Composite solid propellant containing FeOOH as burning rate modifier
US4424085A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1981 |
| Grant date | Jan 3, 1984 |
| Priority date | — |
| Expiry date | Sep 9, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B45/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The burning rate of a composite solid propellant comprising ammonium perchlorate and a fuel binder such as polysulfide, polyurethane or polybutadiene can remarkably be increased by the addition of a small amount of FeOOH. Considering the mechanical properties of the propellant, the maximum amount of FeOOH is preferably limited to 7 Wt % of the toatal of the fuel binder and ammonium perchlorate. It is possible to jointly use FeOOH and Fe.sub.2 O.sub.3 on condition that the weight ratio of FeOOH to Fe.sub.2 O.sub.3 is at least 10:90 and that the total weight of FeOOH and Fe.sub.2 O.sub.3 is in the range from 0.9 to 7% of the total weight of the fuel binder and ammonium perchlorate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.