METHOD FOR MANUFACTURING THIOURETHANE-BASED OPTICAL MATERIAL

摘要

The present invention relates to a method for manufacturing thiourethane-based optical material, and particularly to a method for manufacturing high-quality optical material having high yield without developing striae or white turbidity due to imbalanced polymerization, and is colorless, transparent and changeless. Provided is a method for manufacturing thiourethane-based optical material in which a polymerization composite, comprising a polythiol compound and a polyiso(thio)cyanate compound, is in-mold polymerized, and is characterized in that mixing, defoaming and injection into a mold are performed within the 21- 40°C temperature range. The thiourethane-based optical material manufactured according to the present invention can replace existing optical material and be widely used in a variety of industries.