Back to results
US 8,273,198 B1Granted
Gas generant with auto-ignition function
AssigneeTK Holdings Inc.
InventorDeborah L. Hordos
Life of this patent
Estimating the term…
Abstract
Gas generating compositions include a primary fuel selected from aminotetrazoles and heterocyclic amines; a carbonyl donor selected from formaldehyde, formamide, or an ammonium formate; and a basic constituent selected from alkali and alkaline earth metal aminotetrazoles, hydantoin and basic derivatives thereof, and mixtures thereof. Gas generators and vehicle occupant protection systems incorporating the present compositions are also described.
Claims15
A composition comprising:
- a primary fuel selected from the group of aminotetrazoles and heterocyclic amines wherein said total fuel component is provided at about 5-50 weight percent of the total composition;
- a carbonyl donor selected from formaldehyde, formamide and an ammonium formate, said carbonyl donor provided at least at about 10 weight percent of the total composition;
- and
- a basic constituent selected from alkali and alkaline earth metal salts of aminotetrazoles, hydantoin and basic derivatives thereof, and mixtures thereof, said basic constituent provided at least at about two weight percent of the total composition
- wherein said carbonyl donor is provided at about 35-65 weight percent of the total composition.
2 more elements
A composition comprising:
- a primary fuel selected from the group of aminotetrazoles and heterocyclic amines wherein said total fuel component is provided at about 5-50 weight percent of the total composition;
- a second compound containing a carbonyl group, said second compound provided at least at about 10 weight percent of the total composition;
- and
- a basic constituent selected from alkali and alkaline earth metal salts of aminotetrazoles, hydantoin and basic derivatives thereof, and mixtures thereof, said basic constituent provided at least at about two weight percent of the total composition,
- wherein said second compound is provided at about 35-65 weight percent of the total composition.
2 more elements
A composition comprising:
- 5-aminotetrazole provided at about 5-50 weight percent of the total composition;
- formaldehyde provided at least at about 10 weight percent of the total composition;
- and
- potassium 5-aminotetrazole provided at least at about two weight percent of the total composition.
1 more element
Dependencies are inferred from the claim text.