PRODUIT PYROTECHNIQUE COMPOSITE A LIANT RETICULE ET SON PROCEDE DE PREPARATION

A composite pyrotechnic product, especially a propellant powder for barrel weapons, containing organic energetic charges in a crosslinked binder, has a composition, expressed as weight percentages, that contains from 78% to 90% of organic energetic charges, and from 10% to 22% of an energetic crossl...

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Bibliographic Details
Main Authors PAULIN JEAN LOUIS, FRANSON CLAIRE J, WERSCHINE MATHIEU W, DESGARDIN NANCY, RAGON PHILIPPE
Format Patent
LanguageFrench
Published 25.12.2015
Subjects
CHEMISTRY
EXPLOSIVES
EXPLOSIVES OR THERMIC COMPOSITIONS
MANUFACTURE THEREOF
MATCHES
METALLURGY
USE OF SINGLE SUBSTANCES AS EXPLOSIVES
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Summary:A composite pyrotechnic product, especially a propellant powder for barrel weapons, containing organic energetic charges in a crosslinked binder, has a composition, expressed as weight percentages, that contains from 78% to 90% of organic energetic charges, and from 10% to 22% of an energetic crosslinked binder obtained by crosslinking, via 8% to 12% of its azide functions, a polyglycidyl azide with a number-average molecular weight of between 700 and 3000 g/mol, with a crosslinking agent containing at least two propargyl functions in its chemical formula, in the presence of a polymeric gum, chosen from polyurethane-polyester gums, polyurethane-polyether gums and mixtures thereof, the number-average molecular weight of which is greater than 20000 g/mol and the Mooney viscosity of which is between 20 and 70 ML (5+4) at 100° C.; the at least one polymeric gum representing from 1% to 5% by weight of the composition of the pyrotechnic product.
Bibliography:Application Number: FR20130002708