Technological watch

CURABLE RESIN COMPOSITION FOR PHOTOFABRICATION, CURED OBJECT, AND THREE-DIMENSIONAL FABRICATED OBJECT

Provided are: a curable resin composition from which a three-dimensional fabricated object having both excellent heat resistance and excellent flame retardancy can be produced; a cured object formed from the composition; and a three-dimensional fabricated object comprising the cured object.?A curable resin composition for photofabrication according to the present invention comprises: one or more polymerizable monomers including a photopolymerizable monomer (A) having two or more photopolymerizable functional groups; a phosphorus-based flame retardant (B); and a photopolymerization initiator. A homopolymer of the photopolymerizable monomer (A) preferably has a glass transition temperature of 100°C or higher. The phosphorus-based flame retardant (B) is preferably a flame retardant based on an aromatic phosphoric acid ester. The phosphorus-based flame retardant (B) preferably has a liquid form at 23°C. The phosphorus-based flame retardant (B) is contained preferably in an amount of 15-45 parts by weight per 100 parts by weight of the polymerizable monomers. The polymerizable monomers preferably further include a urethane oligomer (C) having two or more urethane bonds per molecule.

Publication date: 07/08/2025

Number: WO2025164319A1 (A1)

Applicant: DIC CORP?[JP]

Inventor: SHIMIZU IKUMA?[JP]; NISHIDA SHOKO?[JP] (1)

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