Patent ID: 6312514
Filing Date: 2001-11-06
Classification: C09B,C09D

Abstract:
A method of preparing a pigment concentrate, said method comprising:(a) providing at least one diol alkoxylate selected from the general formulae (I), (II) and (III); ##STR4##(b) combining the at least one diol alkoxylate with a pigment and a liquid carrier medium; and(c) mixing the at least one diol alkoxylate, the pigment and the liquid carrier medium to form a pigment concentrate;wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.7 and R.sup.8 independently represents a hydrogen atom or an alkyl group having from 1 to about 36 carbon atoms, with the proviso that both R.sup.1 and R.sup.2 are not simultaneously hydrogen atoms and the total number of carbon atoms in R.sup.1 and R.sup.2 is from about 6 to about 38, and with the proviso that both R.sup.3 and R.sup.5 are not simultaneously hydrogen atoms and the total number of carbon atoms in R.sup.3 and R.sup.5 is from about 6 to about 38, wherein R.sup.4 represents a linear or branched alkylene group having from about 2 to about 12 carbon atoms or (--CH.sub.2 --CHR.sup.6 --O).sub.z, wherein R.sup.6 represents a hydrogen atom or a methyl group, wherein each of x and y independently represent a number of from about 1 to about 200, z represents a number of from about 1 to about 20, n represents a number of from about 2 to about 12, and wherein the sum of x+y is a number of from about 5 to about 200.