Patent ID: 8221539
Filing Date: 2012-07-17
Classification: C08F,C08K,C09B,C09D

Abstract:
1. A pigment formulation comprising (i) at least one organic pigment, at least one inorganic pigment or a combination thereof, (ii) a dispersant of formula (I) or (II), or mixtures of dispersants of formulae (I) and (II), wherein a=0.001−0.9 b=0.001−0.9 c=0.001−0.9 d=0.001−0.9 subject to the proviso that the sum of a+b+c+d equals 1; A is a C B is a C R is hydrogen or methyl, m is from 1 to 500; n is from 1 to 500, subject to the proviso that the sum of m+n equals 2 to 1000; D is a C o is from 2 to 500; XA is an aromatic or araliphatic radical having 3 to 30 carbon atoms optionally containing heteroatoms selected from the group consisting of N, O and S, ZA is H or (C ZB is H or (C ZC is H or (C R XB is an aromatic or araliphatic radical having 3 to 30 carbon atoms optionally containing heteroatoms selected from the group consisting of N, O and S, WA is oxygen or an NH group; R Y is an aliphatic hydrocarbyl radical having 1 to 30 carbon atoms, optionally linear, branched or cyclic, and optionally containing heteroatoms selected from the group consisting of O, N and S, and optionally is unsaturated, WB is oxygen or an NH group; Q is SO or QM is M is H, a metal cation or ammonium, an alkylated ammonium ion, or a combination thereof and wherein the asterisk in the formula QM represents a free valency and indicates the linkage to the group (B—O)n.