EP 0404651 B1 19940518 - Solid gas-generating composition and its application in gas generators for inflatable safety bags in motor vehicles.
Title (en)
Solid gas-generating composition and its application in gas generators for inflatable safety bags in motor vehicles.
Title (de)
Feste gaserzeugende Zusammensetzung und deren Anwendung in Gasgeneratoren für Airbags in Kraftfahrzeugen.
Title (fr)
Composition solide génératrice de gaz et son utilisation dans les générateurs de gaz pour coussins gonflables destinés à protéger les passagers d'un véhicule automobile.
Publication
Application
Priority
FR 8908224 A 19890621
Abstract (en)
[origin: US4976795A] The present invention relates to new pyrotechnic compositions generating nontoxic cold gases. The compositions according to the invention contain between 55% and 71% by weight of alkali or alkaline-earth metal azide, between 25% and 40% by weight of molybdenum sulphide and between 3% and 6% by weight of a binder consisting of the product of reaction of a polyglycidyl azide containing hydroxyl ends with at least one polyisocyanate. A preferred composition comprises 35% by weight of molybdenum sulphide, 60% by weight of sodium azide and 5% by weight of a binder obtained by reaction of a polyglycidyl azide containing OH hydroxyl ends of mass 2000 with the hexamethylene diisocyanate biuret trimer. The compositions according to the invention are much less sensitive to external attacks, and especially to moisture, than the conventional compositions based on azide and molybdenum sulphide. They are particularly suitable for the generators of nontosic cold gases intended for inflating the safety cushions of motor vehicles.
IPC 1-7
IPC 8 full level
B60R 21/26 (2006.01); C01B 21/02 (2006.01); C06B 35/00 (2006.01); C06D 5/00 (2006.01); C06D 5/06 (2006.01)
CPC (source: EP US)
C06B 35/00 (2013.01 - EP US); C06D 5/06 (2013.01 - EP US)
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
EP 0404651 A1 19901227; EP 0404651 B1 19940518; DE 69008934 D1 19940623; DE 69008934 T2 19940922; FR 2648809 A1 19901228; FR 2648809 B1 19910913; JP H03141185 A 19910617; JP H0725633 B2 19950322; US 4976795 A 19901211
DOCDB simple family (application)
EP 90401697 A 19900618; DE 69008934 T 19900618; FR 8908224 A 19890621; JP 16146890 A 19900621; US 53317890 A 19900604