Gas generating composition
First Claim
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1. A gas generating composition for use in inflating automobile crash bags comprising a mixture, in pellet form, of an alkali metal azide and an oxidant, each pellet coated with a lacquer comprising stabilized cellulose nitrate and at least one nitrate ester plasticizer.
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Abstract
An improved gas generating composition for generating nitrogen gas made by coating pellets of a pyrotechnic alkali metal azide composition with an energetic lacquer coating.
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Citations
15 Claims
- 1. A gas generating composition for use in inflating automobile crash bags comprising a mixture, in pellet form, of an alkali metal azide and an oxidant, each pellet coated with a lacquer comprising stabilized cellulose nitrate and at least one nitrate ester plasticizer.
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14. A gas generating composition for use in inflating automobile crash bags, about 93% by weight of said composition consisting essentially of a 70:
- 30 mixture by weight of sodium azide and potassium perchlorate, said mixture being in pellet form, and about 7% by weight of said composition being a lacquer coating of each pellet, said lacquer consisting essentially of about 34% dry weight basis nitrocellulose having 12.6% nitrogen content, about 64% by weight of 1,1,1-trimethylol ethane trinitrate, about 1% by weight symmetrical diethyl diphenyl urea and about 1% by weight monobasic cupric beta-resorcylate.
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15. A gas generating composition for use in inflating automobile crash bags, about 95% by weight of said composition consisting essentially of a 58:
- 42 mixture by weight of sodium azide and potassium perchlorate, said mixture being in pellet form, and about 5% by weight of said composition being a lacquer coating of each pellet, said lacquer consisting essentially of about 45% dry weight basis nitrocellulose having 12.6% nitrogen content, about 53% by weight 1,1,1-trimethylol ethane trinitrate, about 1% by weight symmetrical diethyl diphenyl urea and about 1% by weight monobasic cupric beta-resorcylate.
Specification