| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a resin for a lens, having high heat resistance, capable of preventing breakage or deformation at mold release of the lens, and providing improved productivity of the lens when producing the episulfide lens using an episulfide compound as a raw material. <P>SOLUTION: The polymerization is carried out so that the content of the episulfide group present in the obtained lens may be≤0.3 mass% in the production of the episulfide lens obtained by casting and polymerizing a polymerizable composition containing a compound having two or more episulfide groups in the molecule. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
