Patent · US Expired

Method for preparation of porous propellants

US5230841A · kind A · utility

5Cited by

7References

7Claims

0Family size

Assignee

Dynamit Nobel GmbH · DE

Inventors

Klaus Redecker · Nuremberg, DE
Horst Penner · Fürth, DE

Key dates

Filing date	Aug 2, 1978
Grant date	Jul 27, 1993
Priority date	—
Expiry date	Aug 2, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC06B21/0091
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A method for producing porous propellant charges from a mixture containing a propellant and a filler is described wherein a propellant having a decomposition temperature above 200.degree. C. is employed with a thermally removable filler to provide the charge forming mixture. The mixture is molded into a charge body and is subsequently heated to remove the filler at a temperature that is at least 50.degree. C. below the decomposition temperature of the propellant. Due to the heating at the elevated temperature the filler is wholly or in part removed to form a cavity within the charge body.

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