Fluid extraction for airbag inflators
First Claim
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1. A method comprising:
- contacting a hydrocarbon-containing solid substrate material with an extraction fluid at conditions whereat the extraction fluid has a reduced density of at least 0.2 and a reduced density of no more than 2.0 wherein at least a portion of the hydrocarbon contained in the solid material is extracted into the extraction fluid to fonn an inflation gas-producing mixture.
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Abstract
Inflation apparatuses and methods are provided wherein a hydrocarbon-containing inflation gas-producing mixture is formed via the fluid extraction of the hydrocarbon from a substrate material.
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Citations
43 Claims
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1. A method comprising:
contacting a hydrocarbon-containing solid substrate material with an extraction fluid at conditions whereat the extraction fluid has a reduced density of at least 0.2 and a reduced density of no more than 2.0 wherein at least a portion of the hydrocarbon contained in the solid material is extracted into the extraction fluid to fonn an inflation gas-producing mixture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for the in situ formation of an inflation gas-producing mixture, said method comprising:
contacting a hydrocarbon-containing substrate material with an extraction fluid containing at least one extraction medium selected from the group consisting of nitrous oxide, carbon dioxide, and mixtures thereof and at conditions whereat the extraction fluid has a reduced density of at least 0.2 and a reduced density of no more than 2.0 wherein at least a portion of the hydrocarbon contained in the solid material is extracted into the extraction fluid to form the inflation gas-producing mixture. - View Dependent Claims (22, 23, 24)
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25. An inflation gas-providing device wherein a mixture including a hydrocarbon material and an oxygen-containing material react to provide inflation gas, the gas-providing device comprising:
a chamber having contents including a hydrocarbon-containing solid substrate material and an extraction fluid at conditions whereat the extraction fluid has a reduced density of at least 0.2 and a reduced density of no more than 2.0 and wherein at least a portion of the hydrocarbon contained in the substrate material is extracted into the extraction fluid to form an inflation gas-producing mixture. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
Specification