Patent ID: 7905955
Filing Date: 2011-03-15
Classification: C09B,C09D,D06P,D21H,Y10T

Abstract:
1. An aqueous pigment preparation comprising (A) at least one organic pigment, inorganic pigment or a combination thereof, (B) a dispersant of formula (I) or (II) or mixtures of dispersants of formulae (I) and (II), wherein the indices a, b and c indicate the molar fraction of the respective monomers a=0.01-0.8 b=0.001-0.8 c=0.001-0.8 provided the sum total of a+b+c is 1, and A is C B is a C R is hydrogen or methyl, m is from 1 to 500; n is from 1 to 500; provided the sum total of m+n is from 2 to 1000; X Z Z Z R X W R Y is an aliphatic hydrocarbyl radical having 1 to 30 carbon atoms, optionally linear, branched or cyclic, and optionally contains hetero atoms O, N S or a combination thereof and optionally is unsaturated, W (C) optionally wetters, (D) optionally further surfactants, dispersants or a combination thereof, (E) optionally one or more organic solvents, one or more hydrotropic substances or a combination thereof, (F) optionally further additive materials customary for preparing aqueous pigment dispersions, and (G) water.