Ammonium perchlorate-containing gas generants
First Claim
1. In an ammonium perchlorate-containing gas generant composition that includes a non-azide, organic, nitrogen-containing fuel, the improvement comprising:
- the ammonium perchlorate being present with a mean particle size in excess of 100 microns, and the ammonium perchlorate-containing gas generant composition also containing a chlorine scavenger present in an amount effective to result in a gaseous effluent that is substantially free of hydrogen chloride when the gas generant is combusted, wherein at least about 98 weight percent of the chlorine scavenger is a copper-containing compound selected from the group consisting of basic copper nitrate, cupric oxide, copper diammine dinitrate-ammonium nitrate mixture wherein ammonium nitrate is present in the mixture in a range of about 3 to about 90 weight percent, copper diammine bitetrazole, a copper-nitrate complex resulting from reaction of 5-aminotetrazole with basic copper nitrate and combinations thereof.
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Accused Products
Abstract
Ammonium perchlorate-containing gas generant compositions which, upon combustion, produce or result in an improved effluent and related methods for generating an inflation gas for use in an inflatable restraint system are provided. Such ammonium perchlorate-containing gas generant compositions include ammonium perchlorate present with a mean particle size in excess of 100 microns. Such ammonium perchlorate-containing gas generant compositions also include or contain a chlorine scavenger present in an amount effective to result in a gaseous effluent that is substantially free of hydrogen chloride when the gas generant is combusted, wherein at least about 98 weight percent of the chlorine scavenger is a copper-containing compound. Suitable copper-containing chlorine scavenger compounds include basic copper nitrate, cupric oxide, copper diammine dinitrate-ammonium nitrate mixture wherein ammonium nitrate is present in the mixture in a range of about 3 to about 90 weight percent, copper diammine bitetrazole, a copper-nitrate complex resulting from reaction of 5-aminotetrazole with basic copper nitrate and combinations thereof.
40 Citations
28 Claims
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1. In an ammonium perchlorate-containing gas generant composition that includes a non-azide, organic, nitrogen-containing fuel, the improvement comprising:
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the ammonium perchlorate being present with a mean particle size in excess of 100 microns, and the ammonium perchlorate-containing gas generant composition also containing a chlorine scavenger present in an amount effective to result in a gaseous effluent that is substantially free of hydrogen chloride when the gas generant is combusted, wherein at least about 98 weight percent of the chlorine scavenger is a copper-containing compound selected from the group consisting of basic copper nitrate, cupric oxide, copper diammine dinitrate-ammonium nitrate mixture wherein ammonium nitrate is present in the mixture in a range of about 3 to about 90 weight percent, copper diammine bitetrazole, a copper-nitrate complex resulting from reaction of 5-aminotetrazole with basic copper nitrate and combinations thereof. - 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. An ammonium perchlorate-containing gas generant composition consisting essentially of:
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a non-azide, organic, nitrogen-containing fuel, a copper-containing chlorine scavenger selected from the group consisting of basic copper nitrate, cupric oxide, copper diammine dinitrate-ammonium nitrate mixture wherein ammonium nitrate is present in the mixture in a range of about 3 to about 90 weight percent, copper diammine bitetrazole, a copper-nitrate complex resulting from reaction of 5-aminotetrazole with basic copper nitrate and combinations thereof;
about 1 to about 10 composition weight percent ammonium perchlorate in a mean particle size in excess of 100 microns and about 1 to about 5 composition weight percent of at least one metal oxide burn rate enhancing and slag formation additive selected from the group consisting of silicon dioxide, aluminum oxide, zinc oxide, and combinations thereof, wherein the gas generant composition contains no more than about 1 composition weight percent of a copper-free chlorine scavenger, wherein the non-azide, organic, nitrogen-containing fuel, the copper-containing chlorine scavenger, the ammonium perchlorate and metal oxide burn rate enhancing and slag formation additive are present in sufficient relative amounts that the gas generant composition has an equivalence ratio in the range of about 0.96 to about 1.06, and wherein combustion of the gas generant composition results in a gaseous effluent that is substantially free of hydrogen chloride, carbon monoxide, ammonia, nitrogen dioxide and nitric oxide. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification
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- Resources
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Current AssigneeAutoliv ASP Incorporated (Autoliv Incorporated)
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Original AssigneeAutoliv ASP Incorporated (Autoliv Incorporated)
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InventorsTaylor, Robert D., Mendenhall, Ivan V., Barnes, Michael W.
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current149/76
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CPC Class CodesC06B 23/02 for neutralising poisonous ...C06B 29/22 the salt being ammonium per...
