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| Number | Title | Issue Date |
| 7824486 | Paper laminates The present disclosure relates to a process for making a decorative base paper for a paper laminate comprising impregnating a base paper with a pigment mixture of titanium dioxide and water wherein the titanium dioxide pigment is made by treating a mixture of titani... | 11/02/2010 |
| 7686881 | Flame-hydrolytically produced titanium dioxide powder Flame-hydrolytically produced titanium dioxide powder that is present in the form of aggregates of primary particles, and has a BET surface of 20 to 200 m²/g, a half width (HW) [nm] of the primary particle distribution of HW = a×BETf where a = 67... | 03/30/2010 |
| 7371275 | Titanium dioxide pigment and polymer compositions Coated titanium dioxide pigment having high UV absorption properties and use in polymer compositions, especially PVC for building and residential construction is described. ... | 05/13/2008 |
| 7288217 | Electroconductive compound in flake form and electroconductive composition An electroconductive compound in a flake form, characterized in that it comprises a titanium oxide which has an average long diameter of 1 to 100 μm and an average thickness of 0.01 to 1.5 μm, and contains potassium in an amount of 0.3 to 5 wt % in terms of potass... | 10/30/2007 |
| 7135206 | Coated titanium dioxide particles A method for producing nanoscale titanium dioxide particles which are coated with an oxide, a hydroxide or an oxide hydroxide of Al, Ce, Zr and/or Si wherein the enzymatic precipitant system urease/urea is used. Said coated titanium dioxide particles can have an ave... | 11/14/2006 |
| 7018465 | Aerosolized ceramic porcelains and glaze composition 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% no... | 03/28/2006 |
| 6875264 | Multi-layer effect pigment 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 n... | 04/05/2005 |
| 6869596 | Ultraviolet light screening compositions A UV screening composition comprising particles which are capable of absorbing UV light so that electrons and positively charged holes are formed within the particles, characterised in that the particles are adapted to minimise migration to the surface of the partic... | 03/22/2005 |
| 6821333 | Color effect materials and production thereof A color effect material is described as composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a highly reflective layer which acts as a reflector to light directed thereon and a spacer pigment layer which is selectiv... | 11/23/2004 |
| 6706109 | Optically variable interference pigments Optically variable interference pigments are composed of platelets of at least partly core-free titanium dioxide-coated substrate of about 1-25 mm particle size and an interference thickness of about 5-600 nm which have an oxide coating thereon. ... | 03/16/2004 |
| 6692561 | Intensely colored interference pigments The invention relates to intensely colored interference pigments based on multi-layered plate-like substrates with at least two sequences of layers consisting of (A) a colorless layer with a refraction index nࣘ1,8; (B) a high-index layer consisting of a... | 02/17/2004 |
| 6677041 | Platy potassium titanate, process for producing the same, and friction material Platy potassium titanate having a mean major diameter of 1-100 μm and a mean aspect ratio of 3-500 and obtainable by subjecting magnesium or lithium potassium titanate to an acid treatment to thereby prepare platy titanate, immersing the platy titanate i... | 01/13/2004 |
| 6656259 | Multilayered interference pigments The invention relates to multilayered interference pigments which comprise a platelet-shaped substrate of silicon dioxide which is coated alternately with layers of light-transparent materials having refractive indices of n>1.8 and layers of light-transpa... | 12/02/2003 |
| 6648956 | Pigment preparation The invention relates to a nondusting, solvent-containing homogeneous pigment preparation that includes ࣙ70% by weight of one or more effect pigments 0.1-30% by weight of an organic solvent or solvent mixture having an evaporation number (EN) of 10 t... | 11/18/2003 |
| 6648957 | Multilayer nacreous pigment 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 ... | 11/18/2003 |
| 6616746 | Titanium dioxide pigment and method for production thereof The titanium dioxide pigment of this invention has on the titanium dioxide particle surface a coating layer comprising a polyhydric alcohol and a hydrolysis product of an aminosilane compound, has a dispersibility of not more than 20 kg/cm2 as ... | 09/09/2003 |
| 6616745 | Black pearlescent pigments A metal oxide-coated mica pearlescent pigment having a coating of copper chromite thereon is provided.... | 09/09/2003 |
| 6599351 | Anti-corrosive white pigments and method for producing the same Anticorrosive white pigments useful for inhibiting corrosion include surface-coated TiO2 base bodies, preferably in the rutile modification, having Mn3 (PO4)2 and one or more of the substances chosen from alumin... | 07/29/2003 |
| 6579355 | Interference pigments The present invention relates to an interference pigment based on multiply-coated platelet-shaped substrates, comprising at least one layer sequence of (A) a high refractive index coating comprising a mixture of TiO2 and Fe2 O3 | 06/17/2003 |
| 6576052 | Titanium dioxide pigment, process for producing the same, and resin composition containing the same The titanium dioxide pigment of the present invention comprises titanium dioxide particles, the coating layer containing the aluminum phosphate compound and the coating layer containing the hydrolyzate of the organosilane compound, on the surface of the p... | 06/10/2003 |
| 6488757 | After coating of pearl luster pigments with hydrophobic coupling reagents 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, contai... | 12/03/2002 |
| 6488758 | Stabilization of pearl luster pigments 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 la... | 12/03/2002 |
| 6458197 | Heat resistant bismuth vanadate pigment and process for its manufacture The present invention relates to a pigment based on bismuth vanadate with a bright vivid yellow to orange color exhibiting improved resistance, in particular an improved resistance to heat, characterized in that it is coated with several layers of inorgan... | 10/01/2002 |
| 6451102 | Pigment modification improving handling characteristics 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 ... | 09/17/2002 |
| 6409815 | Surface-modified conductive pigment 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 prep... | 06/25/2002 |
| 6387498 | Bright metal flake based pigments A flake-based pigment is provided having improved specular reflectance characteristics in the visible wavelength range. The flake-based pigment has a plurality of core flake sections each formed of a central reflector layer and dielectric support layers o... | 05/14/2002 |
| 6383638 | Bright metal flake based pigments A flake-based pigment is provided having improved specular reflectance characteristics in the visible wavelength range. The flake-based pigment has a plurality of core flake sections each formed of a central reflector layer and dielectric support layers o... | 05/07/2002 |
| 6238472 | Metal oxide coated titanium dioxide lamellas Colored pearl luster pigment consisting of a core of platelet shaped titanium dioxide and one or more layers of other metal oxides or metal oxide hydrates obtainable by solidifying an aqueous solution of a thermally hydrolyzable titanium compound on a con... | 05/29/2001 |
| 6193794 | Goniochromatic luster pigments based on multiply coated iron oxide platelets The iron oxide platelets comprise at least one layer packet comprising A) a colorless coating having a refractive index nࣘ1.8, and B) a colorless coating having a refractive index nࣙ2.0.... | 02/27/2001 |
| 6136083 | Coated inorganic pigments, process for their production and their use 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 μm. Th... | 10/24/2000 |
| 6086667 | Pigments coated with ultraviolet radiation absorbent The invention relates, in particular, to pigments in the form of fine particles having enhanced stability with respect to ultraviolet solar radiation and particle radiation (electrons, protons), characterized in that the pigment are coated with a UV filte... | 07/11/2000 |
| 6080232 | Spherical color pigments, process for their production and use thereof The invention relates to spherical colored pigments having an average particle diameter of less than 10 μm on the basis of an oxide, a mixed oxide or a silicate. The pigments are obtainable by means of spray-pyrolysis technology: a solution containing ox... | 06/27/2000 |
| 5972097 | Method of manufacturing inorganic pigment The invention provides a method for producing colorful inorganic pigments, which comprise complex oxides of various elements, which have good weather resistance and good heat resistance, and which are widely used in colorants for ceramics and in colorants... | 10/26/1999 |
| 5961710 | Inorganic pigment granules process for their production and their use The invention relates to granules of inorganic pigments, a process for their production using several auxiliary substances by compacting and their use in many technical fields.... | 10/05/1999 |
| 5951750 | Anti-yellowing polyolefin compositions containing pearlescent pigment to prevent yellowing and method therefore Antioxidant-containing polyolefin compositions are provided including titanium dioxide-coated mica particles having an overcoating calcined thereon to prevent yellowing of the compositions. Reduced photo-darkening and improved densification of the pigment... | 09/14/1999 |
| 5833892 | Formation of TiO2 pigment by spray calcination In a method of producing TiO2 pigment particles a TiOa Xb (OH)c -based precursor is suspended in a liquid with or without fuel additives. The suspension is then sprayed to form droplets. The droplets are transpo... | 11/10/1998 |
| 5776239 | Hydrothermal process for making ultafine metal oxide powders An ultrafine titanium dioxide powder is disclosed that can be produced by hydrothermal treating an amino titanium oxalate composition. Ultrafine titanium dioxide powders are useful in cosmetic and other applications for controlling exposure to ultraviolet... | 07/07/1998 |
| 5766336 | Colored pigments based on oxide-nitrides, the preparation and use thereof Colored pigments are provided from the green-yellow to red spectrum based on oxide-nitrides with two or three different cations Q, R and S in the crystal lattice, wherein the nitrogen to oxygen atomic ratio is determinative for the color. These pigments c... | 06/16/1998 |
| 5749959 | Dark coating with low solar infrared absorbing properties A stable dark or moderately dark opaque exterior coating constituted of pentations and binder materials having low solar absorbing properties capable of visual and infrared camouflage. The pigmentations and binder materials may be selected for the proper... | 05/12/1998 |
| 5595592 | Dye compositions and methods for film coating tablets and the like An improved dye composition for use in coating tablets and the like is constituted by a stable, aqueous suspension containing a water-soluble, nontoxic dye, an opacifying agent which may be titanium dioxide or iron oxide an immobilizing agent for immobili... | 01/21/1997 |
