ENERGY RAY-CURABLE COMPOSITION CONTAINING IODONIUM ALKYL FLUOROPHOSPHATE-BASED PHOTOACID GENERATOR

摘要

PROBLEM TO BE SOLVED: To provide an energy ray-curable composition and a cured product using an iodonium salt-based photoacid generator containing no element of high toxicity such as Sc and having high sensitivity (excellent in cationic polymerization performance) to active energy rays such as UV rays.

SOLUTION: The energy ray-curable composition comprises an iodonium alkyl fluorophosphate salt-based photoacid generator expressed by general formula (1) and a cationic polymerizable compound. In formula (1), R1 represents an organic group bonded to I (iodine); Rf represents an alkyl group in which 80% or more of hydrogen atoms are substituted with fluorine atoms; b represents the number of alkyl groups and an integer of 1 to 5; and b of Rf may be identical or different from one another.

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