Metal complexes for use as gas generants

Details Metal complexes for use as gas generants Metal complexes for use as gas generants

1997-07-24

2000-03-21

Nelson, Peter A.

Explosive and thermic compositions or charges

Containing inorganic nitrogen-oxygen salt

102289, C06B 3100

Patent

active

060398205

ABSTRACT:
Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a metal cation template, a neutral ligand containing hydrogen and nitrogen, sufficient oxidizing anion to balance the charge of the complex, and at least one cool burning organic nitrogen-containing compound. The complexes are formulated such that when the complex combusts, nitrogen gas and water vapor is produced. Specific examples of such complexes include metal nitrite ammine, metal nitrate ammine, and metal perchlorate ammine complexes, as well as hydrazine complexes. A binder and co-oxidizer can be combined with the metal complexes to improve crush strength of the gas generating compositions and to permit efficient combustion of the binder. Such gas generating compositions are adaptable for use in gas generating devices such as automobile air bags.

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