PHOTOACTIVATABLE NITROGEN-CONTAINING BASES BASED ON .ALPHA.-AMMONIUM KETONES, IMINIUM KETONES OR AMIDINIUM KETONES AND ARYL BORATES

摘要

This invention relates to .alpha.-ammonium ketones, iminium ketones oramidinium ketones in the form of their tetraaryl- ortriarylalkylborate salts which can be photochemically converted into amines,imines or amidines as well as to a process for their preparation.This invention also relates to base-polymerisable or cross-linkablecompositions comprising these .alpha.-ammonium ketones, iminium ketones oramidinium ketones in the form of their tetra- or triarylalkylborate salts, toa process for carrying out photochemically induced, base-catalysedreactions as well as to their use as photoinitiators for base-catalysedreactions.