Gas generative compositions

Details Gas generative compositions Gas generative compositions

1999-11-05

2000-12-05

Poon, Peter M.

Explosive and thermic compositions or charges

Containing inorganic nitrogen-oxygen salt

149 191, 149 195, 149 37, 280741, 280740, C06B 3100, C06B 3300, C06B 4510, B60R 2128

Patent

active

061561371

ABSTRACT:
Gas generative compositions especially useful in inflators for protective passive restraint devices (e.g., motor vehicle air bags, escape slide chutes, lift rafts, and the like) include a nitrogen-containing fuel and an oxidizer selected from copper (II) oxide (CuO), cupric nitrate, basic copper nitrate (Cu(NO.sub.3).sub.2.3Cu(OH.sub.2), strontium nitrate (Sr(NO.sub.3).sub.2) and mixtures thereof. Most preferably the nitrogen-containing fuel is azodicarbonamidine dinitrate (AZODN) and/or 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20). The compositions of the present invention provide high burning rates with acceptable burning rate pressure exponents which allow their operation at lower pressures, thereby resulting in the use of less costly, lower weight, and lower strength materials for design and manufacture of the inflator pressure vessel.

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