COMPOSITION FOR OPTICAL MATERIAL |
|||||||
| 申请号 | EP11852983 | 申请日 | 2011-11-07 | 公开(公告)号 | EP2660260A4 | 公开(公告)日 | 2014-06-11 |
| 申请人 | MITSUBISHI GAS CHEMICAL CO; | 发明人 | TAKEMURA KOUHEI; HORIKOSHI HIROSHI; | ||||
| 摘要 | The present invention relates to a composition for an optical material, which is capable of suppressing occurrence of polymerization unevenness called striae, in particular, striae to be caused in high-powered lenses with sharp curves, and more specifically relates to a composition for an optical material including: a polymerization catalyst having a mass ratio of dibutyltin dichloride to monobutyltin trichloride of 97.0/3.0 to 100.0/0.0; a polythiol compound; and a polyiso(thio)cyanate compound. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈