Abstract: The invention provides a method of conditioning azo pigments containing carboxylic ester groups, using glycol monoalkyl ethers or mixtures of glycols and glycol dialkyl ether.

Abstract: The invention relates to a pigment preparation which contains the monoazo pigment of the formula (I) and 0.1% to 40%, preferably 0.5% to 25%, in particular 1.0% to 17.5% of a pigment dispersant, in relation to the weight of the monoazo pigment of the formula (I), which is composed of disazo compounds at least 30% of the diazo compounds forming an asymmetric disazo compound of the formula (II) Y-X-A-X-Z??(II), in which A is biphenylene, 3,3?-dichlorobiphenylene, 3,3?-dimethoxybiphenylene, 3,3?-dimethylbiphenylene or 2,2?-dichloro-3,3?-dimethoxybiphenylene; X is a group —NH—CO—CH(COCH3)—N?N—, —N?N—CH(COCH3)—CO—NH—or —N?N—; Y is substituted or unsubstituted phenyl, pyrazolin-5-on-4-yl, 1-phenyl-Pyrazolin -5-on-4-Lyl, 2-hydroxynaphth-1-yl or 2-hydroxy-3-(phenylamino-carbonyl) naphth-1-yl, the substituents being C1-C4 alkyl, C1-C4 alkoxy, nitro, halogen or C1-C4 alkoxycarbonyl, and have the meaning of Y, and the compounds being further substituted with a sulfonic acid group present as an ammonium salt.

Abstract: The invention relates to a pigment preparation which contains the mono-azo pigment of formula (1) and 0.1 to 40% by weight, preferably 0.5 to 25% by weight, in particular 1.0 to 17.

Abstract: The invention provides a method of conditioning azo pigments containing carboxylic ester groups, using glycol monoalkyl ethers or mixtures of glycols and glycol dialkyl ethers

Abstract: The invention relates to a pigment composition containing a disazo pigment of formula (I) and at least one phthalocyanine pigment.

Abstract: Finely divided azo dye and process for producing the same. The invention relates to a finely divided mono-azo pigment of formula (I) in the beta crystal phase (I), characterised in that at least 90 % by weight of the particles have a stoke equivalent diameter equal to or smaller than 130 nm.

Abstract: A pigment composition containing a disazo pigment of formula (I) and at least one pigment from the group of organic orange, red and violet pigments

Abstract: The invention relates to a pigment composition containing a disazo pigment of formula (I), and at least one pigment from the group of organic orange, red and violet pigments.

Abstract: A process for preparing disazo condensation pigments by diazotization of an aromatic amine, azo coupling with a coupling component to form an azocarboxylic acid or azodicarboxylic acid, formation of an azocarbonyl chloride or azodicarbonyl dichloride and condensation of the azocarbonyl chloride with an aromatic diamine or of the azodicarbonyl dichloride with an aromatic amine comprises effecting the acyl chloride formation and/or the condensation and optionally the diazotization and optionally the azo coupling in a microreactor.

Abstract: A process for preparing disazo condensation pigments by diazotization of an aromatic amine, azo coupling with a coupling component to form an azocarboxylic acid or azodicarboxylic acid, formation of an azocarbonyl chloride or azodicarbonyl dichloride and condensation of the azocarbonyl chloride with an aromatic diamine or of the azodicarbonyl dichloride with an aromatic amine comprises effecting the acyl chloride formation and/or the condensation and optionally the diazotization and optionally the azo coupling in a microreactor.

Abstract: Novel isoindoline pigments of the formula (I): ##STR1## in which R.sup.1 is --CN;R.sup.2 is --CN or a saturated or unsaturated, aromatic or non-aromatic, 5- to 7-membered heterocyclic ring system which can be modified by fusion or bridging with other heterocyclic or isocyclic ring systems, the heteroatoms being N, O and/or S;or a group --CO--NR.sup.6 R.sup.7, in which R.sup.6 and R.sup.7 are identical or different and are hydrogen or C.sub.1 -C.sub.4 -alkyl;or a group --CO--NR.sup.6 R.sup.8, in which R.sup.8 is a saturated or unsaturated, aromatic or non-aromatic, 5- to 7-membered isocyclic or heterocyclic ring which is unsubstituted or substituted by one to 5 of the following radicals: C.sub.1 -C.sub.4 -alkyl, halogen, trifluoromethyl, C.sub.1 -C.sub.4 -alkoxy, carbomethoxy, carbethoxy, carboxamide, carboxamide substituted by a C.sub.1 -C.sub.4 -alkyl or phenyl group, nitro, C.sub.1 -C.sub.

Abstract: Novel isoindoline pigments of the formula (I) ##STR1## in which R.sup.1 is --CN and R.sup.2 is CN or a 5- to 7-membered hetero-cycle;R.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl, phenyl, C.sub.1 -C.sub.4 -alkoxy, halogen or C.sub.2 -C.sub.4 -acylamino;R.sup.4 is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen, trifluoromethyl, methoxy, ethoxy or nitro;m is a number from 1 to 4;n is a number from 1 to 3; andR.sup.5 is hydrogen or C.sub.1 -C.sub.4 -alkyl.