Ignition composition for inflator gas generators

An autoigniting composition for the gas generator of a vehicle occupant restraint system comprising a mixture of about 60% by weight of potassium chlorate, about 20% by weight of 5-aminotetrazole, and about 20% by weight of 2,4-dinitrophenylhydrazone.

An autoigniting composition for the gas generator of a vehicle occupant restraint system comprising a mixture of about 65% by weight of potassium chlorate, about 16.5% by weight of 5-aminotetrazole, about 16.5% by weight of 2,4-dinitrophenylhydrazone, and about 2% to 4% by weight of a metal powder selected from the group consisting of titanium, zirconium, boron and aluminum.

An autoignition composition for the gas generator of a vehicle occupant restraint system comprising a mixture of from about 16% to 40% by weight 5-aminotetrazole, from about 11% to 40% by weight, 2,4-dinitrophenylhydrazone, and from about 40% to 67% by weight of an oxidizer selected from the group consisting of alkali metal or alkaline earth metal chlorates.

An autoignition composition for the gas generator of a vehicle occupant restraint system comprising a mixture of from about 16% to 40% by weight 5-aminotetrazole, from about 11% to 40% by weight of an active material selected from the group consisting of the aldehyde or ketone hydrazone derivatives of 2,4-dinitrophenylhydrazone and from about 40% to 67% by weight of an oxidizer selected from the group consisting of alkali metal or alkaline earth metal chlorates.