PIGMENTOS PRETOS DE OXIDO DE FERRO,PROCESSO PARA A SUA PREPARACAO,BEM COMO SUA APLICACAO

• Main Authors: WILFRIED BUROW, GERD-HERMANN SCHULTEN, PETER KIEMLE
• Format: Patent
• Language: Portuguese
• Published: 10.10.1989
• Edition: 4
• Subjects: 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

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.