Patent ID: 7169535

Claim:
A photosensitive composition comprising an ethylenically unsaturated monomer, a photopolymerization initiator composition and a polymer binder, wherein the photopolymerization initiator composition contains a compound represented by the following formula (1-b), (2-1) or (2-3) and further contains a titanocene compound, a monoalkyltriaryl borate compound or an iron arene complex compound: CBr 3 —(C═O)—X—R 3 formula (1-b) wherein R 3 is a substituent; X is —O— or —NR 4 —, in which R 4 is a hydrogen atom or an alkyl group, provided that R 3 and R 4 may combine with each other to form a ring; wherein Z 1 and Z 2 are each a halogen atom; X is a hydrogen atom or an electron-withdrawing group; Y 1 is —SO 2 —; Q 1 is an arylene group or a divalent heterocyclic group; L is a linkage group; W is a carboxyl group or its salt, sulfo group or its salt, a phosphoric acid group or its salt, hydroxyl group, quaternary ammonium group or a polyethyleneoxy group; n is 0 or 1; wherein Q 3 is an alkyl group, an aryl group or a heterocyclic group; X 1 , X 2 and X 3 are each a halogen atom; m is an integer of 0 to 4 and n is an integer of 1 to 5.