URETHANE RESIN COMPOSITION FOR HIGH-REFRACTIVE OPTICAL MATERIAL HAVING EXCELLENT HEAT RESISTANCE AND LIGHT TRANSMITTANCE

摘要

The present invention relates to an optical resin composition consisting of isocyanate and thiol. The purpose of the present invention is to provide a urethane resin composition for an optical material having excellent heat resistance and light transmittance without damaging other properties such as impact resistance, chemical resistance, coloring uniformity, and processability. The urethane resin composition for the high-refractive optical material contains isophorone diisocyanate and 1,2,3-triazine-2,4,6-trione,1,3,5-tris(6-isocyanadohexyl) as isocyanate and pentaerythritol tetrakis mercapto propionate and 4-mercaptomethyl-3,6-dithia-1,8-octanedithiol as thiol.;COPYRIGHT KIPO 2015