1/1 summary “photocratic curable composition, coating agent, optical material, photocratic cured body, and (meth) acrylate” is a curable composition Photochromic composition according to the present invention is characterized in that it comprises: a (meth) acrylate compound represented by the formula (1-x1) (wherein y represents an oxygen atom or a group 1 2 divalently represented by -nh- r and r independently represent a hydrogen atom or a methyl group, r represents an alkylene group 4 having from 1 to 6 carbon atoms, r represents an alkylene group having from 1 to 6 Carbon atoms, a cycloalkylene group having from 3 to 8 carbon atoms which may contain a double bond or an arylene group having from 6 to 10 carbon atoms and a represents a positive integer of 1 to 20); another radically polymerizable monomer is a photochromic compound. According to the present invention, it becomes possible to produce lenses that do not suffer from surface blurring caused by bleed or delamination during the production process, have excellent durability. and may show high photochromic performance.
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