The invention relates to photoactive oligomeric aminoketones of general Formulae I and II, for compositions and inks curable with ultraviolet (UV) light. The oligomeric aminoketones of the general Formula I are made by condensation of aminoketones with aldehydes, and aminoketones of the general Formula II are made by acylation of aromatic amines with phthalic anhydride, followed by esterification with a polyol. The aminoketones provide good curability of energy curable coatings and inks with UV-A light, and are proposed for photoinitiator systems for low migration inks.
该发明涉及一般式I和II的光活性寡聚
氨酮,用于能够通过紫外线(UV)光固化的组合物和油墨。一般式I的寡聚
氨酮是通过
氨酮与醛的缩合制备的,一般式II的
氨酮是通过芳香胺与
邻苯二甲酸酐的酰化,然后与多元醇酯化制备的。这些
氨酮提供了对UV-A光固化涂料和油墨的良好固化性能,并被提议用于低迁移油墨的光
引发剂系统。