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Photoinitiator and photochemical polymerization constituent, radical generation manner, creation manner null of sensitive material and planographic printing edition for planographic printing edition creation
Photoinitiator and photochemical polymerization constituent, radical generation manner, creation manner null of sensitive material and planographic printing edition for planographic printing edition creation
PROBLEM TO BE SOLVED: To obtain a photopolymerizable composition capable of forming an image good in resolution and sensitivity by incorporating a radical generator and a specified dye. SOLUTION: The photopolymerizable composition contains the radical generator and the dyes represented by formulae I-III in which each of R1 and R2 is an H atom or a monovalent substituent; X is an oxygen or sulfur atom; each of L1 -L5 is a methine group; and each of B1 -B3 is a 5- or 6-membered aromatic or heterocyclic group. This photosensitive composition may optionally contain other components, such as a sensitizer, a polymerization accelerator, a thermopolymerization inhibitor, a heat meltable compound, an oxygen replenishing agent, and a plasticizer, so long as these do not obstruct attainment of the objects, thus permitting the obtained photopolymerizable composition to be written in by a light near a wavelength of 488nm or 532nm and to form an image.
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机译:解决的问题:通过掺入自由基产生剂和特定的染料来获得能够形成分辨率和灵敏度良好的图像的光聚合性组合物。溶液:可光聚合的组合物包含自由基产生剂和式I-III表示的染料,其中R1和R2各自为H原子或一价取代基; X是氧或硫原子; L 1 -L 5各自为次甲基。 B1-B3分别为5或6元的芳香族或杂环基。该光敏性组合物可以任选地包含其他组分,例如敏化剂,聚合促进剂,热聚合抑制剂,热熔性化合物,氧气补充剂和增塑剂,只要它们不妨碍目的的实现即可,因此允许将获得的光聚合性组合物用488nm或532nm附近的光写入并形成图像。
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