Non-azide gas generant formulation, method, and apparatus
First Claim
1. A solid composition for generating a nitrogen-containing gas including a non-azide fuel and an oxidizer therefor, wherein said non-azide fuel comprises a transition metal complex of an aminoarazole.
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Accused Products
Abstract
Gas generating compositions or propellants are provided which comprise a non-azide fuel which is a transition metal complex of an aminoarazole. Preferred transition metal complexes are zinc and copper complexes of 5-aminotetrazole and 3-amino-1,2,4-triazole, with the zinc complexes most preferred. The propellant compositions also include a conventional oxidizer, such as potassium nitrate or strontium nitrate. These compositions are useful for generating a nitrogen-containing gas for a variety of applications, especially for inflating air bags in automotive restraint systems, as well as other inflatable devices.
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Citations
20 Claims
- 1. A solid composition for generating a nitrogen-containing gas including a non-azide fuel and an oxidizer therefor, wherein said non-azide fuel comprises a transition metal complex of an aminoarazole.
- 9. A method of generating a nitrogen-containing gas comprising igniting a solid composition including a non-azide fuel and an oxidizer therefor, wherein the fuel comprises a transition metal complex of an aminoarazole.
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20. An automotive air bag inflator comprising a metal housing having a gas outlet, a solid gas generating composition including a non-azide fuel and an oxidizer therefor disposed within said housing, an igniter disposed within said housing adjacent to said composition, and a gas filtering system disposed between said composition and said outlet, wherein said fuel comprises a transition metal complex of an aminoarazole.
Specification