Global Patent Index - EP 0611141 A1

EP 0611141 A1 19940817 - Castable double base propellants with compounds containing group IIA metal ions as ballistic modifers.

Title (en)

Castable double base propellants with compounds containing group IIA metal ions as ballistic modifers.

Title (de)

Giessbare zweibasige Treibstoffe mit Metallionen der Gruppe IIA enthaltenden Verbindungen als Ballistikmodifikatoren.

Title (fr)

Propergols à double base coulable contenant des composés comprenant des ions métalliques du groupe IIA et agissant comme modificateurs balistiques.

Publication

EP 0611141 A1 19940817 (EN)

Application

EP 94300922 A 19940208

Priority

US 1638193 A 19930208

Abstract (en)

Propellant formulations are provided which include non-toxic burn rate modifiers. In order to produce a usable propellant formulation, it is necessary to control the burn rate of the propellant. Failure to adequately control the propellant burn rate often results in unacceptable performance of the propellant. It has been found that Group IIA metal salts, such as calcium carbonate and strontium carbonate, are capable of modifying the burn rate of propellants without resorting to lead as a burn rate additive. Accordingly, the use of from about 0.5% to about 5.0% Group IIA metal salt is taught as effective burn rate modifiers in propellants, in order provide non-toxic means for modifying the propellant burn rate.

IPC 1-7

C06B 23/00

IPC 8 full level

C06B 23/00 (2006.01); F02K 9/10 (2006.01); F02K 9/26 (2006.01)

CPC (source: EP)

C06B 23/007 (2013.01)

Citation (search report)

  • [XY] US 3009796 A 19611121 - PRECKEL RALPH F
  • [Y] US 3873386 A 19750325 - ELRICK DONALD E
  • [X] US 3841929 A 19741015 - CRAIG J
  • [A] US 4216039 A 19800805 - PIERCE EVERETTE M [US]
  • [XY] CHEMICAL ABSTRACTS, vol. 083, no. 10, 8 September 1975, Columbus, Ohio, US; abstract no. 82295a, J. KANEKO ET AL.: "Solid propellant chemical composition containing smokeless explosive material." page 201; & JP H07504721 A 19950525 & CHEMICAL PATENTS INDEX, DOCUMENTATION ABSTRACTS JOURNAL Derwent World Patents Index; AN 75-20239W
  • [A] CHEMICAL ABSTRACTS, vol. 106, no. 20, 18 May 1987, Columbus, Ohio, US; abstract no. 158905r, Z. LAZIC ET AL.: "Multifactorial analysis of technological conditions for the manufacture of double-base rocket fuels with high combustion rates." page 150; & NAUCNO-TEH. PREGL., vol. 36, no. 8, 1986, pages 28 - 34
  • [X] CHEMICAL ABSTRACTS, vol. 069, no. 18, 28 October 1968, Columbus, Ohio, US; abstract no. 68698p, S. DELI ET AL.: "Methane-proof and non-methane-proof industrial explosive of high brisance and increased storability." page 6426; & HU 154740 A

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0611141 A1 19940817; JP H06249069 A 19940906

DOCDB simple family (application)

EP 94300922 A 19940208; JP 1469494 A 19940208