| abstract |
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. |