| 摘要 |
PROBLEM TO BE SOLVED: To obtain a polymerizable composition developing a high sensitivity to an irradiating light at a wavelength in an ultraviolet range, especially an irradiating light at 365 nm or 405 nm without using a sensitizer, having a low degree of pigmentation. SOLUTION: This polymerizable composition comprises a polymerization initiator (A) of general formula (1) (R1, R2, R3 and R4 are each a substituent group selected from a hydrogen atom, an alkyl group and an aryl group; Z- is an arbitrary anion) and a compound (B) containing a radical-polymerizable ethylenically unsaturated bond.
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