| 摘要 |
PROBLEM TO BE SOLVED: To provide a photocurable resin composition that has low viscosity, is excellently handleable on photofabication, exhibits excellent long-term preservability and high curing sensitivity and affords smoothly a photo-cured product such as three-dimensional shaped matter having excellent mechanical properties, an optical three-dimensional shaping method using the composition and a curing accelerator used for the composition. SOLUTION: The photocurable resin composition comprises an ethylenically unsaturated compound and an active energy ray-sensitive radical polymerization initiator, where the ethylenically unsaturated compound comprises as a part thereof a tertiary amino group-containing acrylate compound (I) represented by general formula (I) [wherein R<SP>1</SP>and R<SP>2</SP>are the same or different and are each an alkyl or aralkyl group; R<SP>3</SP>is an (m+n)-valent acrylate residue; m and n are each independently an integer of 1-5; and m+n is 2-6]. The optical shaping method comprises using the composition. COPYRIGHT: (C)2007,JPO&INPIT
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