Abstract: Ternary pigment compositions of compounds of formulae (I), (II) and (III) obtainable by reaction of succinic acid diesters with from 90 to 15 mol % 4-methylbenzonitrile and from 10 to 85 mol % 3-methylbenzonitrile, the molar amounts of the benzonitriles totalling 100 mol %, a process for the preparation thereof, and the use thereof for pigmenting organic material.

Abstract: Ternary pigment compositions of compounds of formulae (I), (II) and (III) 1

Abstract: Ternary pigment compositions of compounds of formulae (I), (II) and (III) 1

Abstract: Substance compositions, which comprise at least one diketopyrrolopyrrole from each of formulae ##STR1## R.sub.1 is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 alkylthio, halogen or phenyl,R.sub.2 is a COX group, whereinX is NR.sub.4 R.sub.5 or a heterocyclic radical containing at least 2 N atoms, one of which N atoms forms an amide with the carbonyl group,R.sub.3 is hydrogen, halogen or C.sub.1 -C.sub.6 alkyl,Admixture of such a substance composition to diketopyrrolopyrrole pigments improves the rheological behaviour of the latter as well as the gloss of the colorations produced therewith to an unexpected degree.

Abstract: A pigment composition, comprisinga) 80-99.8 mol % of a diketopyrrolopyrrole of formula ##STR1## wherein A and B are each independently of the other a ##STR2## wherein R.sub.1 and R.sub.2 are each independently of the other hydrogen, chloro, bromo, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.8 alkoxy, C.sub.2 -C.sub.19 alkoxycarbonyl, C.sub.2 -C.sub.19 alkylcarbamoyl, C.sub.1 -C.sub.18 alkylmercapto, C.sub.1 -C.sub.18 alkylamino, C.sub.5 -C.sub.6 cycloalkyl, G is a direct bond or --O--, --S--, --SO--, --SO.sub.2 -- or --NR.sub.5 --, R.sub.3 and R.sub.4 are each independently of the other hydrogen, chloro, bromo, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.18 alkoxy or C.sub.1 -C.sub.18 alkylamino, and R.sub.5 is hydrogen or C.sub.1 -C.sub.6 alkyl, andb) 20-0.2 mol % of a diketopyrrolopyrrole of formula ##STR3## wherein one of R.sub.6 or R.sub.7 is hydrogen and the other is --CN. Such pigment compositions are distinguished by excellent resistance to recrystallisation and heat.

Abstract: The invention relates to diketopyrrolo?3,4-c!pyrroles of formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other hydrogen, halogen, C.sub.1 -C.sub.6 alkyl, cyano or a --OR.sub.3, --COOR.sub.3, --CON(R.sub.3)(R.sub.4), --COR.sub.3 or --N(R.sub.3)(R.sub.4) group, and R.sub.3 and R.sub.4 are each independently of the other hydrogen, C.sub.1 -C.sub.6 alkyl, phenyl which is unsubstituted or substituted by halogen or C.sub.1 -C.sub.6 alkyl.Said diketopyrrolo?3,4-c!pyrroles are pigments colored in a strong yellow shade having good fastness properties.

Abstract: Diketopyrrolopyrrole of the formula ##STR1## in its .beta.-modification. The new .beta.-modification is likewise suitable as a pigment for coloring high-molecular weight organic material and, in comparison to the a-modification, shows a shift in shade towards yellowish-red.

Abstract: The pigment form of the diketopyrrolopyrrole pigment of formula ##STR1## having high saturation, characterised by a chroma C*.sub.ab of at least 45 in the CIELAB system when incorporated in a plasticised PVC pressed sheet. This pigment has superior opacity and an unexpectedly high chroma.

Abstract: Finely divided 1,4-diketopyrrolo[3,4-c]pyrroles of the formula ##STR1## where A and B are each independently of the other a radical of the formula ##STR2## wherein at least 84% by weight of the particles have a Stokes equivalent diameter of .ltoreq.0.25 .mu.m, and mixtures thereof.The substituents R.sub.1 and R.sub.2 are defined in claim 1.These pigments are notable for a very pure hue and outstanding transparency.