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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Main Authors | , , , , |
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Format | Patent |
Language | French |
Published |
25.12.2015
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Abstract | 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. |
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AbstractList | 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. |
Author | DESGARDIN NANCY PAULIN JEAN LOUIS RAGON PHILIPPE FRANSON CLAIRE J WERSCHINE MATHIEU W |
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Title | PRODUIT PYROTECHNIQUE COMPOSITE A LIANT RETICULE ET SON PROCEDE DE PREPARATION |
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