Abstract: Process for the preparation of modified zinc oxide nanoparticles, which comprises reacting zinc oxide nanoparticles, which are dissolved in a solvent, in the presence of ammonia or amines with a tetraalkyl orthosilicate and optionally with an organosilane, with the proviso that the reaction takes place at a content of less than 5% by weight of water, based on the total amount of solvent and water. Modified zinc oxide nanoparticles which have Si—O-alkyl groups and are soluble in organic solvents, obtainable by this process for the preparation. Liquid or solid formulations which comprise modified ZnO nanoparticles. Inanimate organic materials, for example plastics or coatings, which comprise modified ZnO nanoparticles. Method of stabilizing inanimate organic materials against the effect of light, free radicals or heat, where modified ZnO nanoparticles, which optionally comprise UV absorbers and/or stabilizers as further additives, are added to the materials.

Abstract: A method of finishing an organic pigment by dry-comminuting said pigment in the presence of a sulfonato-functional condensation product of an arylsulfonic acid and at least one aliphatic aldehyde having 1 to 6 C atoms as crystallization modifier, dispersing the resulting mixture of pigment and crystallization modifier in mineral acid, and swelling the pigment in the presence of the crystallization modifier in mineral acid.

Abstract: A method of finishing an organic pigment by dry-comminuting said pigment in the presence of a sulfonato-functional condensation product of an arylsulfonic acid and at least one aliphatic aldehyde having 1 to 6 C atoms as crystallization modifier, dispersing the resulting mixture of pigment and crystallization modifier in mineral acid, and swelling the pigment in the presence of the crystallization modifier in mineral acid.

Abstract: A method of finishing an organic pigment that involves dissolving or dispersing the pigment in a mineral acid and crystallizing the pigment from the solution or dispersion by mixing with an aqueous diluent in the absence of a sulfonato-functional condensation product of an arylsulfonic acid and an aliphatic aldehyde as crystallization inhibitor, which comprises ripening the crystallized organic pigment in the presence of a surfactant or in the presence of a pigment solubility enhancer in aqueous suspension.

Abstract: Particles obtainable by the reaction of compounds which can form inorganic nanoparticles with organic molecules which comprise functional groups, and the use of these particles for the finishing of inanimate organic polymers, in particular for stabilization against the effect of UV radiation. Liquid formulations which comprise such particles, and also methods for the preparation of the particles and their liquid formulations. Powders which are obtainable from the abovementioned liquid formulations and also liquid formulations which are obtainable by redispersing the powders. Use of nanoparticles with organic light-absorbing compounds attached to the surfaces thereof for stabilizing polymers against the effect of light, free radicals or heat.

Abstract: The invention relates to a methods finishing an organic pigment by dissolving or dispersing the pigment in a mineral acid and crystallizing the pigment from the solution or dispersion by mixing with an aqueous diluent in the presence of a crystallization modifier constituted by a sulfonate-functional condensation product of a naphthalenesulfonic acid and at least one aliphatic aldehyde having 1 to 6 carbon atoms, and then isolating the pigment as a solid, wherein the crystallization modifier is present in the aqueous diluent.

Abstract: The invention relates to a method of finishing an organic pigment that involves dissolving or dispersing the pigment in an aqueous solvent or a mineral acid and crystallizing the pigment from the solution or dispersion in the presence of a crystallization modifier, and subsequently isolating the pigment as a solid, wherein the crystallization modifier is a condensation product containing sulfonate groups and formed from at least one hydroxyarylsulfonic acid and/or at least one hydroxydiaryl sulfone compound and at least one aliphatic aldehyde having 1-6 C atoms, optionally urea, and an alkali metal sulfite if appropriate, or is a mixture of such condensation products.

Abstract: Use of high functionality hyperbranched polycarbonates obtainable by a) preparing one or more different condensation products (K) either by a1) reacting at least one organic carbonate (A) of the general formula RO[(CO)O]nR with at least one aliphatic, aliphatic/aromatic or aromatic alcohol (B) having at least 3 OH groups by elimination of alcohols ROH, where each R is independently a straight chain or branched aliphatic, aromatic-aliphatic or aromatic hydrocarbyl radical having 1 to 20 carbon atoms and the R radicals may also be bonded to each other to form a ring comprising the grouping —O[(CO)O]n—, where n is an integer from 1 to 5, or a2) reacting phosgene, diphosgene or triphosgene with the aliphatic, aliphatic/aromatic or aromatic alcohol (B) to liberate hydrogen chloride, the quantitative ratio of the alcohols (B) to the carbonates (A) or to the phosgenes in the reaction mixture being so chosen that the condensation products (K) comprise on average either one carbonate or carbamoyl chloride group and mo

Abstract: A method of automated preparation and characterization of liquid multicomponent systems comprising at least two, preferably three components comprises the automated preparation of a mixture by combining at least two, preferably three components in a vessel, at least one component being metered in an automated fashion into the vessel, and the automated homogenization of the mixture with subsequent automated measuring and evaluation. The apparatus for conducting this method comprises at least one metering station, one closing station, one homogenizing station, one measuring station for determining formulation properties, and one evaluation unit.

Abstract: A method of automated preparation and characterization of liquid multicomponent systems comprising at least two, preferably three components comprises the automated preparation of a mixture by combining at least two, preferably three components in a vessel, at least one component being metered in an automated fashion into the vessel, and the automated homogenization of the mixture with subsequent automated measuring and evaluation. The apparatus for conducting this method comprises at least one metering station, one closing station, one homogenizing station, one measuring station for determining formulation properties, and one evaluation unit.

Abstract: The present invention relates to novel cholesteric layered materials having the layer sequence A1/B/A2, where A1 and A2 are identical or different and each comprise at least one cholesteric layer, and B is at least one interlayer separating the layers A1 and A2 from one another, wherein layer B is an adhesive layer; cholesteric multilayered pigments which can be produced therefrom; a process for their production, and their use.

Abstract: A platelet-shaped cholesteric multilayer pigment which comprises the layer sequence A1/B/A2 where A1 and A2 are identical or different and each comprise at least one cholesteric layer, and B is at least one interlayer which separates the layers A1 and A2 from one another and which absorbs all or some of the light transmitted by the layers A1 and A2, processes for its preparation, and its use are all described.

Abstract: The present invention relates to novel cholesteric layered materials having the layer sequence A1/B/A2, where A1 and A2 are identical or different and each comprise at least one cholesteric layer, and B is at least one interlayer separating the layers A1 and A2 from one another, wherein layer B is an adhesive layer; cholesteric multilayered pigments which can be produced therefrom; a process for their production, and their use.

Abstract: A platelet-shaped cholesteric multilayer pigment which comprises the layer sequence A/B/ and if desired C, where A and C independently of one another are at least one partly light-permeable absorption layer, and B is at least one cholesteric layer.

Abstract: Improved cholesteric special-effect layers are obtainable by comminuting cholesteric layers. These cholesteric layers are produced by applying at least one layer of a reactive, pourable cholesteric mixture to a moving substrate, by casting, and forming a solid cholesteric layer.