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1. (WO2017153586) FUSED FILAMENT PRINTING

Pub. No.:    WO/2017/153586    International Application No.:    PCT/EP2017/055711
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Sat Mar 11 00:59:59 CET 2017
IPC: B29C 67/00
C08G 69/36
C08G 69/26
C08L 77/06
C08L 77/02
Applicants: DSM IP ASSETS B.V.
Inventors: ZOETELIEF, Wilhelmus, Frederikus
STROEKS, Alexander, Antonius, Marie
DUIS, Patrick, Gerardus
Title: FUSED FILAMENT PRINTING
Abstract:
The invention relates to a method for forming a three-dimensional object by fused filament fabrication comprising the step of selectively dispensing a polymer composition containing a semi-crystalline copolyamide in accordance with the shape of a portion of a three-dimensional object, characterized that the semi-crystalline copolyamide comprises: a) At least 70 wt.% of aliphatic monomeric units derived from i. Aminoacid A, or ii. diamine B and diacid C, and b) At least 0.5 wt.% of further monomeric units derived from a cyclic monomer, wherein wt.% is with respect to the total weight of the semi-crystalline copolyamide. The invention relates also relates to objects attainable by this method and to the use of the said semi-crystalline copolyamide in fused filament fabrication.