Method for preparing anhydrous tetrazole gas generant compositions
US5472647A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1994 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Jan 7, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B43/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A present method involves preparing an anhydrous gas generant by forming a quantity of granulated anhydrous gas generating material into a shaped charge wherein the gas generating material is an oxidizer and at least one fuel selected from the group consisting of tetrazoles. More particularly, a preferred method involves preparing an anhydrous gas generating composition by preparing a slurry of gas generating material which comprises oxidizer particles larger than 1 micron and fuel particles larger than 1 micron wherein the oxidizer is selected from the group consisting of a metal peroxide, an inorganic nitrate, an inorganic nitrite, a metal oxide, a metal hydroxide, an inorganic chlorate, an inorganic perchlorate, or a mixture thereof, and the fuel is selected from the group consisting of tetrazoles; granulating the slurry to obtain granules of a selected weight average particle size; drying the granules to an anhydrous condition; and pelletizing the anhydrous granules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.