Abstract: A bismuth oxychloride effect pigment has a carbon black particulate at about the surface of the crystals of the bismuth oxychloride. The pigment is prepared by, for instance, growing the bismuth oxychloride crystals, and adding the particulate before the hydrolysis is complete.

Abstract: The present invention relates to coloured interference pigments based on multicoated, platelet-shaped substrates, which are distinguished in that they comprise

Abstract: A method of controllably altering the mineral matter transformation of mineral compositions such as, for example, vermiculitic micas, to achieve metamorphosed mineral compositions having specifically desired monatomic lattice defects is provided. Compositions formed in accordance with the method are also provided that exhibit physical properties desirable in a variety of industrial applications, including, for example, control and/or reduction of NOx, SOx, COx and other gaseous chemical species from industrial effluents, atmospheric control systems, fabrication and use of chemical detectors, and solid state electronic substrates and devices.

Abstract: Interference pigment flakes and foils are provided which have luminescent and color-shifting properties. A luminescent material coating structure is provided which partially covers or encapsulates a color-shifting pigment flake, or covers the outer surface of a foil. The pigment flakes can have a symmetrical coating structure on opposing sides of a core layer, can have an asymmetrical coating structure with all of the layers on one side of the core layer, or can be formed with encapsulating coatings around the core layer. The coating structure of the flakes and foils includes a core layer, a dielectric layer overlying the core layer, and an absorber layer overlying the dielectric layer. The luminescent pigment flakes and foils exhibit a discrete color shift so as to have a first color at a first angle of incident light or viewing and a second color different from the first color at a second angle of incident light or viewing.

Abstract: The pigment dispersion liquid is produced using at least a pigment, liquid medium, and a dispersant, as follows. That is, a mixture consisting of at least the pigment, liquid medium and the dispersant is held under a pressure which is less than the atmospheric pressure and then the mixture is held under a pressure equal to or higher than the atmospheric pressure. Finally, dispersion is carried out.

Abstract: The present invention relates to a pigment preparation comprising BiOCl pigments, one or more luster pigments and spherical particles, and to the use thereof in printing inks, security printing inks, surface coatings, paints, plastics and in cosmetic formulations.

Abstract: The invention relates to a non-dusting, homogeneous pigment preparation, comprising ≧40% by weight of one or more effect pigments, 0.5-60% by weight of a polyalkylene glycol and/or one or more polyalkylene glycol derivatives, 0-10% by weight of a redispersing auxiliary, 0-40% by weight of water or an organic solvent or solvent mixture, 0-40% by weight of at least one further hydroxyl-rich resin, and to its use as a precursor for printing inks.

Abstract: Described is a process for preparing a powder coating material, in which a mixture comprising binders, pigments and also, where appropriate, fillers, additives and cross linkers is extruded and then ground. The pigment fraction of this mixture at least in part comprises surface-modified effect pigment that has been coated with a low molecular mass polyethylene or polypropylene. Also, described is a powder coating material prepared by this process and the use of effect pigments coated with low molecular mass polyethylene or polypropylene to prepare powder coating materials.

Abstract: The invention relates to a non-dusting homogeneous pigment preparation which is notable in that it comprises at least 40% by weight of one or more effect pigments, from 0.5 to 60% by weight of an aldehyde resin and/or ketonic resin and from 0.1 to 10% by weight of a redispersant.

Abstract: The present invention relates to a novel zinc magnesium titanate represented by formula (I): Zn2−xMgx.yTiO4 in which x denotes a real number of 0.5 to 1.5; and y denotes an integer of 1 or 2, and to a process for preparing the same and a thermoregulating functional composition which comprises zinc magnesium titanate of formula (I).

Abstract: A colorant for ink-jet printing ink of the present invention, has an average particle diameter of 0.001 to 0.15 &mgr;m, and comprises: extender pigments as core particles; a gluing agent coating layer formed on at least a part of surface of said core particle; and an organic pigment coat uniformly formed on at least a part of said gluing agent coating layer. The colorant for ink-jet printing ink exhibits not only a high tinting strength and a clear hue, but also excellent dispersibility and light resistance in spite of fine particles.

Abstract: Luster pigments based on multiply coated reflecting platelet-shaped substrates and comprising at least one layer packet comprising A) a low refractive coating which selectively absorbs visible light and B) a reflective coating which is at least partially transparent to visible light and also, if desired, C) an outer protective layer.

Abstract: The invention relates to a platelet-like pigment having high lustre and high covering power or high transparency, consisting of a transparent, inorganic, platelet-like matrix which can contain an additional constituent, characterised in that the additional constituent is a soluble or insoluble colorant and in that the matrix is coated at least on one side with one or more thin, transparent or semi-transparent reflective layers of metal oxides or metals to achieve the lustre.

Abstract: Methods and apparatus are provided for uniformly depositing a coating material from a vaporization source onto a powdered substrate material to form a thin coalescence film of the coating material that smoothly replicates the surface microstructure of the substrate material. The coating material is uniformly deposited on the substrate material to form optical interference pigment particles. The thin film enhances the hiding power and color gamut of the substrate material. Physical vapor deposition processes are used for depositing the film on the substrate material. The apparatus and systems employed in forming the coated particles utilize vibrating bed coaters, vibrating conveyor coaters, or coating towers. These allow the powdered substrate material to be uniformly exposed to the coating material vapor during the coating process.

Abstract: A number of stable mixtures are disclosed containing specific combinations and levels of extender pigments and thickeners. These stable mixtures may be employed, inter alia, as a mixture in a method of making paints using prepaints or as a conventional component in a coating, such as a paint, or other end-use where opacifying pigments are employed.

Abstract: Additive pigments having a box-shape spectral distribution are provided. These pigments are characterized in that they are pigment powders which respectively have a high reflectance in the regions corresponding to the three primary colors of light, and comprise three pigments respectively having the three primary colors of light (red, green, and blue), and that when these pigments of the three colors are mixed together, each pigment is subjected to additive color mixing.

Abstract: The present invention relates to pigment mixtures comprising at least two components, component A being multilayer pigments based on mica, SiO2 flakes, glass flakes, Al2O3 flakes or polymer flakes and component B being platelet-shaped, acicular or spherical colorants and/or fillers, and to the use thereof expecially in varnishes, paints, printing inks, powder coatings, plastics, ceramic glazes, polymer films and cosmetic formulations.

Abstract: Pigments of flake substrate coated with calcium carbonate wherein the surface of the flake substrate is coated with fine particles of calcium carbonate. The pigment may be manufactured by a method where calcium carbonate in fine particles is separated out and coated on the surface of the flaky substrate by the reaction of a calcium salt with a carbonate in a suspension of the flake substrate. It can be used as an extender particularly for cosmetics exhibiting appropriate adhesion to skin, low luster and excellent wrinkle-hiding effect, prevention of unpleasant feel due to perspiration, sebum absorbing property, etc.

Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being SiO2 flakes coated with one or more metal oxides and/or metals and component B being platelet-shaped, acicular or spherical colorants or fillers, and to their use in particular in varnishes, paints, printing inks, powder coating materials, plastics and cosmetic formulations.

Abstract: The present invention relates to a pearl luster pigment on the basis of a platelet-shaped substrate coated with metal oxides and a top layer which is located on the metal oxide layer and can possess a multilayer structure, comprising a first layer, containing a hydroxide or oxide hydrate of the elements aluminum or silicon, a second layer, containing at least one hydroxide or oxide hydrate of the elements aluminum, silicon, cerium or zirconium, with the exception of the hydroxide or oxide hydrate which forms the first layer, and a third layer, containing at least one organic hydrophobic coupling agent. The present invention also relates to a preparation process and the use of pigments in paints, inks, plastics, coatings and cosmetics.

Abstract: The invention relates to a pearl luster pigment which may possess a first, inner layer, consisting of a platelet-shaped substrate, a second layer, comprising one or more metal oxides, the first and second layers forming a calcined base pigment, a third layer, comprising the corresponding uncalcined oxide, hydroxide or oxide hydrate of the oxide of the second layer, a fourth layer, comprising oxides, hydroxides and/or oxide hydrates of silicon or aluminum, a fifth layer, comprising oxides, hydroxides and/or oxide hydrates of silicon, aluminum, zirconium and/or cerium, this layer differing from the fourth layer, and a sixth layer, comprising one or more organofunctional coupling reagents. The present invention relates to also a preparation process, and the use of the pigments in paints, inks, plastics, coatings and cosmetics.

Abstract: Pearlescent pigment having a chromium coating thereon and an iron oxide coating on the chromium coating are intensely colored, almost phosphorescently colored, and are highly reflective.

Abstract: Provided is an ink for writing instruments which contains an interference pigment as a colorant and is designed to change the color tone of a line drawn with the ink depending on the darkness of a writing surface. The ink for writing instruments therefore contains an interference pigment coated, on the surface of a flaky minute base material, with a metal oxide having a high refractive index.

Abstract: Colored lustrous pigments of superior quality are prepared by dry blending a platy substrate such as a metal oxide-coated mica nacreous pigment and a hydrophobic colorant at low shear. The resulting blend exhibits a well dispersed, stable coloration, increased hydrophobicity and is particularly useful in industrial and automotive applications. The technique can also be employed to prepare pigments for cosmetic application.

Abstract: Intercalates formed by contacting a layered material, e.g., a phyllosilicate, with an intercalant monomer having a hydroxyl and/or an aromatic ring functionality to sorb or intercalate the intercalant monomer between adjacent platelets of the layered material. Sufficient intercalant monomer is sorbed between adjacent platelets to expand the adjacent platelets to a spacing of at least about 5 Å (as measured after water removal to a maximum of 5% by weight water), up to about 100 Å and preferably in the range of about 10-45 Å, so that the intercalate easily can be exfoliated into individual platelets. The intercalated complex can be combined with an organic liquid into a viscous carrier material, for delivery of the carrier material, or for delivery of an active compound; or the intercalated complex can be combined with a matrix polymer to form a strong, filled polymer matrix.

Abstract: The present invention is directed to a process for producing a master batch of pigment, comprising mixing a pigment having a high aspect ratio, embedded in a material increasing bulk density of the pigment, with a plastic so as to produce a dispersion of pigment and plastic.

Abstract: A golf ball is provided which bears a mark having a distinct appearance unrealizable by only changing in tint. Ink can be prepared by mixing one or more than two components which can afford luster such as pearl particles, shell particles, mica particles and the like in an ink medium. Thereafter the ink can be used for marking the surface of the golf ball by an indirect printing used with a transfer printing film or a direct printing such as a pad printing, a screen printing and the like. The composition of the ink is 5 to 150 parts by weight of the mica, pearl particles and the like. The mica, the pearl particles and the like are employed for flat forms.

Abstract: Systems and methods of making and using fine particle materials in pigment blends and for using the aforementioned pigment blends in paint, coating, or coloring compositions are provided. This invention further provides systems and methods of enhancing the visual appearance of a variety of substrates by introducing a paint, coating, or coloring composition to the substrate. The fine particle materials of the present invention have a substantially random geometric shape, a particle size less than about 100 microns, and help provide both functional and visual enhancing properties to compositions and substrates containing these fine particle materials.

Abstract: A color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with copper, zinc, an alloy of copper, or an alloy of zinc first layer which acts as a reflector to light directed thereon, a second layer encapsulating the first layer in which the second layer provides an optically variable reflection of light impinging thereon and a third layer encapsulating the second layer and being selectively transparent to light directed thereon.

Abstract: The invention relates to a pearl luster pigment which may possess a first, inner layer, consisting of a platelet-shaped substrate, a second layer, comprising one or more metal oxides, the first and second layers forming a calcined base pigment, a third layer, comprising the corresponding uncalcined oxide, hydroxide or oxide hydrate of the oxide of the second layer, a fourth layer, comprising oxides, hydroxides and/or oxide hydrates of silicon or aluminum, a fifth layer, comprising oxides, hydroxides and/or oxide hydrates of silicon, aluminum, zirconium and/or cerium, this layer differing from the fourth layer, and a sixth layer, comprising one or more organofunctional coupling reagents. The present invention relates to also a preparation process, and the use of the pigments in paints, inks, plastics, coating and cosmetics.

Abstract: The invention relates to a non-dusting, homogeneous pigment preparation which is distinguished by the fact that it comprises at least 40% by weight of one or more effect pigments and 0.5-59.5% by weight of a modified colophony resin, based on the pigment preparation, and the use thereof, in particular for the production of dry preparations. The pigment preparation according to the invention and the dry preparations produced therefrom are particularly suitable for the pigmenting of paints, coatings, powder coatings, printing inks and plastics.

Abstract: The present invention relates to silver-colored luster pigments based on multiply coated platelet-shaped substrates, which has at least one layer sequence of TiO2, a colorless coating and another TiO2 layer. The pigment can optionally have an outer protective layer. These luster pigments are useful and to the use thereof in paints, coatings, printing inks, including security printing inks, plastics, ceramic materials, glasses, cosmetic formulations and for producing pigment preparations and dry product forms such as granules, chips, pellets and briquettes.

Abstract: The invention relates to a cosmetic composition, containing a four-layered interference pigment comprising an innermost layer of mica, a first outer layer of a colored pigment, a second outer transparent layer, and an outermost layer of a colored pigment, combined with a traditional interference pigment. The compositions, when applied to a facial or body surface, emphasize the contours of the surface, creating greater depth and dimension. The compositions are particularly useful as lip products, to create a fuller, plumper look to the lips.

Abstract: The present invention relates to a pearl luster pigment on the basis of a platelet-shaped substrate coated with metal oxides and a top layer which is located on the metal oxide layer and can possess a multilayer structure, comprising a first layer, containing a hydroxide or oxide hydrate of the elements aluminum or silicon, a second layer, containing at least one hydroxide or oxide hydrate of the elements aluminum, silicon, cerium or zirconium, with the exception of the hydroxide or oxide hydrate which forms the first layer, and a third layer, containing at least one organic hydrophobic coupling agent. The present invention also relates to a preparation process and the use of pigments in paints, inks, plastics, coatings and cosmetics.

Abstract: The present invention relates to rare earth metal sulfide or oxysulfide pigments and yttrium sulfide or oxysulfide pigments based on platelet-shaped substrates.

Abstract: Surface-modified conductive pigment obtainable by partial coating of a conductive pigment with an organic modifying agent. The modifying agent is an organometallic compound of the elements silicon, tin, titanium, zirconium or aluminum. The pigment is prepared by dispersing a conductive pigment, subsequently adding the modifying agent, if appropriate as a mixture with a solvent, to the pigment dispersion, and in particular in an amount such that the powder electrical conductance of the partly coated conductive pigment is in the range between 80% of the starting value and 10−7 S, removing the solvent present, if appropriate, with further agitation and heating of the pigment to 100° C. and finally drying the partly coated pigment.

Abstract: The invention relates to a non-dusting homogeneous pigment preparation notable in that it comprises at least 40% by weight of one or more pearl lustre pigments.

Abstract: Magnetic particles for separating biological mixtures consist of nacreous luster pigments with magnetic properties coated with a biological polymer.

Abstract: A pigment material for use in a coating composition suitable for coating a sheet material to be printed by an electrophotographic printer which pigment material comprises a blend of Components A and B as follows:

Abstract: A lustrous interference pigment with a black absorption color is obtained by forming a mica coated with hydrous titanium, iron and cobalt or chromium oxides, calcining the coated mica and then coating the resulting product with hydrous titanium and/or iron oxides and calcining the resulting product.

Abstract: The invention relates to a non-dusting, homogeneous pigment preparation which is distinguished by the fact that it comprises at least 40% by weight of one or more effect pigments and 0.5-59.5% by weight of a modified colophony resin, based on the pigment preparation, and the use thereof, in particular for the production of dry preparations. The pigment preparation according to the invention and the dry preparations produced therefrom are particularly suitable for the pigmenting of paints, coatings, powder coatings, printing inks and plastics.

Abstract: A precious metal color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a first layer selected from the group consisting of silver, gold, platinum, palladium, rhodium, ruthenium, osmium, iridium and the alloys thereof, which acts as a reflector to light directed thereon, a second layer encapsulating the first layer in which the second layer provides an optically variable reflection of light impinging thereon and a third layer encapsulating the second layer and being selectively transparent to light directed thereon.

Abstract: A laminar pigment which has an aluminum- or an aluminum-cerium oxide coating combined with a hydrolyzed silane coupling agent treated surface is used as a pigment for a powder coating composition. By combining the pigment with a powdery film-forming polymer, a film-forming composition which can be applied by electrostatic coating is produced.

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 one or more functional pigments, such as electrically conductive pigments, magnetic pigments, IR-reflective pigments or lasermarkable pigments, and to their use in varnishes, paints, printing inks, plastics and powder coatings.

Abstract: A lustrous interference pigment with a black absorption color is obtained by forming a mica coated with hydrous titanium, iron and cobalt or chromium oxides, calcining the coated mica and then coating the resulting product with hydrous titanium and/or iron oxides and calcining the resulting product.

Abstract: Intercalates formed by contacting a layered material, e.g., a phyllosilicate, with an intercalant monomer ether and/or ester to sorb or intercalate the intercalant monomer between adjacent platelets of the layered material. Sufficient intercalant monomer is sorbed between adjacent platelets to expand the adjacent platelets to a spacing of at least about 5 Å (as measured after water removal to a maximum of 5% by weight water), up to about 100 Å and preferably in the range of about 10-45 Å, so that the intercalate easily can be exfoliated into individual platelets. The intercalated complex can be combined with an organic liquid into a viscous carrier material, for delivery of the carrier material, or for delivery of an active compound; or the intercalated complex can be combined with a matrix polymer to form a strong, filled polymer matrix. Alternatively, the intercalated complex can be exfoliated prior to combination with the organic liquid or the matrix polymer.

Abstract: A pigment material for use in a coating composition suitable for coating a sheet material to be printed by an electrophotographic printer which pigment material comprises a blend of Components A and B as follows: Component A: a fine pigment material suitable for gloss coating of a sheet material the pigment material comprising particles at least 80% by weight of which have an equivalent spherical diameter (“esd”) of less than 2 &mgr;m and having a particle size distribution (“psd”) such that its d50 value, namely the particle esd value less than which 50% of the particles have an esd, is less than 1 &mgr;m; and Component B: a coarse pigment material having a psd such that its d50 value is from 2 &mgr;m to 10 &mgr;m, desirably 2 &mgr;m to 5 &mgr;m and such that not more than 2% by weight of the particles of the coarse pigment material have an esd greater than 15 &mgr;m, desirably not more than 2% have an esd greater than 10 &mgr;m; wherein the weight ratio of Component A to Component

Abstract: A lustrous interference pigment with a black absorption color is obtained by forming a mica coated with hydrous titanium, iron and cobalt or chromium oxides, calcining the coated mica and then coating the resulting product with hydrous titanium and/or iron oxides and calcining the resulting product.

Abstract: Multilayer pearl luster pigment based on an absorbing platelet-shaped substrate which is coated with alternating layers of a material of low refractive index and a material of high refractive index, or with a metal, the difference in the refractive indices being at least 0.1.

Abstract: Automotive colorcoat paint compositions containing special effect pigment are disclosed. The special effect pigments include mica and the resultant paint composition has been especially useful in refinish paints.