Universal pigment preparations for point-of-sale use
AssigneeBASF SE
InventorsHansulrich Reisacher, Uwe Mauthe
Life of this patent
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Abstract
Subject matter are aqueous, low-VOC/SVOC universal pigment preparations comprising a pigment component; a water-soluble, nonionic, surface-active additive comprising a copolymer formed from a vinyl monomer and from an ethylenically unsaturated monomer selected from the group consisting of monocarboxylic esters, dicarboxylic esters, monocarboxamides, and dicarboxamides, the vinyl monomer and/or the ethylenically unsaturated monomer containing an N-containing group with pigment affinity; a phosphoric or phosphonic ester, and optionally customary additives. The aqueous pigment preparations are suitable for the coloring of inks, paints, and renders, especially in metering systems at the point of sale or in in-plant tinting systems.
Claims14
A pigment preparation, comprising:
- (A) 1 to 80 wt % of a pigment component which comprises a pigment and optionally a filler;
- (B) 0.01 to 10 wt % of a water-soluble, nonionic, surface-active additive comprising a copolymer formed from a vinyl monomer selected from the group consisting of 4-aminostyrene, 4-dimethylaminostyrene, 4-vinylpyridine, 2-vinylpyridine, 1-vinylimidazole, vinylpyrrolidone, and vinylcaprolactam;
- and from an ethylenically unsaturated monomer selected from the group consisting of a monocarboxylic ester, a dicarboxylic ester, a monocarboxamide, and a dicarboxamide,
- wherein the vinyl monomer, the ethylenically unsaturated monomer, or both comprises an N-containing group with pigment affinity;
- (C) 0.01 to 8 wt % of a phosphoric ester and/or a phosphonic ester;
- (D) 0 to 20 wt % of an additional additive customary for aqueous pigment preparations;
- and
- (E) water,
- where component (C) is formed by an additive based on lecithin, an anionic additive based on phosphoric ester, a phosphonic ester of polyalkylene oxide, a combination thereof, or of reaction product of alkylene oxide or aryl-substituted alkylene oxide with an aliphatic amine, an aromatic amine, an aliphatic carboxylic acid, an aliphatic carboxamide, a salt thereof, or an ester thereof, and
- where a sum of percentages by weight of components (A) to (E) is 100 wt %.
Dependencies are inferred from the claim text.