发明申请
- 专利标题： PROCESS FOR THE PRODUCTION OF ALIPHATIC ISOCYANATES
- 专利标题（中）： 生产异构异氰酸酯的方法
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申请号： US12775715申请日： 2010-05-07
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公开(公告)号： US20110275854A1公开(公告)日： 2011-11-10
- 发明人: Rory D. Daussin , Paula A. Cameron , Lao-Jer Chen , Jorge Jimenez , Joerg-Peter Gehrke
- 申请人： Rory D. Daussin , Paula A. Cameron , Lao-Jer Chen , Jorge Jimenez , Joerg-Peter Gehrke
- 申请人地址： US MI Midland
- 专利权人： Dow Global Technologies Inc.
- 当前专利权人： Dow Global Technologies Inc.
- 当前专利权人地址： US MI Midland
- 主分类号： C07C263/10
- IPC分类号： C07C263/10
摘要：
The present invention is a process for aliphatic or cycloaliphatic isocyanate. The process comprises reacting an aliphatic or cycloaliphatic primary amine, with phosgene in the presence of an inert solvent wherein the initial reaction temperature is between 100 and 130° C. and the temperature is subsequently ramped to 150 to 180° C. during the course of the reaction, the solvent to amine weight ratio is 95:5 to 80:20, the total reaction pressure is maintained between 50 and 350 psig and the amine is rapidly dispersed in the phosgene through injection in a region of high efficiency mixing.
公开/授权文献
- US08455695B2 Process for the production of aliphatic isocyanates 公开/授权日：2013-06-04
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