Nitrate ester plasticized energetic compositions, method of making and rocket motor assemblies containing the same
US6632378B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2001 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Sep 23, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B45/105
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A nitrate ester plasticized energetic composition in which the binder is made of, prior to curing, lower alkylene glycol prepolymer blocks end-capped with ethylene glycol monomers and/or oligomers. The end-capped prepolymer blocks are preferably difunctional or trifunctional. The lower alkylene glycol are preferably propylene glycol, butylene glycol, and/or copolymers thereof. The difunctional end-capped alkylene glycol prepolymer blocks are cured with a diisocyanate or polyisocyanate. In the case of a trifunctional (or higher functional) end-capped alkylene glycol prepolymer block, preferably a diisocyanate is used to effect crosslinking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.