Abstract: A dispersion, comprising 0.1 to 25% by weight hydrophobized silica, 8 to 90 wt % of at least one alcohol selected from the group consisting of ethanol, 1-propanol and 2-propanol, 7 to 89 wt % of water, 0 to 30% by weight solvent immiscible with water, and 0.04 to 5 wt % of at least one carboxyvinyl polymer present in neutralized form, can be applied to a surface using a non-drip application method and, by modifying the surface with hydrophobized silica, imparts water-repelling and self-cleaning properties to the surface.

Abstract: This invention relates to megakalsilite platelets, methods of hydrothermally forming said platelets and the megakalsilite platelets obtainable via the disclosed hydrothermal method. More specifically the disclosure describes an improved hydrothermal synthesis of megakalsilite platelets, which are suitable as platelet for interference pigments, and in barrier and flame retardant applications.

Abstract: The present invention relates to a pigment paint for an exterior material and to a method for manufacturing the same. The pigment paint comprises: a flake matrix, a first metal oxide layer coated on the upper portion of the transparent matrix, an oxide layer containing MgO—SiO2 coated on the upper portion of the first metal oxide layer, and a second metal oxide layer coated on the upper portion of the oxide layer. In order to ensure humidity resistance and weather resistance required for a lustrous pigment paint for exterior materials, a cerium layer and an aluminum oxide layer are further coated. Properties such as high luminance, high chromaticity, and high gloss, which could not be achieved using conventional techniques, can be achieved and a pigment paint having a multi-colored pearl luster can be provided.

Abstract: Particles colored with at least one colorant, where the colored glass particles are glass platelets with an average diameter of 1 to 500 ?m and the colorants at least include at least one of metallic nanoparticles and metal oxides. The glass platelets are planar and the colorants are present in a concentration from 1% to 55% by weight, based on the total weight of the colored glass platelets. The disclosure further relates to a method to a method for producing the colored glass particles and to the use thereof.

Abstract: The present invention relates to a method for producing a compound that comprises a pseudolaminar silicate of natural origin, which is at least one clay of the paligorskite-sepiolite group, characterized in that said method comprises the following steps: defibrillating the microfibre bundles of the at least one clay in water; dispersing the defibrillated clay in an organic or inorganic liquid solvent until a stable gel is formed; adding to the dispersion at least one clay-surface-modifying agent; removing the solvent from the dispersion by means of a solid-liquid separation process and/or drying process; and deagglomerating the final compound until a powdered product is obtained. A further object of the present invention is the compound that can be obtained using said method, as well as the use of the compound as an additive or filler in composite polymeric materials in order to enhance the properties thereof, the composite polymeric material likewise being encompassed within the present invention.

Abstract: The present invention relates to pigments based on multicoated flake-form substrates which are distinguished by the fact that at least 8 layers [layers (A)-(H)] are on the substrate, where an SiO2 layer (=layer A) is located directly on the surface of the substrate, and to the use thereof, inter alia, in paints, surface coatings, automobile paints, powder coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, paper, in toners for electrophotographic printing processes, in seed, in greenhouse sheeting and tarpaulins, as absorbers in the laser marking of paper and plastics, and in cosmetic formulations, for the preparation of pigment pastes with water, organic and/or aqueous solvents, for the preparation of pigment compositions and dry preparations.

Abstract: The present invention relates to pigments, comprising a plate-like substrate of perlite which does not contain 3D twin structure particles contained in milled expanded perlite in an amount of greater than 5% by weight, 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: Glass particles colored with at least one colorant, where the colored glass particles are glass platelets with an average diameter of 1 to 500 ?m and the colorants comprise or consist of at least one of metallic nanoparticles and metal oxides. The glass platelets are planar and the colorants are present in a concentration from 1% to 55% by weight, based on the total weight of the colored glass platelets. The disclosure further relates to a method for producing the colored glass particles and to the use thereof.

Abstract: The present invention relates to a complex inorganic color effect pigment material based on multiply coated platelet-shaped substrates wherein one of the layers is a complex inorganic colored pigment. The present color effect pigment may be used in automotive applications, security inks, and decorative coatings.

Abstract: The present invention relates to effect pigments based on thin glass flakes and to a method for the production of such pigments. The resulting pigment can be used in any application for which pearlescent pigments have been heretofore used such as, for example, in plastics, paints, inks, cosmetic formulations, coatings including solvent or waterborne automotive paint systems, powder coatings, inks and agriculture foils.

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 process for preparing, starting from a slag material, a filler for construction materials which contain bitumen or a hydraulic binding agent. The slag used to prepare the filler contains ?-dicalcium silicate. The process comprises the step of removing from the slag material a finer fraction formed by particles of a size between 0 and at least 0.75 mm so as to reduce the ?-dicalcium silicate content of the slag material; and the step of finely milling at least a portion of the remaining coarser fraction of the slag to obtain the filler. The invention also relates to the obtained filler, to the use thereof for preparing construction materials and to concrete or mortar compositions and asphalt compositions containing the filler.

Abstract: The present invention provides mixed metal oxide based special effect pigments that can be incorporated into optically thin binder systems to produce a “metal flake” appearance that is superior to the “metal flake” appearance presently achievable using conventional special effect pigments. Special effect pigments according to the invention comprise at least 10 wt % of mixed metal oxides that exhibit the McConnellite (Cu1+Cr3+O2) crystal structure. Other metallic elements can be incorporated into the crystal lattice structure to alter the appearance effect of the pigments.

Abstract: The invention relates to coated pearlescent pigments, whereby the coating covers the pearlescent pigments and comprises uncured, however, chemically cross-linkable and/or oligomeric and/or polymeric binding agents that can be cross-linked by heat, IR radiation, UV radiation and/or electron rays. The invention also relates to a method for producing the coated pearlescent pigments and to the use thereof. The invention additionally relates to a coating composition and to a coated article.

Abstract: An external additive for a toner for electrophotography which contains oxide fine particles which contain silicon, in which the oxide fine particles have a primary particle diameter of 30 nm to 300 nm in number average, a standard deviation ? of a particle size distribution of the primary particle diameter satisfies a relation of: R/4???R, in which the R expresses the primary particle diameter, the oxide fine particles are substantially spherical having a circularity SF1 defined as equation (1) of 100 to 130 and a circularity SF2 defined as equation (2) of 100 to 125; SF1=(L2/A)×(?/4)×100??equation (1) SF2=(P2/A)×(1/4?)×100??equation (2), in the equations, “L” expresses the absolute maximum length of the oxide fine particles; “A” expresses a projected area of the oxide fine particles; and “P” expresses a maximum perimeter of the oxide fine particles.

Abstract: The present invention relates to pigments, the particles of which generally have a length of from 2 ?m to 5 mm, a width of from 2 ?m to 2 mm, and a thickness of from 20 nm to 2 ?m, and a ratio of length to thickness of at least 2:1, wherein the particles contain a core of SiO2 or a silicon/silicon oxide obtained by heating SiOy flakes with 1.1?y?1.8 in an oxygen-free atmosphere at a temperature of at least 400° C., which core has a narrow distribution of particle sizes and two substantially parallel faces, the distance between which is the shortest axis of the core, and a material layer having a high index of refraction a metal oxide; 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 is directed to pigment compositions, thick film black pigment compositions, conductive single layer thick film compositions, black electrodes made from such black conductive compositions and methods of forming such electrodes, and to the uses of such compositions, electrodes, and methods in flat panel display applications, including alternating-current plasma display panel devices (AC PDP).

Abstract: An effect pigment is constituted by coated laminar platelets in which the platelets are a mixture of different platelet materials, one of which is platy glass or platy aluminum oxide, and in which the pigment exhibits visual homogeneity.

Abstract: Described herein are ceramic colorants consisting of suspensions of particles of nanometric dimensions, their production and use.

Abstract: A composition and method which exhibits enhanced moisture sealing properties, suitable for use with flooring materials, such as concrete, and flooring installations, such as carpeting, wood, tiles, etc. are provided. The composition is preferably non-water-based and can form a non-aqueous barrier coating on the flooring substrate, and most preferably provides a desirable pH and blocks migration of alkaline salts through the substrate.

Abstract: A curable film-forming composition is provided comprising (i) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent; (ii) 10 to 90 percent by weight of a polymer containing a plurality of functional groups reactive with the crosslinking agent; and (iii) 5 to 85 percent by volume of particles having a mean particle size less than 100 nm. The particles comprise 1 to 99 percent by weight of at least one metal oxide wherein the metal is selected from zinc, titanium, cerium, manganese, bismuth, copper, zirconium and iron. A multi-component composite coating composition is also provided, comprising a pigmented basecoat and a clear coat. The basecoat and/or clearcoat may be derived from the curable film-forming composition described above. Also provided are coated substrates in which the curable coating compositions or the multi-component composite coating compositions described above are applied to a substrate and cured to form a cured coating.

Abstract: In a method for the manufacture of a nacreous pigment, in which a multi-layer film is produced by vacuum evaporation coating on a substrate and, after release from the substrate, the particles thus produced are comminuted to pigment particles of a desired size, vapor deposition of a plurality of layers taking place at separate locations within an evacuable container and the substrate being passed along the sources of evaporation, it is provided that at least a backing (A), in particular a silicon oxide layer, and at least a metal oxide layer (B), in particular a titanium oxide layer, are vapor-deposited on the substrate, in particular a circulating metal belt.

Abstract: The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. The present invention also comprises an improved method from making filled and coated paper products. The present invention uses a composition comprising kaolin having a shape factor of at least about 70:1, such as at least about 80:1 or at least about 100:1.

Abstract: The invention relates to multilayered luster pigments based on metallic substrates, which are completely surrounded by a plurality of layers, where these layers comprise at least one layer pack (A) having a colorless dielectric layer of a material with a refractive index n of ?1.8, and a colorless dielectric layer of a material with a refractive index n of >1.8, and a selectively or non-selectively absorbent layer (B), and to a process for their production, and to their use.

Abstract: A spray glaze or opaque composition for coating dental restorations and other surfaces and objects such as hobby ceramics that comprises about 4 to about 50 weight % glaze material, about 5 to about 60 weight % restoration wetting agent, and about 10 to about 90% non CFC propellant. An opaque composition further comprises about 5 to about 30% opaque material.

Abstract: The invention relates to a pigment with a metallic luster, comprising a plate-like non-metallic substrate having a thickness lower an 200 nm, which is entirely coated with a metallic layer.

Abstract: A pigment with a metallic luster, comprising a wafer-like substrate made of aluminium dioxide having a thickness of more than 250 nm and less than 1 ?m, which is fully enveloped by a metal layer.

Abstract: A floor polishing composition containing a film-formable organic high molecular material as the main component, which further contains at least scaly particles.

Abstract: A multilayer effect pigment includes a transparent substrate, a layer of high refractive index material on the substrate, and alternating layers of low refractive index and high refractive index materials on the first layer, the total number of layers being an odd number of at least three, all adjacent layers differing in refractive index by at least about 0.2 and at least one of the layers having an optical thickness which is different from all of the other layers. The resulting multilayer effect pigment is not a quarter-wave stack.

Abstract: A composite pigment is provided with the composite pigment including a dense inorganic material and silica. The pigment composition is characterized by a CTAB surface area of greater than about 20 m2/g; a BET surface area of greater than about 15 m2/g; and a density of greater than about 2.5 g/cm3.

Abstract: The invention relates to particles with an opalescent effect, which have a particle size in the range from 5 &mgr;m to 5000 &mgr;m, comprising monodisperse spheres having a diameter of 50 nm to 2 &mgr;m with a standard deviation of less than 5% in a packed and regularly ordered structure which is three-dimensional in terms of domains and is mechanically stabilized by physical or chemical modification.

Abstract: To provide a high-chromatic flaky pigment with good colorability, and to provide a method for producing the flaky pigment in a simple and inexpensive plant. A high-chromatic flaky pigment of which the entire surface of the flaky substrate coated with a metal oxide having an interference color is further coated with a semi-transparent thin metal film to enhance the interference color of the pigment.

Abstract: The present invention relates to a TiO2 pigment coated sequentially in a wet treatment process with hydrous silica and hydrous alumina both in the presence of citric acid wherein the resulting pigment is coated with from 1 to 4% amorphous alumina based on the weight of the untreated TiO2; from 3 to 6% silica glass based on the weight of the untreated TiO2.

Abstract: Silica composite oxide particles comprising silica and a metal oxide other than silica, the content of the metal oxide other than silica being from 30 to 50 mol %, and a coefficient of variation in the particle diameter being not larger than 30%. The silica composite oxide particles contain metal oxides other than silica in an amount of not smaller than 30 mol %, which could not be produced thus far, and feature excellent spherical shape and excellent monodispersion property.

Abstract: The invention relates to a transparent medium comprising multilayer pigments having angle-selective reflection or transmission properties and/or absorption properties, and to their use, in particular in transparent thermal insulation systems (TTIs).

Abstract: A filler comprising a substantially amorphous cluster comprising non-heavy metal oxide particles and heavy metal oxide. The filler can be mixed into a hardenable resin to provide radiopaque dental materials having desirable strength and aesthetic character.

Abstract: Multilayer pearl lustre pigment on the basis of a platelet-shaped substrate comprising a material of low refractive index in the range from 1.35 to 1.8, which comprises at least (i) one first layer comprising a material having a refractive index of more than 1.8, (ii) optionally, a second layer comprising a material of low refractive index in the range from 1.35 to 1.8, (iii) a semitransparent metal layer which is applied to the substrate or to the layers (i) or (ii), and (iv) if desired, an aftercoating, the substrate being platelet-shaped silicon dioxide, aluminium oxide, boron oxide or magnesium fluoride.

Abstract: One aspect of the invention relates to a brown pigment composition with excellent weathering resistance containing iron oxide, chromium oxide, and one or more alumina and/or silica components. Another aspect of the invention relates to a method of making a brown pigment involving combining iron oxide, chromium oxide, and one or more alumina and/or silica components to form a mixture and heating the mixture to provide brown pigment particles. Yet another aspect of the invention relates to a plastic composition containing a major amount of a plastic material and a minor amount of a brown pigment composition containing iron oxide, chromium oxide, and one or more alumina and/or silica components.

Abstract: The invention relates to multilayered luster pigments based on metallic substrates, which are completely surrounded by a plurality of layers, where these layers comprise at least one layer pack (A) having a colorless dielectric layer of a material with a refractive index n of ≦1.8, and a colorless dielectric layer of a material with a refractive index n of >1.8, and a selectively or non-selectively absorbent layer (B), and to a process for their production, and to their use.

Abstract: The invention relates to a novel method of enameling substrates comprised of glass or vitroceramic material, according to which method the enamel composition contains graphite as a component, with the aim of improving the mechanical properties of the enameled substrate and/or conferring anti-adhesive properties on the composition. The invention also relates to the composition, and the enameled substrates obtained.

Abstract: In a method of manufacturing a gold containing pigment, a vaporizable gold compound, a vaporizable compound of another metal, which includes an oxide or a nitride with a melting temperature above the melting temperature of gold, and a reaction gas consisting of a mixture of argon and oxygen are introduced into a first microwave plasma, whereby cores covered with gold clusters are formed from the oxide or nitride and the gold cluster covered cores are subjected to a tempering process at 150° C. to 300° C. for causing coloration of the gold cluster covered oxide or nitride cores.

Abstract: The present invention relates to pigment mixtures containing at least two components component A being Al2O3 flakes coated with one or more metals, metal oxides and/or metal sulfides and component B being acicular or spherical colorants, and to their use in particular in varnishes, paints, printing inks, powder coating materials, plastics and cosmetic formulations.

Abstract: A process is disclosed for coloring building materials with inorganic pigments in the form of microgranulates. The granulates comprise one or more pigments and one or more compounds selected from boron, aluminum, silicon, titanium, zinc and tin.

Abstract: In a method of manufacturing a gold containing pigment, a vaporizable gold compound, a vaporizable compound of another metal, which includes an oxide or a nitride with a melting temperature above the melting temperature of gold, and a reaction gas consisting of a mixture of argon and oxygen are introduced into a first microwave plasma, whereby cores covered with gold clusters are formed from the oxide or nitride and the gold cluster covered cores are subjected to a tempering process at 150° C. to 300° C. for causing coloration of the gold cluster covered oxide or nitride cores.

Abstract: The present invention provides a process for the production of hydrophobic inorganic oxide products which comprises reacting the inorganic oxide particles with organohalosilanes, preferably organochlorosilanes, to produce hydrophobic organosilane coated inorganic oxides. It is preferred that the organohalosilane compounds be reacted with the inorganic oxide particles in an aqueous slurry and subjected to intense mixing. The inorganic oxide pigments prepared by the processes of this invention have essentially quantitative retention of the organosilanes and contain no adsorbed aldehydes on their surface. The by-products produced in the preferred embodiments of the invention are innocuous salts, which are environmentally safe and readily disposable.

Abstract: A description is given of coated inorganic pigments comprising an organic pigment which has a coating, prepared by the sol-gel process from glass-forming components and densified to form a xerogel or glass, having a layer thickness of at least 0.8 .mu.m. These pigments are prepared by spray drying a sol-pigment dispersion, followed if desired by thermal densification of the xerogel layer to form a glass layer. The coated pigments are suitable for producing enamels and moldings.

Abstract: Multilayer interference pigment consisting of a central, absorbing layer and alternating layers of a material of low refractive index and of a metal or of a material of high refractive index either side of the central layer, the material of low refractive index preferably being acrylate and the metal being aluminium or chromium. The absorbing layer consists of a coating system which comprises carbon black or color-imparting absorption pigments.

Abstract: A silica-metal oxide particulate composite comprising silica agglomerates having voids formed by random stacking of scaly silica primary particles, and metal oxide particulates supported on the surfaces, and the inner surfaces in the voids, of the silica agglomerates.

Abstract: Improved coated inorganic pigments having a first coating of Al.sub.2 O.sub.3, SiO.sub.2, or optionally other oxide such as a source of P.sub.2 O.sub.5, or mixtures thereof, an optional coating of ZrO.sub.2, SnO.sub.2, TiO.sub.2, SiO.sub.2, CeO.sub.2 or mixtures thereof, and a final coating of Al.sub.2 O.sub.3 which exhibit good durability, dispersibility, and optical properties in plastic or paint compositions are disclosed. Also disclosed is a process whereby an aqueous slurry of an inorganic pigment is milled to achieve a particular particle size distribution, a first coating of Al.sub.2 O.sub.3, SiO.sub.2, or optionally other oxide such as a source of P.sub.2 O.sub.5, or mixtures thereof is precipitated onto the pigment material within a first pH range, an optional amount of ZrO.sub.2, SnO.sub.2, SiO.sub.2, TiO.sub.2, CeO.sub.2 or mixtures thereof is added to the aqueous slurry within a second pH range to obtain an optional coating over the first coating, and a final coating of Al.sub.2 O.sub.

Abstract: Goniochromatic luster pigments based on multiply coated, high refractive, nonmetallic, platelet-shaped substrates which are at least partially transparent to visible light, comprising at least one layer packet ofA) a colorless coating having a refractive index n.ltoreq.1.8 andB) a reflecting, selectively or nonselectively absorbing coating which is at least partially transparent to visible light,and also, if desired, additionallyC) an outer protective layer,and their use for coloring paints, inks, including printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations.