发明名称 |
METHOD FOR MANUFACTURING RESIN FOR THIOURETHANE-BASED OPTICAL MATERIAL USING UNIVERSAL POLYISOCYANATE COMPOUND, RESIN COMPOSITION, AND OPTICAL MATERIAL MANUFACTURED THEREBY |
摘要 |
<p>Disclosed is a method of producing a high-quality thiourethane-based optical material using a general-purpose polyisocyanate compound. According to the method, the pH of a polythiol compound is adjusted to 3.1 to 7 to prevent the occurrence of whitening, which is a problem of the prior art arising from the dissolution of a pressure-sensitive adhesive from a pressure-sensitive adhesive tape upon lens casting. The°pH adjustment increases the reaction rate of a resin composition including the polythiol compound. The use of the polythiol compound whose pH is adjusted enables the production of a thiourethane-based optical material that does not suffer from whitening at the edges of the optical lens and nonuniformity polymerization. Further disclosed are a resin composition for a thiourethane-based optical material, and an optical material including a resin produced by the method.</p> |
申请公布号 |
EP2682430(A4) |
申请公布日期 |
2014.08.27 |
申请号 |
EP20120752802 |
申请日期 |
2012.03.02 |
申请人 |
KOC SOLUTION CO.,LTD. |
发明人 |
JANG, DONG GYU;ROH, SOO GYUN;KIM, JONG HYO |
分类号 |
C08L75/04;C07C321/02;C08G18/06;C08K5/37;G02B1/04 |
主分类号 |
C08L75/04 |
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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