The present invention relates to radiation curable compositions (A) comprising—(a) at least one photoinitiator compound of formula (I) wherein Q is the residue of a hydroxy compound having 1 to 6 hydroxyl groups, and wherein x is a number that is at least 1 but no greater than the number of hydroxyl groups originally present in said hydroxy compound;—(b) at least one ethylenically unsaturated compound selected from monomers (b1) and/or from oligomers (b2); and—(c) optionally, at least one co-synergist which preferably is an amino co-synergist. The present invention further relates to photoinitiator compounds(a) and their preparation.
本发明涉及可辐射固化的组合物(A),包括-(a) 至少一种式(I)的光
引发剂化合物,其中 Q 是具有 1 至 6 个羟基的羟基化合物的残基,x 是至少为 1 但不大于所述羟基化合物中原有羟基数目的数字;-(b) 至少一种
乙烯基不饱和化合物,选自单体 (b1) 和/或低聚物 (b2);以及- (c) 可选地,至少一种助增效剂,最好是
氨基助增效剂。本发明进一步涉及光
引发剂化合物(a)及其制备。