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US 5,125,684 AGranted
Extrudable gas generating propellants, method and apparatus
AssigneeHercules Incorporated
InventorRichard V. Cartwright
Life of this patent
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Abstract
A stable extrudable non-azide crash bag propellant composition for generating high quality nitrogen gas and a low temperature process for producing the same from an extrudable mass containing an effective amount of a cellulose-based binder.
Claims22
A crash bag propellant comprising, in combination,
- (a) about 45-80 wt % oxidizer salt;
- (b) an effective amount of a cellulose-based binder;
- (c) about 10-35 wt % of energetic component selected from the group consisting of nitroguanidine, triaminoguanidine nitrate, ethylene dinitramine, cyclotrimethylenetetranitramine, cyclotetramethylenetetranitramine, trinitrotoluene and pentaerythritoltetranitrate;
- and
- (d) up to about 5 wt % additive(s).
2 more elements
A process for preparing extruded smokeless-type crash bag propellant comprising
- A. forming an extrudible mass comprising
- (a) 45-80 wt. % oxidizer salt;
- (b) an effective amount of a cellulose based binder;
- (c) about 10-35 wt. % of at least one energetic component selected from the group consisting of nitroguanidine, triaminoguanidine nitrate, ethylene dinitramine, cyclotrimethylenetetranitroamine, trinitrotoluene and pentaerythritoltetranitrate;
- (d) up to about 5% additive(s);
- and
- (e) up to about 25 wt. % removable solvent;
- B. blocking the extrudible mass, as desired;
- C. extruding the blocked extrudible mass through a die;
- D. cutting the extrudate and drying the cut particles;
- and
- E. applying an antistatic agent onto the particulate product, as desired, to obtain the desired propellant.
9 more elements
Dependencies are inferred from the claim text.