Anhydrous 5-aminotetrazole gas generant compositions and methods of preparation
First Claim
1. A gas generating composition comprising a fuel selected from the group consisting of anhydrous 5-aminotetrazole, anhydrous salts thereof, anhydrous complexes thereof, and mixtures thereof, and an oxidizer, said oxidizer being selected from the group consisting of metal oxides, metal hydroxides, metal nitrates, metal nitrites, metal chlorates, metal perchlorates, metal peroxides, ammonium nitrate, ammonium perchlorate, and mixtures thereof.
9 Assignments
0 Petitions
Accused Products
Abstract
A solid composition for generating a nitrogen containing gas is provided. The composition includes an oxidizer and a 5-aminotetrazole fuel selected from anhydrous 5-aminotetrazole derivatives, salts, complexes, and mixtures 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.
-
Citations
20 Claims
- 1. A gas generating composition comprising a fuel selected from the group consisting of anhydrous 5-aminotetrazole, anhydrous salts thereof, anhydrous complexes thereof, and mixtures thereof, and an oxidizer, said oxidizer being selected from the group consisting of metal oxides, metal hydroxides, metal nitrates, metal nitrites, metal chlorates, metal perchlorates, metal peroxides, ammonium nitrate, ammonium perchlorate, and mixtures thereof.
-
17. An inflatable restraining device comprising a collapsed, inflatable air bag, means for generating gas connected to that air bag for inflating the air bag wherein the gas generating means contains a nontoxic gas generating composition which comprises a fuel selected from the group consisting of anhydrous 5-aminotetrazole, anhydrous salts thereof, anhydrous complexes thereof and mixtures thereof, and an oxidizer, said oxidizer being selected from the group consisting of metal oxides, metal hydroxides, metal nitrates, metal nitrites, metal chlorates, metal perchlorates, metal peroxides, ammonium nitrate, ammonium perchlorate, and mixtures thereof.
-
18. A vehicle containing a supplemental restraint system having an air bag system comprising:
a collapsed, inflatable air bag, means for generating gas connected to that air bag for inflating the air bag wherein the gas generating means contains a nontoxic gas generating composition which comprises a fuel selected from the group consisting of anhydrous 5-aminotetrazole, anhydrous salts thereof, anhydrous complexes thereof and mixtures thereof, and an oxidizer, said oxidizer being selected from the group consisting of metal oxides, metal hydroxides, metal nitrates, metal nitrites, metal chlorates, metal perchlorates, metal peroxides, ammonium nitrate, ammonium perchlorate and mixtures thereof.
-
19. A gas generating composition consisting essentially of anhydrous 5-aminotetrazole, an oxidizer selected from the group consisting of metal oxides and metal hydroxides, and at least one additive selected from the group consisting of binders, burn rate modifiers, slag formers, release agents, and agents which remove NOx from the produced gas.
-
20. A pellet prepared by the process comprising the steps of:
-
(a) obtaining a desired quantity of gas generating material, said gas generating material comprising an oxidizer and hydrated 5-aminotetrazole; (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 in hydrated form; and (e) drying said pellets such that the gas generating material is in anhydrous or substantially anhydrous form.
-
Specification