| 摘要 |
A photopolymerizable composition comprising photopolymerizable ethylenically unsaturated compounds and, as the photoinitiator, a benzoyl benzoate having the formula: …<CHEM>… wherein X is OR, NHR or NRR; R is an independently selected hydrocarbon of 1 to 30 carbon atoms, alkoxysubstituted alkyl of 2 to 12 carbon atoms or aminosubstituted alkyl of 2 to 12 carbon atoms; R' is an independently selected halogen or X; and n and m are independently selected integers from 0 to 3. |
