Burn rate-enhanced basic copper nitrate-containing gas generant compositions and methods
AssigneeAutoliv ASP, Inc.
InventorsIvan V. Mendenhall, Robert D. Taylor, Michael W. Barnes, David W. Parkinson
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Abstract
Basic copper nitrate-containing gas generant compositions and associated methods are provided for producing or resulting in increased burn rates via the inclusion of an effective amount of one or more metal (e.g., Al, Ti, Zn, Mg and/or Zr) oxide additives.
Claims24
A gas generant composition having an increased burn rate, said composition comprising:
- a fuel component,
- a basic copper nitrate oxidizer component therefor, and
- a burn rate enhancing amount of a metal oxide additive component selected from the group consisting of Al.sub.2 O.sub.3, TiO.sub.2, ZnO, MgO and ZrO.sub.2.
A method for making a gas generant formulation having an increased burn rate, the gas generant formulation containing a fuel and a basic copper nitrate oxidizer, said method comprising:
- including about 0.5 to about 5 weight percent of at least one metal oxide selected from the group consisting of Al.sub.2 O.sub.3, TiO.sub.2, ZnO, MgO and ZrO.sub.2 in the gas generant formulation.
An ignitable gas generant composition having enhanced burn rate and slag formation characteristics, said composition comprising:
- about 30 to about 60 weight percent of a gas generating fuel component comprising guanidine nitrate,
- about 40 to about 65 weight percent of a basic copper nitrate oxidizer,
- a burn rate enhancing amount of a metal oxide selected from the group consisting of TiO.sub.2, ZnO, MgO and ZrO.sub.2 and
- a slag formation enhancing amount of SiO.sub.2.
An ignitable gas generant composition having enhanced burn rate and slag formation characteristics, said composition comprising:
- about 30 to about 60 weight percent of a gas generating fuel component comprising guanidine nitrate,
- about 40 to about 65 weight percent of a basic copper nitrate oxidizer,
- a burn rate enhancing amount of Al.sub.2 O.sub.3 and
- a slag formation enhancing amount of SiO.sub.2.
Dependencies are inferred from the claim text.