Gas generant composition containing non-metallic salts of 5-nitrobarbituric acid
AssigneeThiokol Corporation
InventorsRobert B. Wardle, Reed J. Blau
Life of this patent
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Abstract
A composition is provided which comprises a fuel effective amount of a heterocyclic compound represented by the formula: ##STR1## wherein X is a non-metallic cation; and an oxidizing effective amount of an inorganic oxidizer. The oxidizer can be an inorganic nitrite, an inorganic nitrate, a metal peroxide, a metal oxide, a metal hydroxide, an inorganic perchlorate, or an inorganic chlorate. A binder can be added, if desired. An automotive air bag inflator and a method for generating gas are also disclosed.
Claims18
A composition comprising:
- (a) about 15 to about 60 % by weight of at least one heterocyclic compound represented by the formula:
- ##STR4## wherein X is a non-metallic cation;
- and (b) about 85% to about 40% by weight of at least one oxidizer selected from the group consisting of inorganic nitrites, inorganic nitrates, metal oxides, metal hydroxides, metal peroxides, inorganic chlorates, inorganic perchlorates, and mixtures thereof.
A composition comprising a fuel effective amount of at least one heterocyclic compound represented by the formula:
- ##STR5## wherein X is a non-metallic cation;
- and an oxidizing effective amount of at least one oxidizer selected from the group consisting of inorganic nitrites, inorganic nitrates, metal oxides, metal hydroxides, metal peroxides, inorganic chlorates, and inorganic perchlorates.
A hybrid gas-generating system comprising:
- a pressure tank having a rupturable opening, said pressure tank containing an inert gas;
- a gas-generating device for producing hot combustion gases and for rupturing said rupturable opening, said gas-generating device being configured in relation to said pressure tank such that hot combustion gases are mixed with and heat said inert gas, said gas-generating device containing a gas-generating composition comprising (a) a fuel effective amount of at least one heterocyclic compound represented by the formula:
- ##STR6## wherein X is a non-metallic cation;
- and (b) an effective oxidizing amount of at least one oxidizer selected from the group consisting of inorganic nitrites, inorganic nitrates, metal oxides, metal hydroxides, metal peroxides, inorganic perchlorates, and inorganic chlorates;
- and
- means for igniting said gas-generating composition.
An automobile air bag system comprising
- a collapsed, inflatable air bag;
- and a gas generating device connected to said air bag for inflating said air bag, said gas generating device containing a gas generating composition comprising a fuel and an oxidizer therefor, wherein said fuel is a fuel effective amount of at least one heterocyclic compound represented by the forumla:
- ##STR7## wherein X is a non-metallic cation;
- and an oxidizing effective amount of at least one oxidizer selected from the group consisting of inorganic nitrites, inorganic nitrates, metal oxides, metal hydroxides, metal peroxides, inorganic perchlorates, and inorganic chlorates.
Dependencies are inferred from the claim text.