摘要:
A metallic effect pigment including a metallic, corrosion resistant reflective core of reflectivity from 40% to 80%; having deposited thereupon at least one dielectric coating layer formed of at least one metal oxide, the metal oxide layer having been formed by deposition on the core by hydrolysis of a hydrolyzable metal salt in an strongly acidic aqueous medium, and thereafter full transformation into the oxide by calcination.
摘要:
The present invention relates to pigments with improved and adjustable sparkling effect comprising A) a plate-like substrate of perlite coated with (a) dielectric material, and/or metal; and B) a plate-like substrate of mica, coated with (a) dielectric material, and/or a metal; and 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 show an improved sparkle effect; in particular an attractive high sparkle intensity.
摘要:
The present invention is directed to a process for the preparation of a plane-parallel structure (a platelet-shaped body, or flake), comprising at least one dielectric layer consisting of one or more oxides of a metal selected from groups 3 to 15 of the periodic table, which comprises the steps of: (a) applying a thin film of the dielectric material on a flexible belt, by passing the belt through an aqueous solution of a fluorine scavenger and one or more fluorine containing metal complexes which are the precursors of the desired metal oxide coating; and subjecting said solution to microwave radiation to deposit the metal oxide onto said flexible belt, wherein step (a) can optionally be repeated using different fluorine containing metal complexes to produce one or more metal oxide layers or a gradient of concentration of 2 different metal oxides across the thickness; (b) separating the resulting layer from the flexible belt as plane-parallel structures.
摘要:
The present invention relates to SiOz flakes, especially porous SiOz flakes, wherein 0.70≦z≦2.0, especially 0.95≦z≦2.0, comprising a polymer additive in the pores, which provides enhanced (long term) efficacy. Further aspects of the invention are a process for their preparation and a polymer composition containing such SiOz flakes.
摘要:
A process for the preparation of a plane-parallel structure (a platelet-shaped body, or flake), comprising at least one dielectric layer consisting of oxides of one or more metal selected from groups 3 to 15 of the periodic table, which method comprises subjecting one or more precursors of one or more desired metal oxides and an acidic catalyst to microwave radiation to form a metal oxide layer on a substrate; and separating the resulting metal oxide layer from the substrate.
摘要:
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.
摘要:
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 abovementioned process materials with a defined thickness in the region of ±10%, preferably ±5%, of the average thickness are available.
摘要:
The present invention relates to an aqueous ink composition for the ink-jet printing method, which comprises a) metallic or non-metallic, inorganic platelet-shaped particles having an average particle diameter of at least 2 um, b) a dispersant (dispersing agent) and c) a binder. The ink compositions according to the invention are able to yield prints having a metallic appearance or prints having a colour that changes according to the viewing angle (“flop effect”).
摘要:
The present invention relates to pigments, the particles of which generally have a length of from 2 μm to 5 mm, a width of from 2 μm to 2 mm, and a thickness of from 20 nm to 2 μm, and a ratio of length to thickness of at least 2:1, wherein the particles contain a core of SiOy with 0.70≦y≦1.8, especially 1.40≦y≦1.8, having two substantially parallel faces, the distance between which is the shortest axis of the core, comprising (a) a material, especially a metal oxide, having a high index of refraction; or (a) 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.
摘要翻译:本发明涉及颜料,其颗粒通常具有2μm至5mm的长度,2μm至2mm的宽度和20nm至2μm的厚度,并且其长度与 至少2:1的厚度,其中所述颗粒包含具有0.70≤y≤1.8的芯,特别是1.40 <= y <= 1.8,具有两个基本上平行的面,所述距离 在其之间是芯的最短轴线,包括(a)具有高折射率的材料,特别是金属氧化物; 或(a)薄的半透明金属层; 用于油漆,喷墨印刷,染色纺织品,着色涂料(油漆),印刷油墨,塑料,化妆品,陶瓷和玻璃的釉料的生产过程。