发明授权
- 专利标题： Process for producing a resin having a large refractive index
- 专利标题（中）： 制造折射率大的树脂的方法
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申请号： US09450762申请日： 1999-11-30
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公开(公告)号： US06534589B1公开(公告)日： 2003-03-18
- 发明人: Yuichi Yoshimura , Motoharu Takeuchi , Atsuki Niimi , Hiroshi Horikoshi , Masaaki Takasuka
- 申请人： Yuichi Yoshimura , Motoharu Takeuchi , Atsuki Niimi , Hiroshi Horikoshi , Masaaki Takasuka
- 优先权： JP10-341927 19981201; JP10-370222 19981225
- 主分类号： C08L8100
- IPC分类号： C08L8100
摘要：
A process for producing a resin having a large refractive index which comprises curing an episulfide compound having one or more epithio structures represented by formula (1) in one molecule by polymerization in the presence of a polymerization catalyst and 0.001 to 3.0 parts by weight of a phenol derivative per 100 parts by weight of the episulfide compound. (R1 represents a hydrocarbon group having 1 to 10 carbon atoms, R2, R3 and R4 each represents hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, Y represents S, O, Se or Te and m and n each represents 0 or 1).