PHOTOCURING COMPOSITION FOR COATING SUBSTRATES WITH AN ABRASION-RESISTANT TRANSPARENT OR TRANSLUCENT FILM

摘要

43 A photopolymerizable olefinic composition containing a mineral filler suitable for forming on a substrate an abrasion resistant protective film. The mineral filler essentially consists of silica or alumina particles having been made organophilic and compatible with olefinic monomers by grafting organic groups on the surface thereof. When the filler is silica thus modified and when the refraction indexes of the organic phase and of the particles are near to each other, the anti-abrasive film is transparent.