Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being SiO2 flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.

Abstract: The present invention relates to a pigment preparation comprising a mixture of coated and/or uncoated SiO2 flakes, one or more special-effect pigments, and a phosphate derivative, and to the use thereof, especially in printing inks.

Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being Sio2 flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.

Abstract: The invention relates to a platelet-shaped pigment having high luster and high covering power or high transparency, consisting of a transparent, inorganic, platelet-shaped matrix which can contain an additional constituent, characterized in that the additional constituent is a soluble or insoluble colorant and in that the matrix is coated at least on one side with one or more thin, transparent or semi-transparent reflective layers of metal oxides or metals to achieve the luster.

Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being SiO2 flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.

Abstract: The invention relates to a platelet-like pigment having high lustre and high covering power or high transparency, consisting of a transparent, inorganic, platelet-like matrix which can contain an additional constituent, characterised in that the additional constituent is a soluble or insoluble colorant and in that the matrix is coated at least on one side with one or more thin, transparent or semi-transparent reflective layers of metal oxides or metals to achieve the lustre.

Abstract: A colored interference pigment having a platelet-shaped layer as substrate, a coating of at least one metal oxide layer and, optionally, a further layer, at least two layers comprising or consisting of colorants.

Abstract: Multilayer interference pigment consisting of plateletlike titanium dioxide as carrier material, coated with alternating layers of metal oxides of low and high refractive index, the difference in the refractive indices being at least 0.1, which is obtainable by solidification and hydrolysis of an aqueous solution of a thermally hydrolyzable titanium compound on a continuous belt, detachment of the resulting coat, coating of the resulting titanium dioxide platelets, with or without drying in between, by a wet method with, alternately, a metal oxide hydrate of high refractive index and a metal oxide hydrate of low refractive index by hydrolysis of the corresponding, water-soluble metal compounds, separation, drying and, if desired, calcining of the material obtained.

Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being SiO2 flakes coated with one or more metal oxides and/or metals and component B being platelet-shaped, acicular or spherical colorants or fillers, and to their use in particular in varnishes, paints, printing inks, powder coating materials, plastics and cosmetic formulations.

Abstract: The present invention relates to a pigment preparation comprising a mixture of coated and/or uncoated SiO2 flakes, one or more special-effect pigments, and a phosphate derivative, and to the use thereof, especially in printing inks.

Abstract: Multilayer interference pigment consisting of plateletlike titanium dioxide as carrier material, coated with alternating layers of metal oxides of low and high refractive index, the difference in the refractive indices being at least 0.1, which is obtainable by solidification and hydrolysis of an aqueous solution of a thermally hydrolysable titanium compound on a continuous belt, detachment of the resulting coat, coating of the resulting titanium dioxide platelets, with or without drying in between, by a wet method with, alternately, a metal oxide hydrate of high refractive index and a metal oxide hydrate of low refractive index by hydrolysis of the corresponding, water-soluble metal compounds, separation, drying and, if desired, calcining of the material obtained.

Abstract: Colored pearl luster pigment consisting of a core of platelet shaped titanium dioxide and one or more layers of other metal oxides or metal oxide hydrates obtainable by solidifying an aqueous solution of a thermally hydrolyzable titanium compound on a continuous belt, detaching the resulting layer, coating the resulting titanium dioxide platelets, with or without drying in between, with one or more other metal oxides or metal oxide hydrates, for example Fe2O3, Fe3O4, FeOOH or Cr2O3, by a wet method, separating, drying and, if desired, calcining the material obtained.

Abstract: Multilayer interference pigment consisting of plateletlike titanium dioxide as carrier material, coated with alternating layers of metal oxides of low and high refractive index, the difference in the refractive indices being at least 0.1, which is obtainable by solidification and hydrolysis of an aqueous solution of a thermally hydrolysable titanium compound on a continuous belt, detachment of the resulting coat, coating of the resulting titanium dioxide platelets, with or without drying in between, by a wet method with, alternately, a metal oxide hydrate of high refractive index and a metal oxide hydrate of low refractive index by hydrolysis of the corresponding, water-soluble metal compounds, separation, drying and, if desired, calcining of the material obtained.

Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being SiO.sub.2 flakes coated with one or more metal oxides and component B being one or more electrically conductive pigments, and to their use in varnishes, paints, printing inks and plastics.

Abstract: Plateletlike titanium dioxide reduction pigment consisting of titanium dioxide, titanium suboxides and, if desired, a further metal oxide or titanium oxynitride, obtainable by solidifying an aqueous solution of a thermally hydrolysable titanium compound on a continuous belt, detaching the resulting coat, coating the resulting titanium dioxide platelets, with or without drying in between, with further titanium dioxide by a wet method, drying and, if desired, calcining the material, and treating the material obtained with a reducing agent in a nonoxidizing gas atmosphere.

Abstract: Single-layer or multilayer titanate-containing pearlescent pigments comprising iron titanate and, if appropriate, titanium oxide and/or iron oxide, which is obtainable by solidification of an aqueous solution of a thermally hydrolysable titanium compound on a continuous belt, detachment of the layer formed, coating of the resulting titanium dioxide platelets, after or without intermediate drying, with iron oxide in a wet process, and drying and calcining of the resulting material in an oxidizing or reducing gas atmosphere at not less than 500.degree. C., the layer thicknesses of the titanium dioxide layer and iron dioxide layer being adjusted such that either the stoichiometric ratio between iron oxide and titanium dioxide necessary for the formation of pseudo-brookite or ilmenite is obtained or an excess of iron oxide or titanium dioxide is present.

Abstract: Plateletlike, substrate-free titanium dioxide pigment obtainable by solidifying an aqueous solution of a thermally hydrolyzable titanium compound on a continuous belt, detaching the resulting layer, coating the resulting titanium dioxide platelets, with or without drying in between, with further titanium dioxide by a wet method, and separating off, drying and calcining the material obtained.

Abstract: A thermochromic effect pigment comprising a thermochromic liquid crystal material encapsulated with a polymer and coated with one or more inorganic metal oxides or nearly insoluble metal salts selected from Al.sub.2 O.sub.3, SnO.sub.2, ZrO.sub.2, TiO.sub.2, CaO, SiO.sub.2, ZnO, MgO or BaSO.sub.4. The pigment is stable in solvent-based formulations and can be used as a colorant in the form of an aqueous suspension or as a powder in lacquer compositions, plastic compositions, dyed filter compositions, dyed glass compositions, dyed cosmetic compositions, printing ink compositions, and in hair coloring agents.

Abstract: The present invention relates to surface-modified pigments based on flaky substrates having improved settling and redispersing characteristics and to the preparation and use thereof.

Abstract: The invention relates to a coated system which has a chemically and mechanically very stable surface coating of high aesthetic attraction which has a specular and optionally iridescent color and/or a body color on a metal, ceramic or quartz glass substrate provided with an enamel or glaze coating, the surface coating being obtainableby single or repeated application of aqueous metal oxide sols,by subsequently drying and optionally igniting the metal oxide sol coating at each application step,the metal oxide sols having a mean particle size of between 5 and 200 nm,ignition being carried out at least once after completion of the final application step and at temperatures higher than 700.degree. C. and below the softening point of the substrate,the metal oxide coating on the glaze or enamel coating having, after ignition, a refractive index at least 0.5 higher than the refractive index of the enamel or glaze coating, andthe total thickness of the ignited metal oxide coatings being less than 500 nm.