PHOTORADIAL- AND PHOTOCATION-CURABLE COMPOSITION

摘要

The invention provides a curable composition which is cured by both photoradical-curing mechanism and photocation-curing mechanism and is improved in curability. The invention relates to a curable composition which is cured by both photoradical-curing mechanism and photocation-curing mechanism, which comprises (A) a vinyl polymer having in the molecule two or more groups represented by the general formula (1): -OC(O)C(R^a)=CH₂ (1) (wherein R^a is hydrogen or an organic group having 1 to 20 carbon atoms) with the proviso that at least one of the groups is present at a molecular end and (B) an epoxy compound and/or an oxetane compound, characterized in that the concentration of N-containing compounds in the component (A) is 1000ppm or below and the concentration thereof based on the component (B) is 2300ppm or below.