US 12,403,647 B2
Photo fabrication resin composition, model material composition, and photo-cured product thereof, and photo fabrication composition set
Hiroshi Ota, Kyoto (JP); and Katsuyuki Kito, Kyoto (JP)
Assigned to MAXELL, LTD., Kyoto (JP)
Appl. No. 17/637,926
Filed by Maxell, Ltd., Kyoto (JP)
PCT Filed Sep. 10, 2020, PCT No. PCT/JP2020/034322
§ 371(c)(1), (2) Date Feb. 24, 2022,
PCT Pub. No. WO2021/049576, PCT Pub. Date Mar. 18, 2021.
Claims priority of application No. 2019-166550 (JP), filed on Sep. 12, 2019.
Prior Publication US 2022/0281157 A1, Sep. 8, 2022
Int. Cl. C08F 2/46 (2006.01); B29C 64/112 (2017.01); B29C 64/40 (2017.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); C08F 2/50 (2006.01); C08G 61/04 (2006.01); C08L 33/06 (2006.01); C08L 79/04 (2006.01); B29K 105/24 (2006.01)
CPC B29C 64/112 (2017.08) [B29C 64/40 (2017.08); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); C08L 33/06 (2013.01); C08L 79/04 (2013.01); B29K 2105/24 (2013.01)] 12 Claims
 
1. A model material composition to be used in a material-jet optical shaping method, the model material composition comprising a polymerizable compound,
wherein the polymerizable compound comprises, each based on 100 parts by mass of the model material composition:
19 to 59 parts by mass of at least one monofunctional ethylenically unsaturated monomer (A);
5 to 50 parts by mass of at least one polyfunctional ethylenically unsaturated monomer (B) having a ring structure other than an isocyanurate ring structure; and
5 to 50 parts by mass of at least one polyfunctional ethylenically unsaturated monomer (C) having an isocyanurate ring structure,
wherein a total amount of the polymerizable compounds contained in the model material composition is 80 to 98 parts by mass based on 100 parts by mass of the model material composition,
wherein a homopolymer of the monofunctional ethylenically unsaturated monomer (A) has a glass transition temperature Tg of 80° C. or higher, and
wherein a ratio of a total mass of the monomer B and the monomer C to a total mass of the monomer A is 0.5 to 10.