POLYMERIZABLE COMPOSITION CONTAINING A CATALYST, OPTICAL MATERIAL OBTAINED FROM THE COMPOSITION, AND METHOD FOR PRODUCING THE OPTICAL MATERIAL

摘要

The polymerization catalyst for a polythiourethane-based optical material of the present invention includes a sulfonate represented by the following general formula (1). Furthermore, in the formula, R 1 , R 2 , R 3 and R 4 each independently represent an alkyl group having 1 to 18 carbon atoms, R 1 , R 2 , R 3 and R 4 may be bonded to each other to form a ring. R 5 represents a hydrogen atom or an alkyl group having 1 to 18 carbon atoms, and X represents a nitrogen atom or a phosphorus atom.