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7550297 |
Synthetic iron oxides and their use as an indicator of reduction in soils (IRIS)
The present invention present invention relates to improved IRIS Fe oxide paint compositions, to the dried (or cured) residue of such paints, and to devices upon which such paint compositions have...
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7503970 |
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...
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7442362 |
Method for preparing iron oxides
Highly pure iron oxides are prepared by reaction of metallic iron, in the form of microspheroidal particles or of scraps or cuttings, with an agitated aqueous solution of a mono- or polycarboxylic...
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7425234 |
Iron oxide pigments
The invention relates to iron oxide pigments comprising an average solid body diameter of 0.1 to 500 μm, and to the production and use thereof.
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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.
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7387671 |
Iron oxide pigments
Iron Oxide pigment containing greater than 99% iron oxide, having a chloride content of less than 0.1% and a mean solid diameter of 10 to 500 μm and methods of making the same are disclosed.
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7387669 |
Luster pigments having a pronounced glittering effect
Luster pigments having pronounced sparkle which are based on aluminum platelets which have been coated with iron oxide and have in the precoated state an average platelet size from 8 to 30 μm, an...
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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...
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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 Fe 3 O 4 (B) a colorless coating consisting...
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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.
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7291217 |
Non-toxic corrosion-protection pigments based on rare earth elements
A corrosion-inhibiting pigment comprising a rare earth element and a valence stabilizer combinded to form a rare earth/valence stabilizer complex. The rare earth element is selected from cerium,...
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7235127 |
Reduction- and oxidation-stable iron oxide black pigments having high colour strength for colouring plastics and building materials, their preparation and their use
The present invention relates to reduction- and oxidation-stable iron oxide black pigments having high color strength, the preparation thereof and the use thereof.
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7144455 |
Process for preparing yellow iron oxide pigments with CaCo3 precipitant
The present invention relates to a process for preparing yellow iron oxide pigments by the precipitation method from iron(II) chloride or iron(II) sulphate raw material and calcium carbonate...
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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...
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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)...
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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...
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7018458 |
Use of organofunctionally modified polysiloxanes containing phenyl derivatives as dispersants and wetting agents for fillers and pigments in aqueous pigment pastes and ink or paint formulations
The invention relates to the use of organofunctionally modified polysiloxanes containing phenyl derivatives as dispersants for preparing aqueous pigment formulations, paints, coating materials, and...
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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.
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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...
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6953504 |
Black pigment powder having a low value of magnetization, process for producing the same, and applications thereof
A black pigment powder having a low value of magnetization according to the present invention is characterized in that it consists of a composite oxide containing Fe 2 TiO 4 as a main component,...
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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.
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6908600 |
Method for obtaining pigments for ceramic and glass, and pigments obtained thereby
A method for obtaining pigments for ceramic and glass, particularly for substrates and coatings, including a step of adding a solution of an iron salt to at least one silicon addition agent...
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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...
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6866710 |
Inorganic spherical absorption pigments
The present invention relates to inorganic spherical absorption pigments which have a bimodal particle-size distribution, at least one color-providing layer and a final SiO 2 layer, and to the use...
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6858294 |
Coating fluid for forming hard coating and substrates covered with hard coating
A coating liquid for forming on a substrate surface a hard coat film which exhibits a high refractive index, being excellent in resistance to hot water, weather resistance, scuffing resistance,...
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6849196 |
Process for the preparation of magnetite particles and their use
The invention relates to a process for the preparation of magnetite particles and to their use.
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6849115 |
Method of manufacturing aluminum-substituted hematite
A method of manufacturing aluminum-substituted hematite represented by α-(Fe 1-x Al x ) 2 O 3 where x=0.01 to 0.15, by mixing an iron compound and an aluminum compound such that an atomic ratio...
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6818052 |
Method for production of iron ioxide pigments
The invention provides a process for the production of iron based pigments and anticorrosive additives from elemental iron comprising: a) reacting iron Fe° with ferric sulphate Fe 2 (SO 4 ) 3 and...
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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...
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6808806 |
Methods for producing imaged coated articles by using magnetic pigments
Methods and devices for producing images on coated articles are provided. The methods generally comprise applying a layer of magnetizable pigment coating in liquid form on a substrate, with the...
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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...
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6770689 |
Aqueous glittering ink
The glittering ink of the present invention contacts scaly glittering particles, a water-soluble resin, a water-soluble organic solvent, colorant and water. The said scaly glittering particles have...
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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...
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6767396 |
Process for the preparation of aqueous magnetic ink character recognition ink-jet ink compositions
A process for preparing an aqueous ink-jet ink composition for MICR applications is provided comprising preparing a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition,...
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6747073 |
Multilayer pearl lustre pigment
Multilayer pearl luster pigment on the basis of a platelet-shaped substrate comprising a material having a refractive index of more than 1.8, which comprises at least (i) a first layer of a...
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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...
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6740154 |
Paint colorant product and method
A neutral paint colorant has a composition comprising approximately 7.0% Color Index Pigment Yellow 42, 2.4% Color Index Pigment Red 101, and 4.0% Color Index Pigment Black 7. A pre-blended mixture...
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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...
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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...
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6695990 |
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...
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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...
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6689206 |
Process for producing yellow iron oxide pigments
The present invention relates to a process for producing a yellow iron oxide pigments comprising the steps of I) mixing preprecipitated FeCl 2 and an α-FeOOH nucleus produced by the “alkali”...
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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...
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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...
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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...
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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...
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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...
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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...
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6616747 |
Process for producing granular hematite particles
The process for producing granular hematite particles of the present invention, comprises passing an oxygen-containing gas through an aqueous ferrous nitrate solution in the presence of iron...
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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...
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