Abstract:
A method for increasing the burn rate of a gas generant formulation is provided involving the addition of a quantity of at least one transition metal complex of diammonium bitetrazole to the gas generant formulation.
Abstract:
Igniter compositions comprising strontium nitrate, an al/mg alloy and a gas-producing fuel component and methods of processing are provided which produce or result in relatively little particulate material, as compared to typical igniter compositions used in association with vehicle occupant restraint airbag cushions.
Abstract:
An inflator that includes a quantity of gas generant housed within a chamber. A liquid including at least one of a fuel soluble in the liquid or an oxidizer soluble in the liquid and a piston are housed within another chamber of the inflator. This chamber is sealed. Upon actuation, movement of the piston hydraulically expels the liquid through an opening in the piston such that the liquid contacts the gas formed by combustion of the gas generant and cools the same. The fuel and/or oxidizer in the liquid can react to form additional gas.
Abstract:
A gas generant composition includes a non-azide, organic, nitrogen-containing fuel; a substituted basic metal nitrate and at least one transition metal complex of diammonium bitetrazole. The substituted basic metal nitrate can be a reaction product of an acidic organic compound and a basic metal nitrate. The transition metal complex of diammonium bitetrazole is effective to enhance the burn rate presure sensitivity of the gas generant composition as compared to the same gas generant composition without inclusion of the at least one transition metal complex of diammonium bitetrazole.
Abstract:
A flexible inflator for an inflation assembly and related gas generating propellant compositions are provided. The flexible inflator includes at least one elongated strand of a propellant co-extruded with a moisture barrier. The propellant compositions are adapted for co-extrusion with a plastic sheath which forms the moisture barrier surrounding the propellant and include a binder fuel component effective to render the composition flexible and to impart sufficient adhesive properties such that the propellant composition and the plastic sheath adhere together, and an oxidizer.
Abstract:
Gas generant compositions which include at least one transition metal complex of ethylenediamine 5,5'-bitetrazole and gas generant compositions which include a fuel material of cobalt III nitrate complex with ammonia or water ligands, a burn rate catalyst of copper bis ethylenediamine dinitrate, and an oxidizer of basic copper nitrate are provided to produce or results in compositions having relatively high burn rates. Also provided are corresponding or associated gas generating devices and inflatable vehicle occupant safety restraint systems and methods of gas generation.
Abstract:
The inclusion of between about 15 to about 60 formulation weight percent of a reaction product of basic copper nitrate and at least one transition metal complex of 5-aminotetrazole, wherein the at least one transition metal complex of 5-aminotetrazole and the basic copper nitrate are included in a weight ratio of no more than 1 part of the at least one transition metal complex of 5-aminotetrazole per 1 part of basic copper nitrate in azide fuel-free gas generant formulations exhibiting increased burn rates, as compared to the same formulation without the inclusion of that reaction product.
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.
Abstract:
Gas generant compositions are provided which compositions react to produce nitrogen gas and which compositions include at least one complex of guanylurea nitrate with at least one metal element having an atomic number of 21-30 and 39-50 and sufficient oxidizer such that, upon combustion reaction initiation of the gas generating composition, reaction products including a quantity of nitrogen gas are produced. Also, related methods of making a gas generating composition and associate methods of gas generation are provided.
Abstract:
A phase stabilized ammonium nitrate and a method of making the same wherein ammonium nitrate is stabilized through the presence of a stabilizing metal diammine dinitrate without requiring or necessitating the isolation of explosive metal tetrammine nitrate complexes.