Subject-matter of the present invention are novel 3-ketocoumarins, a process for their preparation and their use as photoinitiators in photopolymerization reactions, advantageously in photopolymerization reactions for inkjet printing inks. The invention also concerns a process for the photopolymerization of compositions also comprising said 3-ketocoumarins.
本发明涉及一种新型的3-酮基
香豆素,以及其制备方法和作为光
引发剂在光聚合反应中的应用,特别是在喷墨打印油墨的光聚合反应中的优点。本发明还涉及一种包含上述3-酮基
香豆素的组合物的光聚合反应的方法。