| abstract |
The invention relates to a composition with at least one polymerizable binder, wherein the composition contains a photoinitiator mixture which contains (a) at least one diacylgermanium compound of general formula (I) n n n n n n n n n n in which R 1 , R 2 independently of each other are a linear C 1-4 -alkyl, or C 2-4 -alkenyl radical, which can be substituted by one or more polymerizable groups; R 3 , R 4 independently of each other are in each case H, halogen, a branched or linear C 1-4 -alkyl or —O—C 1-4 -alkyl radical; R 5 , R 6 , R 7 independently of each other are in each case H, halogen, a linear C 1-20 -alkyl, -alkenyl, -alkoxy or -alkenoxy radical, which can be interrupted by one or more —O—, —S— or —NR 8 — radicals and substituted by one or more polymerizable groups; and R 8 independently is in each case H, a C 1-20 -alkyl, -alkenyl, -alkoxy or -alkenoxy radical, (b) at least one α-diketone and (c) at least one accelerator, as well as the use of the composition for example for producing a filling composite. |