| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a resin for optical use which combines a high Tg and a high refractive index, and its application. <P>SOLUTION: The resin for optical use has a copolymer of a sulfur-containing (meth)acrylate and an isobornyl (meth)acrylate as a constituent. The number average molecular weight of the copolymer is preferably in the range of 5,000-500,000. The sulfur-containing (meth)acrylate is preferably a (meth)acrylate having a sulfur-containing cyclic structure, a cyclic thiocarbonate structure, a cyclic dithiocarbonate structure, or a cyclic trithiocarbonate structure. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
