Abstract: A polymerizable composition which may be used as an adhesive mass in a method for preparing an adhesive tape or as molding mass in a method for preparing molded articles is provided. The polymerizable composition contains: A) a thermal cationic initiator, or B) a combination of a cationic photoinitiator and a thermal free-radical initiator for inducing the polymerization of the cationically polymerizable monomers in such an amount that the heat energy released during polymerization is sufficient for cleaving the thermal initiator. The adhesive mass is curable via a local impulse a) of thermal energy orb) of thermal energy and/or radiation energy through frontal polymerization; or the molding mass is initially prepared by mixing all components and then molded into the desired shape, whereafter its frontal polymerization is induced by a local impulse a) of thermal energy and/or b) of radiation energy in order to prepare a cured molded article.