초록 ▼

Thermally stable gas generant compositions incorporate a combination of nitroguanidine, one or more nonazide high-nitrogen fuels, and phase-stabilized ammonium nitrate or a similar nonmetallic oxidizer that, upon combustion, result in a greater yield of gaseous products per mass unit of gas generant

Thermally stable gas generant compositions incorporate a combination of nitroguanidine, one or more nonazide high-nitrogen fuels, and phase-stabilized ammonium nitrate or a similar nonmetallic oxidizer that, upon combustion, result in a greater yield of gaseous products per mass unit of gas generant, a reduced yield of solid combustion products, and acceptable burn rates, thermal stability, and ballistic properties. These compositions are especially suitable for inflating air bags in passenger-restraint devices.

대표청구항 ▼

[ We claim:] [1.]1. A gas generant composition consisting of a hydrated or anhydrous mixture of:nitroguanidine and at least one nonazide high-nitrogen fuel selected from the group consisting of guanidines, tetrazoles, triazoles, salts of tetrazoles, and salts of triazoles; andphase stabilized ammoni

[ We claim:] [1.]1. A gas generant composition consisting of a hydrated or anhydrous mixture of:nitroguanidine and at least one nonazide high-nitrogen fuel selected from the group consisting of guanidines, tetrazoles, triazoles, salts of tetrazoles, and salts of triazoles; andphase stabilized ammonium nitrate as an oxidizer,wherein said composition has a melting point of at least 115.degree. C., the ammonium nitrate is phase stabilized by coprecipitating with potassium nitrate, said nitroguanidine comprises 1%-26% by weight of said mixture; said at least one nonazide high-nitrogen fuel comprises 4%-40% by weight of said mixture, said nitroguanidine in combination with said at least one nonazide high nitrogen fuel comprises 15%-60% by weight of said mixture, and, said phase stabilized ammonium nitrate comprises 40%-85% by weight of said mixture.