Dispersant compositions comprising novel emulsifiers for water in oil emulsions
AssigneeBASF SE
InventorsArend Jouke Kingma, Arno Lange, Hans Peter Rath
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Abstract
This 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-C400alkyl, C6-C400alkenyl, C6-C400alkenylaryl, or C6-C400alkylaryl 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.
Claims15
An explosive composition comprising, in a water-in-oil emulsion as emulsifier, a Mannich adduct composed of
- a) a hydrocarbyl-substituted, hydroxyaromatic compound of the formula I
- (R1)nAr(OH)x (I)
- in which
- R1 is a hydrocarbyl group selected from a straight-chain or branched C6-C400-alkyl, C6-C400-alkenyl, C6-C400-alkenyl-aryl or C6-C400-alkyl-aryl radical;
- Ar is a mononuclear or polynuclear, optionally substituted aromatic ring;
- n is an integral value of 1, 2 or 3;
- and
- x is an integral value of 1 to 5;
- b) formaldehyde, an oligomer or polymer thereof;
- and
- c) a nitrogen compound of the formula II
- HNR2R3 (II)
- in which
- R2 and R3 are, independently of one another, H, a C1-C18-alkyl, C2-C18-alkenyl, C4-C18-cycloalkyl, C1-C18-alkyl-aryl, C2-C18-alkenyl-aryl, hydroxy-C1-C18-alkyl, poly(oxyalkyl),or polyalkyleneimine radical, or together with the nitrogen atom to which they are bonded are a heterocyclic ring.
A composition as claimed in any of the preceding claims, wherein R1 is derived from a poly-C2-C6-alkene.
A composition as claimed in any of the preceding claims, wherein the Mannich adduct is obtained by reacting one mole equivalent of hydroxyaromatic compound of the formula I with 0.1 to 10 mole equivalents of formaldehyde, an oligomer or polymer thereof and 0.1 to 10 mole equivalents of the nitrogen compound.
A composition as claimed in any of the preceding claims, wherein the Mannich adduct is obtained by reacting a poly(alkenyl)phenol with formaldehyde and a mono- or di(hydroxyalkyl)amine.
A composition as claimed in any of the preceding claims, wherein any free OH or NH groups present in the Mannich adduct are partially or completely alkoxylated.
Dependencies are inferred from the claim text.