Process for continuous manufacture of pyrotechnic charges containing a silicone binder and compositions capable of being used by this process
US5610444A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1995 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Dec 21, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06D5/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for continuous manufacture of pyrotechnic charges containing a silicone binder and to the compositions capable of being used by this process. The following are introduced continuously into an extruder (1): PA1 a mixture A of a crosslinkable silicone resin with a crosslinkable silicone gum, PA1 a mixture B of oxidizing fillers, PA1 a crosslinking agent C which is common to the resin and to the gum. The dough obtained is extruded in the form of fuse strings (3) which are cut into strands (5) which are returned into a second extruder (7) to be extruded and cut into the form of blocks (11) in which the binder is crosslinked in an oven (13). The charges thus obtained find their preferred application in gas pyrotechnic generators for motor vehicle safety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.