Combustion inhibitor coating for gas generants
US8221565B2 · kind B2 · utility
1Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2009 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Jun 11, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/2644
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods of making and resultant compositions thereof, which include a gas generant having a coating including an inorganic combustion inhibitor. Such coated gas generants are useful in pyrotechnic compositions and ignition materials, and may be employed, for example, in inflatable restraint systems. The ratio of coated and uncoated gas generant bodies within an airbag inflator may be tailored to provide S-curve inflation performance. Spray application of aqueous mixture including the combustion inhibitor onto the gas generant body provides a rapid way to achieve a thin but robust coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.