Abstract: The present invention relates to a process for the preparation of a mixture comprising at least two structurally different diketopyrrolopyrrole pigments of formula (1) wherein A1 and A2 are each independently of the other an aromatic or heteroaromatic radical, by reacting a succinic acid ester with at least one unsubstituted or substituted aromatic or heteroaromatic nitrile, which process comprises carrying out the reaction in the presence of at least one compound of formula (2) wherein A is an aromatic or heteroaromatic radical, R3 is hydrogen, halogen, methyl, methoxy, —CF3 or —CN, R4 is a linear or, from C3 upwards, optionally branched C1-C30alkyl, C6-C10aryl or C6-C24aralkyl radical, X is —S—, -0-, —CR5R5?—, —COO—, —CONR5—, —SO—, SO2—, —SO2NR5— or —NR5— and R5 and R5? are each independently of the other hydrogen or a linear or, from C3 upwards, optionally branched C1-C30alkyl, C6-C10aryl or C6-C24aralkyl radical, to the use of such a mixture in the colouring of organic material and in cosmetics, and also

Abstract: The present invention relates to high-molecular-weight polymeric material comprising at least one diketopyrrolopyrrole pigment of formula (1) wherein R1, is hydrogen, chlorine, methyl, methoxy, CF3 or CN, R2 is hydrogen, chlorine, methyl, methoxy, CF3 or CN, A is hydrogen, chlorine, methyl, mehtoxy, CF3, CN, unsubstituted or substituted phenyl or a radical of formula (2), (2a) or (2b), wherein R5 is hydrogen, chlorine, methyl, methoxy, nitro, CF3 or CN and R6 is hydrogen, chlorine, methyl, methoxy, nitro, CF3 or CN, or R5 and R6 together with the phenyl ring to which they are bonded form an aryl or a heteroaryl and A1 is a radical of formula (2), (2a) or (2b), to the preparation of that material and to the use thereof in colour filters, and to novel diketopyrrolopyrrole pigments.

Abstract: The present invention relates to the use of polymerisable diketopyrrolopyrroles in colour filters, which can themselves be used for example in electro-optical systems such as TV screens, liquid crystal displays, charge coupled devices, plasma displays or electroluminescent displays and the like. In contrast to conventional pigments the polymerisable diketopyrrolopyrroles do not tend to aggregate and, hence, show very good dispersibility. Color filters prepared by using the polymerisable diketopyrrolopyrroles have high transparence and pure hue. In addition, they facilitate adjustment of color points and enable a large choice of shades.

Abstract: The present application relates to a process for the manufacture of pigmented vitreous materials, as well as to pigmented vitreous materials, characterized by the use of soluble pigment precursors and preferably the absence of significant amounts of dispersants. These pigmented vitreous materials can be used as colored materials for any known purposes. Soluble pigment precursors comprising a partial structure are also claimed, wherein X1 is an aromatic or heteroaromatic ring, B is hydrogen or a group of the formula but at least one group B is not hydrogen, and L is a solubilizing group.

Abstract: The present invention relates to compositions comprising at least one oxonol dye and at least one metal complex of formula (I-1) or (I-2), to recording media comprising the compositions and to use of the compositions in the production of optical recording media, colour filters and printing inks, wherein the substituents are as defined in the description. Use of the metal complexes of formula (I) results, surprisingly, in a comparatively weak tendency of the oxonol dyes to aggregate in the solid state so that the absorption curve remains advantageously narrow even in the solid state, as a result of which recording media having high reflectivity as well as high sensitivity and good playback characteristics in the desired spectral range are made available.

Abstract: The present application relates to a process for the manufacture of pigmented vitreous materials, as well as to pigmented vitreous materials, characterized by the use of soluble pigment precursors and preferably the absence of significant amounts of dispersants. These pigmented vitreous materials can be used as coloured materials for any known purposes.

Abstract: Monoazoquilolone pigments which, in one of the tautomeric forms thereof, correspond to formula (1), wherein Ar is a radical of formula (2a), (2b), (2c), (2d), 2(e) or (2f) wherein R1 is C1-C4alkyl, R2 and R3 are each independently of the other hydrogen, halogen, C1-C4alkyl, carboxy, sulfo, cyano, C1-C4alkoxycarbonal, C1-C4alkylcarbonyl, C1-C4alkanoylamino, benzoylamino that is unsubstituted or substituted in the phenyl ring by halogen, nitro, C1-C4alkyl or by C1 -C4alkoxy; carbamoyl, N-C1-C4alkylaminocarbonyl, N-arylaminocarbonyl that is unsubstituted or substituted in the aryl moiety by halogen, nitro, C1-C4alkyl or by C1-C4alkoxy; N,N-di-C1-C4alkylaminocarbonyl, C1-C4alkoxysulfonyl, C1-C4alkylsulfonyl, sulfamoyl, N-C1-C4alkylaminosulfonyl, N-arylaminosulfonyl that is unsubstituted or substituted in the aryl moiety by halogen, nitro, C1-C4alkyl or by C1-C4alkoxy; or N,N-di-C1-C4alkylaminosulfonyl, wherein carboxy and sulfo are in the form of the free acid or in salt form, R8and R9are each independently of th

Abstract: Monoazoquilolone pigments which, in one of the tautomeric forms thereof, correspond to formula (1), wherein Ar is a radical of formula (2a), (2b), (2c), (2d), 2(e) or (2f) wherein R1 is C1-C4alkyl, R2 and R3 are each independently of other hydrogen, halogen.

Abstract: The present application relates to a process for the manufacture of pigmented vitreous materials, as well as to pigmented vitreous materials, characterized by the use of soluble pigment precursors and preferably the absence of significant amounts of dispersants. These pigmented vitreous materials can be used as coloured materials for any known purposes.

Abstract: Compound of formula 1

Abstract: The present invention relates to pigmentary solid solutions comprising copper phthalocyanine (Pigment Blue 15; C.I. 74160) as host and other blue to violet pigments as guests. Preferred hosts are the &agr; (Pigment Blue 15:1), &bgr; (Pigment Blue 15:3) and &egr; (Pigment Blue 15:6) crystal forms of copper phthalocyanine, especially the &egr; crystal form. The present invention also relates to dispersions comprising solid solutions as pigment particles, and pigment derivatives as rheology improvers. Preferred dispersions of solid solutions in the e crystal lattice may be used in particular to prepare color filters for liquid-crystal displays (LCDs). The present invention also includes a process for preparing the dispersions of the invention, the solid solutions themselves, and the use thereof to pigment high molecular mass organic materials.

Abstract: The present application relates to a process for the manufacture of pigmented vitreous materials, as well as to pigmented vitreous materials, characterized by the use of soluble pigment precursors and preferably the absence of significant amounts of dispersants. These pigmented vitreous materials can be used as colored materials for any known purposes. Soluble pigment precursors comprising a partial structure are also claimed, wherein X1 is an aromatic or heteroaromatic ring, B is hydrogen or a group of the formula but at least one group B is not hydrogen, and L is a solubilizing group.

Abstract: The present invention relates to compositions comprising a sulfonated diketopyrrolopyrrole and a Mannich-type substituted dihydroquinacridone to produce colored materials having improved stability at high temperatures. The instant compositions can be used for pigmenting polymeric materials, such as color filters.

Abstract: The invention relates to phthalocyanine compounds and are represented by the formula: The compounds are used as a colorant and a pigment precursor, especially in light-sensitive compositions for color filters.

Abstract: This invention relates to substituted azophthalocyanine pigment precursors which produce uniform mixed colors when their solubilising groups are eliminated.

Abstract: The present invention relates to compositions comprising a sulfonated diketopyrrolopyrrole and a Mannich-type substituted dihydroquinacridone. Such compositions are excellently suitable for dispersing fine-sized pigments (especially diketopyrrolopyrrole pigments) into polymers. They lead to pigmentations of increased stability at high temperatures.

Abstract: The invention relates to pigmentary solid solutions comprising copper phthalocyanine (Pigment Blue 15; C.I. 74160) as host and other blue to violet pigments as guests. Preferred hosts are the &agr; (Pigment Blue 15:1), &bgr; (Pigment Blue 15:3) and &egr; (Pigment Blue 15:6) crystal forms of copper phthalocyanine, especially the &egr; crystal form. Monophase solid solutions are preferred.

Abstract: This invention relates to a black-pigmented high molecular weight organic material which is structured from a radiation-sensitive precursor by irradiation, the pigmentation of which material consists of coloured organic pigments, at least one of which is in latent form before irradiation. This material is preferably used as a thin layer which is built up in the form of patterns on a transparent substrate and which can be used, for example, as black matrix for optical colour filters. This invention also relates to a process for the preparation of this material as well as to novel soluble derivatives of yellow disazo condensation pigments which can be used in this process.

Abstract: This invention relates to a black-pigmented high molecular weight organic material which is structured from a radiation-sensitive precursor by irradiation, the pigmentation of which material consists of coloured organic pigments, at least one of which is in latent form before irradiation. This material is preferably used as a thin layer which is built up in the form of patterns on a transparent substrate and which can be used, for example, as black matrix for optical colour filters. This invention also relates to a process for the preparation of this material as well as to novel soluble derivatives of yellow disazo condensation pigments which can be used in this process.