Abstract: The invention relates to sulfonyl-bridged perinones in the form of compounds of the general formula (I) or isomeric forms thereof in which R is C1-C6-alkyl, halogen, nitro, aryl, aryloxysulfonyl, hydroxy, C1-C6-alkoxy, aryloxy, optionally alkyl- or acyl-substituted amino, optionally alkyl- or aryl-substituted aminosulfonyl, or a fused-on cycloaliphatic or heterocyclic radical, to a process for production thereof and to the use thereof for bulk colouring of plastics.

Abstract: The present invention relates to urethane-acrylate-resin-based 3D-printed products having a colour distance ?E<20 from the L*a*b* coordinates for a colour number, beginning with “3”, of the RAL colour chart, comprising at least one red perinone dye to be selected from 8,9,10,11-tetrachloro-12H-phthaloperin-12-one and/or 14H-benz[4,5]isoquino[2,1-a]perimidin-14-one dissolved therein, to the use of said red perinone dyes for producing 3D-printed products having a colour distance ?E<20 from the L*a*b* coordinates for a colour number, beginning with “3”, of the RAL colour chart by photopolymerization, and to a method for increasing the lightfastness and the colouristic properties of photopolymerizable urethane-acrylate-resin-based compositions and 3D-printed products based thereon by means of at least one red perinone dye to be selected from 8,9,10,11-tetrachloro-12H-phthaloperin-12-one and/or 14H-benz[4,5]isoquino[2,1-a]perimidin-14-one dissolved therein.

Abstract: The present invention relates to urethane-acrylate-resin-based 3D-printed products having a colour distance ?E<20 from the L*a*b* coordinates for a colour number beginning with “2” of the RAL colour chart, comprising at least one orange methine dye dissolved therein, to the use of orange methine dyes for producing 3D-printed products having a colour distance ?E<20 from the L*a*b* coordinates for a colour number of the RAL colour chart beginning with “2” by photopolymerization-based 3D printing, and to a method for increasing the lightfastness and colouristic properties of photopolymerizable urethane-acrylate-resin-based compositions and 3D-printed products to be produced therefrom having a colour distance ?E<20 from the L*a*b* coordinates for a colour number beginning with “2” of the RAL colour chart by means of at least one orange methine dye dissolved therein.

Abstract: The present invention relates to new pigment preparations based on metal azo pigments and aliphatic C10-22 monocarboxylic acids, to processes for their production and their use as a yellow pigment for colouring plastics, and to the use of aliphatic C10-22 monocarboxylic acids for improving the filtration properties of pigment preparations with at the same time improved colour strengths.