| 摘要 |
<p>Photocurable coloured compositions Compounds of the formula I, II or III < IMG > I < IMG > II < IMG > III in which Ar is a sulfur-containing aromatic radical, R1 and R2 are a monovalent hydrocarbon radical which is substituted or unsubstituted or R1 and R2 together form alkylene, oxaalkylene or azaalkylene, R3 is a direct bond or a divalent hydrocarbon radical, X is a monovalent amino group and X' is a divalent amino or diamino group, are excellent photoinitiators for the photocuring of coloured, in partcular pigmented, compositions containing an olefinically unsaturated, photopolymerisable binder.</p> |
