Polymerizable composition for polythiourethane optical material, polythiourethane optical material obtained from the polymerizable composition, and polymerization catalyst for polythiourethane optical material

摘要

The polymerizable composition for a polythiourethane optical material of the present invention includes (A) a polymerization catalyst for a polythiourethane optical material, (B) at least one compound selected from an isocyanate compound and an isothiocyanate compound, and (C) a compound containing one or more mercapto groups, wherein said polymerization catalyst for a polythiourethane optical material (A) includes (a1) a zinc compound, (a2) a compound represented by the following general formula (1) , and (a3) a sulfonic acid represented by the following general formula (2):
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ R 5 (5SO 3 H) n €ƒ€ƒ€ƒ€ƒ€ƒ(2)