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1. (WO2018142485) INK SET FOR STEREOLITHOGRAPHY, STEREOLITHOGRAPHIC ARTICLE, AND METHOD FOR PRODUCING STEREOLITHOGRAPHIC ARTICLE

Pub. No.:    WO/2018/142485    International Application No.:    PCT/JP2017/003471
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Wed Feb 01 00:59:59 CET 2017
IPC: B29C 67/00
B33Y 70/00
C08F 2/50
Applicants: MAXELL HOLDINGS, LTD.
マクセルホールディングス株式会社
Inventors: KITO, Katsuyuki
鬼頭 克幸
IZUMO, Taeko
出雲 妥江子
Title: INK SET FOR STEREOLITHOGRAPHY, STEREOLITHOGRAPHIC ARTICLE, AND METHOD FOR PRODUCING STEREOLITHOGRAPHIC ARTICLE
Abstract:
This ink set for stereolithography is provided with a model material composition and a support material composition. The model material composition includes, with respect to 100 parts by weight of the whole model material composition, 50-74 parts by weight of monofunctional ethylenically unsaturated monomers (A), 26-50 parts by weight of polyfunctional ethylenically unsaturated monomers (B), and 2-20 parts by weight of a photopolymerization initiator (C). (B) includes alkoxylated polyfunctional ethylenic unsaturated monomers, but does not include ethylenically unsaturated monomers having urethane groups. The support material composition includes, with respect to 100 parts by weight of the whole support material composition, 20-50 parts by weight of water-soluble monofunctional ethylenically unsaturated monomers (a), 20-49 parts by weight of polyalkylene glycol (b) including EO and/or PO, 35 or fewer parts by weight of a water-soluble organic solvent (c), and 5-20 parts by weight of a photopolymerization initiator (d). The ink set for stereolithography is capable of achieving a stereolithographic article exhibiting excellent dimensional accuracy.