Photopolymerizable composition.

摘要

A photopolymerizable composition comprising (i) a polymerizable compound having an addition polymerizable unsaturated bond, (ii) a compound represented by formula (Ia): a compound represented by formula (Ib): or a compound represented by formula (Ic): wherein A represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, an alkyl- or aryl-substituted nitrogen atom, or a dialkyl-substituted carbon atom; Y<1> represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, an aralkyl group, an acyl group, an alkoxycarbonyl group, or a substituted alkoxycarbonyl group; R<1> and R<2> each represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, or an alkyl group having from 1 to 18 carbon atoms which is substituted with R<3>O-, R<3>- @-, or a halogen atom (i.e., F, C l ,Br, and I), wherein R<3> represents a hydrogen atom or an alkyl group having from 1 to 10 carbon atoms, and B represents a dialkylamino group, a hydroxyl group, an acyloxy group, a halogen atom, or a nitro group; n represents 0 or an integer of from 1 to 4; and m represents an integer of from 1 to 20, and (iii) at least one compound selected from the group consisting of (a) a compound having a carbon-halogen bond, (b) an aromatic onium salt, (c) an organic peroxide, (d) a thio compound represented by formula (II): wherein R<4> represents an alkyl group, an aryl group, or a substituted aryl group; and R<5> represents a hydrogen atom or an alkyl group; or R<4> and R<5> are taken together to represent a non-metallic atom group necessary to form a 5- to 7-membered ring which may contain a hetero atom selected from oxygen, sulfur and nitrogen atoms, (e) a hexaarylbiimidazole, and (f) a ketoxime ester. The composition has high sensitivity in a broadened range of light of from the ultraviolet region to the visible region.