Cool burning hydrate fuels are provided for gas generant compositions for automotive inflatable restraint systems. The cool burning hydrate fuel is a compound comprising carbon, hydrogen, oxygen, a transition metal, and optionally nitrogen. The cool burning hydrate fuel is a transition metal salt of an organic compound or transition metal complex salt having (i) at least one functional group selected from the group consisting of: amide, imide, hydroxyl, carboxylic acid, and combinations thereof, (ii) an oxygen-to-carbon mole ratio of greater than or equal to about 0.5, (iii) at least one-half a water molecule of hydration, and (iv) an exothermic heat of formation of at least about −400 KJ/mole. The fuel may have a water release temperature of ≥about 140° C. The cool burning hydrate fuel may be one or more of copper cyanurate dihydrate, a copper melamine oxalate dihydrate, and a copper malonate hydrate.
Cool burning hydrate fuels in gas generant formulations for automotive airbag applications
2023-06-20
Patent
Elektronische Ressource
Englisch
IPC: | C06B EXPLOSIVE OR THERMIC COMPOSITIONS , Sprengstoffe oder thermische Gemische / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C06D Mittel zum Erzeugen von Rauch oder Nebel , MEANS FOR GENERATING SMOKE OR MIST |
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