发明授权
US07435856B2 Method of preparing dimethylcetene and, subsequently, polydimethylcetene from isobutyric anhydride
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从异丁酸酐制备二甲基十六烯，然后制备聚二甲基鲸烯的方法
- 专利标题： Method of preparing dimethylcetene and, subsequently, polydimethylcetene from isobutyric anhydride
- 专利标题（中）： 从异丁酸酐制备二甲基十六烯，然后制备聚二甲基鲸烯的方法
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申请号： US10545977申请日： 2004-02-20
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公开(公告)号： US07435856B2公开(公告)日： 2008-10-14
- 发明人: Reinhard Linemann , Serge Hub , Guillaume Le , Georges Martino-Gauchi
- 申请人： Reinhard Linemann , Serge Hub , Guillaume Le , Georges Martino-Gauchi
- 申请人地址： FR Colombes
- 专利权人： Arkema France
- 当前专利权人： Arkema France
- 当前专利权人地址： FR Colombes
- 代理商 Steven D. Boyd
- 优先权： FR0302219 20030221
- 国际申请： PCT/FR2004/000399 WO 20040220
- 国际公布： WO2004/076508 WO 20040910
- 主分类号： C07C45/87
- IPC分类号： C07C45/87
摘要：
The present invention relates to a process for the preparation of dimethylketene (DMK) and then of polydimethylketene (PDMK) by polymerization of DMK. More specifically, the DMK is obtained by pyrolysis by isobutyric anhydride (IBAN), the latter decomposing under the effect of heat (pyrolysis) to give isobutyric acid (IBA) and DMK. One mole of pyrolyzed IBAN gives one mole of IBA and one mole of DMK.
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