PHOTOCURABLE MOLDING, IMPREGNATING AND COATING COMPOSITIONS

摘要

Photocurable molding, impregnating and coating compositions based on unsaturated polyester resins containing UV sensitizers, wherein the sensitizers are acylphosphine oxide compounds of the general formula A preferred sensitizer is 2,4,6-trimethylbenzoyldiphenyl-phosphine oxide which is employed with or without conventional UV sensitizers, preferably benzil-dimethylketal. The compositions can be cured to give moldings and coatings.