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| Number | Title | Issue Date |
| 7850775 | Multi-colored lustrous pearlescent pigments A pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III). A process for making these pearlescent pigment, comprise red... | 12/14/2010 |
| 7470318 | Synthetic mica based pearlescent pigments containing ferrites A pearlescent pigment comprises (a) synthetic mica substrate, (b) calcined ferrite coating on the substrate, and (c) an outer layer or treatment wherein said outer layer or treatment was added to the calcined ferrite coated synthetic mica in water. The pearle... | 12/30/2008 |
| 7396587 | Black film comprised of thermoplastic polyester This invention relates to a single- or multilayer, oriented film formed from polyester and at least one inorganic black pigment. The inventive films include at least one layer which has, alongside polyester, an amount of from 0.5 to 75% by weight of particles incorp... | 07/08/2008 |
| 7335695 | Powder coating precursors and the use thereof in powder coating compositions A laminar pigment which has 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 coatin... | 02/26/2008 |
| 7318861 | Effect pigment 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. ... | 01/15/2008 |
| 7303622 | Lustrous black interference pigments The present invention relates to lustrous black interference pigments based on a substrate mixture, characterised in that it has (A) a coating of Fe3O4 (B) a colorless coating consisting of o... | 12/04/2007 |
| 7241503 | Iridescent pigment having high brilliance and high chroma An iridescent multilayer pigment having at least two or more layers of metal oxides containing one or more metals selected from Ce, Sn, Ti, Fe, Zn and Zr which are coated onto the surface of thin platelet-like substrates. The inventive pigments show high brilliance ... | 07/10/2007 |
| 7223472 | Gloss pigments having high colour saturation The invention relates to coloured gloss pigments having specific particle dimensions comprising a transparent core of a silicon oxide of the composition SiO0.03 to SiO0.95 and, optionally, further coatings of silicon dioxide, carbon, a partiall... | 05/29/2007 |
| 7189454 | Carbon coated high luster materials A platy pigment substrate having a carbon-containing coating thereon is provided wherein the coating comprises a pyrolyzed carbon-containing ionic species. The products of the present invention may be used in any application where pearlescent pigments have been used... | 03/13/2007 |
| 7182981 | Cellulose ester film and production method of the same To provide a cellulose ester film formed by casting, which minimizes degradation of optical properties as well as exhibits sufficient mechanical strength generated by the enhancement of tear strength, and further to provide a production method of the same. A ... | 02/27/2007 |
| 7169222 | Multilayer interference pigments Multilayer interference pigment consisting of a transparent carrier material coated with alternating layers of metal oxides of low and high refractive index, the difference in the refractive indices being at least 0.1, which is obtainable by alternate coating of the... | 01/30/2007 |
| 7141111 | Embedded pigments for ceramic products and oxides in the form of nanometric particles Described herein are embedded pigments consisting of a labile chromophore englobed in a coating of refractory and transparent material formed by nanomolecular particles, also described are oxides of refractory and transparent materials in the form of nanoparticles a... | 11/28/2006 |
| 7045007 | Effect pigment 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. ... | 05/16/2006 |
| 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 |
| 6984682 | Color effect pigments and method of forming the same A metallic effect pigment including a metallic, corrosion resistant reflective core of reflectivity from 40% to 80%; having deposited thereupon at least one dielectric coating layer formed of at least one metal oxide, the metal oxide layer having been formed by depo... | 01/10/2006 |
| 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 |
| 6884289 | Colored pigments The present invention relates to colored pigments based on multicoated platelet-shaped substrates which are distinguished by the fact that they comprise (A) a coating having a refractive index of n>1.8 and a layer thickness of 20-5... | 04/26/2005 |
| 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 |
| 6858072 | Surface-modified pearl pigment and process for producing the same This invention provides a highly orientated surface-modified pearl pigment excellent in plane orientation (leafing effect). Disclosed are: a surface-modified pearl pigment wherein fine polymer particles adhere, without being mutually aggregated, to hydrated metal ox... | 02/22/2005 |
| 6849115 | Method of manufacturing aluminum-substituted hematite A method of manufacturing aluminum-substituted hematite represented by α-(Fe1-xAlx)2O3 where x=0.01 to 0.15, by mixing an iron compound and an aluminum compound such that an atomic ratio of Fe to Al falls within the range... | 02/01/2005 |
| 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 |
| 6800125 | Oxide metallic effect materials 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 silver layer which acts as a reflector to light directed thereon and an iron oxide layer. ... | 10/05/2004 |
| 6794037 | High chroma effect materials 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 silver layer which acts as a reflector to light directed thereon, a spacer layer which is selectively ... | 09/21/2004 |
| 6783584 | High-chromatic flaky pigment coated with semi-transparent film 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 h... | 08/31/2004 |
| 6743285 | Pigment mixture comprising BiOCI pigments The present invention relates to pigment mixtures in the form of a dispersion or powder, consisting of at least two components, where component A comprises coated or uncoated BiOCl pigments in the form of a powder or dispersion, and component B comprises pearlescent... | 06/01/2004 |
| 6719837 | Pearlescent pigments The present invention relates to pearlescent pigments based on substrates coated with one or more layers of nitrides or oxynitrides to a method for the production of such pigments and their use in plastics, paints, coatings, powder coatings, inks, printing inks, gla... | 04/13/2004 |
| 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 |
| 6689205 | Multilayer interference pigments Multilayer interference pigment consisting of a transparent carrier material coated with alternating layers of metal oxides of low and high refractive index, the difference in the refractive indices being at least 0.1, which is obtainable by alternate coa... | 02/10/2004 |
| 6680121 | Bismuth-containing laser markable compositions and methods of making and using same The present invention relates to additive, pigment or colorant materials which may be used for laser marking. The materials comprise oxides of bismuth and at least one additional metal. Preferred laser-markable bismuth-containing oxide compounds are of th... | 01/20/2004 |
| 6676741 | Methods for producing enhanced interference pigments 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... | 01/13/2004 |
| 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 |
| 6645286 | Iron effect pigments The present invention is concerned with soft-magnetic iron effect pigments with metallic luster, which are produced by grinding reductively treated carbonyl iron powder, and which are passivated either during grinding or subsequent to the grinding. The pr... | 11/11/2003 |
| 6638353 | Pigment preparation The invention relates to a non-dusting homogeneous pigment preparation notable in that it comprises at least 40% by weight of one or more effect pigments, from 0.5 to 50% by weight of water and/or an organic solvent or solvent mixture and from 0.5 to 59.5... | 10/28/2003 |
| 6630018 | Colored and coated plateletlike pigments The invention relates to a platelet-shaped pigment having high luster and high covering power or high transparency, consisting of a transparent, inorganic, platelet-shaped matrix which can contain an additional constituent, characterized in that the addit... | 10/07/2003 |
| 6620233 | Goniochromatic luster pigments which are based on titanium dioxide-coated siliceous platelets heated in a reductive atmosphere Goniochromatic luster pigments are based on titanium dioxide-coated silicatic platelets which have been heated in a reducing atmosphere and which comprise at least one layer packet comprising A) a colorless coating having a refractive index nࣘ1.8 and ... | 09/16/2003 |
| 6596070 | Interference pigments 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 coating having a refractive index nࣙ2.0, (B) a colorless coating having a refractiv... | 07/22/2003 |
| 6596061 | Inorganic anti-corrosive pigments and method for the production thereof Inorganic anti-corrosive pigments consist of surface-coated solids having a grain size of 0.1 to 75 μm. In order to improve the resistance of the paints and coatings containing such pigments, firstly Mn3 (PO4)2 and second... | 07/22/2003 |
| 6596072 | Product and method for coloring concrete Pigment-containing granules for use in coloring cement. The granules comprise at least one pigment selected from the group consisting of maganese oxide and iron oxide and a binder. The binder is a hydrophilic clay, and is preferably pozzolan.... | 07/22/2003 |
