DIISOCYANATE COMPOSITION PREPARATION METHOD THEREOF AND OPTICAL MATERIAL USING SAME

Since a diisocyanate composition according to an embodiment of the present invention contains benzyl isocyanate having a methyl group in the composition in an amount of 5 to 200 ppm, it is possible to improve optical properties such as yellowness, striae, prevention of cloudiness and the like, and a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PAI JAEYOUNG, HAN HYUK HEE, MYUNG JUNG HWAN, KIM JEONGMOO
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Since a diisocyanate composition according to an embodiment of the present invention contains benzyl isocyanate having a methyl group in the composition in an amount of 5 to 200 ppm, it is possible to improve optical properties such as yellowness, striae, prevention of cloudiness and the like, and at the same time improve mechanical properties such as impact resistance and the like, and thus the diisocyanate composition may be usefully utilized to manufacture a high-quality optical material. 본 발명의 구현예에 따른 디이소시아네이트 조성물은 조성물 내 메틸기를 갖는 벤질 이소시아네이트를 5 ppm 내지 200 ppm의 양으로 포함함으로써, 황색도, 맥리 및 백탁 발생 방지 등의 광학적 특성을 개선함과 동시에 내충격성 등의 기계적 물성을 향상시킬 수 있으므로, 상기 디이소시아네이트 조성물은 고품질의 광학 재료를 제조하는데 유용하게 활용될 수 있다.