FUNCTIONALISED POLYOXYALKYLENES AND THEIR USE AS DISPERSANTS FOR CARBON BLACK

摘要

The invention concerns an agent of dispersion for carbon black comprising at least a compound of following formula: X- [(OCH2-CH2)n(OCHR-CHR')m]Y in which: [(OCH2-CH2)n(OCHR-CHR')m] represents a chain formation of ethylene oxide units and alkylene oxide units, either alternating, or blocked, or statistical; m and n are each an averaged number which varies independently of each other between 0 and 1000, provided that m and n are not both nil; X represents H, a C1-7 alkyl group, linear or branched, or Y-CHR'-CHR; R; R' each represents, independently of each other, H, a C1-7 alkyl group, linear or branched; and Y is selected from any of the following groups a), b), c), and d): a) Y = N(R2)(R3) or N(R2)(R4ZM) or N(R4ZM)(R5Z'M') or NH(R4ZM) in which Z and Z' each represents, independently of each other, -SO4<->, -SO3<->, -PO3<2->, OPO3<2->, -COO<->, Z and Z' being covalently bound to groups R4 and R5; M and M', each represents, independently of each other, H<+> or a mineral or organic cation; R2, R3 each represents, independently of each other, H or a C1-7 alkyl group; and R4, R5 each represents, independently of each other, a C1-7 alkylene group; b) Y = N<+>(R2)(O<->)(R3) in which R2, R3, each represents, independently of each other, a C1-7 alkyl group; c) Y = N<+>(R2)(R3)(R4Z) or N<+>(R2)(O<->)(R4Z'M') or N<+>(R4ZM)(O<->)(R5Z'M') in which R2 and R3 each represents, independently of each other, a C1-7 alkyl group; R4 and R5 each represents, independently of each other, a C1-7 alkylene group; Z and Z' each represents, independently of each other, -SO4<->, -SO3<->, PO3<2->, OPO3<2->, -COO<->, Z and Z' being covalently bound to groups R4 and R5; and M and M' each represents, independently of each other, H<+> or a mineral or organic cation; d) Y = OZM in which Z = -SO3<->, -PO3<2->, -COR1-COO<-> with R1 = an alkyl or divalent aromatic group; and M represents H<+> or a mineral or organic cation.