Elastomeric, thermoplastic binder containing gas generating pyrotechnic composition for producing a clean non-tatic gas.

摘要

The present invention relates to the field of gas-generating pyrotechnic compositions intended for motor vehicle safety. The compositions according to the invention include: - an oxygen-containing thermoplastic binder and especially an aliphatic block copolymer of formula: <IMAGE> in which: PA is a polyamide block, PE is a polyether block, n is a number between 2 and 10, - an energetic plasticiser which is a polyglycidyl azide, - an oxidising filler consisting, in the case of at least 85 % of its weight, of ammonium nitrate. The compositions according to the invention burn without solid residues and can be employed in gas generators without a filtration chamber.