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1. (WO2018036593) PROCESS FOR LAYERWISE CONSTRUCTION OF SHAPED BODIES WITH A NOVOLAC-POLYURETHANE-BASED BINDER SYSTEM

Pub. No.:    WO/2018/036593    International Application No.:    PCT/DE2017/100719
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Sat Aug 26 01:59:59 CEST 2017
IPC: C08G 18/54
B33Y 10/00
B29C 64/165
B22C 1/22
Applicants: ASK CHEMICALS GMBH
Inventors: BARTELS, Dennis
GIENIEC, Antoni
HURKES, Natascha
KAMINSKI, Arkadius
Title: PROCESS FOR LAYERWISE CONSTRUCTION OF SHAPED BODIES WITH A NOVOLAC-POLYURETHANE-BASED BINDER SYSTEM
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.