Gas generant compositions containing salts of 5-nitrobarbituric acid, salts of nitroorotic acid, or 5-nitrouracil
US5015309A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1989 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | May 4, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B25/34
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Automotive airbag gas generant formulation providing alternative to commercially used formulations containing sodium azide. The composition comprises from about 25% to about 75% by weight of a heterocyclic compound having the following structure: ##STR1## wherein R is selected from hydrogen, PA1 --CO.sub.2 X, and PA1 --OX and X is a cation providing an anhydrous salt. The other principal ingredient of the composition is from about 25% to 75% by weight of an anhydrous oxidizing salt having a cation selected from metals of Group I-A of the Periodic Table (except sodium), calcium, strontium, or barium, and an anion which is essentially free of carbon, hydrogen, or halogens. From about 0% to 2% of a binder can be added, if necessary. An automotive airbag inflator containing the composition and a method for generating gas comprising the step of igniting the composition stated above are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.