High gas yield generant compositions
First Claim
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1. A gas generant composition comprising a mixture of guanidine nitrate, ammonium nitrate and a transition metal ammine nitrate and additionally comprising a ballistic additive, wherein the ballistic additive is present in a concentration of about 5 wt % to about 15 wt % of the composition.
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Abstract
Gas generant compositions, such as may be suited for use in inflating automotive inflatable restraint airbag cushions, are provided. Such gas generant compositions generally contain a mixture of guanidine nitrate, ammonium nitrate, and a transition metal ammine nitrate, such as copper diammine dinitrate and preferably also contain one or more ballistic additives.
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Citations
20 Claims
- 1. A gas generant composition comprising a mixture of guanidine nitrate, ammonium nitrate and a transition metal ammine nitrate and additionally comprising a ballistic additive, wherein the ballistic additive is present in a concentration of about 5 wt % to about 15 wt % of the composition.
- 7. A gas generant composition comprising a mixture of guanidine nitrate, ammonium nitrate and copper diammine dinitrate, wherein said copper diammine dinitrate is present in a concentration of about 3 wt % to about 12 wt % of the composition.
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12. A gas generant composition comprising a mixture of guanidine nitrate, ammonium nitrate and copper diammine dinitrate and additionally comprising a ballistic additive, wherein the molar ratio of ballistic additive to copper diammine dinitrate is about 1 to about 3.
- 13. A gas generant composition comprising a mixture of guanidine nitrate, ammonium nitrate, and copper diammine dinitrate, wherein said copper diammine dinitrate is present in a relative amount of about 10% to about 20% of the total of the mass of the copper diammine dinitrate and ammonium nitrate.
- 16. A gas generant composition comprising a mixture of guanidine nitrate, ammonium nitrate and a transition metal ammine nitrate and additionally comprising a ballistic additive, wherein the ballistic additive is a combination of SiO2 and Al2 O3.
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18. A melt-processible gas generant composition comprising:
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35-60 wt % guanidine nitrate, 30-60 wt % ammonium nitrate, 3-12 wt % copper diammine dinitrate and 5-15 wt % of ballistic additive selected from the group of ZrO2, TiO2, SiO2, Al2 O3, bentonite and combinations thereof. - View Dependent Claims (19, 20)
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Specification