tron beam curable composition 205 (See FIG. 2) comprising at least one monomer that contains at least two (meth)acrylate functional groups per molecule:##STR00001## in which n.gtoreq.2, and X is a hydrogen or a methyl group; R includes at least one alicyclic ring structure; and cures to a homopolymer with a glass transition temperature of about T.sub.g.gtoreq.50.degree.