| 摘要 |
PURPOSE: To obtain high photosensitivity to near ultraviolet rays and lights in the visible spectral region and high heat and storage stability by incorporating a dicyclopentadienyl-bis-titanium metallocene compound to be used. CONSTITUTION: The photopolymerizable mixture is composed essentially of a polymer binder, a compound having a group polymerizable by a free radical, and a photoreducible dye. The metallocene compound to be used as the photoinitiator can be embodied by the dicyclopentadienyl-bis(2,4,6- trifluorophenyl)-titanium or -zirconium. This dicyclopentadienyl group can be substituted especially by a 1-4 C alkyl or phenyl or cyclohexyl group or a chlorine atom and these substituents can be combined with an alkylene group, and it is preferred to add the metallocene compound in an amount of 0.05-6weight% of the nonvolatile fraction of the mixture. |
