公开(公告)号：DE19544739A1

公开(公告)日：1997-06-05

申请号：DE19544739

申请日：1995-12-01

Applicant: BASF AG

Inventor： MOHR JUERGEN DR ,  MAHR NORBERT DR ,  FUNHOFF ANGELIKA DR ,  LEININGER HARTMUT DR ,  MALLM HEIKE ,  MEIXNER HUBERT DR ,  OPPENLAENDER KNUT DR ,  SCHERR GUENTER DR ,  WEISER JUERGEN DR

IPC: C08G73/02 ,  C08G73/04 ,  C08G65/26

Abstract: The invention relates to a process for the preparation of hydroxyalkylated polyethyleneimines by hydroxyalkylation of polyethyleneimines in one or two procedural stages to form reaction products which contain 1 to 200 mol alkylene oxide groups per NH group in the polyethyleneimine. In the one-stage process, there are anhydrous polyethyleneimines and 1 to 20 mol %, in relation to the polyethyleneimines, of at least one anhydrous base, or aqueous solutions of said substances are dehydrated and after removing all the water are reacted at temperatures above 135-150 DEG C with at least one alkylene oxide. Alternatively, in the two-stage process, in the first stage polyethyleneimine is reacted at temperatures of from 80 to 100 DEG C with 0.7 to 0.9 mol, in relation to a mol NH group in the polymerisate, of at least one alkylene oxide in an aqueous solution, and in the second stage the reaction product obtained in the first step is reacted in the presence of 1 to 20 mol %, in relation to polyethyleneimine, of an alkaline catalyst in the absence of water at temperatures of from 120 to 150 DEG C with at least one alkylene oxide to form hydroxyalkylated polyethyleneimines which contain 1 to 200 mol of alkylene oxide groups per NH group in the polyethyleneimine. The consequent alkoxylated products are only slightly coloured.

公开(公告)号：DE19716821A1

公开(公告)日：1998-10-29

申请号：DE19716821

申请日：1997-04-22

Applicant: BASF AG

Inventor： RUEBENACKER MARTIN DR ,  NEGELE ANTON DR ,  MAHR NORBERT DR ,  ESSER ANTON DR ,  DYLLICK-BRENZINGER RAINER DR ,  MEIXNER HUBERT DR ,  BAUMANN PETER

IPC: D21H21/02 ,  C08F26/02 ,  D21H17/34

Abstract: In a process for producing paper, paperboard and cardboard, an impurity-containing paper pulp is dewatered in the presence of fixing agents made of homopolymers and/or copolymers of N-vinylformamide with a degree of hydrolysis of the polymerised N-vinylformamide units from 25 to 55 %, and retention agents.

公开(公告)号：DE19520269A1

公开(公告)日：1996-12-05

申请号：DE19520269

申请日：1995-06-02

Applicant: BASF AG

Inventor： KROENER RUDI DR ,  MARTISCHIUS FRANZ-DIETER DR ,  BRATSCHKOW STEFAN ,  OPPENLAENDER KNUT DR ,  KNAUF WOLFGANG DR ,  MAHR NORBERT DR ,  KALIMULIN A A ,  RIGALOV N A ,  UMUTBAEV N A ,  HVALEVA D A

IPC: C09K8/035 ,  C09K8/54 ,  C09K15/30 ,  C23F11/14 ,  C07C231/02 ,  C07C233/36 ,  C07D233/16 ,  C07D239/06 ,  C09K7/02 ,  C09K15/22

Abstract: Corrosion inhibitor contains: (A) 2-98 wt.% of a condensation product of diethylenetriamine or dipropylene triamine with (un)satd. 6-22C fatty acids in mol. ratio of 2-1:1-2.5, which has been partially converted into corresponding ammonium salts; and (B) 0-70 wt.% organic solvent. The novelty is that the inhibitor further contains (C) 2-98 wt.% of a condensation product, as corrosion inhibitor, of an amine mixt. of: (a) 20-70 wt.pts. N-(2-aminoethyl)ethanolamine; (b) 30-80 wt.pts. polyamines of formula: H2N-(CH2)m-NHn-H (where m = 2 or 3; and n = 3-8); and (c) 0-20 wt.pts. further aliphatic amines, with (un)satd. 6-22C fatty acids in mol. ratio of 2-1:1-2. An alternative corrosion inhibitor is also claimed.

公开(公告)号：DE19628893A1

公开(公告)日：1998-01-22

申请号：DE19628893

申请日：1996-07-17

Applicant: BASF AG

Inventor： OPPENLAENDER KNUT DR ,  OETTER GUENTER DR ,  KROENER RUDI DR ,  MAHR NORBERT DR ,  JATZEK HANS-JUERGEN DR ,  TAEGER KLAUS DR

IPC: C07D233/61 ,  C07D521/00 ,  C09K8/54 ,  C23F11/14 ,  C09K7/02 ,  C09K15/30

Abstract: The invention relates to the use of at least one compound of general formula (I), in which R1, R2 and R3 independently of one another represent a hydrogen atom or an alkyl or alkenyl radical; R4 represents an alkyl or alkenyl radical and n represents 1 to 5; or of an acid addition salt thereof, as an inhibitor of corrosion in the extraction, processing, storage and transportation of crude oil and natural gas, and to a process for the preparation of this compound.

公开(公告)号：DE19610745A1

公开(公告)日：1997-09-25

申请号：DE19610745

申请日：1996-03-20

Applicant: BASF AG

Inventor： BECKMANN EBERHARD DR ,  LUKAS SIEGMAR DR ,  OETTER GUENTER DR ,  MAHR NORBERT DR

IPC: C11D3/00 ,  C11D7/34 ,  C23F11/08 ,  C23F11/10 ,  D06L4/30 ,  D06P1/22 ,  D06P1/52 ,  D06P1/62 ,  D06P1/642 ,  D06P1/649 ,  D06P1/651 ,  D06P1/653 ,  D06P1/673 ,  D21C9/00 ,  C09K15/04 ,  C23F11/18 ,  D06L3/10

Abstract: The invention concerns mixtures of (A) inorganic or organic reducing-action sulphur compounds and (B) organic corrosion inhibitors, the amount of component B in the mixture being 1 ppm to 1 % by wt. expressed in terms of the amount of component A. Such mixtures are suitable for use as corrosion-inhibiting reducing agents or as corrosion-inhibiting reductive bleaching agents, in particular in textile-decolourizer or stain-removal formulations, in the vat-dyeing of textiles, in the bleaching of fibrous materials for paper manufacture and in bleaching wool.

公开(公告)号：DE19801437A1

公开(公告)日：1999-07-22

申请号：DE19801437

申请日：1998-01-16

Applicant: BASF AG

Inventor： GEISLER BERNHARD DR ,  ROEPER MICHAEL PROF DR ,  ZELLER EDGAR DR ,  PACIELLO ROCCO DR ,  DECKER JUERGEN DR ,  MAHR NORBERT DR ,  VOS HARTWIG DR

IPC: B01J31/22 ,  B01J31/16 ,  B01J31/18 ,  B01J31/20 ,  C07B61/00 ,  C07C27/20 ,  C07C29/16 ,  C07C31/125 ,  C07C45/50 ,  C07C47/02 ,  C08G73/02 ,  C07B41/06 ,  B01J31/06

Abstract: Aldehydes are produced by hydroformylation of olefins using a dissolved homogeneous catalyst comprising a special Group VIII metal-polyamine complex, followed by distillation of products with removal of high-boiling components from the sump and recycling of catalyst and excess ligand. A process for the production of aldehydes or aldehydes and alcohols comprises the hydroformylation of olefins at 50-100 deg C and 20-1000 bar in presence of a homogeneous (dissolved) complex catalyst. This catalyst contains a Group VIII metal and a phosphorus-free, multi dentate ligand consisting of a derivatized, essentially water-insoluble polyamine with an average mol.wt of more than 1000 and at least 10 nitrogen atoms. After the reaction, the catalyst complex and excess ligand are returned to the hydroformylation reaction after complete or partial removal of aldehydes and alcohols by distillation, and at least part of the high-boiling component is continuously or at least intermittently removed from the distillation sump. An Independent claim is also included for a hydroformylation catalyst complex with a Group VIII metal as central atom and, as ligands, at least one carbonyl group and at least one polyamine as above.

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：DE19624861A1

公开(公告)日：1998-01-02

申请号：DE19624861

申请日：1996-06-21

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  KLIMESCH ROGER DR ,  OPPENLAENDER KNUT DR ,  MAHR NORBERT DR ,  WENDEROTH BERND DR ,  KNAUF WOLFGANG DR

IPC: C07C219/08 ,  C08F210/02 ,  C10L1/22 ,  C10L1/236 ,  C10L1/24 ,  C07C217/08 ,  C08F218/04

Abstract: The invention relates to a copolymer comprising (a) 30 to 95.5 wt.% of ethylene; (b) 4 to 40 wt.% of at least one vinyl ester of C2-6 monocarboxylic acids; (c) 0.5 to 30 wt.% of at least one (meth)acrylate of the general formula (I), the radicals having the meaning given in the description; (d) 0 to 10 wt.% of at least one monomer which can be polymerised with the monomers (a) to (c). The invention also relates to the use of said copolymer as a flow improver.