发明名称 |
Polyisocyanate compounds, process for producing the same and optical materials using the same |
摘要 |
<p>Provided are a novel polyisocyanate compound which is useful as a starting material of an optical material having a high refractive index, a low dispersion and excellent optical characteristics, a process for producing this compound at good efficiency, and an optical material prepared from the polyisocyanate compound.</p> |
申请公布号 |
EP0972772(A1) |
申请公布日期 |
2000.01.19 |
申请号 |
EP19990113583 |
申请日期 |
1999.07.08 |
申请人 |
HOYA CORPORATION |
发明人 |
KITAHARA, YOSHITAKA;JIANG, JIAN |
分类号 |
C07D339/08;C08G18/77;G02B1/04;(IPC1-7):C07D339/08 |
主分类号 |
C07D339/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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