Patent · US Expired

Method of making pourable plastic-bound explosive charges or rocket propellant

US6558488B2 · kind B2 · utility

3Cited by

12References

12Claims

0Family size

Assignee

Rheinmetall W & M GmbH · DE

Inventors

Paul Wanninger · Schrobenhausen, DE
Rainer Böhm · Rietz-Neuendorf, DE
Horst Pinkernelle · Unterlüß, DE

Key dates

Filing date	Feb 20, 2002
Grant date	May 6, 2003
Priority date	—
Expiry date	Feb 20, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC06B21/0025
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method of making pourable, plastic-bound explosive charges or rocket propellants, to which a metal powder having essentially spherically shaped grains is added.To avoid an increase in the viscosity of the explosive charge or the rocket propellant through polar groups attached to the surface of the metal powder, it is suggested according to the invention that the polar groups of the metal powder be saturated with SiR3 groups (Si=silane; R=organic residue) before the metal powder is added to the explosive mixture. As a result, the polar groups can no longer react with the isocyanates of the explosive charge or the rocket propellant and the specific surface of the respective metal powder, as well as the viscosity of the charges, is reduced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.