Verfahren zur Herstellung von Polyaminen und Polyisocyanaten
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
DE69212782(D1)
申请公布日期
1996.09.19
申请号
DE1992612782
申请日期
1992.11.27
申请人
BAYER CORP., PITTSBURGH, PA., US
发明人
SCHILLING, STEVEN LYLE, GLEN DALE, WV 26038, US;BLUE, CLARENCE D., W-4047 DORMAGEN 1, DE;ADKINS, RICKY L., NEW MARTINSVILLE, WV 26155, US