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AssigneeAutoliv ASP, Inc.
InventorsIvan V. Mendenhall, Gary K. Lund, Jadd Shelton
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Cool burning hydrate fuels are provided for gas generant compositions for automotive inflatable restraint systems. The cool burning hydrate fuel is a compound comprising carbon, hydrogen, oxygen, a transition metal, and optionally nitrogen. The cool burning hydrate fuel is a transition metal salt of an organic compound or transition metal complex salt having (i) at least one functional group selected from the group consisting of: amide, imide, hydroxyl, carboxylic acid, and combinations thereof, (ii) an oxygen-to-carbon mole ratio of greater than or equal to about 0.5, (iii) at least one-half a water molecule of hydration, and (iv) an exothermic heat of formation of at least about −400 KJ/mole. The fuel may have a water release temperature of ≥about 140° C. The cool burning hydrate fuel may be one or more of copper cyanurate dihydrate, a copper melamine oxalate dihydrate, and a copper malonate hydrate.
A gas generant composition for an automotive inflatable restraint system comprising a cool burning hydrate fuel comprising carbon, hydrogen, oxygen, and a transition metal, wherein the cool burning hydrate fuel is present at greater than or equal to about 5% by weight to less than or equal to about 50% by weight of the gas generant composition, and the cool burning hydrate fuel is a transition metal salt of an organic compound or a transition metal complex salt of an organic compound that:
A gas generant composition for an automotive inflatable restraint system comprising a cool burning hydrate fuel comprising carbon, hydrogen, oxygen, and a transition metal, wherein the cool burning hydrate fuel is present at greater than or equal to about 5% by weight to less than or equal to about 50% by weight of the gas generant composition, and the cool burning hydrate fuel is a transition metal salt of an organic compound or a transition metal complex salt of an organic compound that:
A cool burning gas generant composition for an automotive inflatable restraint system comprising a co-fuel, an oxidizer, one or more gas generant additives, and a cool burning hydrate fuel,
A cool burning gas generant composition for an automotive inflatable restraint system comprising copper cyanurate dihydrate, a co-fuel comprising guanidine nitrate, an oxidizer comprising basic copper nitrate, one or more gas generant additives, wherein a maximum flame temperature at combustion (Tc) is less than or equal to about 1700K (1,427° C.).
Dependencies are inferred from the claim text.