Patent ID: 6740466
Filing Date: 2004-05-25
Classification: G03F

Abstract:
A photopolymerizable composition comprising:a polymerizable compound having an ethylenically unsaturated bond; at least one of a compound represented by formula (8): wherein Q3 represents an oxygen atom or sulfur atom; R1 and R2 each independently represents a hydrogen atom, an aliphatic group, an aromatic group, or heterocyclic group; L1 and L2 each independently represents a methine group which may be substituted; m represents an integer of 1 to 3; Rd, Re, Rf and Rg each independently represents a hydrogen atom or a monovalent substituent selected from the group consisting of hydrogen, halogen, alkyl, alkoxy, alkylsulfonyl, cyano, and nitro; Rh represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or a heterocyclic group;and an organoboron compound represented by the following formula (A): wherein Ra1, Ra2 and Ra3 each independently represents an aliphatic group, an aromatic group, a heterocyclic group, or â€”SiRa5Ra6Ra7 where Ra5, Ra6, and Ra7 each independently represents an aliphatic group or an aromatic group; Ra4 represents an aliphatic group; and Y+ represents a group capable of forming a cation.