Global Patent Index - EP 0446085 B1

EP 0446085 B1 19950712 - Process for fabricating high temperature resistant fragmentable propellant charges, the charges thus obtained and their constituent powders.

Title (en)

Process for fabricating high temperature resistant fragmentable propellant charges, the charges thus obtained and their constituent powders.

Title (de)

Verfahren zur Herstellung temperaturbeständiger zerfallsfähiger Treibladungen, entsprechende Treibladungspulver sowie so hergestellte Treibladungen.

Title (fr)

Procédé de fabrication de chargements propulsifs fragmentables résistant à la température, poudres constitutives et chargements ainsi obtenus.

Publication

EP 0446085 B1 19950712 (FR)

Application

EP 91400319 A 19910211

Priority

FR 9002092 A 19900221

Abstract (en)

[origin: EP0446085A1] Propellent charges for small and medium calibre arms. The invention relates to a process for the manufacture of fragmentable propellent charges, which consists in a first stage in coating grains of powder with a mixture of dinitropolystyrene and of a compound of the polyvinyl nitrate and/or polyvinyl acetate type, and in a second stage in compressing between 100 DEG C and 140 DEG C the grains of powder thus obtained. The invention also relates to the fragmentable charges obtained by the process and to the powders in the form of coated grains obtained at the end of the first stage of the process. The fragmentable charges according to the invention exhibit a temperature behaviour which is superior to conventional fragmentable charges and are suitable for caseless ammunition intended for arms with a high rate of fire.

IPC 1-7

C06B 21/00; C06B 45/24; C06B 45/02

IPC 8 full level

C06B 21/00 (2006.01); C06B 45/02 (2006.01); C06B 45/18 (2006.01)

CPC (source: EP)

C06B 21/0041 (2013.01); C06B 21/0083 (2013.01); C06B 45/02 (2013.01); C06B 45/18 (2013.01)

Designated contracting state (EPC)

BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0446085 A1 19910911; EP 0446085 B1 19950712; DE 69111097 D1 19950817; DE 69111097 T2 19960404; FR 2658505 A1 19910823; FR 2658505 B1 19920430

DOCDB simple family (application)

EP 91400319 A 19910211; DE 69111097 T 19910211; FR 9002092 A 19900221