A polymerizable Norrish Type II photoinitiators includes an optionally substituted benzophenone group or an optionally substituted thioxanthone group exhibiting improved compatibility with and solubility in radiation curable compositions. Radiation curable compositions and inkjet inks can contain these polymerizable Norrish Type II photoinitiators, exhibiting low extractable amounts of the photoinitiators and their residues after curing.
一种可聚合的Norrish Type II光
引发剂,包括一个可选取代的苯甲酰苯基团或一个可选取代的
噻吩基团,具有与辐射可固化组合物更好的相容性和溶解性。这些可聚合的Norrish Type II光
引发剂可以包含在辐射可固化组合物和喷墨油墨中,经过固化后,其可提取的光
引发剂及其残留物的量很低。