Ammonium nitrate propellants
US5583315A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1994 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Jan 19, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B45/105
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A propellant with a long shelf life that is smoke-free when combusted. The propellant may have the following composition when the propellant includes a reinforcing agent. ______________________________________ Approximate Percentage Material Range by Weight ______________________________________ Ammonium nitrate 40-85 Binder (with curvative) 4-40 Energetic plasticizer 0-40 Reinforcing agent 0.1-8 ______________________________________ When the reinforcing agent is included in the propellant, a desiccant in the range of 0.02-6% may or may not be included in the propellant. The binder is selected from the group consisting of a thermoplastic material such as Finaprene.RTM. or Kraton.RTM. (e.g. thermoplastic elastomers) or a cure-hardening material or a combination thereof. Examples of the energetic plasticizer are trimethylolethane trinitrate, triethyleneglycol dinitrate, and butanetriol trinitrate. The desiccant may be a powdered molecular sieve which removes water from the propellant and increases the mechanical strength of the propellant. The reinforcing agent may be a nitrogen containing compound such as dicyandiamide or oxamide, increasing the mechanical strength and elasticity o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.