EP0949225B1 - Azidfreie, gaserzeugende Zusammensetzung - Google Patents
Azidfreie, gaserzeugende Zusammensetzung Download PDFInfo
- Publication number
- EP0949225B1 EP0949225B1 EP99105181A EP99105181A EP0949225B1 EP 0949225 B1 EP0949225 B1 EP 0949225B1 EP 99105181 A EP99105181 A EP 99105181A EP 99105181 A EP99105181 A EP 99105181A EP 0949225 B1 EP0949225 B1 EP 0949225B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- weight
- nitrate
- composition according
- proportion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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 an acid-free, gas-generating Composition, in particular for use in security devices for motor vehicles, with one of at least two components existing fuel mixture in a proportion of 20 to 60 wt .-% and an oxidizer mixture consisting of at least three components in a proportion of 40 to 80 wt .-%, each based on the total composition.
- Gas generating compositions used in safety devices used for motor vehicles mostly consist of a fuel based on sodium azide and an oxidizing agent. However, due to the toxicity of sodium azide, it was premature started looking for alternatives to the azide-containing gas generators To look for mixtures.
- US-A-5 608 183 describes a gas generating mixture containing between about 30 and 85 percent by weight of a fuel and between about 15 and about 70 percent by weight of an oxidizing agent.
- At least 60% by weight of the fuel consists of the nitrate of an acidic polyamine or a C 2 -C 3 -alkyldiamine, such as, for example, the nitrates of urea, guanidine, aminoguanidine, diaminoguanidine, semicarbazide, ethylenediamine, 1,3-propanediamine or 1, 2-propanediamine, or mixtures thereof.
- the oxidizing agent comprises at least 60% by weight of basic copper nitrate and / or cobalt triamine trinitrate. The mixture is processed in a wet process.
- the present invention provides such a composition ready, the fuel mixture consisting of at least two components in a proportion of 20 to 60 wt .-% and on at least three components existing oxidizer mixture in one Proportion of 40 to 80% by weight, in each case based on the overall composition, includes.
- the composition is characterized in that the fuel mixture is composed of 5 to 95 wt .-% one Guanidine compound, 5 to 95% by weight of a heterocyclic, organic acid and 0 to 20 wt .-% other fuels, each based on the fuel mixture.
- the oxidizer mixture is according to the invention composed of 20 to 70% by weight of one or more transition metal oxides, 10 to 50 wt .-% basic copper nitrate and 2 to 30% by weight metal chlorate, metal perchlorate, ammonium perchlorate, alkali nitrate, Alkaline earth nitrate or mixtures thereof, each based on the Oxidizer.
- the guanidine compound is preferably made of guanidine carbonate, Guanidine nitrate, guanidine perchlorate, aminoguanidine nitrate, diaminoguanidine nitrate, Triaminoguanidine nitrate, nitroguanidine or their Blends existing group selected.
- the heterocyclic organic acid is preferably selected from the group consisting of cyanuric acid, isocyanuric acid, cyamelid, urazole, uracil, uramine, urazin, alloxan, alloxanic acid, alloxantin, xanthine, allantoin, barbituric acid, orotic acid, dilituric acid, triazolone, violuric acid, succinimidialinic acid, dialuric acid, dialuric acid , Pseudohydantoin, imidazolone, pyrazolone, parabanic acid, furazan, ammeline, creatinine, maleic acid hydrazide, uric acid, pseudouric acid, guanazine, guanazole, melamine and their salts and derivatives existing group.
- the use of an at least two-component fuel mixture of a guanidine compound and a heterocyclic organic acid has proven to be beneficial for the generation of the lowest possible harmful gas values in the released gas mixture.
- the compounds mentioned usually have a melting point above 200 ° C. and are therefore extremely thermally stable. They thus meet the requirements for high long-term and temperature stability to be placed on gas generator fuels.
- the compounds mentioned also generally have high negative standard enthalpies of formation .DELTA.H f , as a result of which the amount of energy released during the combustion of the mixture and thus also the combustion temperature of the mixture remain low.
- heterocyclic organic acid In addition, too high a proportion of carbon in the heterocyclic organic acid is undesirable since an increased proportion of oxidizing agent is required in this case and the combustion temperature of the mixture also increases undesirably as a result of the highly exothermic formation of CO 2 .
- Compounds having 5 or 6 ring atoms are therefore particularly suitable as the heterocyclic organic acid.
- the number of carbon atoms per molecule of the organic heterocyclic acid should preferably not be greater than 4. Compounds which contain at most 3 carbon atoms per molecule are particularly preferred. In individual cases, such as in compounds with fused ring systems, up to 5 carbon atoms can also be present. Examples include guanine, C 5 H 4 N 5 O, or uric acid, C 5 H 4 N 3 O 3 .
- the retention capacity solid combustion residues by controlling the combustion temperature and in particular the relationship between influences metallic and non-metallic residues.
- the formation is favorable both firmly adhering to each other and yet sufficient porous residues to escape the combustion gases to allow.
- the setting of low combustion temperatures of below 1700 Kelvin is desirable for many reasons, in itself, however, not sufficient to provide the necessary restraint to ensure the solid combustion residues. So will for example in Comparative Example 1 described below a burning temperature of 1708 Kelvin and a metallic part a 37% incineration residue that is difficult to filter Residue generated, which is atomized under the burning conditions.
- the exemplary embodiment according to the invention is used in a comparable Burning temperature of 1680 Kelvin, but with a metallic content of 69% in the combustion residues a solid Clinker formed, which is still in tablet form after burning and can therefore be removed from the gas stream very easily.
- the in State of the art regarded as cheap education of exclusively Metallic combustion residues result from the slight Atomization and the formation of droplets from molten metal poor retention of combustion residues.
- the metal content in the solid combustion residues of the invention Composition is preferably about 50 to 90% by weight.
- compositions according to the invention additionally contain the oxidizers metal oxide and basic copper nitrate Proportion of conventional oxidizers based on chlorates, Perchlorates and / or nitrates.
- This conventional The burn-up rates of the invention can be oxidized Control mixtures in a wide range.
- the share of this conventional oxidizers according to the invention is at most 30% by weight, based on the oxidizer mixture, and preferably at most 20 wt .-%, um the combustion temperatures and the proportion of gravely condensable Keep combustion residues as low as possible.
- a high proportion of potassium perchlorate the combustion temperatures greatly increased and large amounts of potassium chloride releases which is gaseous under the combustion conditions. This gaseous potassium chloride can come from the combustion gases cannot be removed by filters and will result after condensing undesirable smoke formation in the vehicle interior.
- compositions according to the invention can be processed dry, which is why additional cost-intensive drying steps can be dispensed with in the preparation of the compositions.
- the calculated burning temperature of the mixture was 1683 Kelvin.
- the combustion residues had a metallic content of 69.5 % By weight and were in the form of a solid clinker while maintaining the original tablet form.
- the proportion of carbon monoxide in the combustion gas was 110 ppm and the proportion of nitrous gases was 30 ppm.
- the mixture showed good ignitability and a sufficiently high burning rate, but atomization of the solid combustion residues occurred.
- the metallic proportion of the solid combustion residues was 36.8% by weight.
- the CO concentration in the combustion gas was 190 ppm, the NO x concentration was 20 ppm.
- Example 1 43.7 parts micronized guanidine nitrate, 48.3 parts finely ground Copper oxide and 8.0 parts of potassium perchlorate were as in Example 1 described processed into fuel tablets. The so Fuel tablets obtained were put into a conventional one Gas generator filled and ignited in a test can.
- the calculated combustion temperature of the mixture was 1792 Kelvin.
- the solid combustion residues were in fragments, the metallic portion of the combustion residues was 51.5% by weight.
- the mixture was easy to ignite and burned quickly.
- an undesirably high proportion of toxic gases was measured in the combustion gases with a CO concentration of 255 ppm and a NO x concentration of 48 ppm.
- the mixture was filled into a conventional gas generator and ignited in a test can.
- the mixture showed one poor willingness to ignite and only a slow burning rate.
- the can pressure reached was insufficient.
- the metal part of the solid combustion residue was 100%, the formation of melted droplets could be observed.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Air Bags (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims (8)
- Azidfreie gaserzeugende Zusammensetzung, insbesondere zur Verwendung in Sicherheitseinrichtungen für Kraftfahrzeuge, mit einem aus mindestens zwei Komponenten bestehenden Brennstoffgemisch in einem Anteil von 20 bis 60 Gew.-% und einem aus mindestens drei Komponenten bestehenden Oxidatorgemisch in einem Anteil von 40 bis 80 Gew.-%, jeweils bezogen auf die Gesamtzusammensetzung, dadurch gekennzeichnet, daß das Brennstoffgemisch zusammengesetzt ist aus:5 bis 95 Gew.-% einer Guanidinverbindung;95 bis 5 Gew.-% einer heterocyclischen, organischen Säure; sowie0 bis 20 Gew.-% weiteren Brennstoffen, jeweils bezogen auf das Brennstoffgemisch,20 bis 70 Gew.-% eines oder mehrerer Übergangsmetalloxide10 bis 50 Gew.-% basischem Kupfernitrat2 bis 30 Gew.-% Metallchlorat, Metallperchlorat, Ammoniumperchlorat, Alkalinitrat, Erdalkalinitrat oder deren Mischungen, jeweils bezogen auf das Oxidatorgemisch.
- Zusammensetzung nach Anspruch 1, dadurch gekennzeichnet, daß die Guanidinverbindung ausgewählt ist aus der aus Guanidincarbonat, Guanidinnitrat, Guanidinperchlorat, Aminoguanidinnitrat, Diaminoguanidinnitrat, Triaminoguanidinnitrat, Nitroguanidin oder deren Mischungen bestehenden Gruppe.
- Zusammensetzung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die heterocyclische organische Säure ausgewählt ist aus der aus Cyanursäure, Isocyanursäure, Cyamelid, Urazol, Uracil, Uramin, Urazin, Alloxan, Alloxansäure, Alloxantin, Xanthin, Allantoin, Barbitursäure, Orotsäure, Dilitursäure, Triazolon, Violursäure, Succinimid, Dialursäure, Isodialursäure, Hydantoin, Pseudohydantoin, Imidazolon, Pyrazolon, Parabansäure, Furazan, Ammelin, Kreatinin, Maleinsäurehydrazid, Harnsäure, Pseudoharnsäure, Guanazin, Guanazol, Melamin sowie deren Salzen und Derivaten bestehenden Gruppe.
- Zusammensetzung nach Anspruch 3, dadurch gekennzeichnet, daß die Derivate der heterocyclischen organischen Säure die funktionellen Gruppen =O-OH, NO2, -CO2H, -NH2 oder Kombinationen hieraus enthalten.
- Zusammensetzung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Übergangsmetalloxid ausgewählt ist aus der aus Cr2O3, MnO2, Fe2O3, Fe3O4, CuO, Cu2O oder deren Mischungen bestehenden Gruppe.
- Zusammensetzung nach einem der Ansprüche 1 bis 5, ferner gekennzeichnet durch Verarbeitungshilfen in einem Anteil von bis zu 5 Gew.-%, bezogen auf die Gesamtzusammensetzung, wobei die Verarbeitungshilfen aus der aus den Rieselhilfen, Preßhilfsmitteln und/oder Gleitmitteln bestehenden Gruppe ausgewählt sind.
- Zusammensetzung nach Anspruch 1, bestehend aus 20 bis 40 Gew.-% Guanidinnitrat, 5 bis 30 Gew.-% Cyanursäure, 15 bis 35 Gew.-% CuO, 15 bis 35 Gew.-% basischem Kupfernitrat und 4 bis 16 Gew.-% KClO4, jeweils bezogen auf die Gesamtzusammensetzung.
- Zusammensetzung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß bei einem Abbrand der Zusammensetzung kondensierte Verbrennungsprodukte gebildet werden, die einen Anteil an Metall von 50 bis 90 Gew.-% aufweisen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29806504U | 1998-04-08 | ||
DE29806504U DE29806504U1 (de) | 1998-04-08 | 1998-04-08 | Azidfreie, gaserzeugende Zusammensetzung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0949225A1 EP0949225A1 (de) | 1999-10-13 |
EP0949225B1 true EP0949225B1 (de) | 2002-11-20 |
Family
ID=8055548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99105181A Expired - Lifetime EP0949225B1 (de) | 1998-04-08 | 1999-03-31 | Azidfreie, gaserzeugende Zusammensetzung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6132537A (de) |
EP (1) | EP0949225B1 (de) |
JP (1) | JPH11343192A (de) |
DE (2) | DE29806504U1 (de) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
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DE29821541U1 (de) * | 1998-12-02 | 1999-02-18 | TRW Airbag Systems GmbH & Co. KG, 84544 Aschau | Azidfreie, gaserzeugende Zusammensetzung |
CN100465097C (zh) * | 1999-09-27 | 2009-03-04 | 大赛璐化学工业株式会社 | 碱式金属硝酸盐、其制造方法和产气组合物 |
JP4500399B2 (ja) * | 2000-02-04 | 2010-07-14 | ダイセル化学工業株式会社 | トリアジン誘導体を含むガス発生剤組成物 |
JP2005231907A (ja) * | 2000-03-10 | 2005-09-02 | Nippon Kayaku Co Ltd | エアバック用ガス発生剤 |
JP4685262B2 (ja) * | 2000-03-28 | 2011-05-18 | ダイセル化学工業株式会社 | ガス発生剤の製造法 |
DE20010154U1 (de) * | 2000-06-07 | 2000-09-07 | TRW Airbag Systems GmbH & Co. KG, 84544 Aschau | Anzündmischung zur Verwendung in Gasgeneratoren |
JP4641130B2 (ja) * | 2000-10-10 | 2011-03-02 | 日本化薬株式会社 | ガス発生剤組成物およびそれを使用したガス発生器 |
JP2004268601A (ja) * | 2000-12-01 | 2004-09-30 | Nippon Kayaku Co Ltd | ガス発生器 |
DE10064285C1 (de) * | 2000-12-22 | 2002-10-17 | Nigu Chemie Gmbh | Gasgeneratortreibstoff-Zusammensetzung und deren Verwendung |
US6589375B2 (en) * | 2001-03-02 | 2003-07-08 | Talley Defense Systems, Inc. | Low solids gas generant having a low flame temperature |
US6875295B2 (en) | 2001-12-27 | 2005-04-05 | Trw Inc. | Cool burning gas generating material for a vehicle occupant protection apparatus |
US20030230367A1 (en) * | 2002-06-14 | 2003-12-18 | Mendenhall Ivan V. | Micro-gas generation |
US20050263224A1 (en) * | 2002-08-05 | 2005-12-01 | Jianzhou Wu | Gas generating composition for inflator containing melamine cyanurate |
US6964716B2 (en) | 2002-09-12 | 2005-11-15 | Daicel Chemical Industries, Ltd. | Gas generating composition |
US20040173922A1 (en) * | 2003-03-04 | 2004-09-09 | Barnes Michael W. | Method for preparing pyrotechnics oxidized by basic metal nitrate |
US20060054257A1 (en) * | 2003-04-11 | 2006-03-16 | Mendenhall Ivan V | Gas generant materials |
US6958101B2 (en) * | 2003-04-11 | 2005-10-25 | Autoliv Asp, Inc. | Substituted basic metal nitrates in gas generation |
FR2857359B1 (fr) * | 2003-07-10 | 2006-12-01 | Snpe Materiaux Energetiques | Composition pyrotechnique generatrice de gaz destinee a la securite automobile et brulant a des temperatures de combustion inferieures a 2200 k |
US8101033B2 (en) * | 2004-07-26 | 2012-01-24 | Autoliv Asp, Inc. | Alkali metal perchlorate-containing gas generants |
US20060289096A1 (en) * | 2003-07-25 | 2006-12-28 | Mendenhall Ivan V | Extrudable gas generant |
US20050016646A1 (en) * | 2003-07-25 | 2005-01-27 | Barnes Michael W. | Chlorine-containing gas generant compositions including a copper-containing chlorine scavenger |
US20050098247A1 (en) * | 2003-10-20 | 2005-05-12 | Jianzhou Wu | Gas generating composition |
JP4767487B2 (ja) * | 2003-10-20 | 2011-09-07 | ダイセル化学工業株式会社 | ガス発生剤組成物 |
US20050161135A1 (en) * | 2004-01-28 | 2005-07-28 | Williams Graylon K. | Auto-igniting pyrotechnic booster composition |
US7407598B2 (en) * | 2004-04-30 | 2008-08-05 | Goodrich Corporation | Flame suppressant aerosol generant |
FR2870234B1 (fr) * | 2004-05-13 | 2007-02-09 | Snpe Materiaux Energetiques Sa | Compostion pyrotechnique dosable utilisee comme fusible thermique dans un generateur de gaz et generateur de gaz incluant un compose ayant ladite composition |
US8034133B2 (en) * | 2004-05-31 | 2011-10-11 | Daicel Chemical Industries, Ltd. | Gas generating composition |
JP4500586B2 (ja) * | 2004-05-31 | 2010-07-14 | ダイセル化学工業株式会社 | ガス発生剤組成物 |
US7811397B2 (en) * | 2004-09-27 | 2010-10-12 | Daicel Chemical Industries, Ltd. | Gas generating agent |
DE102004062168A1 (de) * | 2004-10-08 | 2006-04-13 | Petri-Dn Gmbh Inflator Systems | Stoffgemisch als thermisch initiierbare Anzündmischung |
CN100455553C (zh) * | 2004-10-08 | 2009-01-28 | 彼得里-蒂恩充气系统两合公司 | 作为可热引发的引燃混合物的物质混合物 |
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 |
WO2007012348A1 (en) * | 2005-07-26 | 2007-02-01 | Dalphi Metal España, S.A. | Gas generating composition for automotive use manufactured by pellet formation |
FR2892117B1 (fr) * | 2005-10-13 | 2008-05-02 | Snpe Materiaux Energetiques Sa | Composition pyrotechnique generatrice de gaz rapide et procede d'obtention |
US7758709B2 (en) * | 2006-06-21 | 2010-07-20 | Autoliv Asp, Inc. | Monolithic gas generant grains |
JP5422096B2 (ja) * | 2006-11-02 | 2014-02-19 | 株式会社ダイセル | ガス発生剤組成物 |
US9193639B2 (en) * | 2007-03-27 | 2015-11-24 | Autoliv Asp, Inc. | Methods of manufacturing monolithic generant grains |
US20090020197A1 (en) * | 2007-07-16 | 2009-01-22 | Key Safety Systems, Inc. | Gas generating compositions and airbag inflators |
US8057611B2 (en) * | 2007-08-13 | 2011-11-15 | Autoliv Asp, Inc. | Multi-composition pyrotechnic grain |
WO2009126182A1 (en) * | 2008-04-10 | 2009-10-15 | Autoliv Asp, Inc. | Monolithic gas generants containing perchlorate-based oxidizers and methods for manufacture thereof |
US8815029B2 (en) * | 2008-04-10 | 2014-08-26 | Autoliv Asp, Inc. | High performance gas generating compositions |
US8808476B2 (en) * | 2008-11-12 | 2014-08-19 | Autoliv Asp, Inc. | Gas generating compositions having glass fibers |
US8231747B2 (en) * | 2009-07-29 | 2012-07-31 | Autoliv Asp, Inc. | Inflator assembly |
US8282750B1 (en) * | 2009-10-31 | 2012-10-09 | Tk Holdings, Inc. | Gas generant with auto-ignition function |
US10919818B1 (en) * | 2010-08-23 | 2021-02-16 | Joyson Safety Systems Acquisition Llc | Auto-ignition composition |
FR2975097B1 (fr) | 2011-05-09 | 2015-11-20 | Sme | Composes pyrotechniques generateurs de gaz |
US9051223B2 (en) | 2013-03-15 | 2015-06-09 | Autoliv Asp, Inc. | Generant grain assembly formed of multiple symmetric pieces |
CN110317120B (zh) * | 2019-05-30 | 2020-10-20 | 湖北航鹏化学动力科技有限责任公司 | 点火药及其制备方法与应用以及安全气囊气体发生器 |
US20210032180A1 (en) * | 2019-08-02 | 2021-02-04 | Autoliv Asp, Inc. | Ignition booster compositions and methods of making the same |
Family Cites Families (18)
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US4370181A (en) * | 1980-12-31 | 1983-01-25 | Thiokol Corporation | Pyrotechnic non-azide gas generants based on a non-hydrogen containing tetrazole compound |
US5197758A (en) * | 1991-10-09 | 1993-03-30 | Morton International, Inc. | Non-azide gas generant formulation, method, and apparatus |
US5386775A (en) * | 1993-06-22 | 1995-02-07 | Automotive Systems Laboratory, Inc. | Azide-free gas generant compositions and processes |
CA2172822A1 (en) | 1993-10-06 | 1995-04-13 | Eduard Gast | Gas developing agent |
DE4435790A1 (de) | 1993-10-06 | 1995-04-13 | Contec Chemieanlagen Gmbh | Gasgeneratortreibstoff |
US5431103A (en) * | 1993-12-10 | 1995-07-11 | Morton International, Inc. | Gas generant compositions |
DE4401213C1 (de) | 1994-01-18 | 1995-03-02 | Fraunhofer Ges Forschung | Gaserzeugende Mischung |
WO1995019944A1 (en) * | 1994-01-19 | 1995-07-27 | Thiokol Corporation | Metal complexes for use as gas generants |
DE4423088A1 (de) | 1994-07-01 | 1996-01-04 | Temic Bayern Chem Airbag Gmbh | Gaserzeugendes, azidfreies Stoffgemisch |
JPH08231291A (ja) | 1994-12-27 | 1996-09-10 | Daicel Chem Ind Ltd | ガス発生剤組成物 |
DE19505568A1 (de) * | 1995-02-18 | 1996-08-22 | Dynamit Nobel Ag | Gaserzeugende Mischungen |
EP0767155B1 (de) * | 1995-10-06 | 2000-08-16 | Autoliv Asp, Inc. | Heterogene gaserzeugende Treibladungen |
US5756929A (en) * | 1996-02-14 | 1998-05-26 | Automotive Systems Laboratory Inc. | Nonazide gas generating compositions |
US5635668A (en) * | 1996-03-15 | 1997-06-03 | Morton International, Inc. | Gas generant compositions containing copper nitrate complexes |
US5608183A (en) * | 1996-03-15 | 1997-03-04 | Morton International, Inc. | Gas generant compositions containing amine nitrates plus basic copper (II) nitrate and/or cobalt(III) triammine trinitrate |
DE19617538C1 (de) | 1996-05-02 | 1997-10-30 | Temic Bayern Chem Airbag Gmbh | Gaserzeugendes, azidfreies Stoffgemisch |
DE29722912U1 (de) | 1997-12-29 | 1998-02-19 | TRW Airbag Systems GmbH & Co. KG, 84544 Aschau | Azidfreie gaserzeugende Zusammensetzung |
DE29821541U1 (de) * | 1998-12-02 | 1999-02-18 | TRW Airbag Systems GmbH & Co. KG, 84544 Aschau | Azidfreie, gaserzeugende Zusammensetzung |
-
1998
- 1998-04-08 DE DE29806504U patent/DE29806504U1/de not_active Expired - Lifetime
-
1999
- 1999-03-31 DE DE59903442T patent/DE59903442D1/de not_active Expired - Lifetime
- 1999-03-31 EP EP99105181A patent/EP0949225B1/de not_active Expired - Lifetime
- 1999-04-07 US US09/287,800 patent/US6132537A/en not_active Expired - Lifetime
- 1999-04-08 JP JP11101118A patent/JPH11343192A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH11343192A (ja) | 1999-12-14 |
DE29806504U1 (de) | 1998-08-06 |
US6132537A (en) | 2000-10-17 |
DE59903442D1 (de) | 2003-01-02 |
EP0949225A1 (de) | 1999-10-13 |
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