Composition generating an IR-opaque smoke

US5389308A · kind A · utility

Assignee

• Buck Werke GmbH & Co. · DE

Inventors

• Horst Busel · Berchtesgaden, DE
• Joseph Mark Schneider · Bischofswiesen, DE

Key dates

• Filing date: Aug 20, 1993
• Grant date: Feb 14, 1995
• Expiry date: Aug 20, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C06D3/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A composition generating an IR-opaque smoke in the form of a compact which has a density in the range from 0.9 to 1.5 g/cm.sup.3 is described, comprising from 10 to 25 percent by weight of magnesium powder, from 5 to 35 percent by weight of a fluorinated organic poller, from 5 to 15 percent by weight of chloroparaffin and from 35 to 65 percent by weight of an aromatic compound of the formula I ##STR1## wherein A and B are independently selected from ##STR2## R.sup.1 and R.sup.2 are independently selected from OH, X or alkyl having one to four carbon atoms, m and n is an integer from 0 to 2, and X is halogen, or an aromatic compound of formula II ##STR3## wherein R.sup.1 and R.sup.2 X m and n are defined as above and D and E are independently selected from ##STR4## or phtalic anhydride, 2-benzoyl pyridine, fluorene, dibenzosuberenone or diphenylenesulphide or the derivatives thereof substituted by R.sup.1.sub.m and/or R.sup.2 .sub.m.