发明授权
- 专利标题： Production process and purification process of 4-hydroxy-benzoic acid long chain ester
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申请号： US15130180申请日： 2016-04-15
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公开(公告)号： US09790165B2公开(公告)日： 2017-10-17
- 发明人: Yusuke Kita , Toshihide Komatsu , Takaya Hisano , Kuniyo Yanagawase , Mio Tsuchiya
- 申请人： UENO FINE CHEMICALS INDUSTRY, LTD.
- 申请人地址： JP Osaka
- 专利权人： UENO FINE CHEMICALS INDUSTRY, LTD.
- 当前专利权人： UENO FINE CHEMICALS INDUSTRY, LTD.
- 当前专利权人地址： JP Osaka
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2015-093389 20150430; JP2015-093393 20150430; JP2015-107751 20150527; JP2015-107753 20150527; JP2015-230427 20151126; JP2016-034199 20160225
- 主分类号： C07C69/88
- IPC分类号： C07C69/88 ; C07C67/28 ; C07C67/03 ; C07C67/58 ; C07C67/52
摘要：
The present invention relates to a production process of a 4-hydroxy-benzoic acid long chain ester, that includes a step of reacting a 4-hydroxy-benzoic acid short chain ester with an aliphatic alcohol in the presence of a metal catalyst. The present invention also relates to a purification process of a 4-hydroxy-benzoic acid long chain ester, that includes a step of adding an acid aqueous solution to a crude composition including the 4-hydroxy-benzoic acid long chain ester, separating the crude composition to an organic phase and a water phase and extracting the organic phase.
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