申请人:Sericol Group Limited
公开号:EP0079119A1
公开(公告)日:1983-05-18
The invention provides novel thioxanthone photini- tiators having the formula:
wherein R1 is alkyl, alkoxy, alkylthio, halogeno, nitro, amino, alkyl-amino, di-alkyl-amino, hydroxy alkyl-amino, alkanoylamino, benzoylamino, N-alkanoyl-N-benzoyl-amino, sulphonamido, or acetyl, R2 is alkylene, A is -COOH, -S03H, -OSO3H, or -O-CO-X-COOH (where X is such that HO-CO-X-COOH is a di- or tri-carboxylic acid of up to 8 carbon atoms), n is 0, 1, or 2 and m is 1 or 2, provided that when A is -COOH, m is 2, the aforesaid alkyl, alkoxy, alkanoyl, and alkylene residues containing up to 4 carbon atoms each, as the free acid or as a salt thereof. The photoinitiators may advantageously be used in water-based photopolymerizable compositions, e.g. for use in screen stencil production.
本发明提供了具有以下式子的新型硫杂蒽酮光敏剂:
其中 R1 是烷基、烷氧基、烷硫基、卤素、硝基、氨基、烷基氨基、二烷基氨基、羟基烷基氨基、烷酰氨基、苯甲酰氨基、N-烷酰基-N-苯甲酰氨基、磺酰氨基或乙酰基,R2 是亚烷基,A 是 -COOH、-S03H、-OSO3H、或-O-CO-X-COOH(其中 X 是 HO-CO-X-COOH 是碳原子数不超过 8 的二羧酸或三羧酸),n 是 0、1 或 2,m 是 1 或 2,条件是当 A 是-COOH 时,m 是 2,上述烷基、烷氧基、烷酰基和亚烷基残基各含有不超过 4 个碳原子的游离酸或其盐。这些光引发剂可以很好地用于水基光聚合组合物中,例如用于丝网模板生产。