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公开(公告)号：AT139994T
公开(公告)日：1996-07-15
申请号：AT93105635
申请日：1993-04-06
Applicant: BASF AG
Inventor： OTTERBACH ANDREAS DR , SCHWARZ HANS VOLKMAR DR , MERGER FRANZ DR , SCHWARZ WOLFGANG DR , BRANDT ECKHARDT DR , MAGNUSSEN PETER DR , MATTNER OTTO
IPC: C08G18/72 , C07C263/00 , C07C263/04 , C07C263/20 , C07C265/00 , C07C265/04 , C07C265/10 , C07C265/14 , C08G71/00 , C08G71/04
Abstract: The invention relates to a multi-step method for the continuous preparation of organic polyisocyanates, preferably aliphatic or cycloaliphatic diisocyanates, by conversion of the corresponding organic polyamines with carbonic acid derivatives and alcohols into monomeric polyurethanes and thermal cleavage thereof, in which the prepared polyiisocyanates and unutilizable residues are separated off in specific reaction steps and the reutilizable by-products are fed back into preliminary steps.
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公开(公告)号：DE3560109D1
公开(公告)日：1987-05-07
申请号：DE3560109
申请日：1985-01-25
Applicant: BASF AG
Inventor： BRUNNER ERWIN DR , GROSSKINSKY OTTO-ALFRED DR , HERRMANN GUENTER DR , KROKOSZINSKI ROLAND DR , MAGNUSSEN PETER DR
IPC: C07C27/12 , C07C27/00 , C07C29/50 , C07C35/08 , C07C45/00 , C07C45/33 , C07C49/403 , C07C67/00 , C07C407/00 , C07C409/06 , C07C409/14 , C07C179/053 , C07C178/00
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公开(公告)号：DE3166154D1
公开(公告)日：1984-10-25
申请号：DE3166154
申请日：1981-06-15
Applicant: BASF AG
Inventor： HAUFFE WERNER DR , MAGNUSSEN PETER DR , DOCKNER TONI DR
IPC: C07D233/92
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公开(公告)号：AT159714T
公开(公告)日：1997-11-15
申请号：AT92112212
申请日：1992-07-17
Applicant: BASF AG
Inventor： SCHWARZ HANS VOLKMAR DR , OTTERBACH ANDREAS DR , MATTNER OTTO , MERGER FRANZ DR , SCHWARZ WOLFGANG DR , BRANDT ECKHARDT DR , MAGNUSSEN PETER DR , MINGES ROLAND DR
IPC: B01J6/00 , C07C263/04 , C07C265/00 , C07C271/06
Abstract: A reactor for thermal cleavage of monofunctional and polyfunctional carbamic acid esters to the corresponding isocyanates and the hydroxyl components in the liquid phase, in which the geometry of the reactor, characterised by the degassing surface in proportion to the volume and the arrangement of the heating surfaces, makes possible the cleavage in a two-phase mixture which contains over 50% volumetric gas content.
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公开(公告)号：DE3403410A1
公开(公告)日：1985-08-01
申请号：DE3403410
申请日：1984-02-01
Applicant: BASF AG
Inventor： BRUNNER ERWIN DR , GROSSKINSKY OTTO-ALFRED DR , HERRMANN GUENTER DR , KROKOSZINSKI ROLAND DR , MAGNUSSEN PETER DR
IPC: C07C27/12 , C07C27/00 , C07C29/50 , C07C35/08 , C07C45/00 , C07C45/33 , C07C49/403 , C07C67/00 , C07C407/00 , C07C409/06 , C07C409/14 , C07C179/053
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Patent Agency Ranking
公开(公告)号：DE3165716D1
公开(公告)日：1984-09-27
申请号：DE3165716
申请日：1981-12-23
Applicant: BASF AG
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公开(公告)号：DE3161207D1
公开(公告)日：1983-11-24
申请号：DE3161207
申请日：1981-03-04
Applicant: BASF AG
Inventor： DOCKNER TONI DR , KEMPE UWE DR , KRUG HERBERT , MAGNUSSEN PETER DR , PRAETORIUS WERNER DR
IPC: B01J23/00 , C07D233/06 , C07D233/08 , C07D233/10
Abstract: 2-Imidazolines are prepared by reacting N,N'-diformyl-1,2-diamines in the gas phase at 200 DEG -350 DEG C., in the presence of certain amounts of an inert gas, over zinc oxide of a particular structure or over a mixture of this zinc oxide and aluminum oxide, as the catalyst. The 2-imidazolines obtainable by the process according to the invention are valuable starting materials for the preparation of dyes, crop protection agents and drugs.
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公开(公告)号：DK0524554T3
公开(公告)日：1997-12-15
申请号：DK92112212
申请日：1992-07-17
Applicant: BASF AG
Inventor： MERGER FRANZ DR , OTTERBACH ANDREAS DR , SCHWARZ WOLFGANG DR , SCHWARZ HANS VOLKMAR DR , MATTNER OTTO , BRANDT ECKHARDT DR , MAGNUSSEN PETER DR , MINGES ROLAND DR
IPC: B01J6/00 , C07C263/04 , C07C265/00 , C07C271/06
Abstract: A reactor for thermal cleavage of monofunctional and polyfunctional carbamic acid esters to the corresponding isocyanates and the hydroxyl components in the liquid phase, in which the geometry of the reactor, characterised by the degassing surface in proportion to the volume and the arrangement of the heating surfaces, makes possible the cleavage in a two-phase mixture which contains over 50% volumetric gas content.
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公开(公告)号：ES2088605T3
公开(公告)日：1996-08-16
申请号：ES93105635
申请日：1993-04-06
Applicant: BASF AG
Inventor： OTTERBACH ANDREAS DR , SCHWARZ HANS VOLKMAR DR , MERGER FRANZ DR , SCHWARZ WOLFGANG DR , BRANDT ECKHARDT DR , MAGNUSSEN PETER DR
IPC: C08G18/72 , C07C263/00 , C07C263/04 , C07C263/20 , C07C265/00 , C07C265/04 , C07C265/10 , C07C265/14 , C08G71/00 , C08G71/04
Abstract: The invention relates to a multi-step method for the continuous preparation of organic polyisocyanates, preferably aliphatic or cycloaliphatic diisocyanates, by conversion of the corresponding organic polyamines with carbonic acid derivatives and alcohols into monomeric polyurethanes and thermal cleavage thereof, in which the prepared polyiisocyanates and unutilizable residues are separated off in specific reaction steps and the reutilizable by-products are fed back into preliminary steps.
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公开(公告)号：DK0566925T3
公开(公告)日：1996-07-29
申请号：DK93105635
申请日：1993-04-06
Applicant: BASF AG
Inventor： MERGER FRANZ DR , OTTERBACH ANDREAS DR , SCHWARZ WOLFGANG DR , MATTNER OTTO , BRANDT ECKHARDT DR , MAGNUSSEN PETER DR , SCHWARZ HANS VOLKMAR DR
IPC: C08G18/72 , C07C263/00 , C07C263/04 , C07C263/20 , C07C265/00 , C07C265/04 , C07C265/10 , C07C265/14 , C08G71/00 , C08G71/04
Abstract: The invention relates to a multi-step method for the continuous preparation of organic polyisocyanates, preferably aliphatic or cycloaliphatic diisocyanates, by conversion of the corresponding organic polyamines with carbonic acid derivatives and alcohols into monomeric polyurethanes and thermal cleavage thereof, in which the prepared polyiisocyanates and unutilizable residues are separated off in specific reaction steps and the reutilizable by-products are fed back into preliminary steps.
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