公开(公告)号：DE4124948A1

公开(公告)日：1993-01-28

申请号：DE4124948

申请日：1991-07-27

Applicant: BASF AG

Inventor： WEBERNDOERFER VOLKMAR DR ,  STUEBINGER ADOLF DR ,  PROLL THEO DR ,  BERNBACH JUERGEN

IPC: C08G69/48 ,  C08G73/02 ,  C08G73/04 ,  D21H17/55 ,  D21H21/10

Abstract: The continuous grafting of NH gp.-contg. cpds. (I) with ethyleneimine (II) in aq. soln. in the presence of catalysts, at temps. of at least 80 deg.C, involves continuously feeding a mixt. of (I), (II) and catalyst at a pressure of at least 0.5 bar into a reaction zone, heating to a temp. at which the grafting reaction will start, passing the exothermic reaction mixt. through a cooled reaction zone in which further reaction occurs at not above 170 deg.C and then releasing the pressure. Pref. (I) are polyamidoamines, polyalkylene-polyamines or polyethyleneimine. Pref. reaction involves heating a mixt. of (I), (II) and catalyst (esp. H2SO4) or p-toluenesulphonic acid) to 90-100 deg.C at 1-20 bar, passing to a second heat exchanger at 100-150 deg.C and then depressurising. USE/ADVANTAGE - Provides a process which is more controllable than prior art processes and gives higher space time yields of prod. The prods. are useful e.g. as dehydrating retention and flocculating agents in paper m

公开(公告)号：DE10002560A1

公开(公告)日：2001-07-26

申请号：DE10002560

申请日：2000-01-21

Applicant: BASF AG

Inventor： WINTER MANFRED ,  BERNBACH JUERGEN ,  GLAS GUENTHER

IPC: C10G73/40 ,  B29B13/00 ,  C07C7/00 ,  C07C45/81 ,  C07C49/88

Abstract: Production of wax pellets comprises passing molten wax through a perforated plate located at the bottom of a coolant-containing column and conveying the pelleted wax through the column.

公开(公告)号：DE19921507A1

公开(公告)日：2000-11-16

申请号：DE19921507

申请日：1999-05-10

Applicant: BASF AG

Inventor： STEUERLE ULRICH ,  VOS HARTWIG ,  BERNBACH JUERGEN ,  DECKER JUERGEN ,  DYLLICK-BRENZINGER RAINER ,  LORENZ KLAUS ,  MEIXNER HUBERT ,  RUEBENACKER MARTIN

IPC: A61K8/72 ,  A61K8/00 ,  A61K8/41 ,  A61K8/42 ,  A61K8/88 ,  A61Q5/00 ,  A61Q19/00 ,  B01D61/14 ,  B01D61/22 ,  B01D61/58 ,  C08G73/00 ,  C08G73/02 ,  C08G73/04 ,  C08G85/00 ,  D21H21/10 ,  D21H21/16 ,  C08J3/00

Abstract: The invention relates to a method for fractionation of water soluble or dispersible synthetic polymers containing amino groups with a broad molar mass distribution by means of ultrafiltration. The polymer solution or dispersion which is to be fractionated is continuously fed into an utltrafiltration circuit comprising at least one ultrafiltration unit and the retentate with a narrower molar mass distribution and the permeate are continuously discharged in such a way that the ultrafiltration circuit is placed in a substantially stationary state. The invention also relates to polymers which can be obtained according to the inventive method and to the use thereof.

公开(公告)号：AT294018T

公开(公告)日：2005-05-15

申请号：AT00927171

申请日：2000-05-09

Applicant: BASF AG

Inventor： STEUERLE ULRICH ,  VOSS HARTWIG ,  BERNBACH JUERGEN ,  DECKER JUERGEN ,  DYLLICK-BRENZINGER RAINER ,  LORENZ KLAUS ,  MEIXNER HUBERT ,  RUEBENACKER MARTIN

IPC: A61K8/72 ,  A61K8/00 ,  A61K8/41 ,  A61K8/42 ,  A61K8/88 ,  A61Q5/00 ,  A61Q19/00 ,  B01D61/14 ,  B01D61/22 ,  B01D61/58 ,  C08G73/00 ,  C08G73/02 ,  C08G73/04 ,  C08G85/00 ,  D21H21/10 ,  D21H21/16

Abstract: A process for fractionating water-soluble or water-dispersible amino-containing synthetic polymers having a broad molar mass distribution by ultrafiltration, wherein the polymer solution or dispersion to be fractionated is fed continuously into an ultrafiltration circulation with at least one ultrafiltration unit, and retentate having a narrower molar mass distribution and permeate are discharged continuously, in such a way that the ultrafiltration circulation is essentially in a steady state, the polymers obtainable by this process and their use.

公开(公告)号：DE4124948C2

公开(公告)日：2002-08-01

申请号：DE4124948

申请日：1991-07-27

Applicant: BASF AG

Inventor： WEBERNDOERFER VOLKMAR ,  STUEBINGER ADOLF ,  PROLL THEO ,  BERNBACH JUERGEN

IPC: C08G69/48 ,  C08G73/02 ,  C08G73/04 ,  D21H17/55 ,  D21H21/10 ,  C08G85/00

公开(公告)号：PT1177035E

公开(公告)日：2005-09-30

申请号：PT00927171

申请日：2000-05-09

Applicant: BASF AG

Inventor： DYLLICK-BRENZINGER RAINER ,  MEIXNER HUBERT ,  VOSS HARTWIG ,  STEUERLE ULRICH ,  RUBENACKER MARTIN ,  LORENZ KLAUS ,  DECKER JURGEN ,  BERNBACH JUERGEN

IPC: A61K8/72 ,  A61K8/00 ,  A61K8/41 ,  A61K8/42 ,  A61K8/88 ,  A61Q5/00 ,  A61Q19/00 ,  B01D61/14 ,  B01D61/22 ,  B01D61/58 ,  C08G73/00 ,  C08G73/02 ,  C08G73/04 ,  C08G85/00 ,  D21H21/10 ,  D21H21/16

公开(公告)号：DE50010170D1

公开(公告)日：2005-06-02

申请号：DE50010170

申请日：2000-05-09

Applicant: BASF AG

Inventor： STEUERLE ULRICH ,  VOSS HARTWIG ,  BERNBACH JUERGEN ,  DECKER JUERGEN ,  DYLLICK-BRENZINGER RAINER ,  LORENZ KLAUS ,  MEIXNER HUBERT ,  RUEBENACKER MARTIN

IPC: A61K8/72 ,  A61K8/00 ,  A61K8/41 ,  A61K8/42 ,  A61K8/88 ,  A61Q5/00 ,  A61Q19/00 ,  B01D61/14 ,  B01D61/22 ,  B01D61/58 ,  C08G73/00 ,  C08G73/02 ,  C08G73/04 ,  C08G85/00 ,  D21H21/10 ,  D21H21/16

Abstract: A process for fractionating water-soluble or water-dispersible amino-containing synthetic polymers having a broad molar mass distribution by ultrafiltration, wherein the polymer solution or dispersion to be fractionated is fed continuously into an ultrafiltration circulation with at least one ultrafiltration unit, and retentate having a narrower molar mass distribution and permeate are discharged continuously, in such a way that the ultrafiltration circulation is essentially in a steady state, the polymers obtainable by this process and their use.