Abstract: The invention provides a composition comprising particles of an optionally halogenated phthalocynine (a); from 0.5 to 10% weight, preferably from 2 to 8% by weight, based on the optionally halogenated phthalocyanine (a), or a vinylic or acrylic polymer (b); and from 1 to 15% by weight, preferably from 3 to 10% by weight, based on the optionally halogenated phthalocyanine (a), of an optionally halogenated phthalocyanine (c) which is outside the particles of the optionally halogenated phthalocyanine (a) and is substituted by a group comprising at least 1 hetero atom selected from the group consisting of N, O, S and P and at least 3 carbon atoms. The instant compositions comprising three essential components are surprisingly warpfree in substrate such as partially crystalline plastics, especially those processed by injection moulding. Geometrically identical parts of different colours are obtained.

Abstract: Novel improved single-phase mixed crystals of monoazo dyes laked with alkaline earth metal cations and ammonium cations in a molar ratio of about 1:2 having a fine particle size and substantially better fastness properties than similar known products are excellently suitable as tinctorially strong pigments. Also claimed is a process for the preparation of a single-phase mixed crystal pigment of formula wherein E is Mg, Ca or Sr, by crystallisation from an inert hydrophilic liquid in the presence of solvated catiens E++, NR5R6R7R8+, x is a number from 0.33 to 0.62 and y is a number from 0.76 to 1.34, and the concentration of solvated catiens E++ at the beginning of the crystallisation is higher than the concentration of solvated cations NR5R8R7R8+.

Abstract: The present invention relates to surface-treated organic pigments, to a process for their preparation and to their use in colouring a high molecular weight organic material. Compared with untreated pigments, the surface-treated pigments exhibit better rheological properties and/or no warping in the pigmenting of partially crystalline plastics.

Abstract: The invention relates to the use of compounds of the formula R1, R2, R3 and R4 independently of one another are hydrogen, halogen, R6, OR6 or SR6, R5 is hydrogen or linear or branched C1-C12alkyl, benzyl or phenethyl, and R6 is an apolar group which is unsubstituted or substituted one or more times by halogen or by OC1-C6alkyl, with the proviso that if R5 is hydrogen, R1, R2, R3 or R4 is R6, OR6 or SR6, as additives in the pigmentation of partially crystalline plastics, especially those processed by injection moulding, with pigments containing at least one each of groups which are joined to one another as or are in conjugation with one another. Preferred pigments are quinacridone pigments, disazo condensation pigments, isoindolinone pigments and pyrrolo[3,4-c]pyrrole pigments, especially pyrrolo[3,4-c]pyrrole pigments. Corresponding formulations and novel compounds are likewise claimed. By these means it is possible to avoid warping.

Abstract: Organic pigments are conditioned by treating them, after synthesis but preferably without or with only partial drying, in a mixture of from 1 to 30% by weight of a neutral, polar liquid having a dipole moment ? of 2.8-6.0? 10?18 esu (2.8 to 6.0 debye units) and from 70 to 99% by weight of water in an agitated media pearl mill having a specific power density of at most 2.0 kJs??1 per liter of grinding space. Drying is especially suitable in the case of only slightly agglomerating, easy to wet pigments of specific surface area from 1 to 25 m2/g. The method gives excellent results, and is flexible and also much simpler than known methods.

Abstract: Organic solid solution pigments are prepared and conditioned by treating a mixture of their components, after synthesis but perferably without or with only partial drying, in a mixture of from 0 to 30% by weight of an organic liquid having a dipole moment ? of 2.8-6.0·10?18 .esu (2.8 to 6.0 debye units) and from 70 to 100% by weight of water in an agitated media pearl mill having a specific power density of at most 2.0 kj·s?1 per litre of grinding space. Drying the starting components is especially suitable in the case of only slightly agglomerating, easy to wet pigments of specific surface area from 1 to 25 m2/g. The method gives excellent results, and is flexible and also much simpler than known methods.

Abstract: The invention relates to a compound of the 1-aminoanthraquinone, anthanthrone, anthrapyrimidine, quinacridone, dioxazine, diketopyrrolopyrrole, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perinone, perylene, phthalocyanine, pyranthrone or thioindigo series, which compound has one or more sulfonate groups of formula (1) wherein R1 is methyl or ethyl, R2, R3? and R4 are each independently of the others C6-C24alkyl or C6-C24alkenyl, m is a number from 0.3 to 1.0 and n is a number from 0 to (1.0 m), the compound being suitable for use as a pigment dispersant and rheology improver. Also claimed are modified pigments having that compound on their surface, and also pigment compositions and dispersions comprising that compound.

Abstract: The invention relates to a compound of the 1-aminoanthraquinone, anthanthrone, anthrapyrimidine, quinacridone, dioxazine, diketopyrrolopyrrole, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perinone, perylene, phthalocyanine, pyranthrone or thioindigo series, which compound has one or more sulfonate groups of formula (I) wherein R1 is methyl or ethyl, R2 is C6-C24alkyl, C6-C24alkenyl or C7-C24aralkyl, R3 and R4 are each independently of the other a chain consisting 1, 2 or 3 members, each member independently of any other(s) being (CH2))2O—, —(CH2)3O—, CH(CH3)CH2O—, —CH2CH(CH3)—O— or —CH2CH(CH2O—)O—and the chains being terminated by H, CH3, C2H5 ?or C(═O)CH3, m is a number from 0.3 to 1.0 and n is number from 0 to (1.0−m), the compound being suitable for use as a pigment dispersant and rheology improver.

Abstract: The invention relates to the use of compounds of the formula in which R1, R2, R3 and R4 independently of one another are hydrogen, halogen, R6, OR6 or SR6, R5 is hydrogen or linear or branched C1-C12alkyl, benzyl or phenethyl, and R6 is an apolar group which is unsubstituted or substituted one or more times by halogen or by OC1-C6alkyl, with the proviso that if R5 is hydrogen, R1, R2, R3 or R4 is R6, OR6 or SR6, as additives in the pigmentation of partially crystalline plastics, especially those processed by injection moulding, with pigments containing at least one each of groups which are joined to one another as or are in conjugation with one another. Preferred pigments are quinacridone pigments, disazo condensation pigments, isoindolinone pigments and pyrrolo[3,4-c]pyrrole pigments, especially pyrrolo[3,4-c]pyrrole pigments. Corresponding formulations and novel compounds are likewise claimed.

Abstract: The present invention relates to surface-treated pigments of formula (I), wherein Ar1 and Ar2 are each independently of the other a phenyl or naphthalene group, n1 and n2 denote a value from 0 to 0.15, the sum of n1 and n2 being a value from 0.01 to 0.

Abstract: The invention relates to a compound of the 1-aminoanthraquinone, anthanthrone, anthrapyrimidine, quinacridone, dioxazine, diketopyrrolopyrrole, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perinone, perylene, phthalocyanine, pyranthrone or thioindigo series, which compound has one or more sulfonate groups of formula (I) wherein R1 is methyl or ethyl, R2 is C6-C24alkyl, C6-C24alkenyl or C7-C24aralkyl, R3 and R4 are each independently of the other a chain consisting of 1, 2 or 3 members, each member independently of any other(s) being (CH2))2 O—, —(CH2)3O—,CH(CH3)CH2O—,—CH2CH(CH3)—O-or—CH2CH(CH2O—)O— and the chains being terminated by H, CH3, C2H5 ?or C(═O)CH3, m is a number from 0.3 to 1.0 and n is number from 0 to (1.0-m), the compound being suitable for use as a pigment dispersant and rheology improver.

Abstract: The invention relates to the use of compounds of the formula 1

Abstract: Novel improved mixed crystals of monoazo dyes of formula (I), wherein R1 is methyl or chlorine, and R2, R3 and R4 are each independently of the others hydrogen, methyl or chlorine, which dyes have been laked with alkaline earth metal cations and ammonium cations in a molar ratio of about 1:2. The mixed crystals are single-phase. The products according to the invention, while having a fine particle size, exhibit substantially better fasteness properties than similar known products and are therefore excellently suitable as tinctorially strong pigments. In addition, the part played by after-treatment is less critical.

Abstract: Organic pigments are conditioned by treating them, after synthesis but preferably without or with only partial drying, in a mixture of from 1 to 30% by weight of a neutral, polar liquid having a dipole moment &mgr; of 2.8-6.0? 10−18 esu (2.8 to 6.0 debye units) and from 70 to 99% by weight of water in an agitated media pearl mill having a specific power density of at most 2.0 kjs7−1 per litre of grinding space. Drying is especially suitable in the case of only slightly agglomerating, easy to wet pigments of specific surface area from 1 to 25 m2/g. The method gives excellent results, and is flexible and also much simpler than known methods.

Abstract: The invention relates to a compound of the 1-aminoanthraquinone, anthanthzone, anthrapynimidine, quinacridone, dioxazine, diketopyrrolopyrrole, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perinone, perylene, phthalocyanine, pyranthrone or thioindigo series, which compound has one or more sulfonate groups of formula (1) wherein R1 is methyl or ethyl, R2, R3? and R4 are each independently of the others C6-C24alkyl or C6-C24alkenyl, m is a number from 0.3 to 1.0 and n is a number from 0 to (1.0 m), the compound being suitable for use as a pigment dispersant and rheology improver. Also claimed are modified pigments having that compound on their surface, and also pigment compositions and dispersions comprising that compound.

Abstract: The invention relates to the use of compounds of the formula 1

Abstract: An injection-molding process using warp-free pigment compositions including diaryldiketopyrrolo[3,4-C]pyrroles to improve the dimensional stability of the injection molded product by decreasing warping wherein the constituents of the formulation being injection molded are added into an injection molding machine in ready-premixed form or simultaneously as individual components. Preferred pigments are quinacridone pigments, disazo condensation pigments, isoindolinone pigments and pyrrolo[3,4-C]pyrrole pigments with pyrrolo[3,4-C]pyrrole pigments being especially preferred.

Abstract: A process for the warp-free pigmenting of polyolefins, wherein an organic pigment is used whose particles are coated on the surface by one or more films of polar polymers.

Abstract: The present invention relates to a process for pigmenting a porous metal oxide by applying a solution of a soluble pigment derivative and regenerating the organic pigment by heating, whereby the organic pigment is deposited into the metal oxide's pores. The invention also relates to pigmented porous metal oxides and materials comprising a solid substrate and a surface layer of a pigmented metal oxide.

Abstract: The instant invention relates to a process for the warp-free pigmenting of polyolefins, which process comprises admixing coated pigment particles with a polyolefin, wherein said coated pigment particles are prepared by coating organic pigment particles with one or more films of a preformed polymer by adsorption thereon of from 1 to 10% by weight of the polymer, based on the pigment particles, at room temperature, the polymer being selected from the group consisting of polyvinylpyrrolidone homopolymers and copolymers.