发明授权
US08779182B2 Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
有权
同时生产二苯基甲烷系列的二异氰酸酯异构体的不同混合物的方法
- 专利标题： Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
- 专利标题（中）： 同时生产二苯基甲烷系列的二异氰酸酯异构体的不同混合物的方法
-
申请号： US13122162申请日： 2009-10-01
-
公开(公告)号： US08779182B2公开(公告)日： 2014-07-15
- 发明人: Johannes Lodewijk Koole , Adolf Daan Zijl , Robert Henry Carr
- 申请人： Johannes Lodewijk Koole , Adolf Daan Zijl , Robert Henry Carr
- 申请人地址： US TX The Woodlands
- 专利权人： Huntsman International LLC
- 当前专利权人： Huntsman International LLC
- 当前专利权人地址： US TX The Woodlands
- 代理商 Robert A. Diaz
- 优先权： EP08165930 20081006
- 国际申请： PCT/EP2009/062724 WO 20091001
- 国际公布： WO2010/040675 WO 20100415
- 主分类号： C07C263/00
- IPC分类号： C07C263/00 ; C07C263/20
摘要：
Process for the simultaneous and continuous production of two different mixtures of predominantly 4,4′-MDI and 2,4′-MDI in a single-step suspension melt crystallisation process whereby a mixed diisocyanate feed stream [MIx] is used to produce simultaneously two mixed diisocyanate streams [MIy] and [MIz] wherein x=80 to 92, y=97 to 99 and z=60 to 80 preferably x=82 to 88, y=97.2 to 98.5 and z=63 to 70 where x, y and z are percentages by weight of the 4,4′-MDI isomer contained in the diisocyanate isomer mixture.
公开/授权文献
信息查询
