Low temperature sensitivity oxygen generating compositions
AssigneeBE Intellectual Property, Inc.
InventorsYunchang Zhang, James C. Cannon
Life of this patent
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Abstract
The oxygen generation compositions include about 0.5-15% by weight of a substantially carbon-free metal fuel, and about 0.1-20% by weight of alkali metal silicate, stannate, titanate or zirconate as a reaction rate and core rheology modifier and chlorine suppresser. The oxygen generating compositions also contain about 0.1-15% by weight of a transition metal oxide catalyst; and the remainder is substantially an alkali metal chlorate or perchlorate.
Claims18
An oxygen generating composition for producing a breathable oxygen gas upon ignition of the composition, comprising:
- about 0.5-15% by weight of a substantially carbon-free copper metal fuel;
- about 0.1% to about 15% by weight of at least one transition metal oxide catalyst;
- about 0.1% to about 20% by weight of an additive selected from the group consisting of an alkali metal silicate, an alkali metal stannate, an alkali metal titanate, an alkali metal zirconate, and mixtures thereof;
- and
- the remainder substantially comprising an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof.
An oxygen generating composition for producing a breathable oxygen gas upon ignition of the composition, comprising:
- about 0.5-15% by weight of a substantially carbon-free copper metal fuel;
- about 0.1% to about 15% by weight of at least one transition metal oxide catalyst;
- about 0.1 to about 20% by weight of an additive selected from the group consisting of an alkali metal silicate, an alkali metal stannate, an alkali metal titanate, an alkali metal zirconate, and mixtures thereof;
- and
- about 50% to about 99.3% by weight of an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof.
An oxygen generating composition for producing a breathable oxygen gas upon ignition of the composition, comprising:
- about 0.5-15% by weight of a substantially carbon-free copper metal fuel;
- about 0.1% to about 15% by weight of at least one transition metal oxide catalyst;
- about 1% to about 10% by weight of an alkali metal silicate;
- and
- about 60% to about 98.4% by weight of an oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof.
Dependencies are inferred from the claim text.