Radiation curable composition and method for producing the same

A method for producing a radiation curable composition, comprising:

• reacting an oxetane alcohol represented by the following formula 2 with an epihalohydrin in the presence of a basic catalyst at a temperature of 25° C. to 30° C., to thereby obtain a cationically polymerizable compound (a) represented by the following formula 1
• wherein, R1 represents a hydrogen atom or a methyl group, and m represents a number from 0 to 10, and
• wherein, R represents an alkyl group of 1 to 10 carbon atoms, R1 represents a hydrogen atom or a methyl group, n represents a number from 1 to 4, and m represents a number from 0 to 10 (step 1);
• mixing and stirring the obtained cationically polymerizable compound (a) with water (c) to thereby obtain a compatibilized aqueous solution (step 2);
• and then adding a photoinitiator (b) to the obtained aqueous solution (step 3).