EP1538137B1 - Gaserzeugende zusammensetzung - Google Patents

Gaserzeugende zusammensetzung Download PDF

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Publication number
EP1538137B1
EP1538137B1 EP03793453.6A EP03793453A EP1538137B1 EP 1538137 B1 EP1538137 B1 EP 1538137B1 EP 03793453 A EP03793453 A EP 03793453A EP 1538137 B1 EP1538137 B1 EP 1538137B1
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EP
European Patent Office
Prior art keywords
basic
gas generating
nitrate
generating composition
mass
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EP03793453.6A
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English (en)
French (fr)
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EP1538137A1 (de
EP1538137A4 (de
Inventor
Jianzhou Wu
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Daicel Corp
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Daicel Corp
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    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/04—Compositions characterised by non-explosive or non-thermic constituents for cooling the explosion gases including antifouling and flash suppressing agents
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D5/00—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets
    • C06D5/06—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets by reaction of two or more solids

Definitions

  • the present invention relates to a gas generating composition suitable for an airbag restraining system of an automobile or the like, a molded article thereof, and an airbag inflator using them.
  • compositions containing sodium azide have been often used as airbag gas generating agents for occupant-protecting devices in automobiles.
  • gas generating compositions containing various kinds of nitrogen-containing organic compounds have been developed as so-called non-azide gas generating compositions.
  • U.S. Pat. No. 4,909,549 discloses a composition that includes a hydrogen-containing tetrazole, a triazole compound and an oxygen-containing oxidizing agent.
  • U.S. Pat. No. 4,370,181 discloses a gas generating composition that includes a metal salt of bitetrazole containing no hydrogen and an oxidizing agent containing no oxygen.
  • U.S. Pat No. 4,369,079 discloses a gas generating composition that includes a metal salt of bitetrazole containing no hydrogen and alkali metal nitrate; alkali metal nitrite; alkaline earth metal nitrate; alkaline earth metal nitrite or a mixture thereof.
  • 5,542,999 discloses a gas generating agents that includes fuel such as GZT, triaminonitroguanidine (TAGN), nitroguanidine (NG) or NTO; basic copper nitrate; a catalyst for decreasing toxic gas and a coolant.
  • JP-A 10-72273 discloses a gas generating agent that includes a metal salt of bitetrazole; an ammonium salt of bitetrazole; aminotetrazle and ammonium nitrate.
  • non-azide-based gas generating compositions have a disadvantage such that small amounts of toxic carbon monoxide and nitrogen oxides are generated because each of the composition contains carbon, nitrogen and oxygen in general.
  • the non-azide-based gas generating agents have so high combustion temperatures that they may need a large amount of coolant in actual use.
  • a metal oxide or a DeNOx agent a nitrogen-oxide reducing agent
  • a heavy-metal oxide such as V 2 O 5 /MOO 3 is added as a catalyst for reducing the produced amounts of toxic carbon monoxide and nitrogen oxides.
  • the heavy-metal oxide is considered to be toxic, and addition of a metal oxide leads to a decrease of efficiency of gas generation from the gas generating agent.
  • WO 98/04507 discloses reduction of the produced amount of a nitrogen oxide in combustion gas by using a combination of a DeNOx agent such as ammonium sulfate, ammonium carbonate or urea and a gas generating agent.
  • a DeNOx agent such as ammonium sulfate, ammonium carbonate or urea
  • a gas generating agent such as ammonium sulfate, ammonium carbonate or urea
  • a gas generating agent such as ammonium sulfate, ammonium carbonate or urea
  • a gas generating agent such as ammonium sulfate, ammonium carbonate or urea
  • a gas generating agent such as ammonium sulfate, ammonium carbonate or urea
  • the oxidizing agent in the gas generating agent will be consumed and a produced amount of toxic carbon monoxide is increased.
  • EP 1254880 A1 relates to a gas-generating composition
  • a gas-generating composition comprising a triazine derivative, a basic metal nitrate, a binder and, optionally, an additive.
  • EP 1241138 A1 discloses a gas-generating composition
  • a gas-generating composition comprising at least one guanidine derivative selected from the group consisting of tetrazole derivatives, guanidine, guanidine carbonate, nitroguanidine, dicyandiamide, nitroaminoguanidine and nitroaminoguanidine nitrate, and further a basic metal nitrate.
  • US 5, 656, 793 discloses a gas-generating composition
  • a gas-generating composition comprising a hydrazodicarbonamide serving as a reducing agent for generating a gas when oxidized, an oxoacid salt serving as an oxidizing agent for oxidizing the reducing agent, and a combustion controller with a catalytic function which contains at least one element selected from the group consisting of boron, aluminum and zirconium.
  • EP 0801045 A1 discloses an airbag gas-generating composition
  • an airbag gas-generating composition comprising as an active components biscarbamoylhydrazine as a gas-generating base, an oxohalogen acid salt as an oxidizing agent, a nitrate as an oxidizing agent, and a burning catalyst.
  • EP 1415962 relates to a gas-generating composition
  • a gas-generating composition comprising a fuel and a metal containing oxidizing agent.
  • the fuel component comprises triazine derivatives, triazole derivatives, tetrazole derivatives, guanidine derivatives as well as hydrazine derivatives.
  • US 6, 039, 820 discloses a gas generating composition
  • a gas generating composition comprising a complex of a metal cation, at least one neutral ligand containing hydrogen and nitrogen, and sufficient oxidizing anion to balance the charge of the metal cation such that when the complex combusts, a mixture of gases containing nitrogen gas and water vapor is produced; and at least one cool burning organic nitrogen-containing compound.
  • US 3, 862, 866 relates to a deflagration composition for generating a gas comprising principally carbon dioxide and water vapor comprising a substantially homogeneous mixture of:
  • WO 98/17607 discloses an azide-free solid mixture for pyrotechnically generating gas, in particular propellant gas for motor vehicle passenger protection systems, containing a fuel, an oxidizer and a coolant selected from the group of inorganic carbonates.
  • a purpose of the present invention is to provide a gas generating composition having small produced amounts of toxic monoxide carbon and nitrogen oxides in combustion gas of a gas generating agent and having a low combustion temperature; a molded article thereof and an airbag inflator using the same.
  • the inventors of the present invention have completed the present invention by finding out that the produced amounts of toxic carbon monoxide, ammonium and nitrogen oxides in combustion gas can be reduced by selecting a specific combination for a gas generating composition to decrease the combustion temperature.
  • the present invention provides a gas generating composition
  • a gas generating composition comprising the following components (a), (b), and (c) and optionally the component (d) and/or the component (e):
  • the present invention provides a molded article of the gas generating composition, which is obtained by molding the gas generating composition described above, and an airbag inflator using the gas generating composition described above or the molded article of a gas generating composition described above.
  • the gas generating composition and the molded article thereof have low combustion temperatures and small produced amounts of carbon monoxide and nitrogen oxides at the time of combustion.
  • the organic compound to use for the component (a) of fuel in the present invention includes at least one compound selected from guanidine.
  • the guanidine compounds preferably are guanidine nitrates, amino guanidine nitrate, nitro guanidine, triamino guanidine nitrate and the like.
  • the oxygen-containing oxidizing agent to use as the component (b) in the present invention preferably includes at least one selected from: (b-1) basic metal nitrates, nitrate salts and ammonium nitrates and (b-2) perchlorates and chlorates.
  • the basic metallic nitrates of the component (b-1) at least one selected from basic copper nitrates, basic cobalt nitrates, basic zinc nitrates, basic manganese nitrates, basic iron nitrates, basic molybdenum nitrates, basic bismuth nitrates and basic cerium nitrates can be included.
  • the basic metal nitrate has preferably an average particle size of 30 ⁇ m or less, more preferably of 10 ⁇ m or less. Furthermore, the average particle sizes were measured by a particle size distribution method with scattered laser beams. A measured sample is prepared by dispersing a basic metal nitrate in water and exposing it to ultrasonic waves for 3 minutes. A 50%-accumulated value (D50) of the number of particles is determined and an average value of two measurements is taken as an average particle size.
  • D50 50%-accumulated value
  • alkali metal nitrates such as potassium nitrate or sodium nitrate and alkaline earth metal nitrates such as strontium nitrate can be included.
  • the perchlorates and chlorates of the component (b-2) are that having a combustion promotion action as well as an oxidative action.
  • the oxidative action means a function to proceed combustion efficiently with oxygen generated during burning and then another function to decrease the produced amount of toxic gas such as ammonia or carbon monoxide.
  • the combustion promotion action means a function to improve ignition of a gas generating composition and to increase a burning velocity.
  • perchlorates and chlorates at least one selected from ammonium perchlorate, potassium perchlorate, sodium perchlorate, potassium chlorate and sodium chlorate can be included.
  • the aluminum hydroxide to use as the component (c) in the present invention is one used for condensing floating matters in river water for water-purifying procedures of public water supply, for a household non-phosphorus detergent and also as an additive to resin or rubber, having characteristics of a low toxicity and a high decomposition-initiating temperature.
  • the combustion temperature of the gas generating composition is lowered by incorporating aluminum hydroxide so that the composition will act to reduce the produced amounts of toxic nitrogen oxide and carbon monoxide after the combustion.
  • Such reduction of the toxic gas is quite remarkable when the component (b-2) is used as the oxidizing agent.
  • the overall dispersibility of the mixed components (a) to (c) can be improved by adjusting the average particle size of aluminum hydroxide. Therefore the mixing operation is made easier and then ignition of the obtained gas generating composition is improved.
  • the average particle size of aluminum hydroxide is 2 to 30 ⁇ m.
  • the method for measuring the average particle size of the alminum hydroide is the same as one used for measuring the average particle size of the basic metal nitrate.
  • the binder to use as the component (d) in the present invention may be a component to use optionally in combination with the components (a) to (c) or with the components (a) to (c) and the component (e). It is capable of increasing moldability of the gas generating composition and also increasing strength of the molded article of a gas generating composition. When the molding strength of the molded article of a gas generating composition is not high, there is a possibility that the molded article will be broken at actual combustion and burn too rapidly, not being able to control.
  • the additive selected from metal oxides and metal carbides, to use as the component (e) in the present invention, is a component to use optionally in combination with the components (a) to (c) or with the components (a) to (c) and the component (d) and is added for assisting the action of aluminum hydroxide, that is, for decreasing the combustion temperature of the gas generating agent, adjusting the burning velocity thereof and reducing the produced amount of toxic nitrogen oxide and carbon monoxide after combustion.
  • metal oxides such as copper oxide, iron oxide, zinc oxide, cobalt oxide, manganese oxide, molybdenum oxide, nickel oxide, bismuth oxide, silica or alumina
  • metal carbonates or basic metal carbonates such as cobalt carbonate, calcium carbonate, basic zinc carbonate or basic copper carbonate
  • composite compounds of metal oxides or metal hydroxides such as acid clay, porcelain clay(Kaolin), talc, bentonite, diatomaceus earth or hydrotalcite
  • metal acid salts such as sodium silicate, mica molybdate, cobalt molybdate or ammonium molybdate; molybdenum disulfide; calcium stearate; silicon nitride or silicon carbide
  • silicon nitride or silicon carbide can be included.
  • the content of the organic compound provided as the component (a) is 10 to 60% by mass, preferably 5 to 60% by mass, more preferably 10 to 55% by mass;
  • the content of the oxidizing agent provided as the component (b-1) is 10 to 85% by mass, preferably 20 to 70% by mass, more preferably 30 to 60% by mass;
  • the content of the oxidizing agent provided as the component (b-2) is preferably 0.5 to 20% by mass, more preferably 1 to 10% by mass, still more preferably 1 to 5% by mass;
  • the content of the aluminum hydroxide provided as the component (c) is 0.1 to 20% by mass, preferably 3 to 15% by mass, more preferably 4 to 10% by mass.
  • composition example 1 composition example 1
  • composition example 2 (composition example 2)
  • composition example 3 (composition example 3)
  • composition example 4 (composition example 4)
  • compositions (d) and (e) A composition containing either one or both of the components (d) and (e) in addition to the compositions (a) to (c).
  • the content of the component (d) is preferably 20% by mass or less, more preferably 0.5 to 10% by mass, still more preferably 1 to 7% by mass;
  • the content of the component (e) is preferably 20% by mass or less, more preferably 1 to 15% by mass, still more preferably 3 to 10% by mass.
  • composition example 5 (composition example 5)
  • composition example 6 (composition example 6)
  • composition example 7 (composition example 7)
  • composition example 8 (composition example 8)
  • composition example 9 (composition example 9)
  • the gas generating composition of the present invention can be molded in a desired shape, for example a molded article in the shape of a single-perforated cylinder, a porous cylinder or a pellet.
  • the molded article can be manufactured by adding and mixing water or an organic solvent with a gas generating composition and subjecting the resultant mixture to an extrusion molding (a single-perforated or porous cylindrical-shaped molded article) or by subjecting the mixture to a compression molding with a tablet machine or the like (a pellet-shaped molded article).
  • the single-perforated or porous cylindrical-shaped molded article may be either one having a through-hole in the long direction or one having no through-hole but a recess.
  • the gas generating composition of the present invention and the molded article obtained therefrom can be applied to, for example, an airbag inflator for a driver seat, an airbag inflator for a passenger seat, a side-airbag inflator, an inflatable curtain inflator, a knee-bolster inflator, an inflatable seatbelt inflator, a tubular system inflator and a pretensioner gas generator in each of various kinds of vehicles.
  • the inflator using the gas generating composition of the present invention or the molded article obtained therefrom may be either of a pyro type in which gas is supplied only from the gas generating agent or a hybrid type in which the gas is supplied from both compression gas such as argon and the gas generating agent.
  • gas generating composition of the present invention or the molded article obtained therefrom may be used as an igniting agent referred to as an enhancer agent (or a booster) for transferring energy from a percussion cap or a squib to the gas generating agent.
  • an enhancer agent or a booster
  • NQ/SrNO 3 ) 2 (56.9/43.1) 2647 2.96 Ex.1 NQ/Sr(NO 3 ) 2 /Al(OH) 3 (54.1/40.9/5) 2502 2.90 Ex.2 NQ/Sr(NO 3 ) 2 /Al(OH) 3 (51.3/38.7/10) 2341 2.84 Ex.3 NQ/Sr(NO 3 ) 2 /Al(OH) 3 (48.6/36.4/15) 2279 2.80 Com. Ex.
  • NQ/BCN/guar gum (39.4/55.6/5) 2097 2.68 Ex. 13 NQ/BCN/Al(OH) 3 /guar gum (37.0/53.0/5/5) 1950 2.64 Ex. 14 NQ/BCN/Al(OH) 3 /guar gum(34.5/50.5/10/5) 1806 2.6 Ex. 15 NQ/BCN/Al(OH) 3 /guar gum (32.0/48.0/15/5) 1663 2.55 Com. Ex. 7 GN/BCN/guar gum (42.7/52.3/5) 1678 2.86 Ex. 16 GN/BCN/Al(OH) 3 /guar gum (40.0/50.0/5/5) 1564 2.80 Ex. 17 GN/BCN/Al(OH) 3 /guar gum (37.3/47.7/10/5) 1451 2.75 Ex. 18 GN/BCN/Al(OH) 3 /guar gum (34.7/45.3/15/5) 1358 2.70
  • GN guanidine nitrate
  • NQ nitroguanidine
  • BCN basic copper nitrate
  • CMCNa sodium carboxymethylcellulose.
  • the other tables are also shown in the same manner.
  • the average particle size of basic copper nitrate of Table 1 is 4.7 ⁇ m (applied to the other tables) and the average particle size of aluminum hydroxide is 11 ⁇ m (applied to the other tables).
  • the friction sensitivities are higher than 353 N and the drop hammer sensitivities are 40 cm or more. Therefore, the friction drop hammer sensitivities are so insufficient that a good safety can be attained at the time of handling.
  • NQ/Sr(NO 3 ) 2 /Al(OH) 3 /CMCNa (35.3/50.3/5.0/9.4) 11.20 0.52
  • NQ/Sr(NO 3 ) 2 Al(OH) 3 /CMCNa (34.2/49.4/7.0/9.4) 10.35 0.62
  • NQ/Sr(NO 3 ) 2 /Al(OH) 3 /CMCNa (33.1 /48.5/9.0/9.4) 9.47 0.58
  • NQ/BCN/Al(OH) 3 /guar gum (34.5/50.5/10.0/5.0) 12.87 0.24
  • NQ/BCN/Al(OH) 3 /guar gum (32.2/55.8/5.0/7.0) 13.74 0.30
  • NQ/BCN/Al(OH) 3 /guar gum (29.8/53.2/10.0/5.0) 11.28 0.33
  • GN/BCN/Al(OH) 3 /CMCNa (41.3/48.7/5.0/5.0) 7.32 0.22
  • each of the numeric values represented in Examples 25 to 33 shows that practical conditions for the inflator gas generating compositions are satisfied.
  • compositions having compositions shown in Table 4 were prepared. These compositions were molded in the shape of 2 g of strand. Each of the strands was displaced in a closed gas bombé of one litter. Nitrogen gas was purged therein. The pressure was elevated up to 6,860 Pa with nitrogen and the strand was ignited by passage of an electric current through a nichrome wire to burn the strand completely. After approximately 20 seconds from the electrification, the combustion gas was sampled into a gas-sampling bag and was immediately analyzed in terms of concentrations of NO, NO 2 , CO and CO 2 . Table 4 composition (ratio: mass %) yield of NO(ppm) yield of NO 2 (ppm) yield of CO(ppm) yield of CO 2 (ppm) Ex.
  • NQ/Sr(NO 3 ) 2 /Al(OH) 3 /CMCNa (36.4/51.2/3/9.4) 23 0 420 2800 Ex.
  • 35 NQ/Sr(NO 3 ) 2 /Al(OH) 3 /CMCNa(33.1/48.5/9/9.4) 32 0 350 2600 Ex.
  • 36 NQ/Sr(NO 3 ) 2 /Al(OH)/CMCNa (31.7/51.9/7/9.4) 45 0 70 2600 Ex.
  • NQ/Sr(NO 3 ) 2 /Al(OH) 3 /CMCNa (33.7/49.9/7/9.4)
  • 35 0 280 2800 ppm is based on weight
  • the friction sensitivities are higher than 353 N and the drop hammer sensitivities are 50 cm or more. Therefore, the friction drop hammer sensitivities are so insufficient that a high safety can be attained at the time of handling.
  • each of the numeric values represented in Examples 57 to 61 shows that practical conditions for the inflator gas generating compositions are satisfied.
  • the burning velocity was increased by containing the component (d), compared with the burning velocity (7.32 mm/sec.) of Example 41 (GN/BCN/Al(OH) 3 /CMCNa) in Table 3 containing no component (d).
  • the increase in burning velocity allows more selected methods of manufacturing the gas generating agent.
  • the molded article of a gas generating composition is required to be thin so that the gas generating agent is completely combusted within a predetermined time when the burning velocity is small. Molding into pellets by a compression molding or the like, on the other hand, is involved in difficulty in tabletting too thin pellets. A large burning velocity will solve such a problem in molding.
  • Gas generating compositions having compositions shown in Table 8 were prepared. The compositions were molded into 2 g of strand. Each of the strands was displaced in a closed gas bombé of one litter. Nitrogen gas was purged therein. The pressure was elevated up to 6,860 Pa with nitrogen and the strand was ignited by passage of an electric current through a nichrome wire to burn the strand completely. After approximately 20 seconds from the electrification, the combustion gas was sampled into a gas-sampling bag and was immediately analyzed in terms of concentrations of NO, NO 2 , NH 3 , CO, and CO 2 . Results are shown in Table 8.
  • 62 GN/BCN/Al(OH) 3 /KClO 4 /CMCNa 39.48/40.52/10/5/5) 7.5 0 7.5 220 3400
  • 63 GN/BCN/Al(OH) 3 /NH 4 ClO 4 /CMCNa 38.40/41.60/10/5/5) 15 0 0 270 3500
  • ratio:mass %) yield of NO(ppm) yield of NO 2 (ppm) yield of NH 3 (ppm ) yield of CO(ppm) yield of CO 2 (ppm) Ex. 62 GN/BCN/Al(OH) 3 /KClO 4 /CMCNa (39.48/40.52/10/5/5) 7.5 0 7.5 220 3400

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Air Bags (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Claims (7)

  1. Gaserzeugende Zusammensetzung umfassend die folgenden Komponenten (a), (b) und (c) und gegebenenfalls die Komponente (d) und/oder die Komponente (e):
    (a) 10 bis 60 Massen-% einer organischen Verbindung als Treibstoff, wobei die organische Verbindung wenigstens eine ausgewählt aus Guanidinverbindungen ist,
    (b) 10 bis 85 Massen-% von wenigstens einem Oxidationsmittel, ausgewählt aus der Gruppe, bestehend aus (b-1) basischen Metallnitraten, Nitraten und Ammoniumnitrat und (b-2) Perchloraten und Chloraten,
    (c) 0,1 bis 20 Massen-% Aluminiumhydroxid mit einer mittleren Teilchengröße von 2 bis 30 µm,
    (d) 20 Massen-% oder weniger von einem Bindemittel
    (e) 20 Massen-% oder weniger von einem Additiv ausgewählt aus Metalloxiden und Metallcarbiden.
  2. Gaserzeugende Zusammensetzung nach Anspruch 1, wobei das basische Metallnitrat (b) wenigstens eines, ausgewählt aus der Gruppe bestehend aus einem basischen Kupfernitrat, einem basischen Cobaltnitrat, einem basischen Zinknitrat, einem basischen Mangannitrat, einem basischen Eisennitrat, einem basischen Molybdännitrat, einem basischen Bismutnitrat und einem basischen Cernitrat, ist.
  3. Gaserzeugende Zusammensetzung nach Anspruch 1 oder 2, wobei das Perchlorat und Chlorat (b-2) wenigstens eines, ausgewählt aus der Gruppe bestehend aus Ammoniumperchlorat, Kaliumperchlorat, Natriumperchlorat, Kaliumchlorat und Natriumchlorat, ist.
  4. Gaserzeugende Zusammensetzung nach einem der Ansprüche 1 bis 3, wobei das Bindemittel der Komponente (d) wenigstens eines, ausgewählt aus der Gruppe bestehend aus Carboxymethylcellulose, Natriumcarboxymethylcellulose, Kaliumcarboxymethylcellulose, Ammoniumcarboxymethylcellulose, Celluloseacetat, Celluloseacetatbutyrat, Methylcellulose, Ethylcellulose, Hydroxyethylcellulose, Ethylhydroxyethylcellulose, Hydroxypropylcellulose, Carboxymethylethylcellulose, mikrokristalliner Cellulose, Polyacrylamid, aminierten Produkten von Polyacrylamid, Polyacrylhydrazid, einem Copolymer von Acrylamid und einem Metallsalzacrylat, einem Copolymer von Polyacrylamid und einem Polyacrylester, Polyvinylalkohol, Acrylkautschuk, Guargummi, Stärke und Silicon, ist.
  5. Gaserzeugende Zusammensetzung nach einem der Ansprüche 1 bis 4, wobei das Additiv der Komponente (e) wenigstens eines, ausgewählt aus der Gruppe bestehend aus Metaloxiden, einschließlich Kupfer(II-)oxid, Eisenoxid, Zinkoxid, Cobaltoxid, Manganoxid, Molybdänoxid, Nickeloxid, Bismutoxid, Siliciumdioxid oder Aluminiumoxid; Metallhydroxiden einschließlich Cobalthydroxid oder Eisenhydroxiden; Metallcarbonat oder basischem Metalllcarbonat einschließlich Cobaltcarbonat, Calciumcarbonat, basischen Zinkcarbonaten oder basischen Kupfercarbonaten; Verbundverbindungen von Metalloxiden oder Hydroxiden einschließlich säureaktivierte Tonerde, Kaolin, Talk, Bentonit, Diatomeenerde oder Hydrotalcit; Metallsäuresalzen einschließlich Natriumsilicat, Glimmermolybdat, Cobaltmolybdat oder Ammoniummolybdat; Silicon, Molybdändisulfid; Calciumstearat; Siliciumnitrid und Siliciumcarbid, ist.
  6. Formartikel aus einer gaserzeugenden Zusammensetzung mit einer einfach perforierten zylindrischen Form, einer porösen zylindrischen Form oder einer Pelletform, wobei der Formartikel aus der gaserzeugenden Zusammensetzung nach einem der Ansprüche 1 bis 5 erhalten wird.
  7. Airbag-Gasgenerator, der die gaserzeugende Zusammensetzung nach einem der Ansprüche 1 bis 5 oder den Formartikel aus einer gaserzeugenden Zusammensetzung nach Anspruch 6 verwendet.
EP03793453.6A 2002-09-12 2003-09-11 Gaserzeugende zusammensetzung Expired - Lifetime EP1538137B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2002266411 2002-09-12
JP2002266411 2002-09-12
JP2003172349 2003-06-17
JP2003172349A JP4302442B2 (ja) 2002-09-12 2003-06-17 ガス発生剤組成物
PCT/JP2003/011634 WO2004024652A1 (ja) 2002-09-12 2003-09-11 ガス発生剤組成物

Publications (3)

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EP1538137A1 EP1538137A1 (de) 2005-06-08
EP1538137A4 EP1538137A4 (de) 2011-12-21
EP1538137B1 true EP1538137B1 (de) 2016-11-09

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EP (1) EP1538137B1 (de)
JP (1) JP4302442B2 (de)
CN (1) CN100348556C (de)
AU (1) AU2003262083A1 (de)
WO (1) WO2004024652A1 (de)

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US20060289096A1 (en) * 2003-07-25 2006-12-28 Mendenhall Ivan V Extrudable gas generant
JP4526375B2 (ja) 2004-12-20 2010-08-18 ダイセル化学工業株式会社 エアバッグ用ガス発生器
US7520530B2 (en) 2004-12-20 2009-04-21 Daicel Chemical Industries, Ltd. Gas generator for air bag
FR2887247B1 (fr) * 2005-06-15 2007-10-12 Snpe Materiaux Energetiques Procede de fabrication de pastilles generatrices de gaz comportant une etape de granulation par voie seche
FR2892117B1 (fr) * 2005-10-13 2008-05-02 Snpe Materiaux Energetiques Sa Composition pyrotechnique generatrice de gaz rapide et procede d'obtention
JP4878206B2 (ja) 2006-04-28 2012-02-15 株式会社ダイセル インフレータ
JP5422096B2 (ja) * 2006-11-02 2014-02-19 株式会社ダイセル ガス発生剤組成物
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WO2004024652A1 (ja) 2004-03-25
JP2004155645A (ja) 2004-06-03
CN100348556C (zh) 2007-11-14
EP1538137A1 (de) 2005-06-08
CN1556782A (zh) 2004-12-22
AU2003262083A1 (en) 2004-04-30
EP1538137A4 (de) 2011-12-21

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