| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a urethane (meth)acrylate compound providing an active energy ray-curable material having high heat resistance and a high refractive index. <P>SOLUTION: The compound is obtained by reacting an alcohol compound represented by a general formula (1) with a compound selected from 2-methacryloyloxyethyl isocyanate, 2-acryloyloxyethyl isocyanate, and 1,1-bis(acryloyloxymethyl)ethyl isocyanate (in the formula, R<SB POS="POST">1</SB>to R<SB POS="POST">8</SB>are hydrogen atoms, Ak is a straight or branched alkylene group having 2 to 4 carbons, and m and n are 1). <P>COPYRIGHT: (C)2013,JPO&INPIT |
