| Patent application number | Description | Published |
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| 20090107293 | Apparatus and Method for Producing Metal Flakes From the Melt - The present invention relates to a method and an apparatus for forming flakes, especially metal flakes. The method comprises producing a heated stream of molten material, feeding the stream in a substantially vertically downward direction, receiving the downwardly directed stream and forming flakes therefrom, and effecting a change in the temperature of the stream subsequent to the production thereof whereby flakes of a desired thickness are obtained. The present invention is applicable to any metal which melts when heated and is capable of being formed into flakes. Examples of metals are Al, Cu, Mo, V, Ag, Cr, Zr, Nb, Ni, Fe, Co, Ti, Au, Pd, W, Hf, Rh, Ir, Pt, Cd or alloys thereof, such as chromium-nickel, iron-nickel, iron-chromium and nickel-cobalt, wherein Cu, Ag, Ti, or Al, or alloys thereof are preferred and Al, or Ag, or alloys thereof are most preferred. | 04-30-2009 |
| 20090214606 | ANTIMICROBIAL POROUS SILICON OXIDE PARTICLES - The present invention relates to antimicrobial, porous particles, especially porous, non-platelet-like SiO2 particles, comprising an organic, or inorganic antimicrobial compound, or composition, with the proviso that the porous particles are not porous SiOz flakes, wherein 0.70| 08-27-2009 | |
| 20090280326 | Process for the Treatment of Metal Coated Particles - The present invention relates to a process for the thermal treatment of metal coated particles, to the particles obtainable by the process and to their use for the manufacture of printable electronics, or for EMI shielding. | 11-12-2009 |
| 20090311209 | Interference Pigments on the Basis of Glass Flakes - The present invention relates to pigments, comprising a plate-like substrate of glass having an average thickness of <1 μm, especially of from 20 nm to 400 nm, and (a) a dielectric material, especially a metal oxide, having a high index of refraction; 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. | 12-17-2009 |
| 20100003520 | POROUS INORGANIC MATERIALS OF SILCON AND OXYGEN - The present invention relates to a process for the production of porous inorganic materials or a matrix material containing nanoparticles with high uniformity of thickness and/or high effective surface area and to the materials obtainable by this process. By the above-mentioned process materials with a defined thickness in the region of ±10%, preferably ±5% of the average thickness are available. | 01-07-2010 |
| 20100011992 | PIGMENT MIXTURES - 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. | 01-21-2010 |
| 20100062244 | Process for Preparing Flake-Form Particles - The present invention relates to a process for the production of plane-parallel platelets, comprising the steps: a) deposition of a separating agent I, which is dissolvable in water, onto a carrier to produce a separating agent layer, b) vapour-deposition of a separating agent II, which is not dissolvable in water, onto the separating agent layer of step a), c) vapour-deposition of at least one product layer onto the separating agent layer of step b), d) vapour-deposition of a separating agent II, which is not dissolvable in water, onto the product layer of step c), e) dissolution of the separating agent layer of step a) in water and production of a suspension in which the at least one product layer is present in the form of plane-parallel platelets, the top surface and the bottom surface, but not the side surfaces of which are covered by the separating agent II, and 0 dissolution of the separating agent layer of steps b) and d) in a solvent and production of a suspension in which the product, comprising at least one layer, is present in the form of plane-parallel platelets. | 03-11-2010 |
| 20100075031 | METHOD OF FORMING A (RUTILE) TITANIUM DIOXIDE-COATED PLATELET-LIKE PIGMENT - The invention relates to a method of forming (rutile) titanium dioxide-coated platelet-like pigments in which hydrous titanium dioxide is deposited on platelet-like particles followed by calcining, comprising (a) effecting the titanium deposit in the presence of an α-hydroxy carboxylic acid, especially glycolic acid, or oxalic acid, and an amino acid, especially glycine, alanine, valine, aspartic acid (α-, β- and γ-form); or an amino acid; to the pigments obtained by the method and the use thereof. The method can work in the absence of exogenous metal and Ti(III). The rutile TiO | 03-25-2010 |
| 20100192802 | REINFORCED METAL OXIDE FLAKES FOR EFFECT PIGMENTS - 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. | 08-05-2010 |
| 20100203093 | INTERFERENCE PIGMENTS ON THE BASIS OF PERLITE FLAKES - 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. | 08-12-2010 |
| 20100218703 | OPTICAL VARIABLE EFFECT PIGMENTS - 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. | 09-02-2010 |
| 20100240892 | ELECTROLUMINESCENT DEVICE - Disclosed are electroluminescent devices that comprise organic layers that contain certain organic compounds containing one ore more pyrimidine moieties. The organic compounds containing one ore more pyrimidine moieties are suitable components of blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in for example mobile phones, televisions and personal computer screens. | 09-23-2010 |
| 20100322981 | BRIGHT INTERFERENCE PIGMENTS - The present invention relates to (interference) pigments comprising a plate-like substrate, a layer of SnO | 12-23-2010 |
| 20110092632 | POROUS INORGANIC MATERIALS CONTAINING POLYMER ADDITIVES - The present invention relates to SiO | 04-21-2011 |
| 20110105676 | PROCESS FOR PREPARING PLATELET-LIKE PIGMENTS COMPRISING A NITROGEN DOPED CARBON COATING - The invention relates to a process for preparing platelet-like pigments comprising a core and at least one coating layer consisting essentially of a compound having from 60 to 95% by weight of carbon and from 5 to 25% by weight of nitrogen, the balance to 100% being selected from elements of the group consisting of hydrogen, oxygen and sulfur, comprising the steps of: (a) suspending plateletlike particles in a liquid; (b) adding one or more polymers containing nitrogen and carbon atoms, or (a1) suspending one or more polymers containing nitrogen and carbon atoms in a liquid; (b1) adding the plateletlike particles, (c) effecting a polymeric coating layer to be formed on the surface of said plateletlike particles from the polymers added at step (b), or (a1); (d) isolating said plateletlike particles having said polymeric coating layer from the suspension; and (e) heating said plateletlike particles having said polymeric coating layer to a temperature of from 100° C. to 1000° C. in a gaseous environment, to the pigments obtained by the method and the use thereof. It is possible by the process of the present invention to obtain very regular, homogeneous and continuous coatings in an extremely wide range of thicknesses. | 05-05-2011 |
| 20110118384 | PEARLESCENT PIGMENTS COATED WITH A METAL OXIDE/HYDROXIDE LAYER AND AN ACRYLIC COPOLYMER - The invention relates to pearlescent pigments comprising a platelet-shaped substrate, a metal oxide coating comprising a metal oxide layer having a refractive index of greater than 1.8 and a protective layer, wherein the protective layer comprises a metal oxide/hydroxide layer and optionally boroxide, applied to which is an organic aftercoat of an acrylic copolymer, to a method for producing said pigments and the use thereof. The outer layer provides a very good photo-stabilisation of the TiO | 05-19-2011 |
