公开(公告)号：EP3558928B1

公开(公告)日：2021-01-20

申请号：EP17825817.4

申请日：2017-12-18

发明人： KNAUF, Thomas ,  WERSHOFEN, Stefan ,  GRUNER, Klaus-Gerd ,  HARTJES, Volker

IPC分类号： C07C209/78 ,  C07C209/54 ,  C07C209/60 ,  C07C211/48 ,  C07C211/50

公开(公告)号：EP3558927B1

公开(公告)日：2021-01-20

申请号：EP17816842.3

申请日：2017-12-18

发明人： KNAUF, Thomas ,  WERSHOFEN, Stefan ,  GRUNER, Klaus-Gerd ,  HARTJES, Volker

IPC分类号： C07C209/78 ,  C07C209/54 ,  C07C209/60 ,  C07C211/48 ,  C07C211/50

公开(公告)号：EP0499611B1

公开(公告)日：1994-07-27

申请号：EP90915996.4

申请日：1990-11-03

申请人： HOECHST AKTIENGESELLSCHAFT

发明人： HABIG, Kurt ,  BAESSLER, Konrad ,  WARNING, Klaus

IPC分类号： C07C209/54

CPC分类号： C07C209/54

摘要： Process for the continuous production of 3,3'-dichloro-benzidine dihydrochloride from 2-2'-dichloro-hydrazobenzole by treatment with aqueous sulphuric acid by continuously adding to the 2-2'-dichlorohydrazobenzole dissolved in an aromatic solvent which is not miscible with water, at about 20 to 50 °C in the presence of an alkaline metal salt of an alkyl(C8-C23) polyglycol ether sulphate, such a quantity of 50 to 80 % aqueous sulphuric acid that the suspension formed remains transportable and then also continuously diluting the suspension emerging from the reaction region with water and heating it to about 90 to 95 °C until a solution is obtained, separating the aromatic solvent from the hot sulphuric acid aqueous phase, causing the 3-3'-dichloro-benzidine dihydrochloride to precipitate by the addition of hydrochloric acid to the remaining sulphuric acid solution and filtering it.

公开(公告)号：EP1381589B1

公开(公告)日：2006-07-26

申请号：EP02745272.1

申请日：2002-04-29

申请人： DOW GLOBAL TECHNOLOGIES INC.

发明人： DE ANGELIS, Alberto ,  PEREGO, Carlo ,  FARIAS, Otello ,  BOSETTI, Aldo

IPC分类号： C07C209/54 ,  C07C209/78

CPC分类号： C07C209/54 ,  C07C209/78 ,  C07C211/49 ,  C07C211/50

摘要： A process for preparing methane diphenyl diamine (MDA) or a mixture of methane diphenyl diamine (MDA) and its higher homologues with a controlled isomer distribution using a modified zeolite having 'shape selectivity'. The mixture contains compounds having the following general formula (I): where R represents a hydrogen atom or a C1 to C8 (iso)alkyl group, a C4 to C10 cycloalkyl group or a C6 to C12 aromatic group and n is a whole number greater than or equal to one so as to give a functionality of 2 to 6.

公开(公告)号：EP1123917B1

公开(公告)日：2004-05-06

申请号：EP01109422.4

申请日：1998-02-20

申请人： BASF AKTIENGESELLSCHAFT

发明人： Becker, Rainer, Dr. ,  Eller, Karsten, Dr. ,  Langensiepen, Hans-Werner, Dr. ,  Hesse, Michael, Dr.

IPC分类号： C07C209/68 ,  C07C209/78 ,  C07C211/50 ,  C07C209/54

CPC分类号： C07C209/78 ,  C07C209/54 ,  C07C211/50

公开(公告)号：EP1355874A1

公开(公告)日：2003-10-29

申请号：EP01974234.5

申请日：2001-09-07

申请人： Dow Global Technologies Inc.

发明人： DE ANGELIS, Alberto ,  FLEGO, Cristina ,  FARIAS, Otello ,  BOSETTI, Aldo

IPC分类号： C07C209/54 ,  C07C209/78 ,  C07C211/50

CPC分类号： C07C209/78 ,  C07C209/54 ,  C07C211/50

摘要： A process for preparing methane diphenyl diamine (MDA) or a mixture of methane diphenyl diamine (MDA) and its higher homologues with a controlled isomer distribution using a silanised zeolite have 'shape selectivity'. The mixture contains compounds having the following general formula (I): where R represents a hydrogen atom or a C1 to C8 (iso) alkyl group, a C4 to C10 cycloalkyl group or a C6 to C12 aromatic group and n is a whole number greater than or equal to one so as to give a functionality of 2 to 6.

公开(公告)号：EP0245244A4

公开(公告)日：1990-01-08

申请号：EP85905720

申请日：1985-11-12

申请人： DOW CHEMICAL CO

发明人： NAFZIGER JOHN L ,  RADER LAURA A ,  SEWARD IRWIN J JR

IPC分类号： B01J31/10 ,  B01J31/08 ,  C07B61/00 ,  C07C209/54 ,  C07C209/58 ,  C07C209/60 ,  C07C209/78 ,  C07C211/49 ,  C08G73/02

CPC分类号： C07C209/78

摘要： Polyamines are prepared from aromatic amines and aliphatic aldehydes or ketones using cationic or acid ion exchange resins as a catalyst in an essentially oxygen-free atmosphere with the aromatic amines being distilled and protected from the atmosphere.

公开(公告)号：EP3558926B1

公开(公告)日：2021-01-20

申请号：EP17816840.7

申请日：2017-12-18

发明人： KNAUF, Thomas ,  WERSHOFEN, Stefan ,  GRUNER, Klaus-Gerd ,  HARTJES, Volker

IPC分类号： C07C209/78 ,  C07C209/54 ,  C07C209/60 ,  C07C211/48 ,  C07C211/50

公开(公告)号：EP3558927A1

公开(公告)日：2019-10-30

申请号：EP17816842.3

申请日：2017-12-18

申请人： Covestro Deutschland AG

发明人： KNAUF, Thomas ,  WERSHOFEN, Stefan ,  GRUNER, Klaus-Gerd ,  HARTJES, Volker

IPC分类号： C07C209/78 ,  C07C209/54 ,  C07C209/60 ,  C07C211/48 ,  C07C211/50

公开(公告)号：EP3500553A1

公开(公告)日：2019-06-26

申请号：EP17754336.0

申请日：2017-08-15

申请人： Covestro Deutschland AG

发明人： SPRIEWALD, Jürgen ,  ADAMSON, Richard ,  KNAUF, Thomas

IPC分类号： C07C263/10 ,  C07C265/14 ,  C07C209/78 ,  C07C209/54 ,  C07C211/50 ,  B01J19/00