Autoignition composition for an airbag inflator
US5831207A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1996 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Oct 30, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06C9/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.