Grânulos de pigmento, seu processo de preparação e seu uso

• Main Authors: Friedrich Holger, Holtmann Udo, BÜTJE KAI
• Format: Patent
• Language: Portuguese
• Published: 12.04.2022
• Subjects: ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; PREPARATION OF CARBON BLACK; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; USE OF MATERIALS THEREFOR; WOODSTAINS

processo para o preparo de grânulos de pigmento e o uso dos mesmos. a presente invenção refere-se a grânulos de pigmento e a um processo para a preparação dos mesmos e seu uso. Pigment granule comprises a compressed or briquetted core and at least a granulated outer layer, where the core contains an organic or an inorganic pigment and at least an auxiliary agent, and the granulated outer layers respectively contains a compressed or briquetted- organic and/or inorganic pigment, and an auxiliary agent, where at least one pigment is not compressed or briquetted in at least one granulated outer layer. Independent claims are included for: (1) a procedure for the manufacture of pigment granules comprising (a) mixing one or more organic or inorganic pigment with one or more auxiliary agent; (b) compressing or briquetting the mixture to obtain composite; (c) mincing the composite into grains and powder; (d1) separating grains from the powder, where the fraction greater than 80 mu m, preferably greater than 100 mu m, serves as core-fraction and optionally subjecting to rounding and/or coating with one or more auxiliary agent, where the coating step can takes place before the rounding step, and both the steps can take place at the same time and the product obtained will remain in the production process, while the other fraction gets discharged from the process or recycled; or (d2) reducing the composite into complete powder, which is completely granulated on the core-fraction and grain serves as core-fraction, where one or more auxiliary agents are added and the obtained granulated product can be coated with one or more auxiliary agent; (e) granulating at least an outer layer of the obtained product by addition of one or more organic and/or inorganic pigment, where mixing organic and/or inorganic pigment or before mixing with one or more auxiliary agent mixture, adding one or more auxiliary agent during subsequent roles, subjecting organic or inorganic pigment, mixture of organic or inorganic pigment and at least a auxiliary agent before compressing or briquetting to obtain a rolled granule and coating the rolled granule with one or more auxiliary agent; and (2) a procedure for dyeing of building material comprising mixing the pigment granules with the building material (0.1-10 wt.%) or by asphalt.