Ignition enhancement composition for an airbag inflator

Details Ignition enhancement composition for an airbag inflator Ignition enhancement composition for an airbag inflator

C - Chemistry, Metallurgy

06

B

C06B 33/02 (2006.01) C06B 31/02 (2006.01) C06B 33/00 (2006.01) C06B 33/04 (2006.01) C06B 33/06 (2006.01) C06B 33/08 (2006.01) C06C 9/00 (2006.01) B60R 21/26 (2006.01)

Patent

CA 2295744

An ignition enhancer and gas heater composition useful in the generation of inflation gas for vehicle occupant airbags contains a non-azide fuel, an oxidizer and a metal. The ignition enhancer composition provides reliable and consistent ignition of a main propellant composition to produce a sufficient amount of gas to inflate an attached airbag within ten to eighty milliseconds or successfully heat the stored gas in a hybrid system. In a preferred embodiment, the enhancer composition contains 5-aminotetrazole, strontium nitrate, boron nitride, mica or clay and aluminum.

L'invention concerne une composition qui favorise l'amorçage et chauffe le gaz, s'utilisant pour produire du gaz pour gonfler les airbags destinés aux occupants d'un véhicule. Cette composition contient un combustible non azide, un comburant et un métal. Cette composition favorisant l'amorçage permet d'obtenir un amorçage fiable et constant d'une composition propulsive principale, afin de produire un volume suffisant de gaz pour gonfler un airbag contigu en l'espace de dix à quatre-vingts secondes ou de chauffer avec succès le gaz stocké dans un système hybride. Dans un mode de réalisation préféré, la composition favorisant l'amorçage contient des 5-aminotétrazoles, du nitrate de strontium, du nitrure de bore, du mica ou de l'argile et de l'aluminium.

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