Oxetane-modified compound and photocurable compounds derived therefrom, their preparation and curable compositions containing them

摘要

Oxetane-modified compounds can be prepared in extremely high yield by reacting a compound (a) having a phenolic hydroxyl group with a monofunctional oxetane compound (b) having a primary hydroxyl group in the presence of at least one catalyst (c) selected from the group consisting of alkali metal alkoxides, alkali metal phenoxides, alkali metal carboxylates, crown ether complexes of these alkali metal compounds, metal hydroxides and metal hydrides. The obtained oxetane-modified compounds give photocuring compounds via reactions with ethylenically unsaturated compounds (d) having hydroxyl-reactive functional groups, and these photocuring compounds give alkali-soluble photocuring compounds via reactions with polybasic acid anhydrides (e). The photocuring compounds are useful as the photocuring component of photosetting compositions or photo- and thermo-setting compositions.