需要,可以加入粘合剂。 还公开了一种汽车气囊充气机和一种产生气体的方法。

    Vinyl ethers as nonammonia producing bonding agents in composite
propellant formulations
    12.
    发明授权
    Vinyl ethers as nonammonia producing bonding agents in composite propellant formulations 失效
    乙烯基醚作为复合推进剂配方中产生非氨的粘合剂

    公开(公告)号:US5336343A

    公开(公告)日:1994-08-09

    申请号:US48491

    申请日:1993-04-16

    IPC分类号: C06B45/10

    CPC分类号: C06B45/10

    摘要: Vinyl ethers for use as bonding agents in solid rocket propellants are disclosed. The vinyl ether bonding agents are capable of polymerizing in the presence of and around the surface of ammonium perchlorate particles. The bonding agents of the present invention are added to the propellant in a range from about 0.1% to about 3% by weight concentration. Importantly, there is no increase in ammonia liberated above baseline propellant values and no increase in end of mix viscosities by using the vinyl ethers according to the present invention which provides substantial processing savings.

    摘要翻译: 公开了用作固体火箭推进剂中的粘合剂的乙烯基醚。 乙烯基醚粘合剂能够在高氯酸铵颗粒表面存在和周围聚合。 将本发明的粘合剂以约0.1重量%至约3重量%浓度的范围加入到推进剂中。 重要的是,通过使用根据本发明的提供显着处理节省的乙烯基醚,释放的基础上推进剂值没有增加的氨,并且没有结束粘度的增加。

    Cationic polymerization of cyclic ethers
    13.
    发明授权
    Cationic polymerization of cyclic ethers 失效
    环醚的阳离子聚合

    公开(公告)号:US4988797A

    公开(公告)日:1991-01-29

    申请号:US323588

    申请日:1989-03-14

    IPC分类号: C08G65/18 C08G65/20

    CPC分类号: C08G65/20 C08G65/18

    摘要: Cyclic ethers having 4 and 5 member rings are polymerized with a alcohol initiator and an acid catalyst. The acid catalyst is used at a molar ratio relative to hydroxyl groups of the alcohol initiator of between about 0.05:1 and about 0.5:1.

    摘要翻译: 具有4和5个成员环的环醚与醇引发剂和酸催化剂聚合。 酸催化剂的使用摩尔比相对于醇引发剂的羟基为约0.05:1至约0.5:1。

    Hydrogenolysis of
2,4,6,8,10,12-Hexabenzyl-2,4,6,8,10,12-Hexaazatetracyclo�5.5.0.0.sup.5,9
.0.sup.3,11 !dodecane
    16.
    发明授权
    Hydrogenolysis of 2,4,6,8,10,12-Hexabenzyl-2,4,6,8,10,12-Hexaazatetracyclo�5.5.0.0.sup.5,9 .0.sup.3,11 !dodecane 失效
    2,4,6,8,10,12-六苄基-2,4,6,8,10,12-六氮杂四环[5.5.0.05,9.03,11]十二烷的氢解

    公开(公告)号:US5739325A

    公开(公告)日:1998-04-14

    申请号:US568451

    申请日:1995-12-07

    CPC分类号: C07D487/22

    摘要: A process for the hydrogenolysis of 2,4,6,8,10,12-hexabenzyl-2,4,6,8,10,12-hexaazatetracyclo�5.5.0.0.sup.5,9.0.sup.3,11 !dodecane ("HBIW") is disclosed. In the process, a quantity of HBIW, a cosolvent, and a bromine source are placed into a reaction vessel. Acetic anhydride and a palladium hydrogenolysis catalyst are rapidly added to the reaction vessel. The hydrogenolysis catalyst should be substantially free of water. The reaction vessel is purged of an atmosphere capable of reacting with hydrogen, and hydrogen is quickly introduced into the reaction vessel to convert the HBIW to tetraacetyldibenzylhexaazaisowurtzitane ("TADB"). The acetic anhydride is added immediately prior to hydrogen introduction so that the acetic anhydride does not have time to react with the HBIW to form an acetylated derivative prior to commencement of the desired hydrogenation reaction. The process requires very little palladium catalyst, preferably less than 10% wt/wt based on the HBIW substrate. The TADB, precipitated on the palladium hydrogenolysis catalyst, is subjected to a second hydrogenation step using a formic acid solvent in the presence of hydrogen to form tetraacetyldiformylhexaazaisowurtzitane ("TADF").

    摘要翻译: 公开了2,4,6,8,10,12-六苄基-2,4,6,8,10,12-六氮杂四环[5.5.0.05,9.03,11]十二烷(“HBIW”)的氢解方法 。 在此过程中,将一定数量的HBIW,共溶剂和溴源放入反应容器中。 将乙酸酐和钯氢解催化剂快速加入到反应容器中。 氢解催化剂应基本上不含水。 将反应容器吹扫出能够与氢反应的气氛,并将氢气快速地引入反应容器中,以将HBIW转化成四乙酰基二苄基六氮杂异纤锌矿型结构烷烃(“TADB”)。 在引入氢之前立即加入乙酸酐,使得乙酸酐在开始所需氢化反应之前没有时间与HBIW反应形成乙酰化衍生物。 该方法需要非常少的钯催化剂,优选基于HBIW底物小于10%wt / wt。 在钯氢解催化剂上沉淀的TADB在氢气存在下使用甲酸溶剂进行第二氢化步骤以形成四乙酰基全甲酰六氮杂异纤锌矿型结构烷烃(“TADF”)。

    Methods for synthesizing and processing bis-(1(2)H-tetrazol-5-yl)-amine
    18.
    发明授权
    Methods for synthesizing and processing bis-(1(2)H-tetrazol-5-yl)-amine 失效
    合成和加工双 - (1(2)H-四唑-5-基) - 胺的方法

    公开(公告)号:US5468866A

    公开(公告)日:1995-11-21

    申请号:US177737

    申请日:1994-01-04

    IPC分类号: C07D257/06 C07D403/12

    CPC分类号: C07D257/06

    摘要: 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.

    摘要翻译: 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。

    Phase-stabilized ammonium nitrate and method of making same
    19.
    发明授权
    Phase-stabilized ammonium nitrate and method of making same 失效
    相稳定硝酸铵及其制备方法

    公开(公告)号:US5292387A

    公开(公告)日:1994-03-08

    申请号:US10391

    申请日:1993-01-28

    IPC分类号: C01C1/18 C06B31/28 C06B45/10

    CPC分类号: C01C1/18 C06B31/28 C06B45/10

    摘要: Ammonium nitrate is phase-stabilized against Phase IV.rarw..fwdarw.Phase III transition and the undesired volume changes associated with that phase change by including an effective amount of at least one metal dinitramide salt having the formula MX.sub.n wherein M is a metal cation, X is a dinitramide anion, and n is 1, 2 or 3. The phase-stabilized ammonium nitrate is useful in energetic applications such as solid propellants and explosives.

    摘要翻译: 硝酸铵通过包含有效量的至少一种具有式MXn的金属二硝化盐,其中M是金属阳离子,X 是二硝基酰胺阴离子,n是1,2或3.相稳定化的硝酸铵可用于高能应用如固体推进剂和爆炸物。

    Synthesis of ABA triblock polymers and A.sub.n B star polymers from
cyclic ethers
    20.
    发明授权
    Synthesis of ABA triblock polymers and A.sub.n B star polymers from cyclic ethers 失效
    从环醚合成ABA三嵌段聚合物和AnB星形聚合物

    公开(公告)号:US4952644A

    公开(公告)日:1990-08-28

    申请号:US362633

    申请日:1989-06-07

    IPC分类号: C08G65/16 C08G65/22

    CPC分类号: C08G65/16 C08G65/22

    摘要: ABA triblock and A.sub.n B star polymers are produced by sequential cationic polymerization of 4 and 5 member ring cyclic ethers to initially form a B block and subsequent cationic polymerization of 4 and 5 member ring cyclic ethers to form A blocks at the termini of the B block. The B block is grown from the hydroxyl groups of a polyol having two or more hydroxyl groups, resulting in a B block having terminal hydroxyl functionality of two or greater. In growing each of the B and A blocks, the acid catalyst is used at a molar ratio relative to hydroxyl groups of the polyol initiator of between about 0.05:1 and about 0.5:1.

    摘要翻译: ABA三嵌段和AnB星形聚合物通过4和5元环环醚的顺序阳离子聚合制备,以最初形成B嵌段并随后在4个和5个成环环醚上进行阳离子聚合以在B嵌段的末端形成A嵌段。 B嵌段由具有两个或多个羟基的多元醇的羟基生长,得到具有两个或更多个末端羟基官能团的B嵌段。 在生长B和A嵌段的每一个中,酸催化剂以相对于多元醇引发剂的羟基的摩尔比在约0.05:1至约0.5:1之间使用。