COPOLYMER COMPOSITION, FOR HIGHLY REFRACTIVE OPTICAL LENS, COMPRISING THIOEPOXY COMPOUND, POLYISO

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The present invention relates to a copolymer composition for a highly refractive optical lens, said composition comprising a thioepoxy compound, a polyisocyanate compound, and a polythiol compound, and more particularly, to a copolymer composition and a method for manufacturing an optical lens which does not have a surface ring defect even in a high power lens, the mold for which has a large radius of curvature. In the present invention provides the copolymer composition comprising the thioepoxy compound, the polyisocyanate compound, and a bis(2-mercaptoethyl) sulfide, the optical lens in which the composition is polymerized, and the method for manufacturing the optical lens. The copolymer composition and the optical lens in which the composition is polymerized, according to the present invention, exhibit very few surface ring defects on the surface of the lens even in a high-power lens (having an optical power of approximately at least -6.00), exhibits superior surface precision, and can be manufactured at a high yield. According to the present invention, ring defects on the surfaces of lenses are rare even in a highly refractive high-power lens, and a thioepoxy-based optical material, which has superior surface precision, can be used to manufacture lenses at a high yield. The optical lens manufactured according to the present invention can replace existing optical lenses and can be utilized in various areas, including lenses for glasses, polarized lenses, and camera lenses.