PHOTOCURABLE RESIN COMPOSITION FOR OPTICAL STEREOLITHOGRAPHY AND THREE-DIMENSIONAL ARTICLE

摘要

PPROBLEM TO BE SOLVED: To provide a photocurable resin composition capable of yielding a three-dimensional article having a high rigidity (Young's modulus, flexural modulus) and a high toughness (bending resistance, impact resistance). PSOLUTION: The photocurable resin composition comprises (A) a cationically polymerizable compound having two or more bisphenol structures and one or more hydroxyl groups, (B) a cationically polymerizable compound other than the component (A), (C) a cationic photoinitiator, (D) a radically polymerizable compound, (E) a radical photoinitiator, and (F) multilayer polymer particles having a core and a shell layer, provided that the shell layer contains functional group-modified rubber polymer particles having at least one reactive functional group chosen from the group consisting of an epoxy group, a hydroxyl group, a (meth)acryloyl group and an oxetanyl group. The composition 1 is used as a material for preparing cured layers 6 and 7 in a photofabrication method to yield the three-dimensional article. PCOPYRIGHT: (C)2009,JPO&INPIT