Crash bag propellant composition and method for generating nitrogen gas
First Claim
1. A propellant composition comprising, in combination,(a) a metal azide salt component of a group 1(a)- or 2(a)-type metal;
- and(b) an oxide of a non-toxic transition metal element sufficient to react with up to about 70% of said metal azide salt component; and
(c) an effective amount of a modifier component represented by the formula
space="preserve" listing-type="equation">Me.sub.x (An).sub.o whereinMe is defined as a cation of a non-toxic transition metal element;
An is defined as a member selected from the group consisting of a carbon-containing, a silicon-containing, and a boron-containing anion group chemically compatible with Me and capable of reacting with said metal azide salt component to obtain non-toxic by-products less basic than a metal hydroxide corresponding to said metal azide salt component; and
x and o are individually defined as positive numbers appropriate to indicate the corresponding chemical formula.
2 Assignments
0 Petitions
Accused Products
Abstract
A propellant composition and method for limiting the corrosive properties of by-products from initiated crash bag propellant compositions comprising a 1(a) or 2(a) group metal azide salt, an oxidizer in the form of an oxide of a non-toxic transition metal element, and an effective amount of a modifier component of the formula
Me.sub.x (An).sub.o
wherein
Me is a metal cation selected from iron, copper, cobalt, nickel, and molybdenum;
An is an anion group which is chemically compatible with and capable of reacting with the metal of the azide salt to form nitrogen gas and non-toxic by-products less corrosive than the corresponding hydroxide of the azide metal would be; and
x and o are individually defined as a positive number not exceeding about 4, the sum of which does not exceed about 5.
-
Citations
16 Claims
-
1. A propellant composition comprising, in combination,
(a) a metal azide salt component of a group 1(a)- or 2(a)-type metal; - and
(b) an oxide of a non-toxic transition metal element sufficient to react with up to about 70% of said metal azide salt component; and (c) an effective amount of a modifier component represented by the formula
space="preserve" listing-type="equation">Me.sub.x (An).sub.owherein Me is defined as a cation of a non-toxic transition metal element; An is defined as a member selected from the group consisting of a carbon-containing, a silicon-containing, and a boron-containing anion group chemically compatible with Me and capable of reacting with said metal azide salt component to obtain non-toxic by-products less basic than a metal hydroxide corresponding to said metal azide salt component; and x and o are individually defined as positive numbers appropriate to indicate the corresponding chemical formula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- and
- 13. A method for reducing corrosive properties of by-products generated by initiating the reaction of a crash bag propellant composition comprising a group 1(a)- or 2(a)-type metal azide component and an oxide of a transition metal as an oxidizer component, comprising replacing said oxidizer component, at least in part, with an effective amount of a modifier component of the formula
- space="preserve" listing-type="equation">Me.sub.x An.sub.o
wherein Me is defined as a cation of a non-toxic transition metal element;
An is defined as a member selected from the group consisting of a carbon-containing, a silicon-containing, and a boron-containing anion group chemically compatible with said transition metal cation of said modifier component, and capable of reacting with said metal azide salt component to obtain non-toxic by-products less basic than a metal hydroxide corresponding to said metal azide salt component; and
x and o are individually defined as positive numbers appropriate to indicate a corresponding chemical formula.- View Dependent Claims (14, 15, 16)
Specification