Burn rate-enhanced high gas yield non-azide gas generants
First Claim
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1. In a method of forming a burn rate-enhanced high gas yield non-azide gas generant which includes a gas generating fuel and between about 15 and about 55 wt % of a metal amine nitrate oxidizer wherein the metal of the metal amine nitrate is selected from the group of copper and zinc, the steps of:
- adding ammonium nitrate and a material containing the metal of the metal amine nitrate with a first gas generant precursor material to form a second gas generant precursor material andheating the second gas generant precursor material to form a gas generant material containing between about 15 and about 55 wt % of;
copper diamine dinitrate, where the metal is copper andzinc diamine dinitrate, where the metal is zinc.
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Abstract
Gas generant compositions and methods of processing are provided which produce or result in a relatively high burning rate and low burning rate pressure exponent, while also desirably providing a high gas output, as compared to normal or typical gas generant formulations such as used in association with vehicle occupant restraint airbag cushions.
17 Citations
20 Claims
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1. In a method of forming a burn rate-enhanced high gas yield non-azide gas generant which includes a gas generating fuel and between about 15 and about 55 wt % of a metal amine nitrate oxidizer wherein the metal of the metal amine nitrate is selected from the group of copper and zinc, the steps of:
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adding ammonium nitrate and a material containing the metal of the metal amine nitrate with a first gas generant precursor material to form a second gas generant precursor material and heating the second gas generant precursor material to form a gas generant material containing between about 15 and about 55 wt % of; copper diamine dinitrate, where the metal is copper and zinc diamine dinitrate, where the metal is zinc. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of forming a burn rate-enhanced high gas yield non-azide gas generant which includes a non-azide gas generating fuel and a metal amine nitrate oxidizer wherein the metal of the metal amine nitrate oxidizer is selected from the group of copper and zinc, the method comprising:
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adding ammonium nitrate and a material containing the metal of the metal amine nitrate oxidizer with a first gas generant precursor material containing a non-azide gas generating fuel to form a second gas generant precursor material and heating the second gas generant precursor material to form a gas generant material containing copper diamine dinitrate, where the metal of the metal amine nitrate oxidizer is copper and zinc diamine dinitrate, where the metal of the metal amine nitrate oxidizer is zinc. - View Dependent Claims (19, 20)
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Specification