Eutectic mixtures of ammonium nitrate and amino guanidine...

C - Chemistry – Metallurgy – 06 – D

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C06D 5/06 (2006.01) C06B 21/00 (2006.01) C06B 31/32 (2006.01)

Patent

CA 2258258

A eutectic solution of ammonium nitrate and either aminoguanidine nitrate (AGN) or guanidine nitrate (AN) in the form of a pressed pellet is used to generate a low particulate non-toxic, odorless and colorless gas that is useful wherever an immediate source of such gas is required, such as the inflation of an occupant restraint air bag. The use of the material in the form of a eutectic totally eliminates pellet cracking. Moreover, the addition of a minor amount of potassium perchlorate to the eutectic solution improves stability at 107~ for 400 hours, lowers the pressure exponent and increases the burn rate at 2000 psi.

Une solution eutectique de nitrate d'ammonium et de nitrate d'aminoguanidine (AGN) ou de nitrate de guanidine (AN) sous la forme d'un comprimé est utilisée pour produire un gaz inodore et incolore non toxique faiblement particulaire qui est utile dans tous les cas où une source immédiate d'un tel gaz est nécessaire, comme par exemple le gonflage d'un coussin de sécurité pour la retenue des passagers. L'emploi du matériau sous la forme d'un eutectique élimine totalement le fissurage du comprimé. En outre, l'adjonction d'une faible quantité de perchlorate de potassium à la solution eutectique améliore la stabilité à une température de 107 · pendant 400 heures, abaisse l'indice de pression et augmente la vitesse de combustion à 2000 psi.

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