发明名称 |
PROCESS FOR PRODUCING RESIN FOR OPTICAL MATERIAL |
摘要 |
<p>Disclosed is a process for producing effectively a high performance optical material (e.g. a lens) made of a polyurethane resin, which is transparent and colorless without a strain. In this process, the optical material is produced without causing striation or clouding by polymerizing a polymerizable composition comprising a polythiol compound and a polyiso(thio)cyanate compound, and characterized in that a water content in the composition is 10 to 300 ppm.</p> |
申请公布号 |
EP2842978(A1) |
申请公布日期 |
2015.03.04 |
申请号 |
EP20140187734 |
申请日期 |
2007.10.09 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
KAWAGUCHI, MASARU;KUMA, SHIGETOSHI;TANAKA, MAMORU;KOBAYASHI, SEIICHI |
分类号 |
C08G18/38;G02B1/04 |
主分类号 |
C08G18/38 |
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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