公开(公告)号：DE19719059A1

公开(公告)日：1998-11-12

申请号：DE19719059

申请日：1997-05-06

Applicant: BASF AG

Inventor： ETTL ROLAND DR ,  MEIXNER HUBERT DR ,  ESSER ANTON DR ,  SCHOLZ RAINER ,  MAHR NORBERT DR ,  STEUERLE ULRICH DR ,  HOENE MATTHIAS DR ,  LORENZ KLAUS DR

IPC: D21H21/06 ,  C08F8/32 ,  C08F8/44 ,  C08G73/02 ,  D21H17/08 ,  D21H17/14 ,  D21H17/17 ,  D21H17/37 ,  D21H17/38 ,  D21H17/45 ,  D21H17/49 ,  D21H17/54 ,  D21H17/55 ,  D21H17/56 ,  D21H21/02 ,  D21H21/10 ,  D21H21/16

Abstract: The invention relates to a method for producing paper, paperboard and cardboard by dehydrating paper material containing interfering substances in the presence of fixing agents. Reaction products are used as fixing agents. Said products are obtained by reacting polymers, containing amino and/or ammonium groups, from the group of: polymers containing vinyl amino units, polyalkylene polyamines, polyamidoamines, polyamidoamines grafted with ethylene imine and optionally cross-linked, polydiallydldimethylammoniumchlorides; polymers containing dialkylaminoalkylacrylamide-units or dialkylaminoalkylmethacrylamide units and polyallylamines and dicyandiamide-formaldehyde-condensates, with reactive sizing agents for paper with a polymer/reactive sizing agent weight ratio of 15,000 : 1 to 1 : 1. The invention also relates to reaction products thus obtained and to their use as fixing agents for water soluble and water insoluble interfering substances in the production of paper, paperboard and cardboard from paper materials containing interfering substances.

公开(公告)号：DE19631350A1

公开(公告)日：1998-02-05

申请号：DE19631350

申请日：1996-08-02

Applicant: BASF AG

Inventor： STEUERLE ULRICH DR ,  REUTHER WOLFGANG DR ,  MEIXNER HUBERT DR

IPC: C08G73/02 ,  C08G73/04 ,  D21H17/56 ,  D21H21/10 ,  D21H21/20 ,  D21H17/55

Abstract: Crosslinked, hydrolysed, linear polymers (I) of N-(2-(1'-aziridino)ethyl-formamide (AEF), obtained by reaction of (a) linear polymers of AEF from which at least 5 mol% of the formyl groups have been removed leaving free amino groups, with (b) at least bifunctional crosslinkers. Also claimed is a process for the production of (I) by reacting components (a) and (b) in aqueous medium to give water-soluble crosslinked polymers (I) with a viscosity of at least 100 mPa.s (in 25 wt% aqueous solution at 20 deg C and pH 7).

公开(公告)号：DE19627909A1

公开(公告)日：1998-01-15

申请号：DE19627909

申请日：1996-07-11

Applicant: BASF AG

Inventor： STEUERLE ULRICH DR ,  REUTHER WOLFGANG DR ,  MEIXNER HUBERT DR ,  EHLE MICHAEL DR ,  GREINDL THOMAS DR ,  BETZ RAINER DR

IPC: B01D53/02 ,  B01J20/26 ,  C02F1/56 ,  C08G73/02 ,  C08G73/04 ,  C08L71/02 ,  B01D53/34 ,  C02F1/62 ,  C07B63/00

Abstract: Method of manufacturing finely divided, water-insoluble polymers of aziridines by polymerization of aziridines, preferably ethylene-imine, in the presence of two or more functional groups containing cross-linking agents in one or more ethers, as well as modified, water-insoluble polymers of aziridines that can be obtained by reacting finely divided, water-insoluble cross-linked polymers of aziridines in an aqueous medium with carbon disulphide or with formaldehyde and a nucleophilic agent from the group comprising alkali-metal cyanides, primary amines, secondary amines, alkali-metal sulphites, and alkali-metal phosphites, and the use of the modified and unmodified finely divided, water-insoluble polymers for immobilizing active ingredients, as absorbents for aldehydes, ketones and acids, for removing heavy-metal ions from liquid effluents, and for removing ozone and/or sour gases from air or inert gases.

公开(公告)号：DE19611977A1

公开(公告)日：1997-10-02

申请号：DE19611977

申请日：1996-03-26

Applicant: BASF AG

Inventor： HUFF JUERGEN DR ,  STEUERLE ULRICH DR ,  MEIXNER HUBERT DR ,  EHLE BEATE DR ,  PAULUS WOLFGANG DR ,  LUX JUERGEN ALFRED DR ,  HAEUSLING LUKAS DR

IPC: C07C233/36 ,  C08G69/04 ,  C08G69/26 ,  C11D3/00 ,  C11D3/30 ,  C11D3/32 ,  C11D3/37 ,  C11D7/32

Abstract: The use of an amine with an average pKs of 1 to 14 as a washing power enhancer, preferably in textile detergents, especially for washing coloureds, and detergent formulations containing said amines.

公开(公告)号：DE19548782A1

公开(公告)日：1997-07-03

申请号：DE19548782

申请日：1995-12-27

Applicant: BASF AG

Inventor： STEUERLE ULRICH DR ,  REUTHER WOLFGANG DR

IPC: C07D203/12 ,  C08G73/02 ,  C08G73/04 ,  D21H17/55

Abstract: Linear polymers of N-(2-(1'-aziridino)ethyl)formamide obtainable by the polymerisation of N-(2-(1'-ariridino)ethyl)formamide in aqueous or alcoholic solution or in mixtures of water and alcohols at temperatures of up to a maximum of 75 DEG C in the presence of acid catalysts, alkylising agents or Lewis acids, process for the production of the polymers, hydrolysed N-2-(1'-aziridino)ethyl)formamide, from which at least 5 mol % of the formyl groups are separated with formation of amino groups, and the use of the non-hydrolysed and hydrolysed polymers as dewatering agents, retention and flocculants, fixers and wet-strength agents in paper production.

公开(公告)号：DE19732865A1

公开(公告)日：1999-02-04

申请号：DE19732865

申请日：1997-07-30

Applicant: BASF AG

Inventor： MUELLER ULRICH DR ,  STEUERLE ULRICH DR

IPC: A61K47/04 ,  B01J21/04 ,  C01B37/00 ,  C01B37/02 ,  C09C1/40 ,  C01B33/12 ,  B01J20/10 ,  C12N11/14 ,  B01J21/08 ,  C09G1/02 ,  C07C7/12 ,  C07C9/04 ,  C07B63/00 ,  C08J5/14 ,  C08K9/04 ,  C08L79/02

Abstract: Preparation of a solid (I) containing silicon dioxide includes the stage of contacting at least one precursor (II) for SiO2 with at least one structure former in a liquid medium. The novelty is that the structure former comprises a polyethyleneimine (PEI) or a mixture of two or more PEI's. Also claimed are (I) obtained by the process; and the use of PEI (or a mixture of PEI's) as structure former in the preparation of solids containing SiO2.

公开(公告)号：DE19643133A1

公开(公告)日：1998-04-23

申请号：DE19643133

申请日：1996-10-18

Applicant: BASF AG

Inventor： MEIXNER HUBERT DR ,  STEUERLE ULRICH DR ,  DECKER JUERGEN DR ,  PAULUS WOLFGANG DR ,  BOECKH DIETER DR ,  LUX JUERGEN ALFRED DR ,  EHLE BEATE DR

IPC: C08G73/02 ,  C11D3/00 ,  C11D3/37 ,  C11D3/386

Abstract: The invention concerns the use of water-soluble or water-dispersible cross-linked nitrogenated compounds obtained by crosslinking (a) compounds containing at least three NH groups with (b) at least bifunctional crosslinking agents which react with NH groups, in washing and cleaning agents, in particular as soil-release agents. Preferably, the compounds (a) are selected from the group comprising oligo- and polyamines, polyalkylene polyamines, polyamidoamines, polyamidoamines grafted with (poly)ethyleneimine and mixtures thereof.

公开(公告)号：DE19607641A1

公开(公告)日：1997-09-04

申请号：DE19607641

申请日：1996-02-29

Applicant: BASF AG

Inventor： DYLLICK-BRENZINGER RAINER DR ,  STEUERLE ULRICH DR ,  REUTHER WOLFGANG DR ,  SCHERR GUENTER DR ,  MEIXNER HUBERT DR

IPC: C08G71/00 ,  C08G73/02 ,  D21H17/54 ,  D21H21/10 ,  C08G85/00 ,  C08G69/26 ,  C08G69/48 ,  C08G81/00

Abstract: Water-soluble condensation products (I) with a viscosity of at least 100 mPa.s in 20 wt% aqueous solution at 20 deg C, obtained by reacting (a) polyalkylene-polyamines, polyamido- amines and/or ethyleneimine-grafted polyamido-amines with (b) at least bifunctional halogen-free crosslinkers selected from (b1) ethylene carbonate, propylene carbonate and/or urea, (b2) mono- unsaturated carboxylic acids and their esters, amides and anhydrides, or at least dibasic saturated mono- or poly- carboxylic acids and derivatives as above, (b3) reaction products of polyether-diamines, alkylenediamines, polyalkylene-polyamines, alkylene glycols and/or polyalkylene glycols with mono- unsaturated carboxylic acids or derivatives thereof as above, in which the product contains at least two ethylenic double bonds or carboxylic acid, amide or ester functional groups and/or (b4) reaction products of dicarboxylic acid esters with ethyleneimine containing at least two aziridino groups. Also claimed is t he above process for the production of (I).

公开(公告)号：DE19600366A1

公开(公告)日：1997-07-10

申请号：DE19600366

申请日：1996-01-08

Applicant: BASF AG

Inventor： STEUERLE ULRICH DR ,  MEIXNER HUBERT DR ,  DYLLICK-BRENZINGER RAINER DR ,  REUTHER WOLFGANG DR ,  KANTER HARTMUT DR ,  HETTCHE ALBERT DR ,  WEISER JUERGEN DR ,  SCHERR GUENTER DR

IPC: B01D21/01 ,  B01D61/14 ,  C08G73/00 ,  C08G73/02 ,  C08G73/04 ,  D21H17/54 ,  D21H17/56 ,  D21H21/10 ,  D21H21/16 ,  A61K7/075 ,  A61K7/48 ,  C08G69/48

Abstract: Molecular weight distribution of an ethyleneimine polymer is narrowed by subjecting a solution of the polymer to ultrafiltration, removing 5-95 wt.% of the polymer as permeate, and optionally isolating the remaining polymer from the retentate.

公开(公告)号：DE19545874A1

公开(公告)日：1997-06-12

申请号：DE19545874

申请日：1995-12-08

Applicant: BASF AG

Inventor： STEUERLE ULRICH DR ,  REUTHER WOLFGANG DR ,  HARDER WOLFGANG DR

IPC: C08G73/02 ,  C08G73/04

Abstract: The invention relates to a process for continuous production of homopolymers of ethylene imine by polymerisation of ethylene imine in a solvent in the presence of catalysts at temperatures of at least 80 DEG C in a homogenous fluid phase in a tubular reactor in which the ratio of the length to the internal diameter is at least 5. Polyethylene imines with a secondary nitrogen atom content of greater than 40 to 60 % and a molecular weight distribution Mw/Mn of 1.5 to 3 are obtained.