| 摘要 |
PURPOSE:To improve sensitivity to visible light by incorporating at least a specified nongaseous ethylenically unsaturated compound and a specified iron allene complex and a specified sensitizer. CONSTITUTION:This photopolymerizable composition contains at least one kind of ethylenically unsaturated compound nongaseous at normal temperature and the sensitizer and the iron allene complex represented by the formula I in which each of R<1> and R<2> is, independently, 1-12C alkyl, 2-12C alkenyl or such alkynyl, or the like; R<2> may form a condensed polycyclic compound with the benzene ring; p is 0 or 1; each of R<3> and R<4> is, independently, H or 1-12C alkyl; X is S, Se, or the like; and Y is BF4, PF6, AsF6, or the like, thus permitting the obtained composition to exhibit high sensitivity to visible light, and to be able to use a low energy exposure light source, and to expose a large number of photosensitive materials and to develop them in a given time. |
