Semi-continuous two-component process for producing a composite explosive charge comprising a polyurethane matrix
US6916390B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2003 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Jan 7, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B45/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In the military field of explosive munitions, a semi-continuous process produces a composite explosive charge composing a charged solid polyurethane matrix, the charge of which is pulverulent and comprise at least one nitro-organic explosive, by introduction into a mould of a pastry explosive composition and then thermal crosslinking of this composition. The composition is obtained by mixing constituents essentially comprising a polyol prepolymer, a plasticizer, a polyisocyanate monomer and a pulverulent solid charge comprising at least one nitro-organic explosive. This simple and economic process makes it possible to dispense, without disadvantage, with the pot life/curing time of the composition compromise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.