| 摘要 |
Aqueous pigment dispersions include alcohol alkoxylates of the formula (I) : [CH 3.(CH 2) n ][CH 3.(CH 2) m ].CH.[(CH 2) 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 oxide residue or a mixture of ethylene oxide and propylene oxide residues; and q is from 5 to 40; as dispersants. Desirably the total dispersant used includes at 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 and can be used in paints.
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