SQUARYLIUM COMPOUND AND PHOTOPOLYMERIZABLE COMPOSITION FOR SHORT-WAVELENGTH LIGHT SOURCE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a photopolymerizable composition having excellent sensitivity to light in a wavelength region of a short-wavelength light source.

SOLUTION: The photopolymerizable composition includes a squarylium compound represented by general formula (I) (wherein R1-R3are the same or different and represent an alkyl group which may have a substituent, an alkoxyl group which may have a substituent or the like), a radical initiator, and a compound having an ethylenically unsaturated double bond.

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