Abstract: A pearlescent pigment includes a ceramic flake coated with a metal oxide. The metal oxide is, preferably, an oxide of titanium, iron, tin, chromium1, zirconium or a combination thereof, and the refractive index of the metal oxide coating is preferably at least 0.5 higher than that of the ceramic flake. The pearlescent pigment may be included in a coating applied to a metallic or plastic surface to give the surface a lustrous or pearlescent optical effect.

Abstract: Disclosed herein is a method of calcining particulate material, such as kaolin. The method comprises providing a feed mixture comprising a particulate material, such as hydrous kaolin, wherein at least a portion of the particulate feed is coated with a liquid fuel. The method further comprises heating the particulate feed mixture to calcine the particulate feed and burn the liquid fuel to form a calcined product. The liquid fuel coating can act as a secondary, indirect heat source for calcining. The overall calcining temperatures and/or times can be reduced as a result of adding the liquid fuel.

Abstract: In one embodiment, an aqueous dispersion liquid contains at least one particles selected from tungsten oxide particles and tungsten oxide composite particles. A mean primary particle diameter (D50) of the particles is in the range of 1 nm to 400 nm. In the aqueous dispersion liquid, concentration of the particles is in the range of 0.1 mass % to 40 mass %, and pH is in the range of 1.5 to 6.5. The aqueous dispersion liquid excels in dispersibility of particles and capable of maintaining good liquidity for a long period.

Abstract: A gold color metallic pigment with coating of manganese oxide nanoparticles and a method to produce the gold color pigment are described. The disclosed coated pigment includes a platelet shaped substrate, a passivation layer applied to the substrate with surface anchoring groups and a manganese oxide nanoparticles layer. The coated pigment further includes an encapsulation layer or a surface property modification layer. The disclosed method provides pigments that exhibit brilliant gold color and a highly desirable appearance of real gold without the environmental issues causing by heavy metals.

Abstract: Fillers containing silica-zirconia nanoclusters are disclosed. The fillers may be prepared by mixing a sol of silica nanoparticles with a sol of preformed, crystalline nanozirconia particles. The fillers provide desirable optical properties, such as opalescence, and are useful in dental compositions.

Abstract: It is an object of the present invention to provide a process of manufacturing calcium carbonate-containing slurries, wherein said calcium carbonate-containing slurries are prepared by adding one or more zirconium compounds, and possibly one or more further phosphate-free additives acting as dispersing and/or grinding aid agents. An other object of the invention lies in calcium carbonate-containing slurries thus obtained, and dry calcium carbonate mineral pigments resulting from the drying of such slurries. A further object of the invention is the use of such slurries and such dry mineral pigments in paper manufacturing, plastic coatings, as fillers for plastics or for aqueous paint compositions and the like. Papers, paints and plastics containing such slurries and such dry pigments are also an object of the present invention.

Abstract: A coated particulate solid composition includes a particulate inorganic solid having deposited on its surface a treatment oil comprising lipids. The particulate inorganic solid can include a base particle of titanium dioxide, zinc sulfide, zinc oxide, iron oxide, lead oxide, aluminum oxide, silicon dioxide, zirconium oxide and/or chromium oxide. The treatment oil is optionally a vegetable oil. The treatment oil containing lipids optionally contains glycerides such as triglycerides, and diglycerides, and can contain phospholipids. In one embodiment, the coated particulate solid composition includes particulate titanium dioxide, wherein the treatment oil provides increased bulk density, and enhanced dispersibility in plastic as well as improved lacing resistance.

Abstract: The present invention relates to inorganic spherical pigments which are based on spherical particles having a particle diameter of 0.1-100 ?m and are coated on the surface with agglomerates selected from the group ZrO2, ZnO, Al2O3, TiO2, Fe2O3, Fe3O4, FeOOH and BaSO4 or mixtures thereof, and are optionally coated with a further layer (2nd layer) comprising a metal oxide, lake or Berlin Blue, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, in cosmetic formulations, as tracer, as filler and for the preparation of pigment preparations and dry preparations.

Abstract: A process for producing an inorganic doped-zircon pigment includes calcining a base mixture comprising raw plasma-dissociated zircon, a chromophore, and at least one mineralizer, to produce a raw pigment. The raw pigment is refined to obtain an inorganic doped-zircon pigment.

Abstract: A polymer additive for improving the reheat characteristics of a polymer or polymeric composition comprises an inorganic material which is such that a 2.5 mm thick polyethylene terephthalate plaque incorporating the inorganic material has, when tested, an absorption ratio of less than 0.9, wherein the absorption ratio is either the ratio of A1/A2 or the ratio A1/A3, wherein: A1 is the maximum absorption between 400 nm and 550 nm; A2 is the maximum absorption between 700 to 1100 nm; A3 is the maximum absorption between 700 to 1600 nm. Preferred inorganic materials are titanium nitride, indium tin oxide and lanthanum hexaboride.

Abstract: The present invention relates to (interference) pigments comprising a plate-like substrate, a layer of SnO2, and/or a layer of a metaloxide, which is selected from Fe2O3, TiO2, ZrO2 and/or HfO2, said layer(s) being doped with Mo and/or W, or pigments comprising a plate-like substrate, a layer of a metal oxide, which is selected from Fe2O3, TiO2, ZrO2 and/or HfO2, said layer(s) being doped with Nb and/or Ta, a method of producing the (interference) pigments and their use in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings, printing inks, plastics, cosmetics, glazes for ceramics and glass. The pigments of the present invention have very bright color and show color flop.

Abstract: There is provided colloidal silica particles comprising at least one polyvalent metal element M selected from a group consisting of iron, aluminum, zinc, zirconium, titanium, tin, and lead in an average content of 0.001 to 0.02 in terms of an M/Si molar ratio, and having an average primary particle diameter of 5 to 40 nm, wherein the content of the polyvalent metal element M present in an outermost layer of the colloidal particles is 0 to 0.003 atom per square nanometer (nm2) of a surface area of the colloidal particles; and a silica sol that the colloidal silica particles are dispersed in an organic solvent, a silica sol that the colloidal silica particles are dispersed in a polymerizable compound, and a silica sol that the colloidal silica particles are dispersed in a dicarboxylic anhydride.

Abstract: Corrosion-inhibiting pigments based on cobalt are described that contain a trivalent or tetravalent cobalt/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent cobalt ion to form a compound that is sparingly soluble in water. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent cobalt during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Cobalt/valence stabilizer combinations are chosen based on the well-founded principles of cobalt coordination chemistry. Many cobalt-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium systems.

Abstract: A composition for coating a surface includes a carrier and an indicator distributed throughout the carrier. The indicator is configured to modify an appearance of the coating. The indicator facilitates determining a thickness of the coating in response to the appearance of the coating.

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: A bright pigment 100 includes: a flaky substrate 10; a first layer 20 that is formed on the flaky substrate 10 and that contains one selected from the group consisting of titanium dioxide, silver and a silver alloy as its main component; and a second layer 30 that is formed so that the first layer 20 is interposed between the flaky substrate 10 and the second layer 30 and that contains the hydroxide or hydrated oxide of neodymium.

Abstract: Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Manganese/valence stabilizer combinations are chosen based on the well-founded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems.

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 interference pigments based on coated flake-form substrates which are distinguished by the fact in that they comprise (A) a layer of SiO2 having a layer thickness of 5-350 nm, (B) a high-refractive-index coating having a refractive index n of >1.8 and/or (C) an interference system consisting of alternating high- and low-refractive-index layers and optionally (D) an outer protective layer, and to the use thereof in paints, coatings, automotive 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 tent awnings, as absorbers in the laser marking of paper and plastics, in cosmetic formulations, for the preparation of pigment pastes with water, organic and/or aqueous solvents, and for the preparation of pigment preparations and dry preparations.

Abstract: The present invention relates to pigment granules which contain inorganic filter aids and a process for the production thereof and their use for colouring lime- and/or cement-bound building materials, asphalt, paints, finishes, paper or plastics.

Abstract: A sulfonated derivative of an organic pigment moiety comprising a polyetheramine, and a metal or ammonium salt. The pigment is used for coloration of printing inks and coatings. For ink-jet systems there is excellent filterability, low viscosity, and stability thereof.

Abstract: A bonding material for a honeycomb structure comprises inorganic particles in which D90/D10 is from 10 to 500, D10 is 100 ?m or less and D90 is 4 ?m or more, and the D10 and D90 are the values of 10% diameter and 90% diameter from a smaller particle diameter side, respectively, in volume-based integrated fractions of a particle diameter distribution measurement by a laser diffraction/scattering method.

Abstract: There is provided a coating material for a honeycomb structure, the coating material including inorganic particles or organic particles having D90/D10 of 5 to 50 with D10 of 50 ?m or less and D90 of 4 ?m or more (wherein D10 and D90 are values of 10% diameter and 90% diameter, respectively, in volume-based integrated fraction of a particle diameter distribution measured by a laser diffraction/scattering method from the smaller particle diameter side).

Abstract: A pearlescent pigment includes a ceramic flake coated with a metal oxide. The metal oxide is, preferably, an oxide of titanium, iron, tin, chromium1, zirconium or a combination thereof, and the refractive index of the metal oxide coating is preferably at least 0.5 higher than that of the ceramic flake. The pearlescent pigment may be included in a coating applied to a metallic or plastic surface to give the surface a lustrous or pearlescent optical effect.

Abstract: The present invention provides a zirconium oxide powder, a method for producing.the same, and a material for thermal spraying. The material for thermal spraying comprises a zirconium oxide powder comprising polyhedral particles each having not less than 6 faces, wherein the zirconium oxide powder has D50 of not less than 5 ?m and less than 15 ?m and a D90/D10 of less than 3. D10, D50 and D90 correspond to the point where the cumulative mass from the small-particle-diameter side reaches 10%, 50%, and 90% in the cumulative particle size distribution.

Abstract: Use of pyrogenic metal oxide for the manufacture of a selfcompacting composition comprising hydraulic binders and having high early strength, the composition comprising at least one hydraulic binder and water as further constituents and the product of the BET surface area, in m2/g, of the pyrogenic metal oxide and the proportion by weight of the pyrogenic metal oxide based on the hydraulic binder being 20 to 200 m2/100 g of hydraulic binder.

Abstract: It is an object of the present invention to provide a process of manufacturing calcium carbonate-containing slurries, wherein said calcium carbonate-containing slurries are prepared by adding one or more zirconium compounds, and possibly one or more further phosphate-free additives acting as dispersing and/or grinding aid agents. An other object of the invention lies in calcium carbonate-containing slurries thus obtained, and dry calcium carbonate mineral pigments resulting from the drying of such slurries. A further object of the invention is the use of such slurries and such dry mineral pigments in paper manufacturing, plastic coatings, as fillers for plastics or for aqueous paint compositions and the like. Papers, paints and plastics containing such slurries and such dry pigments are also an object of the present invention.

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: A pearlescent pigment and a process for enhancing the magnetic properties of a pearlescent pigment. The pearlescent pigment has a layer with regions of ?-Fe2O3 and regions of ?-Fe2O3. The magnetic properties of a pearlescent pigment may be enhanced by the steps of: providing a platelet pigment with a layer of Fe2O3, with a magnetic susceptibility less than 0.1×10?5 m3/kg; reducing some or all of the Fe2O3 to Fe3O4; and oxidizing some or all of the Fe3O4 to ?-Fe2O3. The color difference (?E*) between the provided pigment and the resultant pigment is not more than about 5.

Abstract: Processes for altering surface properties of pigment particles are provided. The processes include coating the particles with ionic natural polysaccharides or ionic derivatives of natural polysaccharides, providing enhanced properties.

Abstract: A method for the preparation of silicium dioxide dispersions is provided, wherein the surface of the silicium dioxide is modified by a treatment with the reaction products, formed in a separate reaction step, of at least one compound of trivalent aluminum or of tetravalent zirconium or a mixture thereof with at least one aminoorganosilane; and the invention also relates to recording sheets for ink jet printing having such a dispersion incorporated in an ink-receiving layer.

Abstract: Colloidal dispersions, in a continuous phase, contain a compound of cerium and another element M selected from among zirconium, rare earths (Ln) other than cerium, titanium and tin, wherein such compound is in the form of a mixed oxide in which the cerium and the element M are in solid solution; the cerium is in the form of cerium III in an amount expressed in cerium III/total cerium atomic ratio ranging between 0.005 and 0.06 and the dispersion is produced by forming a liquid medium comprising cerium salts, in particular of cerium III, and the element M, contacting the medium with a base to provide a pH of not less than 9, separating and washing the resulting precipitate and peptizing same by treating with an acid whereby the dispersion is obtained.

Abstract: A pearlescent pigment, wherein the pigment is an inorganic material and the color of a homogeneous coating of the pigment, measured over a black background has a CIELAB hue angle, hab, from about 40 to about 320 degrees, wherein L* is from about 35 to about 80, and the chroma value is less than 5. A substrate is coated with iron oxide by oxidizing an iron salt to form a pigment. The pigment may be made by a process of coating iron oxide on a substrate by oxidizing an iron salt. During the coating of the iron oxide, the pH of the mixture is increased. The coating formed has a Fe(III)/Fe(II) ratio of greater than 2. The pigments may be used in a variety of applications including coating, ink, plastic, and cosmetic compositions.

Abstract: Filler pigments based on platelet-shaped substrates, which are coated with barium sulfate and at least two metal oxides and/or metal hydroxides are highly suitable as filler pigments especially for cosmetic formulations.

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 invention pertains to a highly concentrated pigment comprising from 75 to 95% by weight, preferably from 78 to 95% by weight, most preferred from 80 to 95% by weight, based on the weight of the composition, of a pigment; from 0 to 20% by weight, preferably from 5 to 18% by weight, based on the weight of the composition, of a resin; the total of pigment and resin being from 85 to 98% by weight of the composition; and from 1 to 15% by weight, preferably from 2 to 15% by weight, most preferably from 5 to 15% by weight, based on the weight of the composition, of a C10-C18 alcohol, a liquid hydrocarbon having a boiling point higher than 80° C. at 105 Pa, or both a C10-C18 alcohol and a liquid hydrocarbon having a boiling point higher than 80° C. at 105 Pa. Also claimed are a process for its manufacture, comprising dry-milling, blending and kneading the components, and the use of the pigment concentrates for the preparation of a masterbatch, ink, coating, plastic material, toner or colour filter.

Abstract: The present invention provides a transparent inorganic oxide dispersion which makes it possible to improve the refractive index and mechanical characteristics and to maintain transparency by modifying the surface of inorganic oxide particles with a surface modifier having one or more reactive functional groups; and an inorganic oxide particle-containing resin composition in which the transparent inorganic oxide dispersion and a resin are compositely integrated by the polymerization reaction, a composition for sealing a light emitting element, a light emitting element, and a method for producing an inorganic oxide particle-containing resin composition; and a hard coat film which has high transparency and makes it possible to improve a refractive index and tenacity, an optical functional film, an optical lens and an optical component.

Abstract: A particulate metal oxide having the mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume particle diameter of the secondary particles is less than 45 nm. The metal oxide can be used in a sunscreen product that exhibits both effective UV protection and improved transparency.

Abstract: There is provided a bonding material composition capable of suppressing crack generation on an end face of a resultant honeycomb structure to a large extent by reducing anisotropy of Young's modulus after curing of the bonding material by the use of an isotropic filler without using inorganic fibers. The bonded body has two or more members unitarily bonded by means of a bonding material layer, and the relational expression of 0.5<Ez/Ex<1.5 is satisfied when a Young's modulus in a direction perpendicular to a bonded surface of the bonding material layer is Ez and a Young's modulus in a direction parallel to the bonded surface and parallel to a longer axial direction of the bonded surface is Ex and wherein the bonded material has a porosity of 25 to 85%.

Abstract: The present invention relates to the use of nanoparticles for the preparation of water-based dispersion adhesives, and especially the use of finely divided barium sulfate therein. The nanoparticles can be used with or without chemical modification. Adhesives of this kind feature improved properties, examples being improved cohesion in conjunction with comparable adhesion and higher heat resistance. Preference is given to dispersion adhesives based on polyacrylate, polyurethane, and epoxy resin.

Abstract: The invention relates to modified nanoparticles based on pyrogenic silica which are produced by treating pyrogenic silica with compounds of the general formula I Me(OR1)4, and/or of the general formula II Me(OCOR1)4, wherein R1 means an alkyl, aryl and/or aralkyl residue and Me means zirconium and/or titanium and to coating compositions containing the modified nanoparticles.

Abstract: An object of the present invention is to provide a process to obtain a calcium carbonate material comprising GCC and PCC, presenting a fraction of particles finer than 1 ?m of greater than 80%, preferably of greater than 85%, more preferably of greater than 90%, and even more preferably of greater than 95%, and a specific surface area of less than 25 m2/g, in a cost efficient manner, wherein GCC and PCC are co-ground, possibly with at least another mineral material. An other object of the present invention lies in the co-ground calcium carbonate material in the form of an aqueous suspension and in the form of a dry product. An other object of the present invention lies in the uses of such products in any sector making use of mineral material, and notably in the paper, paint and plastic industries.

Abstract: The present invention relates to effect pigments comprising transition-metal oxides or transition-metal hydroxyoxides or transition-metal hydroxides based on flake-form substrates which are uncoated or coated with one or more metal oxides, and to the use thereof, inter alia in paints, coatings, printing inks, plastics and in particular in cosmetic formulations.

Abstract: The present invention provides a system of N?3 interference pigments, which is distinguished in that it exhibits a maximum colour gamut through specification of the optimum pigment hue angle hu, vi (i=1 to N) in the CIELUV system.

Abstract: The present invention relates to interference pigments on the basis of multiply coated, platelet-shaped substrates which comprise at least one layer sequence comprising: (A) a metal oxide coating having a refractive index n?2.0, (B) a colorless metal oxide or fluoride coating having a refractive index n?1.8, (C) a nonabsorbing metal oxide coating of high refractive index, and, wherein the pigment further comprises (D) an oxide of calcium, magnesium, or zinc. The present pigment may be used in paints, printing inks, and for producing counterfeit-protected documents of value, such as bank notes, cheques, cheque cards, credit cards, identity cards, etc.

Abstract: Disclosed herein is a method of heat-treating particulate material, such as kaolin. The method comprises providing a feed mixture comprising a particulate material, such as hydrous kaolin, wherein at least a portion of the particulate feed is coated with an additive/liquid fuel mixture comprising at least one additive dispersed in liquid fuel. The method further comprises heating the particulate feed to heat treat, e.g., calcine, the particulate feed and burn the liquid fuel to form a heat-treated product. The liquid fuel coating can act as a secondary, indirect heat source for heat treating.

Abstract: A method for forming a transparent hydrophobic self-cleaning coating material, comprising: providing particle precursors to form first particles; and reacting first particles with a low-surface-energy compound to form second particles, wherein the first particles are chemically bonded to the low-surface-energy compound and diameters of the second particles are less than 400 nm.

Abstract: A dispersion containing zinc oxide particles having a dispersion particle size of (i) median volume particle diameter in the range from 70 to 130 nm, (ii) less than 16% by volume of particles having a volume diameter of less than 35 nm below the median volume particle diameter, and (iii) more than 84% by volume of particles having a volume diameter of less than 57 nm above the median volume particle diameter. The zinc oxide dispersion can be used in a sunscreen product that exhibits both effective UV protection and improved transparency. The zinc oxide is particularly suitable for use in combination with transparent titanium dioxide.

Abstract: The present invention relates to oxidation-stable iron oxide pigments which have a coating of at least one organic substance, to their preparation and to their use.

Abstract: The present invention relates to an infrared reflecting black pigment which comprises a composite oxide containing Fe, Co and at least one metal selected from the group consisting of Al, Mg, Ca, Sr, Ba, Ti, Zn, Sn, Zr, Si and Cu; has an average plate surface diameter of 0.02 to 5.0 ?m, a blackness (L* value) of not more than 30, an average reflectance of not more than 10% in a visible light wavelength range of 250 to 780 nm and an average reflectance of not less than 35% in an infrared wavelength range of 780 to 2500 nm. There is provided an infrared reflecting black pigment which is capable of producing a heat-shielding paint containing no harmful elements and exhibiting an excellent infrared reflecting property.