Abstract: The present invention relates to novel pigment mixtures, comprising two different components A and B, wherein component A is a graphite in the form of platelets (graphite nanoplatelets), which have an average particle size of below 50 microns and a thickness below 100 nm, and component B is an organic, or inorganic pigment. The use of graphite nanoplatelets in a pigment mixture with organic and/or inorganic pigments, especially effect pigments (component B), allows the preparation of metallic like colorations with a maximal opacity (background substrate disappears totally) while keeping a good rheological behavior (low concentration use).

Abstract: The present invention relates to compositions such as coatings, printing inks or cosmetics, which contain pigments comprising or consisting of a layer made of a material with an index of refraction that is higher than the index of refraction of the adjacent material by at least 0.25; whereas said layer has a zero-order diffractive micro-structure; whereas said layer acts as an optical waveguide and whereas said layer has a thickness between 50 nm and 500 nm; to processes for its manufacture and to its use. These pigments show a colour effect upon rotation and/or tilting, and it is believed that this colour effect is based on zero-order diffraction.

Abstract: The present invention relates to (interference) pigments comprising a plate-like substrate, a layer of SnO2, and/or a layer of a metaloxide, which is selected from Fe2O3, TiO2, ZrO2 and/or HfO2, said layer(s) being doped with Mo and/or W, or pigments comprising a plate-like substrate, a layer of a metal oxide, which is selected from Fe2O3, TiO2, ZrO2 and/or HfO2, said layer(s) being doped with Nb and/or Ta, a method of producing the (interference) pigments and their use in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings, printing inks, plastics, cosmetics, glazes for ceramics and glass. The pigments of the present invention have very bright color and show color flop.

Abstract: The invention relates to an electrophoretic display, comprising electrodes and cells containing at least one kind of ionic, monochrome particles, a non-polar liquid and a dispersant, wherein the ionic, monochrome particles of at least one kind are essentially aggregates consisting of a carbon containing pigment and a cationic pigment orcationic pigment derivative, and the dispersantis selected from the group consisting of polyacrylates, polyesters, polyurethanes and copolymers, with the proviso that the cationic pigment or cationic pigment derivative is not a reaction product of carbonblack with diazotated procaine hydrochloride. In general, the whole quantity of the pigment and the main part, preferably at least 80%, most preferred from 95% to 100%, of the whole cationic pigment or cationic pigment derivative present within the cells is comprised in the aggregates, with essentially no pigment and only a minor part of the cationic pigment or cationic pigment derivative physically distinct from the aggregates.

Abstract: The invention relates to an electrophoretic display, comprising electrodes and cells containing at least one kind of ionic, monochrome particles, a non-polar liquid and a dispersant, wherein the ionic, monochrome particles of at least one kind are essentially aggregates consisting of a carbon containing pigment and an anionic pigment or anionic pigment derivative, and the dispersant is selected from the group consisting of polyacrylates, polyesters, polyurethanes and copolymers. In general, the whole quantity of the pigment and the main part, preferably at least 80%, most preferred from 95% to 100%, of the whole anionic pigment or anionic pigment derivative present within the cells is comprised in the aggregates, with essentially no pigment and only a minor part of the anionic pigment or anionic pigment derivative physically distinct from the aggregates.

Abstract: The present invention relates to pigments comprising (A) a platelet-shaped substrate (S), (B) a coating comprising two different metal oxides having a difference in refractive index of at least 0.1, wherein the metal oxide having a higher refractive indexis the metal oxide MOH and the metal oxide having a lower refractive index is the metal oxide MOL, wherein the amount of MOH and the amount of MOL changes (continuously), (C) a coating comprising metal oxides MOH and MOL, wherein the amount of MOH and the amount of MOL changes (continuously), and (D) optionally an outer protecting layer; a process for their production and their use in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings (paints), printing inks, plastics, cosmetics, glazes for ceramics and glass. The pigments can show enhanced colour chroma while maintaining the lightness of coventional interference pigments, or vice versa.

Abstract: The present invention relates to pigments, comprising a plate-like substrate of perlite, and (a) a dielectric material, especially a metal oxide, having a high index of refraction; and/or (a) a metal layer, especially a thin semi-transparent metal layer; a process for their production and their use in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings (paints), printing inks, plastics, cosmetics, glazes for ceramics and glass.

Abstract: The present invention relates to a method for preparing (pearlescent) pigments, comprising the steps of: (1) coating of a sheet silicate with a desired metal oxide, wherein coated flakes are obtained, (2) delamination of the coated flakes obtained in step (1), wherein exfoliated coated flakes and exfoliated non-coated flakes are obtained, (3) separation of the exfoliated coated flakes from the exfoliated non-coated flakes, (4) coating the exfoliated coated flakes obtained in step (3) with metals, metal oxides, metal sulfides, metal nitrides or mixtures thereof, wherein a (pearlescent) pigment is obtained; to (pearlescent) pigments, obtainable by the process and to the use of the (pearlescent) pigments in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings, printing inks, plastics, cosmetics, glazes for ceramics and glass.

Abstract: A method for producing infra-red inert substrates, including moulded polymeric articles, films, fibers and coatings and other organic and inorganic materials, by incorporating into the substrate or onto the surface of the substrate an effective amount of a dispersed bis-oxodihydroindolylen-benzodifuranone colourant. The thus obtained, also claimed substrates so produced are reflective and transparent to much of the near infra red radiation not reflected. There are multiple applications for cases of devices comprising electronic components, outdoor construction elements, outdoor furniture, automotive, marine or aerospace parts, laminates, artificial leather or textile materials, as well as in polychrome printing processes and optical fibers. The thus obtained substrates can also be subjected to laser welding. New bis-oxo-dihydroindolylen-benzodifuranone compounds are also claimed.

Abstract: The invention relates to pigment based on (multiple) coated platelet-shaped substrates comprising an outer layer which is obtained by treatment with a metal oxide/hydroxide and then a phosphate ester, or phosphonate, or a salt thereof, with the proviso that the phosphate ester, or phosphonate do not contain fluorine, to a method for producing said pigments and the use thereof. The outer layer provides a very good photo-stabilisation of the TiO2coated platelet-shaped substrates, such as mica, combined with a good water resistance and an anti-yellowing performance.

Abstract: The present invention relates to novel pigment mixtures comprising at least two different particulate components A and B. The first component A comprises titanium suboxide(s), a titanium oxynitride or a titanium nitride species. Component B particle comprises inorganic, or organic pigments. The titanium suboxide particles display a bluish metallic luster, are new and form a further aspect of the present invention. When combined with particles from component B such as variously coated micas, for example, the bluish or bluish/black metallic color effect from component A leads to special color effects in the various mixtures.

Abstract: The present invention relates to a pigment preparation that comprises, as component (A), 2,4,5,7-tetraminopyrimido[5,4g]pteridine of formula (1), as component (B), a phosphate compound, and optionally, as component (C), further additives, to a process for the production thereof and to the use thereof for colouring high molecular weight organic material and in the production of printing colorants, printing pastes or printing inks.

Abstract: The present invention relates to a pigment formulation comprising a pigment (A) treated with an oligomeric or polymeric amine or encapsulated in a polymer, to processes for the preparation thereof and also to the use thereof in producing coloured plastics or coloured polymer particles.

Abstract: The present invention relates to a pigment preparation that comprises, as component (A), 2,4,5,7-tetraminopyrimido[5,4g]pteridine of formula (1), as component (B), a phosphate compound, and optionally, as component (C), further additives, to a process for the production thereof and to the use thereof for colouring high molecular weight organic material and in the production of printing colorants, printing pastes or printing inks.

Abstract: The present invention relates to pigments whose particles have a length of from 2 ?m to 5 mm, a width of from 2 ?m to 2 mm and a thickness of from 50 nm to 1.5 ?m and a ratio of length to thickness of at least 2:1, the particles having a core of a metallically reflecting material having two substantially parallel faces, the distance between which is the shortest axis of the core, comprising (a), optionally, on one parallel face of the core, an SiOy layer wherein 0.95<y?2.0, (b), on the SiOy layer, an SiOx layer wherein 0.03<x?0.95, and (c), on the SiOx layer, an SiOz layer wherein 0.95<z?2.0, to a method for the production thereof, and to the use thereof in paints, textiles, ink-jet printing, cosmetics, coating compositions, plastics, printing inks and in glazes for ceramics and glass. The pigments without an SiOy layer produce brilliant colours. The pigments with an SiOy layer are opaque and exhibit brilliant colours with a metallic appearance.

Abstract: The invention relates to a coloured pigment of the general formula BiOIaBrbClcMdAe; wherein M is a cation of the alkaline-earth metals, a cation of the earth metals, a cation of the rare earth metals including the lanthanides or a cation of the metals Ge, Sn, Pb, Sb, Ti, Zr, Hf, Mn, Re, Fe, Ru, Os or Zn or a mixture of cations of those metals; A is a fluoride, aquoxide, hydroxide, carbonate, silicate, molybdate, tungstate, sulfate, borate or phosphate anion or a mixture of those anions; a is a number from 0.10 to 0.999; preferably from 0.50 to 0.90; b, c, d and e are numbers from 0 to 0.90; preferably from 0.10 to 0.50; a+b+c+d+e=1 and a+b+c<1; to a process for the preparation thereof and to the use thereof in pigmenting high molecular weight organic materials such as surface-coating compositions, plastics and printing inks.

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: The invention relates to a process for the treatment of particles using a plasma torch and to the particles obtainable by the process. The particles so obtainable may be incorporated into coatings, plastics, paints, printing inks, ceramics, glasses or personal care products.

Abstract: Organic solid solution pigments are prepared and conditioned by treating a mixture of their components, after synthesis but preferably 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 liter 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 present invention relates to pigments whose particles have a length of from 2 ?m to 5 mm, a width of from 2 ?m to 2 mm and a thickness of from 50 nm to 1.5 ?m and a ratio of length to thickness of at least 2:1, the particles having a core of a metallically reflecting material having two substantially parallel faces, the distance between which is the shortest axis of the core, comprising (a), optionally, on one parallel face of the core, an SiOy layer wherein 0.95<y?2.0, (b), on the SiOy layer, an SiOx layer wherein 0.03<x?0.95, and (c), on the SiOx layer, an SiOz layer wherein 0.95<z?2.0, to a method for the production thereof, and to the use thereof in paints, textiles, ink-jet printing, cosmetics, coating compositions, plastics, printing inks and in glazes for ceramics and glass. The pigments without an SiOy layer produce brilliant colours. The pigments with an SiOy layer are opaque and exhibit brilliant colours with a metallic appearance.