GAS-GENERATING, AZIDE-FREE MIXTURE

摘要

A mixture of substances for the pyrotechnic generation of propellants for motor vehicle passenger protection devices consists of: (a) 10 to 50 wt % of a fuel selected from the acid dihydrazide group and (b) 50 to 90 wt % of an inorganic oxidiser selected from the group of nitrates and peroxides or their mixtures, in relation to the total weight of the mixture of fuel and oxidiser, and (c) possibly up to 30 wt % in relation to the total weight of the mixture, of a metal oxide and (d) possibly further additives or auxiliaries. The mixture of the invention is azide-free, consists of non-toxic components, is highly stable thermally and chemically, has an adequate rate of combustion and good ignitibility, where the combustion temperatures are markedly lower than those of prior art gas-generating mixtures, the quantity of gaseously generated fine dust particles is smaller, the combustion residues are easily filtrable, the propellant gas composition is essentially benign, the concentrations of noxious gases like CO and NOx in the propellant are as small as possible and the raw materials are particularly cheap.