发明授权
US5310769A Process for the production of polyamine mixtures of the
polyamino-polyaryl-polymethylene series
失效
制备聚氨基 - 聚芳基 - 聚亚甲基系列多胺混合物的方法
- 专利标题： Process for the production of polyamine mixtures of the polyamino-polyaryl-polymethylene series
- 专利标题（中）： 制备聚氨基 - 聚芳基 - 聚亚甲基系列多胺混合物的方法
-
申请号： US877684申请日： 1992-05-01
-
公开(公告)号： US5310769A公开(公告)日： 1994-05-10
- 发明人: Christian Konig , Manfred Gallus , Reinhold Wullner , Franz-Moritz Richter , Rudolf Uchdorf , William C. Forester
- 申请人： Christian Konig , Manfred Gallus , Reinhold Wullner , Franz-Moritz Richter , Rudolf Uchdorf , William C. Forester
- 申请人地址： DEX Leverkusen PA Pittsburgh
- 专利权人： Bayer Aktiengesellschaft,Miles Inc.
- 当前专利权人： Bayer Aktiengesellschaft,Miles Inc.
- 当前专利权人地址： DEX Leverkusen PA Pittsburgh
- 主分类号： B01J27/10
- IPC分类号： B01J27/10 ; C07B61/00 ; C07C209/78 ; C07C211/50 ; C07C263/10 ; C07C265/14 ; C08G18/76 ; C08G18/00
摘要：
A process for production of polyamines of the diphenylmethane series through a condensation reaction of aniline with formaldehyde in the presence of an acid catalyst, neutralization of the acid catalyst after reaction completion, and distillation of the resultant polyamine mixture is described. The key feature of the process is the abrupt increase in reaction temperature after the condensation reaction or after the first rearrangement step.
公开/授权文献
- US4207736A Rotary piston machine 公开/授权日：1980-06-17
信息查询
