DISPERSION OF PIGMENTS

摘要

Aqueous pigment dispersions include alcohol alkoxylates of the formula (I): [CH3.(CH2)n][CH3.(CH2)m].CH.[(CH2)p.O.(AO)q.H] where n and m are each independently from 1 to 13; and p is 1 or 2; such that n+m+p is from 5 to 19 , particularly from 7 to 17; AO is an alkylene oxide residue having from 2 to 4 carbon atoms and is particularly an ethylene oxide residue, a propylene oxid e residue or a mixture of ethylene oxide and propylene oxide residues; and q i s from 5 to 40; as dispersants. Desirably the total dispersant used includes a t least 40 % by weight of compound of the formula (I). The pigment dispersions can include a wide variety of inorganic, organic pigments or carbon black an d can be used in paints.