POLYMERISABLE COMPOSITION

摘要

Compounds of formula (I), wherein X is CH, C-CH3, C-Cl, C-O-C1-C8alkyl or N; R is C1-C6alkyl, benzyl, CH2COOR3 or a group (a); R1 is C1-C8alkoxy, C1-C12alkyl, halogen, NO2, benzyloxy or phenyloxy, wherein the phenylring in the benzyloxy or phenyloxy group is unsubstituted or substituted by C1-C12alkyl, C1-C6alkoxy, halogen or CF3; R2 is C1-C8alkoxy, C1-C12alkyl, benzyloxy or phenyloxy, wherein the phenylring in the benzyloxy or phenyloxy group is unsubstituted or substituted by C1-C12alkyl, C1-C6alkoxy, halogen or CF3; R3 is hydrogen, C1-C12 alkyl or benzyl; Y is unsubstituted or C1-C6alkoxy-substituted C1-C6alkyl, or Y is C1-C6alkoxy, halogen, CF3, NO2, CF3O, benzyloxy or phenyloxy, wherein the phenylring in the benzyloxy or phenyloxy group is unsubstituted or substituted by C1-C12alkyl, C1-C6alkoxy, halogen or CF3 or, if n is two and both Y are alkoxy these alkoxy groups may form a dioxolane or dioxane fused to the phenyl of the styril residue; n is 1 to 4, preferably 1; and L is an anion; are useful as photoinitiators, especially in combination with borate anions.