发明申请
- 专利标题: PROCESS FOR PREPARING TETRAMETHYL GLYCOLIDE
- 专利标题(中): 制备四甲基甘氨酸的方法
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申请号: US12443784申请日: 2007-08-30
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公开(公告)号: US20100010276A1公开(公告)日: 2010-01-14
- 发明人: Bernd Vogel , Alexander May , Hermann Siegert
- 申请人: Bernd Vogel , Alexander May , Hermann Siegert
- 申请人地址: DE Darmstadt
- 专利权人: Evonik Roehm GmbH
- 当前专利权人: Evonik Roehm GmbH
- 当前专利权人地址: DE Darmstadt
- 优先权: DE102006055427.2 20061122
- 国际申请: PCT/EP2007/059038 WO 20070830
- 主分类号: C07C29/60
- IPC分类号: C07C29/60
摘要:
The present invention relates to a process for preparing tetramethylglycolide by heating a composition which comprises at least 50% by weight of 2-hydroxy-isobutyric acid and/or tetramethylglycolide to a temperature of at least 100° C.
公开/授权文献
- US07928251B2 Process for preparing tetramethyl glycolide 公开/授权日:2011-04-19
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