发明名称 METHOD FOR PRODUCING OPTICAL MATERIAL
摘要 The present invention provides a method for producing an optical material comprising a predetermined (a) compound (b) compound (c) compound (d) compound and (e) compound wherein the compounding method minimizes the occurrence of a defect where peeling traces on a lens linger. Going through a first step to fifth step minimizes the defect where peeling traces linger. First step: a step for dissolving the (b) compound into the (a) compound to obtain a first solution. Second step: a step for adding the (e) compound to the first solution obtained in the first step and then mixing to obtain a second solution not comprising the (d) compound. Third step: a step for adding the (c) compound to the second solution obtained in the second step to obtain a reaction mixture. Fourth step: a step for adding the (d) compound to the reaction mixture obtained in the third step and then mixing to obtain a resin composition for an optical material. Fifth step: a step for cast molding the resin composition for an optical material obtained in the fourth step and then polymerizing to obtain the optical material.
申请公布号 IN8382DEN2014(A) 申请公布日期 2015.05.08
申请号 IN2014DELNP8382 申请日期 2014.10.08
申请人 MITSUBISHI GAS CHEMICAL COMPANY INC. 发明人 TAKEMURA KOUHEI;OKADA HIROYUKI;HORIKOSHI HIROSHI
分类号 C08G75/08;C08G18/38;G02B1/04 主分类号 C08G75/08
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