Apparatus and Method for Inflating In-Space Gossamer Structures with Solid-State Gas Generator Arrays

A micro gas generator having a housing that contains one or more heating units. The heating units are independently operable. Each of the heating units contains a heating element and gas producing material. 1. A micro gas generator comprising:a housing;a plurality of heating units contained in said housing; andsaid heating units independently operable.2. The gas generator of wherein each of said heating units contains a heating element and gas producing material.3. The gas generator of wherein each of said heating units includes a well claim 2 , each of said wells contain said gas producing material.4. The gas generator of wherein said gas producing material is a crystalline structure.5. The gas generator of wherein said crystalline structure is Sodium Azide (NaN).6. The gas generator of wherein said heating units are in communication with an inflatable structure claim 3 , said heating units operable to release a gas into an interior portion of said inflatable structure by heating said gas producing material and said gas passes directly into said interior portion without passing through any moving parts.7. The gas generator of wherein said heating units are in communication with an inflatable structure claim 3 , said heating units operable to release a gas into an interior portion of said inflatable structure by heating said gas producing material and said gas passes directly into said interior portion without passing through any moving parts and without exhausting the supply of said gas producing material.8. A micro gas generator comprising:an array of gas generating cells;a gas generating material located in a portion of each of said cells;a plurality of input ports, output ports and microheaters;each cell in communication with an input port, an output port and a micro heater;said array comprised of a plurality of layers;at least one of said layers made of a metal, said metal forms said input ports, output ports and microheaters;at least one of said layers form ...

Electric detonator and method for producing an electric detonator

The present invention relates to an electric detonator ( 1 ) comprising a cap ( 2 ), comprising a priming charge ( 3 ) and an electrode ( 4 ), comprising a positive pole, a negative pole and a resistor element ( 8 ), the said priming charge ( 3 ) comprising at least two primary explosives, a first primary explosive ( 9 ) and a second primary explosive ( 10 ), and at least one secondary explosive ( 11 ). The electric detonator is characterized in that the two primary explosives ( 9, 10 ) and the secondary explosive ( 11 ) are arranged in layers, in an increasing degree of sensitivity, bearing one against the other, wherein the first primary explosive ( 9 ), constituting the most sensitive of the two primary explosives ( 9, 10 ), is arranged closest to the resistor element ( 8 ), and in that the second primary explosive ( 10 ) is arranged thereafter between the first primary explosive ( 10 ) and the secondary explosive ( 11 ). The invention also relates to a production method for the said electric detonator ( 1 ).

BISMUTH-BASED ENERGETIC MATERIALS

Energetic compounds based on bismuth salts with reduced toxicity that are obtained through the reaction of soluble bismuth salts with soluble salts of organic or inorganic energetic compounds based on azides, derivatives aromatic nitro compounds or nitrogenous heterocyclic compounds, together with the methods for their preparation and application. 1. A method for the preparation of energetic compounds based on bismuth salts with reduced toxicity , having properties of primary explosives , said method comprising reacting soluble bismuth salts with the soluble salts of organic or inorganic energetic compounds , wherein the organic or inorganic compounds are based on azides , aromatic nitro compounds , or derivatives thereof , or nitrogenous heterocyclic compounds , thereby forming a bismuth salt having a bismuch cation and an anion selected from the group consisting of an azide anion , an aromatic polynitro nitro anion , or derivative thereof , and a nitrogenous heterocyclic anion.2. A method for the preparation of a soluble bismuth oxo-perchlorate salt for the production of energetic compounds based on bismuth salts with reduced toxicity , having properties of primary explosives , said method comprising:reacting a concentrated perchloric acid with metal bismuth and its oxides or with oxo-carbonates, thereby obtaining bismuth perchlorate; andhydrolysing the bismuth perchlorate by dilution with water, thereby obtaining the soluble bismuth oxo-perchlorate salt.3. The method according to claim 1 , wherein the bismuth cation is selected from the group consisting of Bi(3+) claim 1 , BiO(+) claim 1 , Bi(OH)(+) claim 1 , Bi(OH)(2+) claim 1 , (BiO)OH(4+) claim 1 , and BiO(OH)(6+).4. The method according to claim 1 , wherein the anion is selected from the group consisting of inorganic azides claim 1 , polynitro-phenols claim 1 , polynitro-azido-phenols claim 1 , derivatives of polynitro-diazo-chinones claim 1 , polynitro-furoxanes and five-membered nitrogenous heterocycles.5. ...

Bismuth-based energetic materials

Energetic compounds based on bismuth salts with reduced toxicity that are obtained through the reaction of soluble bismuth salts with soluble salts of organic or inorganic energetic compounds based on azides, derivatives aromatic nitro compounds or nitrogenous heterocyclic compounds, together with the methods for their preparation and application.

DETONATION TRANSFER ASSEMBLY

A detonation transfer assembly is disclosed. A detonation transfer assembly may comprise an external casing comprising an input end and an output end axially opposite the input end, an explosive column spanning axially inside the external casing, a primary explosive disposed within the explosive column, and a secondary explosive disposed within the explosive column axially between the primary explosive and the output end. The primary explosive and/or the secondary explosive may comprise a thermally insensitive initiation material that resists at least one of detonation or thermal degradation in response to temperature increase rate of 3.3° C. per hour over at least twenty hours. 1. A detonation transfer assembly , comprising;an external casing comprising an input end and an output end axially opposite the input end;an explosive column spanning axially inside the external casing;a primary explosive disposed within the explosive column; and 'wherein, at least one of the primary explosive or the secondary explosive comprises a thermally insensitive initiation material that resists at least one of detonation or thermal degradation in response to a temperature increase rate of 3.3° C. per hour over at least twenty hours.', 'a secondary explosive disposed within the explosive column axially between the primary explosive and the output end,'}2. The detonation transfer assembly of claim 1 , wherein the primary explosive comprises lead azide.3. The detonation transfer assembly of claim 1 , wherein the primary explosive comprises copper(I) 5-nitrotetrazolate.4. The detonation transfer assembly of claim 1 , wherein the secondary explosive comprises hexanitrostilbene.5. The detonation transfer assembly of claim 1 , wherein the secondary explosive comprises nonanitroterphenyl.6. The detonation transfer assembly of claim 1 , wherein the primary explosive comprises the same thermally insensitive initiation material as the secondary explosive.7. The detonation transfer assembly of ...

Process for manufacturing a gas generating material

A process for manufacturing a gas generating material includes preparing a wet mixture of a metal azide and a metal oxide without prior mixing of the metal azide and metal oxide in dry form. The metal azide content of the gas generating material is controlled and the possibility of forming hazardous hydrazoic acid fumes is minimized by maintaining the temperature of the wet mixture of gas generating material between 20° C. and 30° C. The possibility of forming hydrazoic acid fumes is further reduced by maintaining the pH of the wet mixture of gas generating materials at or above 10.5. Excess liquid is removed from the wet mixture of gas generating materials so that the wet mixture has a moisture content of approximately 9%. The excess liquid from the wet mixture is recycled and used the formation of additional gas generating material. The wet mixture of gas generating materials, having a moisture content of approximately 9%, is formed through small openings to form extrudate of gas generating material.

Gas generant composition

Nitrogen-generating composition for digestion and method of making same

본 발명은 포화 소화(saturation fire-extinguishing)를 위한 질소-발생 조성물 및 이를 제조하는 방법에 관한 것이다. 이러한 조성물은 25.0 내지 45.0 질량%의 중금속 옥사이드, 12.0 내지 18.0 질량%의 코발트(II) 니트레이트(Co(NO 3 ) 2 )로 개질된 알루미늄 옥사이드 형태의 연소 조절제, 니켈 옥사이드 및 구리 옥사이드의 촉진 첨가제, 100%까지 잔부를 구성하는 알칼리 금속 아지드, 및 100%를 초과하여 0.07 내지 2.0 질량%의 습윤제(건조후 잔류물)로서의 카르복실산 에스테르를 포함한다. 이러한 조성물은 알루미늄 옥사이드를 코발트 니트레이트 및 습윤제와 혼합하고, 혼합물을 정치시키고 건조시켜 제1 혼합물을 제조하고, 별도로 제1 혼합물을 중금속 옥사이드 및 습윤제와, 제2 혼합물이 제조될 때까지 혼합하고, 별도로 알칼리 금속 아지드 분말과 습윤제의 혼합물을, 제3 혼합물이 제조될 때까지 제조하고, 이후에 제2 혼합물 및 제3 혼합물을 동시에 구리 옥사이드 및 니켈 옥사이드와 혼합하고, 제조된 물질을 건조시키고, 과립을 형성시킴으로서 제조된다. FIELD OF THE INVENTION The present invention relates to nitrogen-generating compositions for saturation fire-extinguishing and methods of making them. This composition comprises 25.0 to 45.0 mass % of a heavy metal oxide, 12.0 to 18.0 mass % of a combustion regulator in the form of aluminum oxide modified with cobalt(II) nitrate (Co(NO 3 ) 2 ), a facilitating additive of nickel oxide and copper oxide , alkali metal azides constituting the balance to 100%, and carboxylic acid esters as wetting agents (residue after drying) in excess of 100% from 0.07 to 2.0% by mass. This composition is prepared by mixing aluminum oxide with cobalt nitrate and a wetting agent, allowing the mixture to stand and drying to prepare a first mixture, separately mixing the first mixture with the heavy metal oxide and wetting agent until a second mixture is prepared, Separately prepare a mixture of alkali metal azide powder and wetting agent until a third mixture is prepared, then the second mixture and third mixture are simultaneously mixed with copper oxide and nickel oxide, and the prepared material is dried, It is prepared by forming granules.

A method for preparing an organic light emitting device and am organic light emitting device

1x10 6 V/m의 전계에서의 전자 이동도가 1x10 -6 cm 2 /V·s 이상인 유기 반도체 물질 및 금속 아지드화물을 진공 공증착하는, 전자 주입층 형성 단계를 포함한 유기 발광 소자의 제조 방법이 제공된다. 또한, 1x10 6 V/m의 전계에서의 전자 이동도가 1x10 -6 cm 2 /V·s 이상인 유기 반도체 물질 및 금속 아지드화물을 진공 공증착함으로써 형성된 전자 주입층 구비한 유기 발광 소자가 제공된다. A method of manufacturing an organic light emitting device including an electron injection layer forming step of vacuum-depositing an organic semiconductor material and a metal azide having an electron mobility of 1 x 10 -6 cm 2 / V · s or more in an electric field of 1 × 10 6 V / m / RTI > There is also provided an organic light emitting device having an electron injection layer formed by vacuum co-depositing an organic semiconductor material and a metal azide having an electron mobility of 1 x 10 -6 cm 2 / V · s or more in an electric field of 1 × 10 6 V / m . 유기 발광 소자 Organic light emitting device

Alkali metal azide particles

본 발명은 대부분이 거의 구형이며 스펀지 구조를 갖고 초음파 분산처리시 체적 평균입자 크기 비가 0.4 이하인 것이 바람직한 알칼리 금속 아지드 입자에 관한 것이다. The present invention relates to alkali metal azide particles, most of which are almost spherical, have a sponge structure, and preferably have a volume average particle size ratio of 0.4 or less in ultrasonic dispersion treatment. 본 발명에 따른 알칼리 금속 아지드 입자의 자기 분해성은 매우 약하므로 다량으로 간단히 취급될 수 있고 자동차 에어백용 기체발생제로 매우 유용하다. The self-decomposability of the alkali metal azide particles according to the present invention is so weak that it can be easily handled in large quantities and is very useful as a gas generator for automobile airbags.

Solid pyrotechnic fuel

Electric detonator and method for producing an electric detonator

본 발명은, 전폭 장약(3)을 포함하는 캡(2) 그리고 양극, 음극 및 저항 소자(8)를 포함하는 전극(4)을 포함하는 전기 뇌관(1)으로서, 상기 전폭 장약(3)은 적어도 2가지의 1차 폭발물, 즉 제1의 1차 폭발물(9) 및 제2의 1차 폭발물(10), 그리고 적어도 하나의 2차 폭발물(11)을 포함하는 것인 전기 뇌관에 관한 것이다. 전기 뇌관은, 2가지의 1차 폭발물(9, 10) 및 2차 폭발물(11)이 서로 지탱되어 감도를 향상시키도록 층상으로 배치되는 것을 특징으로 하며, 여기서 2가지의 1차 폭발물(9, 10) 중 가장 민감한 폭발물을 구성하는 제1의 1차 폭발물(9)은 저항 소자(8)에 가장 근접하게 배치되고, 제2의 1차 폭발물(10)은 이후에 제1의 1차 폭발물(9)과 2차 폭발물(11) 사이에 배치되는 것을 특징으로 한다. 본 발명은 또한 상기 전기 뇌관(1)의 제조 방법에 관한 것이다. The present invention is an electrical primer (1) comprising a cap (2) comprising a full charge (3) and an electrode (4) comprising an anode, a cathode and a resistance element (8), wherein the full charge (3) is An electrical primer comprising at least two primary explosives, namely a first primary explosive 9 and a second primary explosive 10, and at least one secondary explosive 11. The electric primer is characterized in that the two primary explosives 9 and 10 and the secondary explosives 11 are arranged in layers so as to be supported by each other to improve the sensitivity, wherein the two primary explosives 9, The first primary explosive 9 constituting the most sensitive explosive 10 of 10) is disposed closest to the resistance element 8, and the second primary explosive 10 is then referred to as the first primary explosive ( And 9) and the secondary explosive 11. The invention also relates to a method of manufacturing the electrical primer 1.

Nitrogen-generating composition for fire extinguishing and method for its production

FIELD: chemistry. SUBSTANCE: invention relates to a nitrogen-generating composition of volumetric fire extinguishing and a method for production thereof. Nitrogen-generating composition containing alkali metal azide, heavy metal oxide, combustion modifier in form of aluminium oxide modified with cobalt (II) nitrate, with promoting additives of nickel oxide and copper oxide and a humidifier, is obtained by stage-by-stage mixing of dry components with a humidifier and combination of the obtained mixtures. Prior to formation of granules from obtained mass, it is dried to maximum possible removal of solvent residues. EFFECT: technical result is elimination of content of free sodium in gaseous phase and metallic sodium in combustion products slime, reduced concentration of toxic gases behind section of fire extinguishing generator nozzle, reduced pressure in combustion chamber and temperature of gas jet, increased gas output of generator and thus increased safety of operation and efficiency of fire extinguishing. 11 cl, 2 dwg, 1 tbl, 6 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 694 773 C1 (51) МПК A62D 1/06 (2006.01) C06B 35/00 (2006.01) C06D 5/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК A62D 1/06 (2019.02); C06B 35/00 (2019.02); C06D 5/06 (2019.02) (21)(22) Заявка: 2018133432, 21.09.2018 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Естиконде Инвестмент Лимитед (CY) Дата регистрации: 16.07.2019 (45) Опубликовано: 16.07.2019 Бюл. № 20 2 6 9 4 7 7 3 R U (54) АЗОТОГЕНЕРИРУЮЩИЙ СОСТАВ ДЛЯ ПОЖАРОТУШЕНИЯ И СПОСОБ ЕГО ПОЛУЧЕНИЯ (57) Реферат: Изобретение относится к азотогенерирующему растворителя. Техническим результатом является составу объемного пожаротушения и способу его исключение содержания свободного натрия в получения. Азотогенерирующий состав, газовой фазе и металлического натрия в шламе содержащий азид щелочного металла, оксид продуктов сгорания, снижение концентрации ...

Gas generator for vehicle occupant restraint

본 발명의 차량 탑승자 보호구 조립체(12)는 팽창가능한 차량 탑승자 보호구(20), 하우징(14), 하우징내의 가스 발생물(16), 가스 발생물 점화용의 점화기(18) 및 발생된 가스를 차량 탑승자 보호구로 인도하기 위한 가스 유동 수단(22)를 구비한다. 차량 탑승자 보호구는 에어백인 것이 적합하다. 가스 발생물(16)은 (a) 알칼리 금속 아지드화물, 알칼리 토금속 아지드화물 또는 알루미늄 아지드화물과, (b) 제 2 철 산화물(Fe 2 O 3 )의 감마 형태인 금속 산화제를 포함한다. 금속 산화제는 가스 발생 조성물중에 대략 금속 아지드화물에 대해 화학식의 이론혼합량으로, 또는 이를 약간 초과하는 양으로 존재한다. The vehicle occupant protector assembly 12 of the present invention includes an inflatable vehicle occupant protector 20, a housing 14, a gas generating product 16 in the housing, an igniter 18 for igniting the gas generating product and a generated gas. And gas flow means 22 for leading to the occupant protection. The vehicle occupant protection is preferably an airbag. Gas generation 16 comprises (a) an alkali metal azide, alkaline earth metal azide or aluminum azide, and (b) a metal oxidant in the gamma form of ferric oxide (Fe 2 O 3 ). . The metal oxidant is present in the gas generating composition in an approximate amount of the formula, or slightly above the metal azide.

IGNITION SYSTEM FOR STABLE HIGH TEMPERATURE PROPULSION AGENTS

PYROTECHNIC COMPOSITION GENERATING NON-TOXIC GASES COMPRISING A MINERAL BINDER AND ITS MANUFACTURING METHOD.

Patent FR2309493B1

Patent FR2326391B1

AZOTIDE-BASED COMPOSITION, GAS GENERATOR

PROCESS FOR THE PREPARATION AND TREATMENT OF PROPELLANTS.

Non-toxic non-corrosive gas generating compsn - comprising alk metal azide and anhyd chromic chloride

Gas-generating compsn. which on combustion yields non-toxic odourless gas and a non-corrosive, odourless solid residue consists of 2.8-3.2 moles. Na, K or Li, aside and 0.8-1.2 moles. anhydr. chromic chloride. It also pref. contains 5-15 wt. % Al2O3 as a heat sink. It is esp useful for inflating automobile crash bags, but also for life-rats, escape ladders etc. A typical pref. comp. consists of 50.16% NaN3, 40.75% anhyd. CrCl3 and 9.09% Al2O3.

PYROTECHNIC COMPOSITION GENERATING NON - TOXIC GASES COMPRISING A MINERAL BINDER AND METHOD FOR MANUFACTURING THE SAME.

La présente invention concerne les compositions pyrotechniques génératrices de gaz non toxiques destinés à gonfler, en cas d'accident, les coussins de protection pour occupants d'un véhicule automobile. Les compositions selon l'invention contiennent un azoture, un oxydant minéral et, de manière caractéristique, entre 5 % et 40 % en poids d'un liant minéral qui est le produit d'une réaction de polycondensation minérale de mélanges à base de silico-aluminates alcalins. Préférentiellement le liant est le produit de polymérisation d'un silico-aluminate de formule (Si2 O5 , Al2 O2 ) et de silice SiO2 en présence de soude et/ou de potasse aqueuse. Après mélange et mise en forme des différents constituants de la composition, on assure dans un premier temps la polymérisation du dit liant par chauffage dans une enceinte fermée étanche et dans un deuxième temps on assure le séchage de la composition. Les compositions avec liant minéral selon l'invention présentent une résistance mécanique et une tenue à l'humidité supérieures à celles présentées par des compositions équivalentes sans liant. The present invention relates to pyrotechnic compositions which generate non-toxic gases intended to inflate, in the event of an accident, the protective cushions for the occupants of a motor vehicle. The compositions according to the invention contain an azide, an inorganic oxidant and, typically, between 5% and 40% by weight of an inorganic binder which is the product of an inorganic polycondensation reaction of mixtures based on silicones. alkali aluminates. Preferably, the binder is the polymerization product of a silico-aluminate of formula (Si2 O5, Al2 O2) and of silica SiO2 in the presence of sodium hydroxide and / or aqueous potassium hydroxide. After mixing and shaping of the various constituents of the composition, the polymerization of said binder is firstly ensured by heating in a sealed closed chamber and, secondly, the composition is dried. The ...

Gas producing composition and process for its preparation.

THERMOSTABLE PYROTECHNIC PERCUSSION COMPOSITION

Vehicle occupant suppressor assembly and gas generating composition used therein

본 발명은 차량 탑승자 억제장치 조립체(12)에 관한 것이다. 본 발명의 조립체는 차량 탑승자 억제장치(20), 하우징(14), 하우징 내부의 기체 발생 조성물(16), 기체 발생 조성물을 점화시키기 위한 점화기(18), 및 기체를 차량탑승자 억제장치내로 향하게 하는 기체 유동 수단(22)을 포함한다. 본 발명의 바람직한 실시양태에 있어서, 차량 탑승자 억제장치(20)는 에어백이다. 기체 발생 조성물(16)은 아지드화 리튬(Li 3 N)과 금속 산화제(MeO, 이때 O는 산소 또는 황일 수 있음)를 포함한다. 금속 산화제는 아지드화 리튬에 대하여 화학양론적인 양 이하의 양으로 존재한다. 기체 발생 조성물(16)은, 점화시에, 본질적으로 리튬 원소가 없는 연소 생성물과 질화 리튬(Li 3 N)을 생성시키는 반응 조건하에 연소한다.

PROCESS FOR THE PREPARATION OF WET EXPLOSIVES

Igniter cord

Gas generator for restraining vehicle occupants

Mixture of materials for gas generation

The invention relates to a mixture of materials for generating gases in a gas generator. The mixture of materials consists of a mixture of 70 to 90 per cent by weight of sodium azide (NaN3), zero to 30 per cent by weight of a binary oxide material and zero to 30 per cent by weight of an activator material. The mixture of materials has the advantage that the residue remaining after burning off does not contain any elemental sodium and therefore does not react with water.

Pyrotechnic compositions for gas generation

Gas generating compositions

Electric detonator and method for producing an electric detonator

The present invention relates to an electric detonator (1) comprising a cap (2), comprising a priming charge (3) and an electrode (4), comprising a positive pole, a negative pole and a resistor element (8), the said priming charge (3) comprising at least two primary explosives, a first primary explosive (9) and a second primary explosive (10), and at least one secondary explosive (11). The electric detonator is characterized in that the two primary explosives (9, 10) and the secondary explosive (11) are arranged in layers, in an increasing degree of sensitivity, bearing one against the other, wherein the first primary explosive (9), constituting the most sensitive of the two primary explosives (9, 10), is arranged closest to the resistor element (8), and in that the second primary explosive (10) is arranged thereafter between the first primary explosive (10) and the secondary explosive (11). The invention also relates to a production method for the said electric detonator (1).

Gas generator grain

Metal oxide/azide gas generating compositions

ABSTRACT OF THE DISCLOSURE A gas generating composition containing nickel oxide or iron oxide and an alkali metal or alkaline earth metal azide, preferably fabricated in the form of tablets or granules. Upon ignition the composition generates nitrogen gas. The gas generating reaction takes place at a relatively low temperature and the solid products of the reaction form a sinter that is readily retained by a filter. The composition is useful for inflating the bags of automobile passive restraint systems.

Metal oxide containing gas generating composition

A gas generating composition comprising ammonium nitrate and a non-toxic metal oxide which reduces the pressure exponent and enables the composition to sustain combustion at or near atmospheric pressure, thereby improving combustion efficiency. The composition is useful for various purposes, such as inflating a vehicle occupant restraint, i.e., an air bag for an automotive vehicle or aircraft, as well as aircraft escape chutes or the like.

Gas generator for a vehicle occupant restraint system

Pyrotechnic composition containing an inorganic binder, which generates à non-toxic gas and its method of manufacture

Patent JPS5183093A

Propellant for the generation of non-toxic propellant gases

COMPOSITIONS THAT GENERATE GAS

Lead azothhydride compositions

Propelling a spacecraft in space

A propulsion system for propelling a spacraft in space utilises a solid composition (1) containing sodium azide and an oxidiser which is ignited and thereby reacted to produce a stream of nitrogen gas. The nitrogen gas is either vented directly to space via a nozzle means (7) to provide propulsion for the spacecraft or fed into a tank (3) of liquid propellant (4) to urge the liquid propellant (4) towards a propulsion unit (5) of the spacecraft. <IMAGE>

Ignition system for high temperature resistant propellants

Improvements to processes for obtaining easily flammable lead azides

POROUS GRAIN OF ERGOL AND ITS PREPARATION METHOD

Gas generating composition

ABSTRACT OF THE DISCLOSURE A nitrogen gas generating composition is provided which consists of particles of metal oxides having a surface coating thereon of an alkali metal azide or an alkali earth metal azide, The composition in this form demonstrates improved properties of burn rate and ignition delay time, low toxicity of ignition products and safe handling character-istics.

Process for the preparation of explosives by a wet route

Process for the preparation of pyrotechnic compositions containing at least one explosive substance, of the type comprising a stage of synthesis of the explosive substance from at least two compounds, then a stage of mixing this substance with additives. It is characterised in that, in the same single emulsion: - the stage of synthesis of the explosive substance from at least two nonexplosive compounds is performed, - the stage of mixing is performed simultaneously or successively in the same emulsion by adding thereto a binder in solution in a solvent, this binder being next cured by extraction of the solvent. After curing of the binder, the composition is filtered and dried. Application to the manufacture of primary explosives and of various pyrotechnic compositions.

NITROGEN PYROTECHNICAL GAS PRODUCTIVE COMPOSITION ESPECIALLY SUITABLE FOR USE IN INFLATABLE SAFETY DEVICES

Process for the production of non-toxic, gas-generating solid propellants and propellants thus produced.

Process for making an azide gas generant.

Priming composition which is sensitive to percussion and a method for preparing it

A priming composition with an elevated thermal stability, which is sensit to percussion, is disclosed. The priming composition comprises a tetrazolic ring containing primary explosive and a sensitivity additive. The sensitivity additive comprises an oxidizing agent and a reducing agent. 40 to 95 weight percent of the priming composition is the primary explosive, 2.5 to 40 weight percent of the priming composition is the oxidizing agent and 2.5 to 40 weight percent of the priming composition is the reducing agent. The priming composition is applied to heads of percussion fuses.

Lead azide initial set with improved flame ignition sensitivity and process for its manufacture

Lead azide primer

Copper-based suspension and preparation method thereof

本发明公开了一种铜基悬浮液，含能材料领域，由铜基粉体、聚乙烯醇、硼酸和水组成。其制备方法为：将一定量的聚乙烯醇和硼酸溶于水，混合均匀后加入氧化铜或铜粉，搅拌反应一定时间后冷却至室温即得铜基悬浮液。采用本发明方法制备的铜基悬浮液，具有较宽的粉体含量范围、较好的耐沉降性能以及溶剂易去除等特点，可以为叠氮化铜、铜基烟火药提供氧化铜和铜粉前体。

Abrasion resistant gas generating compositions for use in inflating safety crash bags

An abrasion resistant granular gas generating composition comprising a metallic azide, oxidizers for the azide, and a small amount of a novel cured polymeric binder having a relatively high oxygen content and prepared entirely from solid binder ingredients having a melting point in the range of 45* C to 130* C. The compositions are resistant to abrasion during long storage periods and when ignited produce predominately non-toxic gases.

Gas-generating, acid-free composition that results in combustion products that are easy to filter.

NITROGEN PYROTECHNICAL COMPOSITION WITH REDUCED OXYGEN CONTENT

PERCUSSION-SENSITIVE THERMOSTABLE PYROTECHNICAL COMPOSITION.

A novel percussion-sensitive pyrotechnic detonator compsn., which is stable at upto 100 deg.C, comprises a mixt. of a primary explosive consisting of silver azide and selenium, tellurium and/or sulphur powder. Pref. the mixt. comprises 50-99 wt.% primary explosive and 1-50 wt.% Se, Te and/or S powder.

Enhanced thermal and ignition stability azide gas generant

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 3×10EXP(-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.

STABILIZED DRIVING SET FOR THE PRODUCTION OF NON-TOXIC GAS.

Alkali metal azide particles

Process for making a gas generating composition

Non-toxic non-corrosive gas generating compsn - comprising alk metal azide and anhyd chromic chloride

Gas-generating compsn. which on combustion yields non-toxic odourless gas and a non-corrosive, odourless solid residue consists of 2.8-3.2 moles. Na, K or Li, aside and 0.8-1.2 moles. anhydr. chromic chloride. It also pref. contains 5-15 wt. % Al2O3 as a heat sink. It is esp useful for inflating automobile crash bags, but also for life-rats, escape ladders etc. A typical pref. comp. consists of 50.16% NaN3, 40.75% anhyd. CrCl3 and 9.09% Al2O3.

Priming charge for fulminating capsules and method of preparation thereof

Randtennings-priming compositions

IGNITION SYSTEM FOR DRIVE CHARGES.

Structure for generating gas

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

PROCESS FOR THE PREPARATION OF A PYROTECHNIC, NITROGENIC PRODUCT WITH AN UNDERTAKING OXYGEN THAT MAINTAINS NON-TOXIC GASES.

Particulate collection by condensing gas generant, air bag inflator

PATENT ABSTRACT OF THE DISCLOSURE Particles of glass or silica type material are added to pellets of gas generating material as the gas generating material is being loaded into the combustion chamber of a gas generator or inflator. When the inflator is fired, the liquids and gases produced by the resulting rapid combustion process are cooled and condensed by the particles of glass or silica type material to a solid inside the combustion chamber near the exit ports or outlet holes thereof. This dramatically reduces the amount of combustible particle residue or particulates that leave the inflator.

Metal nitrogen-rich compound FeN 8 Method of synthesis of

本发明属于过渡金属化合物合成技术领域，具体涉及一种金属富氮化合物FeN 8 的合成方法，1、将氯化铁和叠氮化钠粉末以质量比4:5混合，混合后的物料置于研钵中进行研磨，直至物料颗粒的粒径小于5μm；2、取研磨后的混合物装入DAC装置作为反应前驱物，向DAC装置中充入液氩提供静水压条件；3、通过DAC装置将混合物加压至50GPa；4、通过激光加热器对混合物加热，激光功率为20W，加热时间为12分钟，最终获得金属富氮化合物FeN 8 。利用金属氯化物和叠氮化物合成金属富氮化合物的制备方法，该化合物中氮原子以N 6 单元形式存在，能量密度可达2.06kJ/g，是一种潜在的高含能材料。

Gas generating azide containing composition for inflatable devices.

IGNITION SHAFT CONTAINING TETRAZEES.

Gas generating composition for air bags

ABSTRACT The invention disclosed herein is a gas generating composition suitable for use in air bag systems. The gas generating composition is comprised of a solid metal azide as a fuel, an alkali nitrate as an oxidizer, and diotomaceous earth as an additive.

Composition and process for inflating a safety crash bag

Composition and process for inflating an automobile or aircraft safety crash bag comprising igniting at elevated pressure a pyrotechnic material comprising at least one tetrazole or triazole compound containing hydrogen in the molecule, at least one oxygen containing oxidizer compound, and at least one metal oxide to generate a gas which is admixed with air by means of an aspirating venturi and thereafter utilized to inflate the crash bag.

Gas generating agent composition

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

GAS GENERATING SOLID COMPOSITION AND ITS USE IN GAS GENERATORS FOR INFLATABLE CUSHIONS FOR PROTECTING PASSENGERS IN A MOTOR VEHICLE

La présente invention concerne de nouvelles compositions pyrotechniques génératrices de gaz froids non toxiques. Les compositions selon l'invention contiennent entre 55 % et 71 % en poids d'azoture alcalin ou alcalino-terreux, entre 25 % et 40 % en poids de sulfure de molybdène et entre 3 % et 6 % en poids d'un liant constitué par le produit de réaction d'un polyazoture de glycidyle à terminaisons hydroxyles avec au moins un polyisocyanate. Une composition préférée comprend 35 % en poids de sulfure de molybdène, 60 % en poids d'azoture de sodium et 5 % en poids d'un liant obtenu par réaction d'un polyazoture de glycidyle à terminaisons hydroxyles OH de masse 2 000 sur le biruet trimère de l'hexaméthylène diisocyanate. Les compositions selon l'invention sont beaucoup moins sensibles aux agressions extérieures, et notamment à l'humidité, que les compositions traditionnelles à base d'azoture et de sulfure de molybdène. Elles conviennent particulièrement bien aux générateurs de gaz froids non toxiques destinés à gonfler les coussins de sécurité des véhicules automobiles. The present invention relates to novel pyrotechnic compositions which generate non-toxic cold gases. The compositions according to the invention contain between 55% and 71% by weight of alkaline or alkaline-earth azide, between 25% and 40% by weight of molybdenum sulfide and between 3% and 6% by weight of a binder consisting by the reaction product of a hydroxyl terminated glycidyl polyazide with at least one polyisocyanate. A preferred composition comprises 35% by weight of molybdenum sulphide, 60% by weight of sodium azide and 5% by weight of a binder obtained by reacting a polycarbonate with hydroxyl OH end groups of mass 2000 on the biruet trimer of hexamethylene diisocyanate. The compositions according to the invention are much less sensitive to external attack, and in particular to humidity, than traditional compositions based on azide and molybdenum ...

Process for the manufacture of heavy metal azides suitable for being charged, and products resulting from this process

Gas generating composition and method of preparing compression-molded articles therefrom

SOLID GAS GENERATOR COMPOSITION AND ITS USE IN GAS GENERATORS FOR AIR BAGS FOR PROTECTING PASSENGERS OF A MOTOR VEHICLE

GAS GENERATING COMPOSITION FOR AIR CUSHIONS

Patent FR2292687B1

Metal oxide containing gas generating composition

A gas generating composition comprising ammonium nitrate and a non-toxic metal oxide which reduces the pressure exponent and enables the composition to sustain combustion at or near atmospheric pressure, thereby improving combustion efficiency. The composition is useful for various purposes, such as inflating a vehicle occupant restraint, i.e., an air bag for an automotive vehicle or aircraft, as well as aircraft escape chutes or the like.

Azide propellant compositions for emergency deballasting of submersible vessels

Under emergency conditions such as loss of control or the means of propulsion, a submersible vessel may be deballasted with the use of a plurality of solid fueled gas generators each provided with a propellant composition comprising a blend of an alkali metal azide and an alkali metal nitrate, wherein the ratio of the azide to the nitrate ranges from above stoichiometric to an amount which will result in the production of no more than about 13-14 % by volume of hydrogen in the deballasting gas upon deflagration of the propellant. In an alternate embodiment, a deballasting propellant which forms no hydrogen gas comprises a substantially stoichiometric blend of an alkali metal azide and an alkali metal nitrate, combined with an additive formed of an inert silicon-containing material such as silicon dioxide and a metal oxide, wherein the metal component of the oxide melts at a sufficiently high temperature so as to remain substantially solid during deflagration of the propellant. The additive serves to bind molten particulates produced upon deflagration of the propellant into a solid clinker and thus to prevent this material from passing into the ballast tanks.

Copper-based suspension and preparation method thereof

本发明公开了一种铜基悬浮液，含能材料领域，由铜基粉体、膨润土和溶剂组成。其制备方法为：步骤1：将一定量的膨润土加入到溶剂中，搅拌一定时间后加入极化剂；步骤2：再搅拌一定时间后加入铜基粉体；步骤3：再搅拌一定时间得铜基悬浮液。采用本发明方法制备的铜基悬浮液，具有较宽的粉体含量范围、较好的耐沉降性能以及溶剂易去除等特点，可以为叠氮化铜、铜基烟火药提供氧化铜和铜粉前体。

Process for manufacturing a gas generating material

Additive approach to ballistic and slag melting point control of azide-based gas generant compositions

Gas generant pyrotechnic compositions especially suitable for inflating vehicle occupant restraint systems with nitrogen gas are described. The compositions are comprised (in wt.%) of about 65-74% of an azide, preferably sodium azide; about 17-29.5% of iron oxide, preferably ferric oxide; and about 1.0-6% metal nitrite or nitrate co-oxidizer, preferably sodium nitrate; to which base composition is added about 0.5-8% silica, alumina, titania or mixtures thereof; up to 6% bentonite and up to 4% molybdenum disulfide. Preferred driver and passenger side formulations are disclosed. The compositions burn at a rate of from about 0.8 to 1.5 inches per second, and have excellent slag and clinker properties, as well as excellent aging and mechanical strength characteristics when formed into cylindrical pellets or wafers. The formulation ingredients are amenable to water slurry mixing, spray drying and machine pressing into cylindrical pellets or wafers for insertion into a suitable gas generating device.

Gas-forming mixtures containing metal oxides

(57)【要約】 硝酸アンモニウムと非毒性の酸化金属とを含む気体生成混合物であって、圧力指数を低減し、大気圧下あるいはその近傍における燃焼の維持するとともに、燃焼効率を改善する。上記混合物は、乗員拘束器、すなわち飛行機の避難滑降路あるいはその同等物と同様に自動車や飛行機におけるエアバックを膨らませるなど、種々の目的において有益である。

Process for the manufacture of ignition kits

Porous propellant grain and method of making same

A process for preparing a porous propellant grain which comprises blending at least two combustible materials to form a homogeneous mixture, adding a predetermined amount of a liquid dispersant to said mixture to form a slurry, and flash drying the slurry in order to form a porous, single grain propellant having a greatly increased burning surface. A single grain propellant is produced having a flat, torroidal shape with a central cylindrical core and honeycombed with a plurality of porous channels extending entirely through the grain to increase the burning surface thereof.

Azide gas generating composition for inflatable devices

Gas generating compositions containing an inorganic metal azide, a primary metal oxide oxidizing compound and a secondary oxidizing compound in combination with clay as a means of controlling the burn rate. Metal nitrates are preferred as the secondary oxidizing compound.

Azide gas generant formulations

A gas generant composition especially adapted for inflating automotive airbags in the event of a vehicle collision to protect the occupants of the vehicle from injury. The composition consists essentially of 65-74% alkali metal azide; 10-28% ferric oxide; 6-16% sodium nitrate; 0.1-2% fumed silica; and 0-2% molybdenum disulfide. The composition burns at from about 1.2 to about 1.7 inches per second (about 3.0 to about 4.3 cm/sec).

Gas generating composition

ABSTRACT OF THE DISCLOSURE A nitrogen gas generating composition is provided which consists of a stoichiometric mixture of an alkali metal azide or an alkali earth metal azide and a doped iron oxide of high chemical reactivity, The doped iron oxide contains up to 1.0% by weight of another metal oxide impregnated into its particle lattice. The resulting composition has improved properties of ignition delay time, total burn time, filter-ability and reduced toxic by-products.

New process for using and charging lead azide

Process for producing a solid composition filler which produces a non-toxic gas

Gas generator for an airbag

A gas generator (1) which can be used in a versatile fashion and is small in size can be produced in an inexpensive manner. In order to achieve this, the gas generator (1) is essentially composed of a cylindrical container (2) having a granular charge (3), spacing elements (27, 30), a low pressure chamber (29), a filter (25) and holding elements (8, 9). The container (2) serves as a high-pressure chamber. The gas-generating charge (3) is burnt off at a very low pressure. The pressure curve as the gas-generating charge (3) is burnt off is regulated solely by the gas bores (20). The filter (25) is used for fine adjustment of the pressure curve. This is carried out by means of appropriate choice of the mesh shape and thickness of the material used. <IMAGE>

MEDITERRANEOUS TENDRIC TENSIVE TETRAZENAL TENDER MIXTURE AND USE OF TENDER MIXTURE

Carbon nanotubes containing confined copper azide

The invention concerns copper azide containing carbon nanotubes. The invention also concerns methods of producing such nanotubes by placing CuO nanoparticles within carbon nanotubes to produce CuO-containing carbon nanotubes, contacting CuO-containing carbon nanotubes with hydrogen to produce reduced nanotubes; and contacting the reduced nanotubes with hydrazoic acid to produce copper azide containing carbon nanotubes.

PROCESS FOR MANUFACTURING FILLERS OF SOLID COMPOSITION GENERATING NON-TOXIC GASES AND FILLERS THUS OBTAINED

Gas-generating composition

ABSTRACT OF THE DISCLOSURE Provided herein is a gas-generating composition which forms combustion residues that can be easily captured. The gas-generating composition is composed of an azide of alkali metal or alkaline earth metal, oxidizer, and 0.1 to 10 wt% of one or two kinds of solder glass represented by BaO?SiO2?PbO?Alkali or B2O3?TiO3?SiO2?Na2O. The incorporation of solder glass reduces the weight of the filter to capture combustion residues by 5 to 30 wt%.

PYROTECHNICAL MIXTURE AND GAS GENERATOR FOR AN AIRBAG