Gas generant with autoignition function
View Patent ↗A novel auto-ignition/gas generating composition contains a primary fuel selected from salts of azoles, alkyl tetrazoles, and mixtures thereof; a secondary fuel selected from salts of organic acids; and a primary oxidizer selected from metal nitrates. A tertiary fuel may also be provided and is selected from organic acids. Gas generators and gas generating systems incorporating the novel compositions are also contemplated.
1. A composition consisting of:
a primary fuel selected from the group consisting of salts of azoles, alkyl tetrazoles, and mixtures thereof;
a secondary fuel selected from the group consisting of amino guanidine nitrate, di-amino guanidine nitrate, tri-amino guanidine nitrate, and mixtures thereof;
a tertiary fuel selected from at least one organic acid selected from the group consisting of dl-tartaric acid, d-tartaric acid, l-tartaric acid, formic acid, mucic acid, fumaric acid, and mixtures thereof;
an oxidizer selected from metal nitrates, said oxidizer provided at about 10-90 weight percent of the total composition, and said primary, secondary, and tertiary fuels taken together provided at about 10-90 weight percent of the total composition; and
an optional additive selected from the group consisting of molybdenum disulfide, silica, graphite, boron nitride, clay, and mixtures thereof.
2. The composition of claim 1 wherein said primary fuel is an alkyl tetrazole selected from the group consisting of bitetrazole methane, bitetrazole ethane, bitetrazole propane, and mixtures thereof.
3. The composition of claim 1 wherein said primary fuel is a salt of bis-tetrazole amine.
4. The composition of claim 1 wherein said primary fuel is the monoammonium salt of bis-tetrazole amine.
5. A composition comprising:
a salt of bis-tetrazole amine;
a secondary fuel selected from the group consisting of amino guanidine nitrate, di-amino guanidine nitrate, tri-amino guanidine nitrate, and mixtures thereof;
a tertiary fuel selected from at least one organic acid; and
an oxidizer selected from metal nitrates, said oxidizer provided at about 10-90 weight percent of the total composition, and said primary, secondary, and tertiary fuels taken together provided at about 10-90 weight percent of the total composition.
6. The composition of claim 5 wherein said salt of bis-tetrazole amine is the monoammonium salt of bis-tetrazole amine.