Nonazide gas generant compositions
First Claim
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1. A gas generant composition useful for inflating an automotive air bag passive restraint system comprising a mixture of:
- a high-nitrogen nonazide fuel selected from the class consisting of 1-, 3-, and 5-substituted amine salts of triazoles, and, 1- and 5-substituted amine salts of tetrazoles; and
dry-mixed withan oxidizer selected from the group consisting of phase stabilized ammonium nitrate.
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Abstract
High nitrogen nonazide gas compositions, useful in inflating passenger restraint gas inflator bags, comprise an amine salt of triazole or tetrazole fuel, and phase stabilized ammonium nitrate (PSAN) as an oxidizer. The combination of the amine azole salt and phase stabilized ammonium nitrate results in gas generants that are relatively more stable and less explosive, have improved ignitability and burn rates, and generate more gas and less solids than known gas generant compositions.
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Citations
5 Claims
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1. A gas generant composition useful for inflating an automotive air bag passive restraint system comprising a mixture of:
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a high-nitrogen nonazide fuel selected from the class consisting of 1-, 3-, and 5-substituted amine salts of triazoles, and, 1- and 5-substituted amine salts of tetrazoles; and
dry-mixed withan oxidizer selected from the group consisting of phase stabilized ammonium nitrate. - View Dependent Claims (2, 3, 4)
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5. A gas generant composition useful for inflating an automotive air bag passive restraint system comprising a mixture of:
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a high-nitrogen nonazide fuel selected from the class consisting of 1-, 3-, 5-substituted amine salts of triazoles and 1- and 5-substituted amine salts of tetrazoles, said fuel employed in a concentration of 15 to 65% by weight of the gas generant composition; and an oxidizer consisting of phase stabilized ammonium nitrate, said oxidizer employed in a concentration of 35 to 85% by weight of the gas generant composition, wherein said fuel is selected from the group consisting of monoguanidinium salt of 5,5'"'"'-Bis-1H-tetrazole, diguanidinium salt of 5,5'"'"'-Bis-1H-tetrazole, monoaminoguanidinium salt of 5,5'"'"'-Bis-1H-tetrazole, diaminoguanidinium salt of 5,5'"'"'-Bis-1H-tetrazole, monohydrazinium salt of 5,5'"'"'-Bis-1H-tetrazole, dihydrazinium salt of 5,5'"'"'-Bis-1H-tetrazole, monoammonium salt of 5,5'"'"'-bis-1H-tetrazole, diammonium salt of 5,5'"'"'-bis-1H-tetrazole, mono-3-amino-1,2,4-triazolium salt of 5,5'"'"'-bis-1H-tetrazole, di-3-amino-1,2,4-triazolium salt of 5,5'"'"'-bis-1H-tetrazole, diguanidinium salt of 5,5'"'"'-Azobis-1H-tetrazole, and monoammonium salt of 5-Nitramino-1H-tetrazole.
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Specification