Copper containing igniter composition for a gas generant
First Claim
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1. An igniter composition comprising:
- boron fuel;
an oxidizer; and
a gas-forming source of condensable copper metal effective for transferring heat to a gas generant, wherein the gas-forming source of condensable copper metal is a copper complex that includes at least one ligand selected from the group consisting of anionic ligands, neutral alkyl ligands having at least one balancing anion, neutral ammonia ligands having at least one balancing anion, and combinations thereof.
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Abstract
An igniter composition for a gas generant and a related method of igniting a gas generant are provided in which, in addition to a boron fuel component and an oxidizer component, the igniter composition additionally includes a gas-forming source of a condensable metal effective for transferring heat to the gas generant.
13 Citations
30 Claims
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1. An igniter composition comprising:
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boron fuel;
an oxidizer; and
a gas-forming source of condensable copper metal effective for transferring heat to a gas generant, wherein the gas-forming source of condensable copper metal is a copper complex that includes at least one ligand selected from the group consisting of anionic ligands, neutral alkyl ligands having at least one balancing anion, neutral ammonia ligands having at least one balancing anion, and combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An igniter composition comprising:
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about 8 to about 20 composition weight percent boron;
about 30 to about 80 composition weight percent oxidizer; and
about 10 to about 40 composition weight percent gas-forming source of condensable copper metal effective for transferring heat to a gas generant, wherein the gas-forming source of condensable copper metal includes a copper complex having at least one ligand selected from the group consisting anionic ligands, neutral alkyl ligands having at least one balancing anion, neutral ammonia ligands having at least one balancing anion, and combinations thereof. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for igniting a gas generant to inflate an airbag cushion of an inflatable restraint system of a motor vehicle comprising the steps of:
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providing an igniter composition including boron fuel, an oxidizer and a gas-forming copper complex including at least one ligand selected from the group consisting of anionic ligands, neutral alkyl ligands having at least one balancing anion, neutral ammonia ligands having at least one balancing anion, and combinations thereof; and
igniting the igniter composition such that the gas-forming copper complex reacts with the boron fuel and the oxidizer to form a gas and condensable copper metal that conducts heat to the gas generant. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification