EP1275629A2 - Nitrozellulosefreie gaserzeugende Zusammensetzung - Google Patents
Nitrozellulosefreie gaserzeugende Zusammensetzung Download PDFInfo
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- EP1275629A2 EP1275629A2 EP02014052A EP02014052A EP1275629A2 EP 1275629 A2 EP1275629 A2 EP 1275629A2 EP 02014052 A EP02014052 A EP 02014052A EP 02014052 A EP02014052 A EP 02014052A EP 1275629 A2 EP1275629 A2 EP 1275629A2
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- EP
- European Patent Office
- Prior art keywords
- composition according
- weight
- composition
- moderator
- gas
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 61
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 239000007800 oxidant agent Substances 0.000 claims abstract description 13
- 239000000654 additive Substances 0.000 claims abstract description 7
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- NDEMNVPZDAFUKN-UHFFFAOYSA-N guanidine;nitric acid Chemical compound NC(N)=N.O[N+]([O-])=O.O[N+]([O-])=O NDEMNVPZDAFUKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- IDCPFAYURAQKDZ-UHFFFAOYSA-N 1-nitroguanidine Chemical compound NC(=N)N[N+]([O-])=O IDCPFAYURAQKDZ-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical group [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910001487 potassium perchlorate Inorganic materials 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000008116 calcium stearate Substances 0.000 claims description 6
- 235000013539 calcium stearate Nutrition 0.000 claims description 6
- -1 Compounds calcium stearate Chemical class 0.000 claims description 5
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 4
- XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 claims description 3
- QJTIRVUEVSKJTK-UHFFFAOYSA-N 5-nitro-1,2-dihydro-1,2,4-triazol-3-one Chemical compound [O-][N+](=O)C1=NC(=O)NN1 QJTIRVUEVSKJTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000028 HMX Substances 0.000 claims description 3
- FONBHTQCMAUYEF-UHFFFAOYSA-N ethane-1,2-diamine;nitric acid Chemical compound NCCN.O[N+]([O-])=O.O[N+]([O-])=O FONBHTQCMAUYEF-UHFFFAOYSA-N 0.000 claims description 3
- UAGLZAPCOXRKPH-UHFFFAOYSA-N nitric acid;1,2,3-triaminoguanidine Chemical compound O[N+]([O-])=O.NNC(NN)=NN UAGLZAPCOXRKPH-UHFFFAOYSA-N 0.000 claims description 3
- UZGLIIJVICEWHF-UHFFFAOYSA-N octogen Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)CN([N+]([O-])=O)C1 UZGLIIJVICEWHF-UHFFFAOYSA-N 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical group OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 claims 6
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 5
- 239000000020 Nitrocellulose Substances 0.000 description 4
- 229920001220 nitrocellulos Polymers 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- GDDNTTHUKVNJRA-UHFFFAOYSA-N 3-bromo-3,3-difluoroprop-1-ene Chemical compound FC(F)(Br)C=C GDDNTTHUKVNJRA-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001485 alkali metal perchlorate Inorganic materials 0.000 description 1
- ZRALSGWEFCBTJO-UHFFFAOYSA-N anhydrous guanidine Natural products NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 1
- DWPDSISGRAWLLV-JHZYRPMRSA-L calcium;(1r,4ar,4br,10ar)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylate Chemical compound [Ca+2].C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C([O-])=O.C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C([O-])=O DWPDSISGRAWLLV-JHZYRPMRSA-L 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C06B23/007—Ballistic modifiers, burning rate catalysts, burning rate depressing agents, e.g. for gas generating
-
- 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 invention relates to a nitrocellulose-free gas-generating A composition for use in vehicle occupant restraint systems essentially from a nitrogenous organic fuel in one Proportion of 55 to 70 wt .-%, an inorganic oxidizer in a proportion of 30 to 45 wt .-% and, optionally, up to 10 wt .-% of a Abbrandmoderators and up to 5 wt .-% of conventional auxiliaries and additives consists.
- nitrocellulose fuels are their poor aging resistance.
- these fuels put down because of their extremely negative Oxygen balance during combustion large amounts of incompletely oxidized Reaction products, in particular carbon monoxide, free.
- US 5,538,567 A discloses a gas generating composition about 55 to 75 weight percent guanidine nitrate, about 25 to 45 weight percent of an oxidizer, in particular potassium perchlorate, about 0.5 to 5 wt .-% of a flow improver such as graphite or carbon black and up to 5% by weight of a binder such as calcium resinate.
- the average particle size of the guanidine nitrate is between about 75 and 350 ⁇ m, and the average particle size of the oxidizer is between about 50 and 200 microns.
- US-A-5 854 442 discloses a gas generating composition about 30 to 45 wt% potassium perchlorate, between about 55 and 70 wt% Guanidine nitrate and 1 to 3 wt .-% cellulose acetate butyrate as a binder.
- the Particle size of the oxidizer should be between 15 and 20 microns.
- compositions described above are suitable for their use chemical and physical properties only for use in driver or Passenger inflators.
- the invention provides the opposite one nitrocellulose-free gas generating composition with higher Burning rate and improved ignition, which therefore also in a belt tensioner gas generator can be used, in relation to the Driver and passenger gas generators shorter reaction and operating times requires.
- a nitrocellulose-free gas-generating composition consisting essentially of a nitrogen-containing organic Fuel in a proportion of 55 to 70 wt .-%, an inorganic oxidizer in a proportion of 30 to 45 wt .-%, up to 10 wt .-% of one or more Abbrandmoderatoren and up to 5 wt .-% of conventional auxiliaries and additives each based on the total weight of the composition, wherein the Pressure exponent of the composition is less than 0.35 and the Abbrandgeschwindingkeit at 200 bar at least 40 millimeters per second (mm / s) is.
- Such a composition is especially for use in a Belt tensioner gas generator suitable.
- the oxygen balance of the composition is preferably between -5 and +5%.
- the oxygen balance is understood to mean the percentage by weight of oxygen which is released when the compound or mixture is completely converted to CO 2 , H 2 O, Al 2 O 3 , B 2 O 3 , etc. (oxygen overbalancing). If the available oxygen is insufficient for this purpose, the shortfall required for the complete conversion is indicated with a negative sign (oxygen sub-balancing). Due to the advantageous oxygen balance of the gas-generating composition according to the invention, the quantity of noxious gas produced during combustion, in particular the proportion of carbon monoxide, is low.
- the organic fuel is preferably a guanidine compound, particularly preferably guanidine nitrate, in admixture with at least one other Nitrogen-containing compound consisting of nitroguanidine, nitrotriazolone (NTO), Hexogen (RDX), octogen (HMX), ethylenediamine dinitrate (EDDN), Triaminoguanidine nitrate (TAGN), azobisformamidine dinitrate and dinitroammelin existing group.
- the fuel is from 75 to 90 wt .-% Guanidine nitrate and 10 to 25 wt .-% of the further compound, respectively on the total weight of the fuel, composed.
- the further compound nitroguanidine is especially preferred.
- the other nitrogenous Connection increases the burning rate in the entire pressure range.
- addition of more than 25% of the further compound causes a too strong increase in the burning temperature, so that damage to the Gas generator is to be feared.
- the proportion of further connection are kept as low as possible.
- the inorganic oxidizer is preferably a perchlorate, especially an alkali metal perchlorate and / or ammonium perchlorate, and more preferably potassium perchlorate.
- oxygen-containing compounds of transition metals preferably of iron, copper, manganese, titanium, vanadium, molybdenum and chromium, including combinations thereof, can be used as burn-on moderators.
- the burn-off moderator is preferably selected from the group consisting of CuO, Cu 2 O, CuCr 2 O 4 , Fe 2 O 3 , 3Cu (OH) 2 x Cu (NO 3 ) 2 and mixtures thereof. Very particularly preferred is the Abbrandmoderator CuO.
- the mean particle size of the Abbrandmoderators is preferably less than 5 microns and more preferably less than 1 micron, with a preferred specific surface of at least 2 m 2 / g, more preferably at least 5 m 2 / g.
- the addition of such fine-grained Abbrandmoderatoren improves the ignition willingness of the gas-generating compositions of the invention, so that ignition delays of at most 6 milliseconds (ms) and more preferably at most 5 ms can be achieved.
- the mean particle size of the fuel and the oxidizer is preferably less than 15 microns and more preferably less than 10 microns. This contributes to the gas-generating composition according to the invention a sufficiently high burning rate for use in belt tensioner gas generators having.
- compositions of the invention can Burning rates of at least 40 mm / s under operating conditions, that is usually a pressure of 200 bar, can be achieved. Especially the burning rate at 200 bar is preferably at least 45 mm / s.
- a is a fuel-specific Constant
- p the pressure
- n the pressure exponent
- the printing exponent of the compositions according to the invention is smaller as 0.35 and preferably less than or equal to 0.3. Higher pressure exponents cause at low pressures and a worse ignition.
- the setting of the burning rate of the invention Compositions are preferably made by selecting the appropriate one Fuel composition, in particular the nature and proportion of others nitrogen-containing compound, the nature and proportion of each Abbrandmoderators and the average particle size of the fuel, the Oxidator and, optionally, the Abbrand moderator.
- a suitable Combining these parameters can optimally match the composition Use be adapted in belt tensioner gas generators.
- auxiliaries and additives include processing aids, such as Lubricants, pressing and pouring aids.
- processing aids such as Lubricants, pressing and pouring aids.
- these compounds can especially calcium stearate, silica, graphite or carbon black.
- the processing aids are preferably used in a proportion of up to 2 wt .-%, based on the total composition used.
- a particularly preferred composition according to the invention consists of 48 to 52 parts by weight of guanidine nitrate, 13 to 17 parts by weight of nitroguanidine, 33 to 37 parts by weight of potassium perchlorate, 2.0 to 5.0 parts by weight of copper oxide (CuO) and in each case up to 1 wt .-% calcium stearate and graphite.
- CuO copper oxide
- Guanidine nitrate with a mean particle size of 5 microns, nitroguanidine with an average particle size of 11 microns, potassium perchlorate with a mean particle size of 7 microns, copper oxide (CuO) with an average particle size of 0.5 microns and a specific surface area of 8 m 2 / g and calcium stearate and graphite were mixed in the parts by weight given in the following Table 1, ground together in a ball mill and pressed into tablets of 6 x 2.5 mm.
- Example # 3 a firing delay of 11 ms was determined; Examples Nos. 4 and 5 showed an ignition delay of 6 and 5 ms, respectively.
- the composition according to Example 5 was also subjected to an aging test subjected to over 400 hours at 107 ° C. After this test was a Weight loss of 0.07% was detected, that is, the composition showed a satisfying the requirements for vehicle occupant restraint systems Aging resistance. A comparison experiment with a standard fuel on the basis of nitrocellulose under the same conditions gave one Weight loss of 14%. This indicates complete decomposition and thus a complete malfunction of the fuel out.
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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)
- Compositions Of Macromolecular Compounds (AREA)
- Automotive Seat Belt Assembly (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Description
| Beispiel Nr. | 1 (Vergleichsbeispiel) | 2 (Vergleichsbeispiel) | 3 (Vergleichsbeispiel) | 4 | 5 |
| Guanidinnitrat | 65 | 57,5 | 50,0 | 50,0 | 50,0 |
| Nitroguanidin | 0 | 7,5 | 15,0 | 15,0 | 15,0 |
| KClO4 | 35 | 35,0 | 35,0 | 35,0 | 35,0 |
| CuO | 0 | 0 | 0 | 2,5 | 5,0 |
| Calciumstearat | 0,5 | 0,5 | 0,5 | 0,5 | 0,5 |
| Graphit | 0,4 | 0,4 | 0,4 | 0,4 | 0,4 |
| O2-Bilanz | -3,3 % | -3,6 % | -4,0 % | -3,5 % | -3,0 % |
| Beispiel Nr. | Abbrandgeschwindigkeit r bei 200 bar [mm/s] | theoretische Abbrandtemperatur [K] | Gasausbeute (%) | Druckexponent n |
| 1 | 30,8 | 2377 | 81,31 | 0,374 |
| 2 | 32,5 | 2419 | 81,32 | 0,387 |
| 3 | 34,7 | 2462 | 81,32 | 0,380 |
| 4 | 42,9 | 2441 | 79,84 | 0,289 |
| 5 | 46,2 | 2438 | 78,44 | 0,242 |
Claims (25)
- Nitrozellulosefreie, gaserzeugende Zusammensetzung zur Verwendung in Fahrzeuginsassenrückhaltesystemen, insbesondere einem Gurtstraffer-Gasgenerator, im wesentlichen bestehend aus
wenigstens einem stickstoffhaltigen organischen Brennstoff in einem Anteil von 55 bis 70 Gew.-%,
einem anorganischen Oxidator in einem Anteil von 30 bis 45 Gew.-%,
einem oder mehreren Abbrandmoderatoren in einem Anteil von bis zu 10 Gew.-% und
bis zu 5 Gew.-% üblichen Hilfs- und Zusatzstoffen, jeweils bezogen auf das Gesamtgewicht der Zusammensetzung,
wobei die Zusammensetzung einen Druckexponenten von kleiner als 0,35 und eine Abbrandgeschwindigkeit bei 200 bar von mindestens 40 mm/s aufweist. - Gaserzeugende Zusammensetzung nach Anspruch 1, dadurch gekennzeichnet, daß die Sauerstoffbilanz der Zusammensetzung zwischen -5 und + 5 % liegt.
- Zusammensetzung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der stickstoffhaltige organische Brennstoff Guanidinnitrat im Gemisch mit wenigstens einer weiteren aus der aus Nitroguanidin, Nitrotriazolon, Hexogen, Octogen, Ethylendiamindinitrat, Triaminoguanidinnitrat, Azobisformamidindinitrat und Dinitroammelin bestehenden Gruppe ausgewählten Verbindung ist.
- Zusammensetzung nach Anspruch 3, dadurch gekennzeichnet, daß der Brennstoff aus 75 bis 90 Gew.- % Guanidinnitrat und 10 bis 25 Gew.- % Nitroguanidin, jeweils bezogen auf das Brennstoffgewicht, besteht.
- Zusammensetzung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Oxidator ein Perchlorat ist.
- Zusammensetzung nach Anspruch 5, dadurch gekennzeichnet, daß der Oxidator Kaliumperchlorat ist.
- Zusammensetzung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Abbrandmoderator eine sauerstoffhaltige Verbindung von Fe, Cu, Mn, Ti, V, Mo, Cr oder Kombinationen davon ist.
- Zusammensetzung nach Anspruch 7, dadurch gekennzeichent, daß der Abbrandmoderator aus der aus CuO, Cu2O, CuCr2O4, Fe2O3, und 3Cu(OH)2 x Cu(NO3)2 bestehenden Gruppe ausgewählt ist.
- Zusammensetzung nach Anspruch 7, dadurch gekennzeichnet, daß der Abbrandmoderator CuO ist.
- Zusammensetzung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Abbrandmoderator in einem Anteil von zwischen 2 und 5 Gew.- % enthalten ist.
- Zusammensetzung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die mittlere Teilchengröße des Brennstoffs und des Oxidators kleiner als 15 µm ist.
- Zusammensetzung nach Anspruch 11, dadurch gekennzeichnet, daß die mittlere Teilchengröße des Brennstoffs und des Oxidators kleiner als 10 µm ist.
- Zusammensetzung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die mittlere Teilchengröße des Abbrandmoderators kleiner als 5 µm ist.
- Zusammensetzung nach Anspruch 13, dadurch gekennzeichnet, daß die mittlere Teilchengröße des Abbrandmoderators kleiner als 1 µm ist.
- Zusammensetzung nach Anspruch 13 oder 14, dadurch gekennzeichnet, daß die spezifische Oberfläche des Abbrandmoderators mindestens 2 m2/g beträgt.
- Zusammensetzung nach Anspruch 15, dadurch gekennzeichnet, daß die spezifische Oberfläche mindestens 5 m2/g beträgt.
- Zusammensetzung nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß die Abbrandgeschwindigkeit der Zusammensetzung mindestens 45 mm/s beträgt.
- Zusammensetzung nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, daß der Druckexponent kleiner oder gleich 0,3 ist.
- Zusammensetzung nach einem der Ansprüche 1 bis 18, dadurch gekennzeichnet, daß die Zusammensetzung eine Anzündverzögerung von höchstens 6 ms aufweist.
- Zusammensetzung nach Anspruch 19, dadurch gekennzeichnet, daß die Anzündverzögerung höchstens 5 ms beträgt.
- Zusammensetzung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die üblichen Hilfs- und Zusatzstoffe in einem Anteil von bis zu 2 Gew.- % enthalten sind.
- Zusammensetzung nach einem der Ansprüche 1 bis 21, dadurch gekennzeichnet, daß die üblichen Hilfs- und Zusatzstoffe aus der aus Calciumstearat, Siliciumdioxid, Graphit und Ruß bestehenden Gruppe ausgewählt sind.
- Zusammensetzung nach einem der vorhergehenden Ansprüche, bestehend aus 48 bis 52 Gewichtsteilen Guanidinnitrat, 13 bis 17 Gewichtsteilen Nitroguanidin, 33 bis 37 Gewichtsteilen Kaliumperchlorat, 2,0 bis 5,0 Gewichtsteilen CuO und bis zu zwei Gewichtsteilen wenigstens einer der Verbindungen Calciumstearat, Siliciumdioxid, Graphit und Ruß.
- Gurtstraffer mit einem Gasgenerator und einem Gurtstrafferantrieb, wobei der Gasgenerator eine bei Verbrennung ein Gas oder Gasgemisch erzeugende Zusammensetzung gemäß einem der Ansprüche 1 bis 23 enthält und der Gurtstrafferantrieb durch das Gas oder Gasgemisch betätigbar ist.
- Verwendung einer gaserzeugenden Zusammensetzung gemäß einem der Ansprüche 1 bis 23 in einem Gurtstraffer eines Fahrzeuginsassen-Rückhaltesystems.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20111410U DE20111410U1 (de) | 2001-07-10 | 2001-07-10 | Nitrozellulosefreie gaserzeugende Zusammensetzung |
| DE20111410U | 2001-07-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1275629A2 true EP1275629A2 (de) | 2003-01-15 |
| EP1275629A3 EP1275629A3 (de) | 2010-09-22 |
| EP1275629B1 EP1275629B1 (de) | 2012-05-02 |
Family
ID=7959121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02014052A Expired - Lifetime EP1275629B1 (de) | 2001-07-10 | 2002-06-28 | Nitrozellulosefreie gaserzeugende Zusammensetzung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6893517B2 (de) |
| EP (1) | EP1275629B1 (de) |
| AT (1) | ATE556042T1 (de) |
| DE (1) | DE20111410U1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2964656A1 (fr) * | 2010-09-15 | 2012-03-16 | Snpe Materiaux Energetiques | Composes pyrotechniques generateurs de gaz |
| DE102012004468A1 (de) * | 2012-03-08 | 2013-09-12 | Trw Airbag Systems Gmbh | Gaserzeugende Zusammensetzung und deren Verwendung in Fußgängerschutzeinrichtungen |
| EP2346797A4 (de) * | 2008-11-12 | 2013-12-18 | Autoliv Asp Inc | Gaserzeugende zusammensetzungen mit glasfasern |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040094250A1 (en) * | 2002-11-14 | 2004-05-20 | Estes-Cox Corporation | Composite propellant compositions |
| FR2866022B1 (fr) * | 2004-02-10 | 2006-07-28 | Snpe Materiaux Energetiques | Composition pyrotechnique generatrice de gaz destinee a la securite automobile |
| DE102004062168A1 (de) * | 2004-10-08 | 2006-04-13 | Petri-Dn Gmbh Inflator Systems | Stoffgemisch als thermisch initiierbare Anzündmischung |
| US20090020197A1 (en) * | 2007-07-16 | 2009-01-22 | Key Safety Systems, Inc. | Gas generating compositions and airbag inflators |
| US8980023B2 (en) * | 2011-07-27 | 2015-03-17 | Autoliv Asp, Inc. | Gas generation via elemental carbon-based compositions |
| US8657333B2 (en) | 2011-07-27 | 2014-02-25 | Autoliv Asp, Inc. | Inflator device with fuel-rich monolithic grain and oxidant-enhanced combustion |
| CN116789506B (zh) * | 2023-06-30 | 2024-09-03 | 陕西庆华汽车安全系统有限公司 | 用于汽车安全带预紧器的产气组合物及其制备方法 |
| WO2026061500A1 (en) * | 2024-09-23 | 2026-03-26 | Intelligent Solutions Limited | Gas generating composition (ggс) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5854442A (en) | 1995-03-31 | 1998-12-29 | Atlantic Research Corporation | Gas generator compositions |
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| US3533054A (en) * | 1968-01-11 | 1970-10-06 | United Carr Inc | Electrical terminal structure |
| DE3935869C1 (de) | 1989-10-27 | 1991-07-18 | Bayern-Chemie Gesellschaft Fuer Flugchemische Antriebe Mbh, 8261 Aschau, De | |
| WO1994001381A1 (fr) * | 1992-07-13 | 1994-01-20 | Nippon Koki Co., Ltd. | Agent generateur de gaz pour sacs gonflables |
| US5482579A (en) * | 1993-04-15 | 1996-01-09 | Nof Corporation | Gas generator compositions |
| US5538567A (en) * | 1994-03-18 | 1996-07-23 | Olin Corporation | Gas generating propellant |
| DE19581542T1 (de) * | 1994-12-21 | 1999-04-01 | Daicel Chem | Gaserzeugende Zusammensetzung |
| WO1996023748A1 (en) * | 1995-02-03 | 1996-08-08 | Otsuka Kagaku Kabushiki Kaisha | Air bag gas generating agent |
| US5780768A (en) * | 1995-03-10 | 1998-07-14 | Talley Defense Systems, Inc. | Gas generating compositions |
| US5747730A (en) * | 1995-03-31 | 1998-05-05 | Atlantic Research Corporation | Pyrotechnic method of generating a particulate-free, non-toxic odorless and colorless gas |
| US5756929A (en) * | 1996-02-14 | 1998-05-26 | Automotive Systems Laboratory Inc. | Nonazide gas generating compositions |
| US5959242A (en) * | 1996-05-14 | 1999-09-28 | Talley Defense Systems, Inc. | Autoignition composition |
| US6221187B1 (en) * | 1996-05-14 | 2001-04-24 | Talley Defense Systems, Inc. | Method of safely initiating combustion of a gas generant composition using an autoignition composition |
| US6306232B1 (en) | 1996-07-29 | 2001-10-23 | Automotive Systems Laboratory, Inc. | Thermally stable nonazide automotive airbag propellants |
| US5861571A (en) * | 1997-04-18 | 1999-01-19 | Atlantic Research Corporation | Gas-generative composition consisting essentially of ammonium perchlorate plus a chlorine scavenger and an organic fuel |
| US5936195A (en) * | 1997-06-10 | 1999-08-10 | Atlantic Research Corporation | Gas generating composition with exploded aluminum powder |
| US5985060A (en) * | 1998-07-25 | 1999-11-16 | Breed Automotive Technology, Inc. | Gas generant compositions containing guanidines |
| JP2000086376A (ja) * | 1998-09-14 | 2000-03-28 | Daicel Chem Ind Ltd | ガス発生剤組成物 |
| KR100420563B1 (ko) * | 1999-06-25 | 2004-03-02 | 니뽄 가야쿠 가부시키가이샤 | 가스 발생제 조성물 |
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2001
- 2001-07-10 DE DE20111410U patent/DE20111410U1/de not_active Expired - Lifetime
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2002
- 2002-06-28 AT AT02014052T patent/ATE556042T1/de active
- 2002-06-28 EP EP02014052A patent/EP1275629B1/de not_active Expired - Lifetime
- 2002-07-09 US US10/191,229 patent/US6893517B2/en not_active Expired - Lifetime
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| US5854442A (en) | 1995-03-31 | 1998-12-29 | Atlantic Research Corporation | Gas generator compositions |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2346797A4 (de) * | 2008-11-12 | 2013-12-18 | Autoliv Asp Inc | Gaserzeugende zusammensetzungen mit glasfasern |
| FR2964656A1 (fr) * | 2010-09-15 | 2012-03-16 | Snpe Materiaux Energetiques | Composes pyrotechniques generateurs de gaz |
| WO2012035271A2 (fr) | 2010-09-15 | 2012-03-22 | Sme | Composes pyrotechniques générateurs de gaz |
| WO2012035271A3 (fr) * | 2010-09-15 | 2012-05-10 | Sme | Composes pyrotechniques générateurs de gaz |
| DE102012004468A1 (de) * | 2012-03-08 | 2013-09-12 | Trw Airbag Systems Gmbh | Gaserzeugende Zusammensetzung und deren Verwendung in Fußgängerschutzeinrichtungen |
| US10343954B2 (en) | 2012-03-08 | 2019-07-09 | Trw Airbag Systems Gmbh | Gas generating composition and use thereof in pedestrian protection devices |
| DE102012004468B4 (de) | 2012-03-08 | 2025-08-21 | Zf Airbag Germany Gmbh | Gaserzeugende Zusammensetzung und deren Verwendung in Fußgängerschutzeinrichtungen |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE556042T1 (de) | 2012-05-15 |
| EP1275629B1 (de) | 2012-05-02 |
| EP1275629A3 (de) | 2010-09-22 |
| US6893517B2 (en) | 2005-05-17 |
| DE20111410U1 (de) | 2001-08-30 |
| US20030145926A1 (en) | 2003-08-07 |
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