Binder matrix for gas generants and related compositions and methods
    1.
    发明授权
    Binder matrix for gas generants and related compositions and methods 失效
    用于气体发生剂的粘合剂基质及相关组合物和方法

    公开(公告)号:US06689236B1

    公开(公告)日:2004-02-10

    申请号:US10393126

    申请日:2003-03-20

    IPC分类号: C06B4510

    CPC分类号: C06D5/06 C06B25/34 C06B45/10

    摘要: A binder matrix suitable for use in a gas generant composition, a gas generant composition including the binder matrix, and a related method of igniting such a gas generant composition are provided. The binder matrix includes a non-energetic binder material and dimethyl malonate non-energetic plasticizer and has a softening temperature above at least about 125° C. A gas generant composition including the binder matrix includes a non-energetic binder material such as cellulose acetate, dimethyl malonate non-energetic plasticizer, a fuel such as a nitramine fuel such as RDX, HMX or a combination thereof, and a stabilizer such as N-methyl-p-nitroaniline.

    摘要翻译: 提供适用于气体发生剂组合物的粘合剂基质,包含粘合剂基质的气体发生剂组合物和点燃这种气体发生剂组合物的相关方法。 粘合剂基质包括非能量粘合剂材料和丙二酸二甲酯非能量增塑剂,并且具有高于至少约125℃的软化温度。包含粘合剂基质的气体发生剂组合物包括不含能的粘合剂材料,例如醋酸纤维素, 丙二酸二甲酯无能增塑剂,诸如RDX,HMX等硝胺燃料的燃料或其组合,以及N-甲基对硝基苯胺等稳定剂。

    Enhanced thermal and ignition stability azide gas generant
    4.
    发明授权
    Enhanced thermal and ignition stability azide gas generant 失效
    增强热和点火稳定性气体发生器

    公开(公告)号:US5223184A

    公开(公告)日:1993-06-29

    申请号:US651157

    申请日:1991-02-06

    IPC分类号: C06B35/00 C06D5/06

    CPC分类号: C06B35/00 C06D5/06

    摘要: Multiple processes and apparatuses for improving the prior system of making gas generant pellets or tablets made of sodium azide, molybdenum disulfide and sulfur wherein powdered ingredients thereof are slurried in water, subjected to wet grinding, spray dried to a powdered material which is molded into pellets or tablets which find use in vehicle crash bags or inflators.The first improvement to the old process and apparatus involves adjusting the basicity of the water to a pH of greater than 8.0 up to about 12.5 via the addition of sodium hydroxide, followed by the addition of sulfur and molybdenum disulfide and finally the sodium azide whereby azide addition is made to a basic mixture of the other ingredients thereby keeping hydrazoic acid concentration levels below about 3.times.10EXP(-3) moles per liter.The second improvement to the old process and apparatus involves (1) softening the water before its use in slurrying the powdered ingredients to remove undesirable Ca and Mg ions and/or (2) adding sodium sulfide and/or tri-sodium phosphate to the slurry to precipitate any remaining undesirable Ca, Mg, Pb, Fe, Mn and Cu ions as non-hazardous compounds. Each of these metal ions is reduced to no more than about 25 ppm or less.Also these two improvements are joined together to form a system wherein even better safety results occur.The improvements not only extend to the final product produced, but to the intermediates at the slurry stage as well as at the spray dried stage, which products differ due to significant elimination or minimization of hydrazoic acid and other contaminant metal ion species above mentioned.

    摘要翻译: 用于改进制备由叠氮化钠,二硫化钼和硫磺制成的气体发生剂颗粒或片剂的先前系统的多种方法和装置,其中将粉末成分在水中成浆,经湿磨后,喷雾干燥成粉末状物料, 或用于车辆碰撞袋或充气器的片剂。 对旧方法和装置的第一改进包括通过加入氢氧化钠将水的碱度调节至大于8.0至约12.5的pH,然后加入硫和二硫化钼,最后加入叠氮化钠,由此叠氮化物 加入其他成分的碱性混合物,从而保持浓氢酸浓度低于每升约3×10 6 P(-3)摩尔。 对旧方法和装置的第二改进包括(1)在使用之前软化水,以粉碎粉末成分以除去不需要的Ca和Mg离子和/或(2)向浆料中加入硫化钠和/或三磷酸钠 以沉淀任何残留的不合需要的Ca,Mg,Pb,Fe,Mn和Cu离子作为无害化合物。 这些金属离子中的每一种都被还原成不超过约25ppm或更少。 而且,这两个改进措施被连接在一起以形成其中发生甚至更好的安全结果的系统。 这些改进不仅延伸到所生产的最终产品,而且延伸到浆料阶段的中间体以及在喷雾干燥阶段,由于显着消除或最小化上述的叠氮酸和其它污染金属离子物质,这些产物不同。

    Enhanced thermal and ignition stability azide gas generant intermediates
    5.
    发明授权
    Enhanced thermal and ignition stability azide gas generant intermediates 失效
    增强热稳定性和点火稳定性叠氮化物气体发生剂中间体

    公开(公告)号:US5437229A

    公开(公告)日:1995-08-01

    申请号:US19948

    申请日:1993-04-08

    IPC分类号: C06B35/00 C06D5/06 C06B45/00

    CPC分类号: C06B35/00 C06D5/06

    摘要: Slurry and spray dried azide-based gas generant intermediates are made having a hydrazoic acid content of less than about 3.times.10 EXP(-3) M/L, a pH of greater than 8.0 up to about 12.5, and impurity metal ions Ca, Mg, Pb, Fe, Mn and Cu, each below about 25 ppm. These intermediates are made by slurrying powdered ingredients of the azide and oxidizer/reactant in water, wet grinding the slurry and spray drying to form a particulate material which is molded into pellets or tablets which are useful as the gas generant in vehicle crash bags or inflators. The basicity of the water is adjusted to a pH of greater than 8.0 up to about 12.5, preferably about 10, by the addition of a base, such as NaOH, followed by the addition of such solid ingredients as S, MoS.sub.2 and NaN.sub.3, and preferably the NaN.sub.3 is added last, whereby hydrazoic acid production is minimized. The contaminant Ca and Mg ions are minimized by softening the water supplied. Impurity ions are also minimized by being precipitated as non-hazardous compounds by adding such agents as sodium sulfide and tri-sodium phosphate to the slurry. Impurities in the MoS.sub.2 feed may be further minimized by chemical leaching purification.

    摘要翻译: 制备浆料和喷雾干燥的叠氮化物气体发生剂中间体,其具有小于约3×10 3 EXP(-3)M / L,大于8.0至12.5的pH,以及杂质金属离子Ca,Mg, Pb,Fe,Mn和Cu,各自低于约25ppm。 这些中间体通过将叠氮化物和氧化剂/反应物的粉末成分在水中制浆,湿磨研磨浆料并喷雾干燥以形成颗粒材料,其被制成丸粒或片剂,其可用作车辆碰撞袋或充气器中的气体发生剂 。 通过加入碱如NaOH将水的碱度调节至大于8.0至约12.5,优选约10的pH,然后加入诸如S,MoS 2和NaN 3的固体成分,以及 优选最后添加NaN 3,由此使产氢量最小化。 通过软化所供应的水使污染物Ca和Mg离子最小化。 通过向浆料中加入硫化钠和三磷酸钠等试剂,通过作为无害化合物的沉淀也使杂质离子最小化。 通过化学浸出净化可以进一步减少MoS2进料中的杂质。

    Process for making an enhanced thermal and ignition stability azide gas
generant
    6.
    发明授权
    Process for making an enhanced thermal and ignition stability azide gas generant 失效
    制备增强的热稳定性和点火稳定性的叠氮化物气体发生剂的方法

    公开(公告)号:US5019220A

    公开(公告)日:1991-05-28

    申请号:US563772

    申请日:1990-08-06

    CPC分类号: C06B35/00 C06D5/06

    摘要: Multiple processes and apparatuses for improving the prior system of making gas generant pellets or tablets made of sodium azide, molybdenum disulfide and sulfur wherein powdered ingredients thereof are slurried in water, subjected to wet grinding, spray dried to a powdered material which is molded into pellets or tablets which find use in vehicle crash bags or inflators.The first improvement to the old process and apparatus involves adjusting the basicity of the water to a pH of greater than 8.0 up to about 12.5 via the addition of sodium hydroxide, followed by the addition of sulfur and molybdenum disulfide and finally the sodium azide whereby azide addition is made to a basic mixture of the other ingredients thereby keeping hydrazoic acid concentration levels below about 3.times.10EXP(-3) moles per liter.The second improvement to the old process and apparatus involves (1) softening the water before its use in slurrying the powdered ingredients to remove undesirable Ca and Mg ions and/or (2) adding sodium sulfide and/or tri-sodium phosphate to the slurry to precipitate any remaining undesirable Ca, Mg, Pb, Fe, Mn and Cu ions as non-hazardous compounds. Each of these metal ions is reduced to no more about 25 ppm or less.Also these two improvements are joined together to form a system wherein even better safety results occur.The improvements not only extend to the final product produced, but to the intermediates at the slurry stage as well as at the spray dried state, which products differ due to significant elimination or minimization of hydrazoic acid and other contaminant metal ion species above mentioned.

    Alkali metal perchlorate-containing gas generants
    7.
    发明授权
    Alkali metal perchlorate-containing gas generants 有权
    碱金属高氯酸盐气体发生剂

    公开(公告)号:US08388777B2

    公开(公告)日:2013-03-05

    申请号:US13355665

    申请日:2012-01-23

    CPC分类号: C06D5/06

    摘要: Alkali metal perchlorate-containing gas generant compositions which, upon combustion, produce or result in an improved effluent and related methods for generating an inflation gas for use in an inflatable restraint system are provided. Such alkali metal perchlorate-containing gas generant compositions include at least one alkali metal perchlorate present with a mean particle size in excess of 100 microns. Such alkali metal perchlorate-containing gas generant compositions also include or contain a suitable non-azide, organic, nitrogen-containing fuel and at least one copper-containing compound selected from the group consisting of basic copper nitrate, cupric oxide, copper diammine dinitrate-ammonium nitrate mixture wherein ammonium nitrate is present in the mixture in a range of about 3 to about 90 weight percent, copper diammine bitetrazole, a copper-nitrate complex resulting from reaction of 5-aminotetrazole with basic copper nitrate and combinations thereof.

    摘要翻译: 提供了在燃烧时产生或导致改进的流出物的碱金属高氯酸盐气体发生剂组合物,以及用于产生用于可充气约束系统的充气气体的相关方法。 这种含高氯酸高氯酸的气体发生剂组合物包括至少一种平均粒度超过100微米的碱金属高氯酸盐。 这种含碱金属高氯酸盐气体发生剂组合物还包括或含有合适的非叠氮化物,有机,含氮燃料和至少一种选自碱式硝酸铜,氧化铜,二硝酸铜二氧化钛 - 硝酸铵混合物,其中硝酸铵在约3至约90重量%的范围内存在于混合物中,铜二氨基四唑,由5-氨基四唑与碱式硝酸铜的反应产生的硝酸铜络合物及其组合。

    ADDITIVES FOR LIQUID-COOLED INFLATORS
    8.
    发明申请
    ADDITIVES FOR LIQUID-COOLED INFLATORS 审中-公开
    液体冷凝器的添加剂

    公开(公告)号:US20110221174A1

    公开(公告)日:2011-09-15

    申请号:US13011615

    申请日:2011-01-21

    IPC分类号: B60R21/264 F28D15/00

    摘要: An inflator that includes a quantity of gas generant housed within a chamber. A liquid including at least one of a fuel soluble in the liquid or an oxidizer soluble in the liquid and a piston are housed within another chamber of the inflator. This chamber is sealed. Upon actuation, movement of the piston hydraulically expels the liquid through an opening in the piston such that the liquid contacts the gas formed by combustion of the gas generant and cools the same. The fuel and/or oxidizer in the liquid can react to form additional gas.

    摘要翻译: 一种充气机,其包括容纳在室内的一定量的气体发生剂。 包括可溶于液体的燃料或可溶于液体的氧化剂和活塞中的至少一种的液体容纳在充气机的另一个室内。 这个室被密封。 在致动时,活塞的运动将液体驱逐通过活塞中的开口,使得液体接触由气体发生剂的燃烧形成的气体并使其冷却。 液体中的燃料和/或氧化剂可以反应以形成另外的气体。

    High gas yield generant compositions
    10.
    发明授权
    High gas yield generant compositions 失效
    高产气量组合物

    公开(公告)号:US6132538A

    公开(公告)日:2000-10-17

    申请号:US124944

    申请日:1998-07-30

    IPC分类号: C06D5/06 C06B31/28 C06B31/56

    CPC分类号: C06D5/06

    摘要: Gas generant compositions, such as may be suited for use in inflating automotive inflatable restraint airbag cushions, are provided. Such gas generant compositions generally contain a mixture of guanidine nitrate, ammonium nitrate, and a transition metal ammine nitrate, such as copper diammine dinitrate and preferably also contain one or more ballistic additives.

    摘要翻译: 提供了气体发生剂组合物,例如可适用于充气汽车充气约束气囊垫。 这种气体发生剂组合物通常含有硝酸胍,硝酸铵和硝酸过渡金属氨合物的混合物,例如硝酸二氧化钛,优选还含有一种或多种弹道添加剂。