| abstract |
The highly sensitive photoinitiator for photopolymerizable compositions used for formation of a resin black matrix etc. contains the oxime ester type compound represented by the following general formula (I). R 1 is a hydrogen atom, an alkyl group, an alkenyl group, a heteroaryl group or a heteroarylalkyl group. R 1 may be bonded to X or Y to form a ring. R 2 is an alkanoyl group, an alkenoyl group, a cycloalkanoyl group, an arylloyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, heteroaryl group, heteroaryloyl group or alkylaminocarbonyl group. X is a bivalent aromatic hydrocarbon group and / or aromatic hetero group in which two or more rings are condensed. Y is a condensed ring group in which at least one ring is condensed to a monovalent group derived from a phenyl group or an aromatic heterocyclic monocyclic ring. |