Autoignition composition for an airbag inflator

Details Autoignition composition for an airbag inflator Autoignition composition for an airbag inflator

1996-10-30

1998-11-03

Miller, Edward A.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

Solid particles dispersed in solid solution or matrix

149 77, 102205, C06B 4510

Patent

active

058312072

ABSTRACT:
An autoigniting composition comprising lead thiocyanate Pb(SCN).sub.2 as the fuel, a chlorate as the oxidizer and optionally, a binder and/or a flow agent/thickener are disclosed for use in a vehicle occupant restraint system. The autoignition composition undergoes rapid autoignition at temperatures from approximately 190.degree. to 220.degree. C. thereby allowing the use of aluminum for the gas generator housing. The autoignition compositions of the present invention are safely manufactured by wet blending and may be installed via automation to the interior of the inflator housing. When aluminum housings are used, a barrier material is used to prevent corrosion of the aluminum by the autoignition composition. Optionally the dried autoignition material is coated with a protective substance to prevent water absorption and mechanic abrasion.

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