Extrudable gas generant for hybrid air bag inflation system
US5538568A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1995 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | May 4, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06D5/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The solvent-free gas generant composition of this invention, comprising an oxidizer and a thermosettable resin, cures in about an hour or less at room temperature and within 5 minutes at 135.degree. F. Void-free and crack-free gas generant grains are formed and cured in an extrusion process in which the temperature may be from about room temperature to about 200.degree. F. The thermosettable resin is at least one of the group consisting of an acrylate-terminated polybutadiene, a hydroxy-terminated polybutadiene/diisocyanate reaction product, an ester of a polybutadiene polycarboxylic acid and an epoxy modified polybutadiene and/or a hydroxyl-terminated polybutadiene, and a styrene/polyester copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.