| 发明名称 |
METHOD FOR PRODUCING (POLY)EPISULFIDE COMPOUND FOR OPTICAL MATERIAL |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a (poly)episulfide for an optical material in a method for producing a (poly)episulfide by reacting a (poly)epoxy compound with thiourea in which the content of calcium in the thiourea is ≤0.1 wt.%. <P>SOLUTION: The method for producing a (poly)episulfide compound for an optical material is a method for producing a (poly)episulfide by reacting a (poly)epoxy compound with thiourea in which the content of calcium in the thiourea is ≤0.1 wt.%. <P>COPYRIGHT: (C)2012,JPO&INPIT |
| 申请公布号 |
JP2011251940(A) |
申请公布日期 |
2011.12.15 |
| 申请号 |
JP20100126929 |
申请日期 |
2010.06.02 |
| 申请人 |
MITSUBISHI GAS CHEMICAL CO INC |
发明人 |
KOSHIISHI EIJI;TAKEUCHI MOTOHARU |
| 分类号 |
C07D303/34;C08G75/08;G02B1/04 |
主分类号 |
C07D303/34 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
