Autoignition compositions for inflator gas generators
US6007647A · kind A · utility
5Cited by
15References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1997 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Aug 5, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B31/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An autoignition composition for the gas generator of a vehicle occupant restraint system that is thermally stable at temperatures up to 110.degree. C., autoignites between 150.degree. C. and 175.degree. C., produces minimal toxic gases upon combustion, provides for a reduced gas inflator size, and can be safely produced using simple processing methods. By mixing an alkali metal nitrite with a nitrogen-based fuel, the resulting gas generants autoignite at or below 175.degree. C. The addition of an alkaline earth metal nitrite or nitrate provides the stability needed to additionally function as a booster and/or a gas generant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.