发明公开
- 专利标题： Method for production of maleimides
- 专利标题（中）： 一种用于生产马来酰亚胺的过程。
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申请号： EP85107397.3申请日： 1985-06-14
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公开(公告)号： EP0165574A2公开(公告)日： 1985-12-27
- 发明人: Kita, Yuichi , Sakamoto, Kentaro , Baba, Masao , Okubo, Atsushi
- 申请人： Nippon Shokubai Kagaku Kogyo Co., Ltd
- 申请人地址： 1, 5-chome, Koraibashi Higashi-ku Osaka-shi Osaka-fu 541 JP
- 专利权人： Nippon Shokubai Kagaku Kogyo Co., Ltd
- 当前专利权人： Nippon Shokubai Kagaku Kogyo Co., Ltd
- 当前专利权人地址： 1, 5-chome, Koraibashi Higashi-ku Osaka-shi Osaka-fu 541 JP
- 代理机构： Fuchs, Luderschmidt & Partner Patentanwälte
- 优先权： JP123747/84 19840618; JP141309/84 19840710; JP42798/85 19850306; JP70071/85 19850404
- 主分类号： C07D207/448
- IPC分类号： C07D207/448
摘要：
A method for the production of maleimides, which comprises subjecting maleinamic acids to ring-closure imidation in an organic solvent capable of forming an azeotrope with water in the presence of an acid catalyst at a temperature in the range of 120° to 250°C while removing the formed water in the form of an azeotrope with said organic solvent and thereafter purifying the produced maleimides.
公开/授权文献
- EP0165574B1 Method for production of maleimides 公开/授权日：1992-08-19
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