Gas generating compositions

C - Chemistry – Metallurgy – 06 – B

Patent

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Details

C06B 25/34 (2006.01) C06B 29/02 (2006.01) C06B 29/08 (2006.01) C06B 29/16 (2006.01) C06B 31/00 (2006.01) C06B 31/02 (2006.01) C06B 31/28 (2006.01) C06B 31/30 (2006.01) C06B 31/32 (2006.01) C06B 45/10 (2006.01) C06D 5/06 (2006.01)

Patent

CA 2264734

A low-solids gas generating composition has a fuel of guanidine nitrate, nitroguanidine, cellulose, cellulose acetate, hexamine or mixtures thereof, with an oxidizer of ceric ammonium nitrate, lithium nitrate, lithium perchlorate, sodium perchlorate, phase stabilized ammonium nitrate, e.g., a combination of ammonium nitrate with potassium nitrate, potassium perchlorate or mixtures thereof such that the combination is a solid solution for phase stabilization, a mixture of ammonium perchlorate with at least one alkali metal salt, or mixtures thereof. The oxidizer/fuel mixture is within about 4 % of stoichiometric balance. Additives such as HMX, RDX, or fumed silica may be added, and the composition may be in the form of pellets, grains or granules.

L'invention porte sur une composition génératrice de gaz à faible teneur en matières solides et présentant un combustible de nitrate de guanidine, nitroguanidine, cellulose, acétate de cellulose, hexamine ou un mélange de ceux-ci avec un oxydant de nitrate d'ammonium cérique, nitrate de lithium, perchlorate de lithium, perchlorate de sodium, nitrate d'ammonium à phase stabilisée, p.ex., une combinaison de nitrate d'ammonium avec du nitrate de potassium, du perchlorate de potassium ou des mélanges de ceux-ci de sorte que la combinaison soit une solution solide pour la stabilisation de la phase; un mélange de perchlorate d'ammonium avec au moins un sel de métal alcalin ou des mélanges de ceux-ci. Le mélange oxydant/combustible représente environ 4 % de la balance stoïchiométrique. Des additifs tels que HMX, RDX ou la silice sublimée peuvent être ajoutés, et la composition peut se présenter sous forme de pastilles, grains ou granules.

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