METHOD FOR PRODUCING OPTICAL MATERIAL

摘要

The present invention provides a method for producing an optical material comprising a predetermined compound (a), compound (b), compound (c), compound (d), and compound (e), wherein the compounding method minimizes the occurrence of a defect where peeling traces are left on a lens. Going through the first step to the fifth step described below minimizes the defect where peeling traces are left. First step: a step for dissolving the compound (b) into the compound (a) to obtain a first solution. Second step: a step for adding the compound (e) to the first solution obtained in the first step and then mixing to obtain a second solution not comprising the compound (d). Third step: a step for adding the compound (c) to the second solution obtained in the second step to obtain a reaction mixture. Fourth step: a step for adding the compound (d) to the reaction mixture obtained in the third step and then mixing to obtain a resin composition for an optical material. Fifth step: a step for cast-molding the resin composition for an optical material obtained in the fourth step and then polymerizing to obtain the optical material.