PROCESS FOR LAYERWISE CONSTRUCTION OF SHAPED BODIES WITH A NOVOLAC-POLYURETHANE-BASED BINDER SYSTEM

The invention relates to a process for layerwise construction of bodies comprising at least one novolac in a solid free-flowing form, an isocyanate component and a first solvent as a liquid to-be-printed component, wherein in a preferred embodiment of the invention the solvent further comprises a ca...

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Bibliographische Detailangaben
Hauptverfasser:	Dennis BARTELS, Natascha HURKES, Arkadius KAMINSKI, Antoni GIENIEC
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CASTING CHEMISTRY COMPOSITIONS BASED THEREON FOUNDRY MOULDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS POWDER METALLURGY SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a process for layerwise construction of bodies comprising at least one novolac in a solid free-flowing form, an isocyanate component and a first solvent as a liquid to-be-printed component, wherein in a preferred embodiment of the invention the solvent further comprises a catalyst dissolved in the first solvent, to a corresponding construction material mixture, to a component system for producing the bodies by 3-D printing and to three-dimensional bodies, in the form of molds and cores for metal casting, produced by this process. La invención se refiere a un método para la construcción en capas de cuerpos que comprenden por lo menos un novolac en una forma sólida de flujo libre; un componente isocianato y un primer solvente como un componente líquido para ser imprimido, en donde el solvente de acuerdo con una modalidad preferida de la invención también tiente un catalizador disuelto en el primer solvente; una mezcla de material de construcción correspondiente; un sistema de componentes para producir los cuerpos por medio de impresión en 3D, y cuerpos tridimensionales producidos de acuerdo con este método en forma de moldes y núcleos para la fundición de metales.