Gas generant materials

Abstract

A gas generant composition includes a non-azide, organic, nitrogen-containing fuel; a substituted basic metal nitrate and at least one transition metal complex of diammonium bitetrazole. The substituted basic metal nitrate can be a reaction product of an acidic organic compound and a basic metal nitrate. The transition metal complex of diammonium bitetrazole is effective to enhance the burn rate presure sensitivity of the gas generant composition as compared to the same gas generant composition without inclusion of the at least one transition metal complex of diammonium bitetrazole.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation-in-part of U.S. application Ser. No. 10 / 412,530, filed 11 Apr. 2003. The co-pending parent application is hereby incorporated by reference herein in its entirety and is made a part hereof, including but not limited to those portions which specifically appear hereinafter. [0002] The subject matter of this application is also related to prior U.S. patent applications Ser. No. 09 / 998,122, filed 30 Nov. 2001, now U.S. Pat. No. 6,712,918, issued 30 Mar. 2004; U.S. Ser. No. 10 / 627,433, filed 25 Jul. 2003; U.S. Ser. No. 10 / 899,451, filed 26 Jul. 2004; and U.S. Ser. No. 10 / 899,452, filed 26 Jul. 2004. The disclosures of these related patent applications are also hereby incorporated by reference herein in their entirety and made a part hereof, including but not limited to those portions which specifically appear hereinafter.BACKGROUND OF THE INVENTION [0003] This invention relates generally to a material for us...

AI Technical Summary

Benefits of technology

[0021] The general object of the invention can be attained, at least in part, through a gas generant composition that includes a non-azide, organic, nitrogen-containing fuel; a substituted basic metal nitrate comprising a reaction product of an acidic organic compound and a basic metal nitrate; and at least one transition metal complex of diammonium bitetrazole effective to decrease the burn rate pressure sensitivity of the gas generant composition as compared to the same gas generant composition without inclusion of the at least one transition metal complex of diammonium bitetrazole.

Problems solved by technology

The prior art generally fails to provide gas generant compositions, particularly non-azide gas generant compositions that are capable of simultaneously providing or resulting in relatively high gas yields, as well as sufficient and desirably high burn rates while avoiding or minimizing production or yield of undesirable inflation gas constituents such as one or more of hydrogen chloride, carbon monoxide, ammonia, nitrogen dioxide and nitric oxide.

Moreover, the prior art generally fails to provide such gas generant compositions that are conducive or easily adaptable to manufacture or production by alternative techniques such as via extrusion processing.

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