NEW OXIDATION RESISTANT, HEAT RESISTANT IRON OXIDE BLACK PIGMENTS, A PROCESS FOR THEIR PREPARATION AND THEIR USE

Isometric oxidation resistant and heat resistant iron oxide black pigments having a foreign metal content of less than 5 ppm of each of As, Pb and Ba, less than 200 ppm total of Ca, BaSO4, Zn, Sb and Cr and from 0.05 to 2% by weight, calculated as trivalent or tetra-valent oxides, of B, Al, Ga, Si,...

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Bibliographische Detailangaben
Hauptverfasser:	WILFRIED BUROW, GERD-HERMANN SCHULTEN, PETER KIEMLE
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY CINEMATOGRAPHY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F CONCRETE CORRECTING FLUIDS DYES ELECTROGRAPHY ELECTROPHOTOGRAPHY FILLING PASTES HOLOGRAPHY INKS INORGANIC CHEMISTRY LIME, MAGNESIA MAGNETOGRAPHY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHOTOGRAPHY PHYSICS POLISHES PREPARATION OF CARBON BLACK REFRACTORIES SLAG THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES TREATMENT OF NATURAL STONE USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Isometric oxidation resistant and heat resistant iron oxide black pigments having a foreign metal content of less than 5 ppm of each of As, Pb and Ba, less than 200 ppm total of Ca, BaSO4, Zn, Sb and Cr and from 0.05 to 2% by weight, calculated as trivalent or tetra-valent oxides, of B, Al, Ga, Si, Ge and Sn, are useful in coloring lacquers, thermoplastic synthetic resins and building materials as well as for low coercivity iron oxide black pigments in magnetic toners.