Gas generating material
First Claim
1. A gas generating grain having a particulate booster coating thereon, said coating comprising an alkali metal azide, a water-soluble inorganic oxidizer in approximately a stoichiometric proportion of oxidizer to azide, and a water-insoluble metal oxide, said coating being applied to said grain as a water slurry and dried.
1 Assignment
0 Petitions
Accused Products
Abstract
A gas generating grain has a water-based particulate booster coating thereon. The coating comprises an alkali metal azide, a water-soluble inorganic oxidizer in approximately a stoichiometric proportion of oxidizer to azide, and a nucleating amount of a small particle size metal oxide, preferably selected from the group consisting of iron oxide, nickel oxide and aluminum oxide. The coating is applied to said grain from a water slurry and dried, and when dried has an average particle size of less than about 50 microns.
-
Citations
36 Claims
- 1. A gas generating grain having a particulate booster coating thereon, said coating comprising an alkali metal azide, a water-soluble inorganic oxidizer in approximately a stoichiometric proportion of oxidizer to azide, and a water-insoluble metal oxide, said coating being applied to said grain as a water slurry and dried.
-
23. A gas generating grain having a particulate booster coating thereon, said coating comprising an alkali metal azide, a water-soluble inorganic oxidizer in approximately a stoichiometric proportion of oxidizer to azide, and a nucleating amount of a water-insoluble metal oxide, said coating being applied to said grain as a water slurry and dried and when dried having an average particle size of about 50 microns or less.
-
24. A method for making a gas generating grain having a booster coating thereon, comprising the steps of:
-
(a) preparing said grain; (b) preparing a coating slurry comprising water, an alkali metal azide, a water soluble inorganic oxidizer, and a water-insoluble metal oxide; (c) immersing said grain in said coating slurry; (d) removing said grain from said coating slurry and drying said grain and the coating thereon. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
-
Specification