Explosive compositions comprising novel emulsifiers for...

C - Chemistry – Metallurgy – 06 – B

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C06B 47/14 (2006.01)

Patent

CA 2414781

The invention relates to dispersant compositions, comprising a Mannich adduct as emulsifier in a water in oil emulsion, from a) a hydroxyaromatic compound with hydrocarbon substituent(s) of formula (I) (R1)nAr(OH)x, where R1 = a hydrocarbon, chosen from a straight- or branched-chain C6-C400 alkyl, C6-C400 alkenyl, C6-C400 alkenylaryl, or C6-C400 alkylaryl group; Ar = a mono- or multi-nuclear, optionally substituted aromatic ring; n = 1, 2 or 3; and x = 1 to 5; b) formaldehyde, an oligomer or polymer thereof; and c) a nitrogen compound, chosen from an amine and ammonia, comprising at least one primary or secondary amino function.

L'invention concerne des compositions d'explosifs comprenant, dans une émulsion eau dans huile, un produit d'addition de Mannich comme émulsifiant, qui contient a) un composé hydroxyaromatique, à substitution hydrocarbyle, de formule générale (I) (R?1¿)¿n?Ar(OH)¿x?, dans laquelle R?1¿ représente un groupe hydrocarbyle sélectionné parmi les groupes linéaires ou ramifiés suivants : alkyle C¿6?-C¿400?, alcényle C¿6?-C¿400?, alcénylaryle C¿6?-C¿400? ou alkylaryle C¿6?-C¿400? ; Ar représente un cycle aromatique à un ou plusieurs noyaux, éventuellement substitué ; n est un nombre entier valant 1, 2 ou 3 ; et x est un nombre entier compris entre 1 et 5 ; b) du formaldéhyde, un oligomère ou un polymère de formaldéhyde ; et c) un composé azote sélectionné parmi l'ammoniac et une amine présentant au moins une fonction amino primaire ou secondaire.

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