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| Number | Title | Issue Date |
| 8070874 | Surface-modified titanium dioxide particle and method for producing the same The invention provides a surface-modified titanium dioxide particle inhibited in photocatalytic activity and reduced in amount of volatile water. The surface-modified titanium dioxide particle has on the surface a crystalline composite compound of at least one of al... | 12/06/2011 |
| 7381398 | Titanium oxide powder, methods of manufacturing the same and barium titanate powder, dielectric ceramic, and multilayer ceramic capacitor A titanium oxide powder holding a barium compound on the surface of the particles thereof is used for manufacturing a highly crystalline fine barium titanate powder by solid-phase reaction. When the titanium oxide powder and a barium-containing powder material are m... | 06/03/2008 |
| 7303815 | Functional bimorph composite nanotapes and methods of fabrication A two-layer nanotape that includes a nanoribbon substrate and an oxide that is epitaxially deposited on a flat surface of the nanoribbon substrate is described. The oxide is deposited on the substrate using a pulsed laser ablation deposition process. The nanoribbons... | 12/04/2007 |
| 7285162 | Titanium dioxide pigment having improved light stability In various embodiments, methods and compositions are provided comprising titanium dioxide and silica spacers having improved light stability for use in paper, plastic and paints. ... | 10/23/2007 |
| 7265176 | Composition comprising nanoparticle TiO2 and ethylene copolymer Disclosed is a composition comprising or produced from nanoparticle-sized TiO2, an ethylene copolymer or ionomer of the ethylene copolymer, and optionally a second polymer. Also disclosed are films and other shaped articles produced therefrom. The composi... | 09/04/2007 |
| 7226503 | Effect pigments based on coated glass flakes 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 pl... | 06/05/2007 |
| 7014893 | Support material for recording layers A support material comprises a raw paper that may be coated on at least one side with a synthetic resin, and the raw paper or the resin coating on the raw paper is provided at least on the front side with a pigment layer wherein the pigment layer contains at least a... | 03/21/2006 |
| 6936348 | Method for deposition of rutile-type titanium dioxide, and substrate and glass flakes having the oxide attached thereto The present invention relates to a method of depositing rutile type titanium dioxide, and a substrate and glass flakes having rutile type titanium dioxide obtained using the method fixed thereto. An object of the present invention is to make heating essentially unne... | 08/30/2005 |
| 6793720 | Solid marking composition as writing means, a writing instrument, an optically variable marking layer and use of a plurality of optically variable pigments A solid marking composition comprises a solid matrix containing at least one type of optically variable interference pigment flakes. The solid marking composition provides a document or article with a copy and counterfeit protection feature, and is preferably used i... | 09/21/2004 |
| 6638349 | Surface treatments for pigments providing improved dispersibility and exhibiting biocidal activity A composition consisting of the reaction product of a halogenated carboxylic acid, an amine, and optionally a fatty acid. The composition has biocidal properties and enhances pigment dispersibility.... | 10/28/2003 |
| 6627336 | Titanium oxide sol, thin film, and processes for producing these An aqueous dispersion of titanium oxide particles comprising chloride ion, and a Brønsted base other than chloride ion, preferably at least one kind of ion selected from nitrate ion and phosphate ion. Preferably the titanium oxide particles are predomina... | 09/30/2003 |
| 6610136 | Pigments for ink jet paper Aggregated mineral pigments (such as kaolin clay pigments) having a high surface area and useful in coating and filling compositions for ink jet printing media are manufactured by dry grinding an unground mineral composition starting material and then opt... | 08/26/2003 |
| 6605147 | Use of surface-coated rutile modification TiO2 pigments as an anticorrosive white pigment The use of surface-coated rutile modification TiO2 pigments having a primary particle grain size d50 of 0.1 to 1.0 μm as an anticorrosive white pigment, with firstly magnesium phosphate and secondly aluminum oxides and/or aluminum h... | 08/12/2003 |
| 6558464 | Very high solids TiO2 slurries The present invention discloses high solids slurries of anatase titanium dioxide pigment comprising greater than about 75% by weight of anatase TiO2 pigment dispersed in water. A process for producing the slurries of the present invention is di... | 05/06/2003 |
| 6540823 | Zinc magnesium titanates, processes for preparing thereof and thermoregulating functional compositions containing the same The present invention relates to a novel zinc magnesium titanate represented by formula (I): Zn2-x Mgx.yTiO.sub.4 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 ... | 04/01/2003 |
| 6540824 | Titanium-iron based composite oxide pigment and method for production thereof The present invention provides a yellow pigment which contains a titanium-iron complex oxide of the pseudo-brookite type and produces a stabilized color more yellowish than conventionally and which is universally usable for coloring plastics, ceramics and... | 04/01/2003 |
| 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 |
| 6348092 | Surface treatments for pigments providing improved dispersibility and exhibiting biocidal activity A composition consisting of the reaction product of a halogenated carboxylic acid, an amine, and optionally a fatty acid. The composition has biocidal properties and enhances pigment dispersibility.... | 02/19/2002 |
| 6251361 | Non-fibrous potassium titanate and method for producing the same The potassium titanate of the present invention comprises particles of a diameter of 3 μm or less and a length of 5 μm or more with a ratio of the length to the diameter of 3:1 or more, at a content in number of 3% or less, with no hazardous particles c... | 06/26/2001 |
| 6197104 | Very high solids TiO2 slurries The present invention discloses high solids slurries of anatase titanium dioxide pigment comprising greater than about 75% by weight of anatase TiO2 pigment dispersed in water. A process for producing the slurries of the present invention is di... | 03/06/2001 |
| 6143064 | Pigment particles coated with precipitated calcium carbonate and a process for the preparation thereof This invention relates to a pigment particle product and a method for its preparation. According to the invention pigment particles, such as kaolin, natural calcium carbonate or titanium dioxide, and precipitated calcium carbonate are mixed together in an... | 11/07/2000 |
| 6103360 | High light reflectance and durable ceiling board coating A ceiling board coating composition includes water, a binder and a filler, said filler having large particles with an average particle size of a minimum of about 50 microns, medium particles with an average particle size in the range of from about 1.2 to ... | 08/15/2000 |
| 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 |
| 6036763 | KOH neutralized metatitanic acid mixture and complex inorganic pigments containing the same In one embodiment, the present invention relates to a KOH neutralized metatitanic acid mixture containing from about 30% to about 99% by weight metatitanic acid, from about 1% to about 20% by weight of a titanyl compound, and optionally from about 0% to a... | 03/14/2000 |
| 5968248 | Heat-resistant inorganic pigment and process for producing the same A heat-resistant inorganic pigment of the present invention comprises a composite metal oxide containing Ti and two divalent metals selected from the group consisting of Mg, Fe, Ni and Co, the content of said two divalent metals in said composite metal ox... | 10/19/1999 |
| 5958125 | Goniochromatic luster pigments based on transparent, nonmetallic, platelet-shaped substrates 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 of A) a colorless coating having a refractive inde... | 09/28/1999 |
| 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 |
| 5942281 | Treatment process for titanium dioxide pigments, novel titanium dioxide pigment and its use in paper manufacture Process for the surface treatment of a titanium dioxide pigment, characterized in that it comprises the following steps: an aqueous suspension of titanium dioxide pigments is formed, in a first step, a layer of alumina phosphate is precipitated on the surface ... | 08/24/1999 |
| 5922121 | Hydrophobic treatment of pigments A surface derivatizing agent is allowed to contact an aqueous slurry of transition metal-containing pigment particles to increase the hydrophobicity of the surface of such particles. The modified pigment particles disperse easily in a wide variety of orga... | 07/13/1999 |
| 5910213 | Treated titanium dioxide A pigmentary material comprises particulate titanium dioxide the particles of which have been treated with a polymeric hindered amine stabiliser. The stabiliser is a polymer having a main chain substantially free of acidic groups and having hindered amine... | 06/08/1999 |
| 5908498 | Process for preparing an improved low-dusting, free-flowing pigment A process for preparing a low-dusting, free-flowing pigment which has not been subjected to any micronizing treatment comprising the steps of providing an inorganic pigment material; providing a source of water; forming a fine, well dispersed slurry of th... | 06/01/1999 |
| 5886069 | Titanium dioxide particles having substantially discrete inorganic particles dispersed on their surfaces The present invention relates to TiO2 pigments having TiO2 particles with substantially discrete inorganic particles dispersed on the surfaces of the TiO2 particles. Suitable inorganic particles include silica, calcium car... | 03/23/1999 |
| 5855661 | Pigment dispersion A method for preparing modified pigment particles including contacting an aqueous slurry of metallo, mono and bi-dentate ligand pigment particles with a surface derivatizing agent having one or more phenolic moieties, a 1, 3-diketo moiety or a combination... | 01/05/1999 |
| 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 |
| 5770310 | Composite fine particles of metal oxides and production thereof Composite fine particles of metal oxides containing titanium dioxide which produce a remarkable ultraviolet screening effect over the entire region of spectrum. Each particle is composed of a core and a surface layer, said core being composed of a nucleus... | 06/23/1998 |
| 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 |
| 5746819 | High solids anatase TiO2 slurries The present invention discloses high solids slurries of sulfate process, anatase titanium dioxide pigment. The improvements of these slurries over those of the prior art are improved slurry stability, tolerance to calcium and magnesium ions, foaming tende... | 05/05/1998 |
| 5733365 | Process for preparing an improved low-dusting, free-flowing pigment A process for preparing a low-dusting, free-flowing pigment which has not been subjected to any micronizing treatment comprising the steps of providing an inorganic pigment material; providing a source of water; forming a fine, well dispersed slurry of th... | 03/31/1998 |
| 5665466 | Treatment process for titanium dioxide pigments, novel titanium dioxide pigment and its use in paper manufacture Process for the surface treatment of a titanium dioxide pigment, characterized in that it comprises the following steps: an aqueous suspension of titanium dioxide pigments is formed, in a first step, a layer of alumina phosphate is precipitated on the surface ... | 09/09/1997 |
