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1. (WO2018106705) 3D PRINTED CORE-SHELL FILAMENT AND METHOD OF 3D PRINTING A CORE-SHELL FILAMENT

Pub. No.:    WO/2018/106705    International Application No.:    PCT/US2017/064734
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Wed Dec 06 00:59:59 CET 2017
IPC: B29C 64/00
B41J 2/01
D06P 5/30
H04N 1/034
Applicants: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
ETH ZURICH
Inventors: LEWIS, Jennifer, A.
MUELLER, Jochen
RANEY, Jordan, R.
SHEA, Kristina
Title: 3D PRINTED CORE-SHELL FILAMENT AND METHOD OF 3D PRINTING A CORE-SHELL FILAMENT
Abstract:
A 3D printed core-shell filament comprises an elongated core radially surrounded by an outer shell with a barrier layer in between, where the elongated core comprises a ductile polymer and the outer shell comprises a stiff polymer having a Young's modulus higher than that of the ductile polymer. A lightweight lattice structure may comprise a plurality of the 3D printed core-shell filaments deposited in layers.