Methods of preparing gas generant formulations

C - Chemistry – Metallurgy – 06 – D

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C06D 5/06 (2006.01) B60R 21/26 (2006.01)

Patent

CA 2211226

Novel methods for processing gas generant compositions to produce feed stock are disclosed. The methods of the present invention include utilizing a binding agent and other additives in a mixture of ingredients of gas generant compositions in sufficient quantities that the ingredients of the gas generating material will agglomerate to form granules as the ingredients are mixed. Processing methods, including roll coating, continuous mixing, static mixing, freeze drying, solvent extraction, emulsification, azeotropic distillation, spray drying, fluidized bed processing and particle grinding are also disclosed for use in preparing feed stock for final gas generant products. The methods of the present invention are particularly useful in processing gas generating materials having a non-azide based fuel.

La présente invention concerne de nouveaux procédés de traitement de compositions génératrices de gaz, destinées à la production de charges d'alimentation. Ces procédés incluent l'incorporation d'un agent agglutinant et d'autres additifs, à un mélange d'ingrédients de compositions génératrices de gaz, en quantités suffisantes pour que les ingrédients de la matière génératrice de gaz s'agglomèrent pour former des granulés lorsque l'on mélange ces ingrédients. L'invention concerne également des procédés de traitement, au nombre desquels le couchage par rouleau, le pétrissage en continu, le pétrissage statique, la cryodessiccation, l'extraction par solvants, l'émulsification, la distillation azéotropique, la dessiccation par atomisation, le traitement en lit fluidisé et la mouture de particules, ces procédés servant à la préparation de charges d'alimentation pour des produits finaux générateurs de gaz. Les procédés décrits dans la présente invention s'avèrent particulièrement utiles pour le traitement des matières génératrices de gaz comportant un combustible qui ne soit pas à base d'azide.

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