Composition for urethane-based plastic lens, urethane-based plastic lens obtained from the composition, and method for producing the same

摘要

(A) at least one ester compound selected from the group consisting of an isocyanate compound, an isothiocyanate compound and an isocyanato-containing isothiocyanate compound, (b) a hydroxyl compound, a mercapto compound, (C) a tertiary amine, and (d) a Lewis acid, and a plastic lens obtained by heat-curing the composition, and at least one active hydrogen compound selected from the group consisting of The present invention provides a method of manufacturing the above plastic lens, which can produce an optically uniform plastic lens with a long pot life and within a short time.