Abstract: Yellow metal azo pigments based on adducts of at least two metal azo compounds provide improved dispersion properties and are of excellent suitability for pigmentation of pigment preparations for a broad field of use.

Abstract: Yellow metal azo pigments based on adducts of at least two metal azo compounds provide improved dispersion properties and are of excellent suitability for pigmentation of pigment preparations for a broad field of use.

Abstract: The new metal azo pigments comprising the adduct of a) at least two metal azo compounds of the formula (I) or their tautomeric forms in which the substituents have the definition indicated in the description, and b) at least one compound of the formula (II) in which R6 has the definition indicated in the description, are characterized in that in the X-ray diffractogram with a lattice constant of d=10.3 (±0.2) ? the metal azo pigment has a signal S1 with an intensity I1 and in the lattice constant range from d=16.05 ? to d=11.78 ? has no signal S2 whose intensity I2 in relation to the intensity I1 of signal S1, expressed as ratio I2/I1 of the background-corrected intensities, exceeds a value of 0.02, and are outstandingly suitable for producing pigment preparations and especially for producing color filters.

Abstract: The new metal azo pigments comprising the adduct of a) at least two metal azo compounds of the formula (I) or their tautomeric forms in which the substituents have the definition indicated in the description, and b) at least one compound of the formula (II) in which R6 has the definition indicated in the description, are characterized in that in the X-ray diffractogram with a lattice constant of d=10.3 (±0.2) ? the metal azo pigment has a signal S1 with an intensity I1 and in the lattice constant range from d=16.05 ? to d=11.78 ? has no signal S2 whose intensity I2 in relation to the intensity I1 of signal S1, expressed as ratio I2/I1 of the background-corrected intensities, exceeds a value of 0.02, and are outstandingly suitable for producing pigment preparations and especially for producing colour filters.

Abstract: Use of pigments of the formula (I) containing melamine as guest compound and having a dispersion harshness of more than 250 as pigments for color filters for liquid-crystal displays.

Abstract: Process for preparing metal compounds of an azo compound which conforms in the form of its tautomeric structures to the formula (I) characterized in that the preparation takes place in the presence of seed crystals.

Abstract: The use of fluorine-substituted perylenes in color filters for liquid-crystal displays is described.

Abstract: Use of pigments of the formula (I) containing melamine as guest compound and having a dispersion harshness of more than 250 as pigments for colour filters for liquid-crystal displays.

Abstract: Use of pigments of the formula (I) containing melamine as guest compound and having a dispersion harshness of more than 250 as pigments for color filters for liquid-crystal displays.

Abstract: Use of fluorine-substituted perylenes in colour filters for liquid-crystal displays.

Abstract: Use of quinacridones of the formula (I) in which A is an organic radical substituted by one or more fluorine atoms, B is H, F, Cl, Br or an optionally substituted organic radical which may optionally together with A form a ring in colour filters for LCDs.

Abstract: The invention relates to compounds of formula (I) wherein R1, R2, R3 and R4 independently represent OR3 or NR6R7; R5, R6 and R7 independently represent hydrogen, substituted or unsubstituted alkyl, especially C1-C4 alkyl, or substituted or unsubstituted aryl, especially C6-C10 aryl; R6, R7 can also form an aliphatic or aromatic ring, together with the N atom to which they are bonded and optionally other heteroatoms; M represents hydrogen, an equivalent of a monovalent or bivalent metal ion, especially from the group of alkali metals or alkaline earth metals, or of an optionally organically substituted ammonium ion; and B1 represents a bivalent binding link.

Abstract: The invention relates to a process for preparing metal compounds of an azo compound using pumped circulation in a batch process, to the use of the metal compounds as pigments, and to the use of the pigments.

Abstract: Use of pigments of the formula (I) containing melamine as guest compound and having a dispersion harshness of more than 250 as pigments for colour filters for liquid-crystal displays.

Abstract: Process for preparing metal compounds of an azo compound which conforms in the form of its tautomeric structures to the formula (I) characterized in that the preparation takes place in the presence of seed crystals.

Abstract: Process for preparing metal compounds of an azo compound which conforms in the form of its tautomeric structures to the formula (I) characterized in that an aqueous suspension of a corresponding metal compound is heat-treated in at least two pH stages.

Abstract: Aqueous pigment preparations comprising a) at least one pigment b) at least one polymeric carboxylic acid comprising interpolymerized alkoxylated or nonalkoxylated alpha-hydroxy-C1-C6-alkyl-acrylic acid units and at least one component c) and/or d), of which c) is a surfactant which is nonionic and/or anionic, and d) is a condensation product based on A) sulphonated aromatics B) aldehydes and/or ketones and if appropriate C) one or more compounds selected from the group of nonsulphonated aromatics, urea and urea derivatives.

Abstract: Polyalkylenepolyimines having alkoxy units and anionic groups, especially those from the group consisting of —COO?, —SO394 , —OSO3?, —PO32? and —P(OR)O2?, where R represents hydrogen or optionally substituted alky, cycloalkyl or aryl.

Abstract: Pigment preparations comprising a) at least one pigment, b) at least one polyethyleneimine which is alkoxylated, especially ethoxylated and propoxylated and/or butoxylated, and c) at least one condensation product based on A) sulphonated aromatics, B) aldehydes and/or ketones and optionally C) one or more compounds selected from the group consisting of nonsulphonated aromatics, urea and urea derivatives.

Abstract: Preparations of solids comprising a) at least one particulate solid and b) a water-dispersible graft copolymer built up from at least one hydrophobic, ethylenically unsaturated monomer, optionally one or more ethylenically unsaturated hydrophilic monomers, and at least one natural protective colloid or protective colloid obtained from a natural protective colloid by derivatization or thermal, enzymatic, oxidative, hydrolytic or bacteriological degradation having an average molar mass of Mn>500 g/mol.