| abstract |
The invention relates to novel photoinitiators of formula I, wherein A is -O-, -CH2, -CH(CH3)- or -C(CH3)2-, and R is methyl or trimethylsilyl, and R may in addition be hydrogen when A is simultaneously the group -C(CH3)2-. The invention relates also to compositions comprising (A) at least one ethylenically unsaturated compound, (B) a photoinitiator of formula I, (C) optionally further binders or additives, (D) optionally further photoinitiators or co-initiators. Composition comprising (A) an ethylenically unsaturated compound that contains at least one aminoacrylate, (B) a photoinitiator of formula II or III, (C) optionally farther binders or additives, (D) optionally further photoinitiators or co-initiators. |