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| Number | Title | Issue Date |
| 7438836 | Dispersion and coating preparation containing nanoscale zinc oxide The present invention provides a dispersion, which contains nano-sized zinc oxide particles, a coating preparation containing the dispersion, a process for the production of the dispersion, and a coating preparation containing the dispersion, and a use of the coatin... | 10/21/2008 |
| 7390355 | Zinc oxide 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 partic... | 06/24/2008 |
| 7250178 | Antimicrobial ceramic glaze An antimicrobial ceramic glazing composition comprising zinc borate for imparting antimicrobial characteristics to numerous ceramic products. A method for producing the antimicrobial glazing composition and ceramic products incorporating the antimicrobial glazing co... | 07/31/2007 |
| 7220793 | Curable film-forming composition exhibiting improved resistance to degradation by ultraviolet light A curable film-forming composition is provided comprising (i) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent; (ii) 10 to 90 percent by weight of a polymer containing a plurality of functio... | 05/22/2007 |
| 7220305 | Particulate metal oxide 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 ... | 05/22/2007 |
| 7217407 | Plasma synthesis of metal oxide nanoparticles The present invention is a method of increasing particle surface area and decreasing the concentration of over-sized particles in a process for making metal oxide particles, particularly nanoparticle TiO2, in an inlet-fed, plug flow, plasma reactor by vap... | 05/15/2007 |
| 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 |
| 7091262 | Particulate inorganic solids treated with organophosphinic compounds A treatment for particulate inorganic solids is provided. This treatment, which uses certain organophosphinic compounds, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these tr... | 08/15/2006 |
| 7056380 | Aqueous black enamel composition for glass substrate A water-based black enamel composition capable of being deposited on a glass substrate, especially on a glass sheet. The enamel composition includes: 20 to 40% by weight of water-soluble sodium silicate and/or potassium silicate; a water-soluble base, in an amount s... | 06/06/2006 |
| 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 |
| 6966998 | Security printing A method of providing covert security features for documents such as vouchers, packaged goods and banknotes in which the document is provided with a dopant. The dopant consisting of a material which can be identified by examination of its response to visible wavelen... | 11/22/2005 |
| 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 |
| 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 |
| 6818050 | Lacquers and paints and coating material systems Paint and coating material system comprising a) at least one solids component comprising at least one organic or inorganic white, black or chromatic pigment, organic or inorganic fillers, or mixtures thereof, and b... | 11/16/2004 |
| 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 |
| 6787585 | Coating material for multifunctional superphobic layers A coating material for interior walls and exterior facades has heat reflection and oleophobicity/hydrophobicity, properties. The material is either opaque to visible light and/or contains a material which provides opacity. It includes: a) at least one silane ... | 09/07/2004 |
| 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 |
| 6740316 | Anhydrous pigment paste and its use in cosmetics The invention relates to an anhydrous pigmentary paste comprising: from 20 to 32% by volume of at least one solid pigment, with respect to the total volume of the pigmentary paste, a pigment dispersion medium containing at least one anhydrous solvent s... | 05/25/2004 |
| 6730156 | Clustered particle dental fillers A filler comprising a substantially amorphous cluster comprising non-heavy metal oxide particles and heavy metal oxide. The filler can be mixed into a hardenable resin to provide radiopaque dental materials having desirable strength and aesthetic character. ... | 05/04/2004 |
| 6699316 | Process for the preparation of nano-zinc oxide dispersions stabilized by hydroxyl group-containing inorganic polymers The invention relates to a process for the preparation of nano-zinc oxide dispersions stabilized by hydroxyl group-containing inorganic polymers.... | 03/02/2004 |
| 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 |
| 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 |
| 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 |
| 6524381 | 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... | 02/25/2003 |
| 6517627 | Additive pigment powders 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 co... | 02/11/2003 |
| 6508876 | Colored interference pigment A colored interference pigment having a platelet-shaped layer as substrate, a coating of at least one metal oxide layer and, optionally, a further layer, at least two layers comprising or consisting of colorants.... | 01/21/2003 |
| 6503316 | 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... | 01/07/2003 |
| 6454848 | Infrared reflective color pigment The present invention provides new solid solutions having a corundum-hematite crystalline structure which are useful as inorganic color pigments. Solid solutions according to the present invention include a host component having a corundum-hematite crysta... | 09/24/2002 |
| 6447759 | Ultraviolet absorbent To provide an ultraviolet absorbent having high UV shieldability, especially UV-A shieldability, high transparency and good dispersibility. An ultraviolet absorbent, which comprises a flaky substrate coated with ultra-fin zinc oxide particles having a mean par... | 09/10/2002 |
| 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 |
| 6325847 | Precious metal color effect materials and production thereof 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, os... | 12/04/2001 |
| 6287377 | Universal paint tinting concentrates A universal tinting concentrate for both solvent- and water-based paints and coatings. The universal tinting concentrate is a composition which includes a colorant component, such as pigment, colorant, tinting agent and/or metal effect agent; a pigment di... | 09/11/2001 |
| 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 |
| 6176919 | Water-based paint useful for windshields The invention is directed to a water-based paint composition comprising sodium silicate, water, water-soluble base, metal oxide pigment, a fused silica and, optionally, a low-melting glass frit, soda-lime-silica glass particles and/or zinc oxide. It may f... | 01/23/2001 |
| 6174360 | Infrared reflective color pigment The present invention provides new solid solutions having a corundum-hematite crystalline structure which are useful as inorganic color pigments. Solid solutions according to the present invention include a host component having a corundum-hematite crysta... | 01/16/2001 |
| 6156115 | Multilayer interference pigment with transparent central layer Multilayer interference pigment consisting of a central layer of a transparent or semitransparent material of low refractive index and alternating layers of a metal or of a material of high refractive index and of a material of low refractive index either... | 12/05/2000 |
