INK SET FOR STEREOLITHOGRAPHY, STEREOLITHOGRAPHIC ARTICLE, AND METHOD FOR PRODUCING STEREOLITHOGRAPHIC ARTICLE

WIPO Patent Application WO/2018/143303

A1

The present invention addresses the problem of providing: an ink set for stereolithography which is for obtaining a stereolithographic article exhibiting excellent mechanical properties and excellent dimensional accuracy; a stereolithographic article formed using the ink set for stereolithography; and a method for producing the stereolithographic article using the ink set for stereolithography. An ink set for stereolithography according to the present invention is provided with a model material composition and a support material composition. The model material composition includes: monofunctional ethylenically unsaturated monomers (A) which have a Tg of 80˚C or higher, and which do not have urethane groups; polyfunctional ethylenically unsaturated monomers (B) which have a ring structure, have a Tg of 180˚C or higher, and do not have urethane groups; an oligomer (C); and a photopolymerization initiator (D). The support material composition includes: 20-50 parts by weight of water-soluble monofunctional ethylenically unsaturated monomers (a); 20-49 parts by weight of polyalkylene glycol (b) including AO groups and/or PO groups; 35 or fewer parts by weight of a water-soluble organic solvent (c); and a photopolymerization initiator (d).

KITO KATSUYUKI (JP)
IZUMO TAEKO (JP)

PCT/JP2018/003296

August 09, 2018

January 31, 2018

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MAXELL HOLDINGS LTD (JP)

B29C64/40; B29C64/112; B33Y10/00; B33Y70/00; B33Y80/00; C08F2/44; C08F290/06

WO2016199611A1	2016-12-15
WO2016121587A1	2016-08-04

JP2016020474A	2016-02-04
JP2016132773A	2016-07-25

SAMEJIMA, Mutsumi et al. (JP)

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