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AssigneeSkc Co., Ltd.
InventorsSeung Mo Hong, Jung Hwan Myung, Hyeon Myeong Seo, Junghwan Shin
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An embodiment relates to a polymeric composition for a polythiourethane-based optical material, wherein the polymeric composition, comprising a particular additive, may appropriately adjust the reactivity of an isocyanate such that viscosity is maintained low for a predetermined period of time, and thus is capable of preparing a high-quality polythiourethane-based optical material, without a complicated purification process. Moreover, a polythiourethane-based optical material according to an embodiment has not only a uniform refractive index, but also a low yellow index, and thus may be used as a variety of plastic optical lenses, such as an eyeglass lens or a camera lens and the like.
A polymeric composition for a polythiourethane-based optical material, the polymeric composition comprising:
Dependencies are inferred from the claim text.