abstract |
(57) [Summary] [Object] To provide a benzyl ketal derivative containing a (meth) acryloyloxy group, which is a novel photoinitiator. [Configuration] R 1 , R 2 , represented by the following general formula (I), A benzyl ketal derivative in which at least one of R 3 , R 4 , R 5 and R 6 contains a (meth) acryloyloxy group. General formula (I): |