发明申请
US20050165258A1 Method of producing pure 1,1-bis-(4-hydroxyphenyl)-3,3,5- trimethylcyclohexane
有权
纯1,1-双 - （4-羟基苯基）-3,3,5-三甲基环己烷的制备方法
- 专利标题： Method of producing pure 1,1-bis-(4-hydroxyphenyl)-3,3,5- trimethylcyclohexane
- 专利标题（中）： 纯1,1-双 - （4-羟基苯基）-3,3,5-三甲基环己烷的制备方法
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申请号： US11013822申请日： 2004-12-16
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公开(公告)号： US20050165258A1公开(公告)日： 2005-07-28
- 发明人: Kazuhiko Yao , Kenji Ekawa
- 申请人： Kazuhiko Yao , Kenji Ekawa
- 优先权： JP2004-014188 20040122; JP2004-331416 20041116
- 主分类号： C07C37/84
- IPC分类号： C07C37/84 ; C07C39/17
摘要：
A method of producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane comprising: crystallizing a phenol adduct of 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane from a solution comprising 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane and phenol; washing the phenol adduct with a washing solution comprising phenol and water; decomposing by heating the washed phenol adduct in an aqueous solvent to remove phenol from the phenol adduct, thereby obtaining pure 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane.
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