| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly sensitive polymerizable composition, because a material curable with a little light illumination energy, i.e. a highly sensitive material is required according to the improvement of productivity. SOLUTION: The polymerizable composition comprises (A) anα-aminoketone-based photopolymerization initiator represented by general formula (1) (wherein, R<SP>1</SP>and R<SP>2</SP>are each a substituent; R<SP>3</SP>and R<SP>4</SP>are each a hydrogen atom or a substituent; X is a divalent aromatic condensed ring group; and Ar<SP>1</SP>is an aryl group or a heterocyclic group), (B) a sensitizer and (C) a radically polymerizable compound. COPYRIGHT: (C)2009,JPO&INPIT
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