Preparation of anhydrous tetrazole gas generant compositions
First Claim
1. A method for preparing a gas generating composition comprising the steps of:
- a) pressing a quantity of gas generating material into pellets, said gas generating material comprising an oxidizer and a hydrated fuel, said fuel selected from the group consisting of tetrazoles; and
b) drying said pellets until the hydrated fuel is converted to anhydrous form.
12 Assignments
0 Petitions
Accused Products
Abstract
A solid composition for generating nitrogen containing gas is provided. The composition includes an oxidizer and a non-azide fuel selected from anhydrous tetrazoles, derivatives, salts, complexes, and mixtures thereof. Preferred tetrazoles include 5-aminotetrazole and bis-(1(2)H-tetrazol-5-yl)-amine, a metal salt, a salt with a nonmetallic cation of a high nitrogen content base or a complex thereof. The salts and complexes are generally metal salts and complexes. The metal can be a transition metal. Metals that have been found to be particularly useful include copper, boron, cobalt, zinc, potassium, sodium, and strontium. The oxidizer is generally a metal oxide or a metal hydroxide. The composition can include certain other components such as secondary oxidizers, burn rate modifiers, slag formers, and binders.
156 Citations
22 Claims
-
1. A method for preparing a gas generating composition comprising the steps of:
-
a) pressing a quantity of gas generating material into pellets, said gas generating material comprising an oxidizer and a hydrated fuel, said fuel selected from the group consisting of tetrazoles; and b) drying said pellets until the hydrated fuel is converted to anhydrous form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method for producing a gas generating composition comprising the steps of:
-
a) obtaining a quantity of gas generating material, said gas generating material comprising an oxidizer and a hydrated fuel, said fuel selected from the group consisting of tetrazoles; b) preparing a slurry of said gas generating material in water; c) drying said slurried material to a constant weight; d) pressing said material into pellets while said fuel is in a hydrated form; and e) drying said pellets until the gas generating material is in anhydrous form. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
-
Specification