Title (en)

Semicontinuous casting process for solid propellant pastes using two components

Title (de)

Semikontinuierliches Giessverfahren für feste Treibstoffpasten durch Verwendung von zwei Komponenten

Title (fr)

Procédé semi-continu de coulée de pâte de propergol solide, ledit procédé mettant en oeuvre deux composants

Publication

EP 1333016 A3 20101013 (FR)

Application

EP 03290124 A 20030117

Priority

FR 0201214 A 20020201

Abstract (en)

[origin: EP1333016A2] Semi-continuous pouring of a propergol paste made from two groups of components uses a first group, comprising 80-99% of the finished solid propergol product containing a liquid pre-polymer, a solid powder charge and a proportion of additives, and a second group, comprising 1-20% of the finished product, containing a reticulating agent and the rest of the additives. Semi-continuous pouring of a propergol paste made from two groups of components uses a first group, comprising 80-99% of the finished solid propergol product containing a liquid pre-polymer, a solid powder charge and a proportion of additives, and a second group, comprising 1-20% of the finished product, containing a reticulating agent and the rest of the additives. The components are mixed in two stages: a low pressure stage in which precisely-dosed ingredients are mixed, and a second high-pressure stage in which the mixture is homogenized. The two groups of components are stored in separate reservoirs (10, 12) and delivered by pumps (11, 13) to a mixing chamber (14) before being passed to a mold.

IPC 8 full level

C06B 21/00 (2006.01)

CPC (source: EP US)

C06B 21/0058 (2013.01 - EP US); C06B 45/10 (2013.01 - US)

Citation (search report)

• [XY] US 4632715 A 19861230 - CURTIS DONALD D [US]
• [XY] US 5085717 A 19920204 - BERARD JEAN-DANIEL M [FR], et al
• [XY] GB 1605257 A 19860924 - AEROJET GENERAL CO
• [Y] US 5114630 A 19920519 - NEWMAN KIRK E [US], et al
• [Y] WO 9222377 A1 19921223 - HUEBERS VERFAHRENSTECH [DE]
• [Y] WO 0172861 A2 20011004 - TEN CATE ENBI INTERNAT [NL]
• [Y] DE 4115201 A1 19920109 - REINHARDT TECHNIK GMBH & CO [DE]
• [Y] US 4191480 A 19800304 - HIORTH HANS [NO]
• [Y] DE 4313171 A1 19941027 - MICAFIL VAKUUMTECHNIK AG [CH]
• [XY] EP 0553476 A1 19930804 - HERCULES INC [US]
• [A] US 5739252 A 19980414 - KIRCHMEYER STEPHAN [DE], et al

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

Designated extension state (EPC)

AL LT LV MK RO

DOCDB simple family (publication)

EP 1333016 A2 20030806; EP 1333016 A3 20101013; FR 2835520 A1 20030808; FR 2835520 B1 20041119; US 2005183804 A1 20050825; US 6936120 B1 20050830

DOCDB simple family (application)

EP 03290124 A 20030117; FR 0201214 A 20020201; US 34520703 A 20030116