Oxygen generating compositions
First Claim
1. An oxygen generating composition for providing an emergency source of breathable oxygen gas for several minutes upon ignition of the composition, comprising:
- about 0.5-15% by weight of metal powder as a fuel;
a transition metal oxide catalyst selected from the group consisting of CoO, Co3 O4, Co2 O3, and CoOx, where x equals 1.0 to 1.5, iron oxide, and mixtures thereof;
about 0.1-5% by weight magnesium oxide; and
the remainder of an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof, said composition being capable of producing said breathable oxygen gas for a period of several minutes for sustaining life.
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Accused Products
Abstract
The oxygen generation composition utilizes magnesium oxide to modify and smooth the oxygen generation rate, suppress chlorine formation, improve the rheology and uniformity of performance of an operating chemical oxygen candle, and to facilitate the mixing of the candle ingredients. The oxygen generation composition typically comprises a metal powder as a fuel; magnesium oxide; and an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof. The composition can also include a transition metal oxide catalyst, and can include a binder.
26 Citations
17 Claims
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1. An oxygen generating composition for providing an emergency source of breathable oxygen gas for several minutes upon ignition of the composition, comprising:
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about 0.5-15% by weight of metal powder as a fuel; a transition metal oxide catalyst selected from the group consisting of CoO, Co3 O4, Co2 O3, and CoOx, where x equals 1.0 to 1.5, iron oxide, and mixtures thereof; about 0.1-5% by weight magnesium oxide; and the remainder of an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof, said composition being capable of producing said breathable oxygen gas for a period of several minutes for sustaining life. - View Dependent Claims (2, 3, 4)
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5. An oxygen generating composition for producing a breathable oxygen gas for emergency use for sustaining life for several minutes upon ignition of the composition, the composition consisting essentially of:
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about 0.5-15% by weight of metal powder as a fuel; about 0.1-5% by weight magnesium oxide; and the remainder of an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof, said composition being capable of producing said breathable oxygen gas for a period of several minutes for sustaining life. - View Dependent Claims (6, 7, 8, 9)
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10. An oxygen generating composition for producing a breathable oxygen gas for emergency use for sustaining life aboard aircraft for several minutes upon ignition of the composition, the composition consisting essentially of:
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about 0.5-15% by weight of metal powder as a fuel; from zero to about 15% by weight of a transition metal oxide catalyst selected from the group consisting of CoO, Co3 O4, Co2 O3, and CoOx, where x equals 1.0 to 1.5, iron oxide, and mixtures thereof; about 0.1-5% by weight of magnesium oxide; from zero to about 5% of a binder; and the remainder of an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof, said composition being capable of producing said breathable oxygen gas for a period of several minutes for sustaining life aboard aircraft. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. An oxygen generating composition for providing an emergency source of breathable oxygen gas aboard aircraft for several minutes upon ignition of the composition, the composition consisting essentially of:
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about 1-10% by weight of metal powder as a fuel; about 0.1-15% by weight of a transition metal oxide catalyst selected from the group consisting of CoO, Co3 O4, Co2 O3, and CoOx, where x equals 1.0 to 1.5, iron oxide, and mixtures thereof; about 0.5-4% by weight of magnesium oxide; about 1-5% of a binder; and the remainder of an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof, said composition being capable of producing said breathable oxygen gas for a period of several minutes for sustaining life aboard aircraft.
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Specification