Abstract: Pyrotechnic 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 result in relatively high gas outputs and burn rates. Also provided are corresponding or associated gas generating devices and inflatable vehicle occupant safety restraint systems.

Abstract: An igniter composition for a gas generant and a related method of igniting a gas generant are provided in which, in addition to a boron fuel component and an oxidizer component, the igniter composition additionally includes a gas-forming source of a condensable metal effective for transferring heat to the gas generant.

Abstract: An ignition composition effective to form a porous igniter substance capable of adhering to an associated inflator apparatus surface for use in an automotive inflatable restraint system and a method for preparing a porous igniter coating formed from the ignition composition are provided. The ignition composition includes a fuel, an oxidizer, a polymeric binder and a blowing agent effective, upon decomposition, to increase the surface area of the porous igniter substance. The porous igniter substance or coating is formed by heating the ignition composition to a predetermined temperature.

Abstract: A porous igniter body and a method of making the same are provided wherein a blowing agent component including at least one thermally decomposable blowing agent solid is mixed with at least one igniter fuel and at least one igniter oxidizer to form an igniter body precursor. The igniter body precursor is subsequently subjected to a temperature sufficient to decompose at least a portion of the blowing agent to form the porous igniter body.

Abstract: Inflator device assemblies wherein an igniter composition used to ignite an associated gas generant material is provided on a selected surface, such as on a damper pad, within the inflator device. Suitable igniter compositions may include a silicone resin additive effective to adhere the igniter composition to a surface within the inflator device.

Abstract: Gas generant grains, such as tablets, granules or particulates, are coated with a dispersion of oxidizer particulates, metal fuel particulates, a fluoropolymer binder with which at least a portion of the metal fuel is reactive, and a solvent for the fluoropolymer.

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: Gas generant compositions which include at least one transition metal complex of ethylenediamine 5,5′-bitetrazole 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: Gas generating compositions containing or including a sufficient quantity of a non-nitrate containing ammonia source whereby, upon reaction of the gas generating composition, NOx products are present in the product gas in a reduced amount as compared to reaction product gas resulting from reaction of the same composition without said quantity of non-nitrate containing ammonia source. Also disclosed are associated methods of reducing NOx products present in an effluent of a gas generating composition that upon combustion forms gas useful for inflating a vehicle occupant safety restraint device.

Abstract: Inflator device assemblies containing an expandable fluid effective to provide a gaseous inflation medium also advantageously employ or incorporate a pyrotechnic material such as to augment or enhance at least one fill characteristic of the gaseous inflation medium. The pyrotechnic material is provided on a selected non-gas generant surface within the inflator device. Suitable pyrotechnic compositions may include a binder additive effective to adhere the pyrotechnic composition to a surface within the inflator device.

Abstract: A gas generant composition used in pressure activated restraint system devices such as micro-gas generator applications such as seat belt pretensioners is provided. The gas generant composition includes a potassium perchlorate gas generant additive in addition to a non-azide nitrogen-containing gas generating fuel, a metal ammine nitrate oxidizer, and a metal oxide burn rate enhancing and slag formation additive. The gas generant composition desirably has improved ignitability as compared to a similar composition without the potassium perchlorate gas generant additive. The gas generant composition also desirably produces or results in effluents having either or both reduced carbon monoxide and NOx contents as compared to the effluent produced or resulting from a similar composition but without the inclusion of the potassium perchlorate gas generant additive.

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: Gas generant compositions and methods of gas generation are provided whereby desired gas generation can be realized without requiring the presence and use a charge or coating of an associated igniter composition.

Abstract: Inflator device assemblies wherein an igniter composition used to ignite an associated gas generant material is provided on a selected surface, such as on a damper pad, within the inflator device. Suitable igniter compositions may include a silicone resin additive effective to adhere the igniter composition to a surface within the inflator device.

Abstract: A method for increasing the bum 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: Gas generant compositions are provided which compositions react to produce nitrogen gas and which compositions include guanylurea nitrate and at least one transition metal-containing water-compatible oxidizer. Also, related methods of gas generation are provided.

Abstract: Inflator device assemblies containing an expandable fluid effective to provide a gaseous inflation medium also advantageously employ or incorporate a pyrotechnic material such as to augment or enhance at least one fill characteristic of the gaseous inflation medium. The pyrotechnic material is provided on a selected non-gas generant surface within the inflator device. Suitable pyrotechnic compositions may include a binder additive effective to adhere the pyrotechnic composition to a surface within the inflator device.

Abstract: Inflator device assemblies wherein an igniter composition used to ignite an associated gas generant material is provided on a selected surface, such as on a damper pad, within the inflator device. Suitable igniter compositions may include a silicone resin additive effective to adhere the igniter composition to a surface within the inflator device.

Abstract: Gas generant compositions and methods of gas generation are provided whereby desired gas generation can be realized without requiring the presence and use a charge or coating of an associated igniter composition.

Abstract: Methods and apparatuses for gas generation via a water-supplying compound and a water-reactive fuel precursor.