发明名称 |
A PROCESS FOR PREPARING POLYAMINES AND POLYISOCYANATES |
摘要 |
Disclosed herein is an improved process for preparing a polyamine mixture derived by reacting aniline with formaldehyde in the presence of an acid catalyst the improvement comprising mildly reducing the polyamine mixture by a process step comprising catalytically or chemically hydrogenating the polyamine mixture in the presence of a metal catalyst. |
申请公布号 |
EP0546400(A3) |
申请公布日期 |
1993.09.01 |
申请号 |
EP19920120306 |
申请日期 |
1992.11.27 |
申请人 |
MILES INC. |
发明人 |
SCHILLING, STEVEN LYLE;BLUE, CLARENCE D.;ADKINS, RICKY L. |
分类号 |
C08G12/08;C07C263/10;C08G18/76;C08G73/02;C08G101/00;(IPC1-7):C07C263/10;C08G18/32 |
主分类号 |
C08G12/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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