The present invention relates to anionic photoinitiator compounds, compositions containing them, and methods of using them having structure (I): wherein X and Y are independently selected from the group consisting of a direct single bond and -C(=O)-, wherein at least one of X and Y is -C(=O)-; R?1 and R2¿ are independently selected from the group consisting of H and substituted phenyl, wherein both R?1 and R2¿ are not H; and wherein neither -X-R1 nor -Y-R2 is -C(=O)H. The anionic photoinitiators have improved storage stability, without loss of photosensitivity, even when stored with polymerizable or crosslinkable monomer, oligomer, or crosslinkable polymer species.
展开▼
机译：本发明涉及具有结构（I）的阴离子光引发剂化合物，包含它们的组合物和使用它们的方法：其中X和Y独立地选自直接单键和-C（＝ O）-，其中X和Y中的至少一个是-C（＝ O）-; R 1和R 2独立地选自H和取代的苯基，其中R 1和R 2都不是H。并且其中-X-R1和-Y-R2都不是-C（＝ O）H。阴离子光引发剂即使在与可聚合或可交联的单体，低聚物或可交联的聚合物种类一起存储的情况下，也具有改善的存储稳定性，而不会损失光敏性。
展开▼
