| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a composition of high refractive index which can be utilized as an optical material, and to provide a cured product of a high refractive index. <P>SOLUTION: O-phenyl benzyl acrylate (OPBA) and p-phenyl benzyl acrylate (PPBA) which are an isomer of phenyl benzyl acrylate are mixed by a specific ratio, whereby the composition is provided which has a high refractive index suitable as an optical material, and a low viscosity. In addition, further, (meth)acrylate which has a fluorene skeleton is blended, whereby the composition is provided which has a low viscosity and a high refractive index, and further in which the cured product thereof has a high refractive index, is excellent in transparency, and has good light resistance and mold releasability. <P>COPYRIGHT: (C)2012,JPO&INPIT |
