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| Number | Title | Issue Date |
| 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 |
| 7316741 | Ceramic colorants in the form of nanometric suspensions Described herein are ceramic colorants consisting of suspensions of particles of nanometric dimensions, their production and use. ... | 01/08/2008 |
| 7282264 | Composition and method for controlling moisture A composition and method which exhibits enhanced moisture sealing properties, suitable for use with flooring materials, such as concrete, and flooring installations, such as carpeting, wood, tiles, etc. are provided. The composition is preferably non-water-based and... | 10/16/2007 |
| 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 |
| 7217318 | Nacreous pigment and method for the manufacture thereof In a method for the manufacture of a nacreous pigment, in which a multi-layer film is produced by vacuum evaporation coating on a substrate and, after release from the substrate, the particles thus produced are comminuted to pigment particles of a desired size, vapo... | 05/15/2007 |
| 7208039 | Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. T... | 04/24/2007 |
| 7060126 | Multilayered luster pigments The invention relates to multilayered luster pigments based on metallic substrates, which are completely surrounded by a plurality of layers, where these layers comprise at least one layer pack (A) having a colorless dielectric layer of a material with a refractive ... | 06/13/2006 |
| 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 |
| 6997982 | Pigment with a metallic luster The invention relates to a pigment with a metallic luster, comprising a plate-like non-metallic substrate having a thickness lower an 200 nm, which is entirely coated with a metallic layer. ... | 02/14/2006 |
| 6929690 | Pigment with a metallic luster A pigment with a metallic luster, comprising a wafer-like substrate made of aluminium dioxide having a thickness of more than 250 nm and less than 1 μm, which is fully enveloped by a metal layer. ... | 08/16/2005 |
| 6890643 | Floor polishing composition A floor polishing composition containing a film-formable organic high molecular material as the main component, which further contains at least scaly particles. ... | 05/10/2005 |
| 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 |
| 6866711 | Composite pigment composition containing silica A composite pigment is provided with the composite pigment including a dense inorganic material and silica. The pigment composition is characterized by a CTAB surface area of greater than about 20 m2/g; a BET surface area of greater than about 15 m2 | 03/15/2005 |
| 6818051 | Pigments The invention relates to particles with an opalescent effect, which have a particle size in the range from 5 μm to 5000 μm, comprising monodisperse spheres having a diameter of 50 nm to 2 μm with a standard deviation of less than 5% in a packed and regularly orde... | 11/16/2004 |
| 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 |
| 6783586 | Easy to disperse, high durability TiO2 pigment and method of making same The present invention relates to a TiO2 pigment coated sequentially in a wet treatment process with hydrous silica and hydrous alumina both in the presence of citric acid wherein the resulting pigment is coated with from 1 to 4% amorphous alumina based on... | 08/31/2004 |
| 6770130 | Silica composite oxide particles and method of producing the same Silica composite oxide particles comprising silica and a metal oxide other than silica, the content of the metal oxide other than silica being from 30 to 50 mol %, and a coefficient of variation in the particle diameter being not larger than 30%. The silica composit... | 08/03/2004 |
| 6767633 | Transparent medium having angle-selective transmission or reflection properties and/or absorption properties The invention relates to a transparent medium comprising multilayer pigments having angle-selective reflection or transmission properties and/or absorption properties, and to their use, in particular in transparent thermal insulation systems (TTIs). ... | 07/27/2004 |
| 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 |
| 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 |
| 6492029 | Method of enameling substrates comprised of glass materials; enamel composition used; and products obtained thereby The invention relates to a novel method of enameling substrates comprised of glass or vitroceramic material, according to which method the enamel composition contains graphite as a component, with the aim of improving the mechanical properties of the enam... | 12/10/2002 |
| 6413307 | Method of producing a pigment containing gold In a method of manufacturing a gold containing pigment, a vaporizable gold compound, a vaporizable compound of another metal, which includes an oxide or a nitride with a melting temperature above the melting temperature of gold, and a reaction gas consist... | 07/02/2002 |
| 6334893 | Pigment mixture The present invention relates to pigment mixtures containing at least two components component A being Al2 O3 flakes coated with one or more metals, metal oxides and/or metal sulfides and component B being acicular or spherical color... | 01/01/2002 |
| 6270566 | Process for colouring building materials A process is disclosed for coloring building materials with inorganic pigments in the form of microgranulates. The granulates comprise one or more pigments and one or more compounds selected from boron, aluminum, silicon, titanium, zinc and tin.... | 08/07/2001 |
| 6214106 | Silane treated inorganic pigments The present invention provides a process for the production of hydrophobic inorganic oxide products which comprises reacting the inorganic oxide particles with organohalosilanes, preferably organochlorosilanes, to produce hydrophobic organosilane coated i... | 04/10/2001 |
| 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 |
| 6132504 | Multilayer interference pigment with absorbent central layer Multilayer interference pigment consisting of a central, absorbing layer and alternating layers of a material of low refractive index and of a metal or of a material of high refractive index either side of the central layer, the material of low refractive... | 10/17/2000 |
| 6077341 | Silica-metal oxide particulate composite and method for producing silica agglomerates to be used for the composite A silica-metal oxide particulate composite comprising silica agglomerates having voids formed by random stacking of scaly silica primary particles, and metal oxide particulates supported on the surfaces, and the inner surfaces in the voids, of the silica ... | 06/20/2000 |
| 5976237 | Pigment process for durable pigments Improved coated inorganic pigments having a first coating of Al2 O3, SiO2, or optionally other oxide such as a source of P2 O5, or mixtures thereof, an optional coating of ZrO2, SnO2,... | 11/02/1999 |
| 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 |
| 5853476 | Process for coloring concrete using compacted inorganic granules A method for coloring cementitious systems using compacted inorganic granules, wherein said compacted inorganic granules comprise an inorganic pigment and a dispersing agent. Particularly, a method for coloring cementitious systems using compacted inorgan... | 12/29/1998 |
| 5792250 | Process for the production of inorganically coated pigments and fillers This invention relates to a process for the production of inorganically coated pigments and fillers and to the use thereof.... | 08/11/1998 |
| 5766335 | Colored luster pigments The invention relates to colored luster pigments consisting of a transparent or metallic reflecting core, of a coating consisting of at least one silicon oxide of the composition SiO0.25 to SiO0.95 and of further optional coatings, t... | 06/16/1998 |
| 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 |
| 5733364 | Goniochromatic luster pigments with aluminum coating Goniochromatic luster pigments based on multiply coated platelet-shaped metallic substrates comprising at least one layer packet of A) a layer consisting essentially of silicon oxide, silicon oxide hydrate, aluminum oxide and/or aluminum oxide hydrate, and B) ... | 03/31/1998 |
| 5656074 | Pigment which is substantially free of water-soluble salts and confers corrosion resistance Anticorrosive compositions for use in paints comprise (i) zinc oxide with (ii) the reaction product of an acidic trivalent metal compound and a silicate or (iii) an aluminium/silicate material eg a clay.... | 08/12/1997 |
| 5653794 | Silane treated inorganic pigments The present invention provides a process for the production of hydrophobic inorganic oxide products which comprises reacting the inorganic oxide particles with organohalosilanes, preferably organochlorosilanes, to produce hydrophobic organosilane coated i... | 08/05/1997 |
| 5468289 | Surface-modified pigments The present invention relates to surface-modified pigments based on platelet-like substrates which, for improving the settling and redispersion behavior, have been recoated with a mixture comprising two metal oxides selected from the group consisting of s... | 11/21/1995 |
| 5401313 | Surface modified particles and method of making the same This invention relates to modifying the surface of particles for improved dispersion characteristics in aqueous, solvent, resinous, polymeric, cementitious or the like application systems. In particular, this invention relates to a pigment or filler parti... | 03/28/1995 |
| 5330571 | Inclusion pigments of zirconium silicate with included chromic oxide, a process for the preparation and use thereof Inclusion pigments are discolored having zirconium silicate as a casing component and chromium (III) oxide (Cr2 O3) as a discrete, included color compound. The included Cr2 O3 has a D50 value in the r... | 07/19/1994 |
