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| Number | Title | Issue Date |
| 7413600 | Composition for opaque coating, lamp with coating, and method of manufacture A composition for the manufacture of an opaque silvery coating on a glass surface is provided. The composition comprises a mixture of at least two metal powders. The metal powder mixture contains carbonyl iron and aluminum, and a carrier liquid for forming a suspens... | 08/19/2008 |
| 7410536 | Oxidation-stable iron oxide pigments, process for preparing them and their use The present invention relates to oxidation-stable iron oxide pigments which have a coating of at least one organic substance, to their preparation and to their use. ... | 08/12/2008 |
| 7387672 | Oxidation-stable iron oxide pigments, process for preparing them and their use The present invention relates to oxidation-stable iron oxide pigments which have a coating of at least one organic substance, to their preparation and to their use. ... | 06/17/2008 |
| 7347893 | Iron oxide pigments from mill scale The current invention relates to a method of manufacturing iron oxide pigments from mill scale. The mill scale is mixed with alien iron oxide and the resultant mixture is heated to a temperature of 200° C. to 900° C. in an oxidizing atmosphere to produce iron oxid... | 03/25/2008 |
| 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 |
| 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 |
| 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 |
| 7294192 | Heat-stable zinc ferrite colour pigments, process for preparing them and their use The present invention relates to zinc ferrite colour pigments, including a process for preparing and using them and, more particularly, the present invention relates to light-coloured zinc ferrite colour pigments having enhanced thermal stability, a magnesium conten... | 11/13/2007 |
| 7294191 | Pure-coloured, readily dispersible iron oxide red pigments with high grinding stability The present invention relates to pure-coloured, readily dispersible iron oxide red pigments having high grinding stability, to a process for preparing them, and to their use. ... | 11/13/2007 |
| 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 |
| 7220297 | Anti-corrosive pigments and method for making the same The invention relates to a paint and/or a coating composition including anti-corrosive pigment comprises a metal salt comprising a metal cation and an anion and a metal oxide or a metal hydroxide where the molar ratio of the total metal to the anion is in the range ... | 05/22/2007 |
| 7217485 | Toner for electrophotography, and image fixing process, image forming process, image forming apparatus and process cartridge using the same A toner for electrophotography contains a binder resin, a charge control agent, and a colorant. The colorant is a black iron oxide compound containing 10 to 45% by weight of titanium component calculated in terms of Ti atom in relation to Fe atom when measured by wa... | 05/15/2007 |
| 7156913 | Intensely colored red effect pigments The present invention relates to intensely colored red effect pigments comprising iron oxide-coated SiO2 flakes, where the total thickness of the effect pigments is not greater than 500 nm (+/−30 nm). The present invention likewise relates to processes ... | 01/02/2007 |
| 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 |
| 7128891 | Process of making metal containing iron oxide and iron sulfide based nanoparticle materials A method and structure for making magnetite nanoparticle materials by mixing iron salt with alcohol, carboxylic acid and amine in an organic solvent and heating the mixture to 200–360 C is described. The size of the particles can be controlled either by changing t... | 10/31/2006 |
| 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 |
| 7033614 | Bismuth oxychloride compositions and methods of rinsing A rinse-off composition comprising in percent by weight 0.10–10.00 of a dispersion of bismuth oxychloride 3.50–90.00 of a surfactant, 0.001–0.050 of a dye, 3.00–15.00 of an emollient and 10.00–80.00 of water; said dispersion of bismuth oxychloride containi... | 04/25/2006 |
| 6911075 | Pigments having improved coloristic properties and process for their preparation The invention relates to a process for preparing pigments, which comprises subjecting a crude pigment or mixture of crude pigments and a crystalline inorganic salt or mixture of crystalline inorganic salts together, essentially in ... | 06/28/2005 |
| 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 |
| 6811601 | Pigment preparations comprising alkoxylated polyethylenimine Pigment preparations comprising A) at least one organic or inorganic pigment and B) at least one ethoxylated and propoxylated and/or butoxylated polyethyleneimine. ... | 11/02/2004 |
| 6800127 | Pigment preparations The present invention relates to pigment preparations comprising polyamide particles with an average particle size of below 50 μm and a pigment of an average particle size below 0.2 μm. The inventive pigment preparations are useful for coloring high molecular weig... | 10/05/2004 |
| 6758894 | Strontium iron manganese black pigment A black pigment substantially free of objectionable transition metal materials is disclosed. This pigment is particularly useful for coloring glass since the absence of the transition metal gives it excellent recycling properties. The pigment is an alkaline earth (p... | 07/06/2004 |
| 6736892 | Pigment dispersions containing styrenated and sulfated phenol alkoxylates The present invention provides sulfated and carboxymethylated surfactants and dispersants produced by reacting a styrenated phenol alkoxylate with sulfamic acid and then neutralizing with a base such as ammonium hydroxide. The instant invention also provides pigment... | 05/18/2004 |
| 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 |
| 6699579 | Particulates of controlled dimension We make particulates, especially magnetic Fe--Co alloys having high magnetic permeability, of controlled dimensions, especially those having a narrow thickness size distribution centered around a median or target thickness in the range of about 0.1-1.0 μ... | 03/02/2004 |
| 6686042 | Optically variable pigments and foils with enhanced color shifting properties Pigment flakes are provided which can be used to produce colorant compositions having color shifting properties. The pigment flakes can have a symmetrical coating structure on opposing sides of a reflector layer, can have an asymmetrical coating structure... | 02/03/2004 |
| 6635107 | Pigment granulate for coloring building materials and method for producing the same The invention pertains to pigment granulates for the coloring of building materials and processes to manufacture such granulates. The pigment granulates are granulated from a mixture containing the pigment, at least one wetting agent and/or binder and/or ... | 10/21/2003 |
| 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 |
| 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 |
| 6602934 | Multicolor coating composition, coating film forming method and coated article This invention provides a multicolor coating composition comprising a vehicle and a metal oxide-coated silica flake pigment wherein a coating film resulting from baking of said coating composition and a coating film resulting from reheating of the former ... | 08/05/2003 |
| 6582814 | Rare earth-transition metal oxide pigments Rare earth-transition metal oxides are used as pigments. The rare earth-transition metal oxide pigments are preferably of the formula (Rex Tm)Oy, where Re is at least one rare earth element, Tm is at least one transition metal, x ran... | 06/24/2003 |
| 6579357 | BiOC1 pigment A bismuth oxychloride effect pigment exhibiting improved light stability has a discontinuous coating of hydrous iron oxide on the crystals of the bismuth oxychloride. The pigment is prepared by growing the bismuth oxychloride crystals, adding a hydrolyzab... | 06/17/2003 |
| 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 |
| 6428773 | Shadow-effect cosmetic composition The invention relates to a cosmetic composition, containing a four-layered interference pigment comprising an innermost layer of mica, a first outer layer of a colored pigment, a second outer transparent layer, and an outermost layer of a colored pigment,... | 08/06/2002 |
| 6398863 | Spindle-shaped hematite particles and process for making spindle-shaped hematite particles Spindle-shaped hematite particles obtained form the spindle-shaped goethite particles, can be prevented as highly as possible from causing destruction of particle shape when subjected to a heat-reduction step for producing magnetic spindle-shaped metal pa... | 06/04/2002 |
| 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 |
| 6372036 | Pigment preparation and its use especially in printing inks The present invention relates to a pigment preparation containing a mixture of coated or uncoated Al2 O3 flakes, and one or more special-effect pigments, and a phosphate derivative, and to the use thereof, especially in printing inks... | 04/16/2002 |
| 6372517 | Magnetic particles with biologically active receptors Magnetic particles for separating biological mixtures consist of nacreous luster pigments with magnetic properties coated with a biological polymer.... | 04/16/2002 |
| 6352586 | Water-dilutable coating compositions The present invention relates to a water-thinnable coating composition comprising binders, inorganic pigments, and, if desired, organic pigments and also further customary additives such as solvents, fillers, plasticizers, stabilizers, wetting agents, dis... | 03/05/2002 |
