Light-sensitive bis-trichloromethyl-s-triazine compounds, a process for their production and light-sensitive mixtures containing such compounds

Abstract From the Canadian patent

Light-sensitive compounds are described which have the formula, (I), wherein R1 and R2 denote H or alkyl R3 and R4 denote, H or 4,6-bis-trichloromethyl-s-triazin-2-yl R5 and R6, denote H or halogen, alkyl, alkenyl or alkoxy and Ar, denotes a mononuclear to trinuclear aromatic group. These compounds are suitable as photoinitiators for free-radical polymerizations or as photolytic acid donors for acid-cleavable compounds and for, cross-linking and color formation reactions. They are distinguished by a high sensitivity in various spectral ranges.