Patent ID: 7900558

Claim:
A radiation-curable polymerizable composition comprising (a) a hindered amine compound having no nucleophilic moiety, (b) a photo-acid generating agent and (c) a cationic polymerizable monomer, wherein the hindered amine compound having no nucleophilic moiety is represented by any one of the following Formulae II to III and Formulae V to VII: wherein R 1 represents branched alkyl group having 3 to 8 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms or an aralkyl group having 7 to 20 carbon atoms; R 2 represents a linear alkyl group having 1 to 4 carbon atoms, a branched alkyl group having 3 to 6 carbon atoms or an aryl group having 6 to 12 carbon atoms; R 3 represents a hydrogen atom, a linear alkyl group having 1 to 20 carbon atoms, a branched alkyl group having 3 to 6 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 20 carbon atoms or an alkenyl group having 2 to 20 carbon atoms; the two or more groups respectively represented by R 1 s in one molecule may be the same or different, and may be bonded with each other to form a ring structure; the two or more groups respectively represented by R 2 s in one molecule may also be the same or different, and may be bonded with each other to form a ring structure; Z represents a divalent organic group formed of hydrocarbons; and n and m each represent an integer from 1 to 3.