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11.发明专利
公开(公告)号：DE19621300A1
公开(公告)日：1997-12-04
申请号：DE19621300
申请日：1996-05-28
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: A61K8/72 , A61K8/84 , A61K8/91 , A61Q5/12 , A61Q19/00 , C08G73/00 , C08G73/02 , C08G73/04 , D21H17/54 , D21H21/10 , D21H21/16 , A61K7/06 , A61K7/48 , B01D61/14 , B32B7/12 , C08G59/14 , C08G65/32 , C08G69/26 , C08G69/48 , D21H21/18
Abstract: Preparation of water-soluble, amino group-containing condensation or addition product with an increased dewatering and retention effect when used in the production of paper, comprises: (a) subjecting aqueous solutions of the condensation or addition products listed below, to an ultrafiltration step using membranes in order to separate 5 - 95 wt.% of the products as a permeate, and optionally (b) recovering the amino-group containing water-soluble products with enhanced dewatering and retention properties from the retentate. The condensate and addition reaction products are selected from: (a) reaction products of alkylene diamines, polyalkylene polyamines and/or ethylene imine-grafted polyamidoamines with cross-linking agents (CLAs) containing \- 2 functional groups ; (b) Michael reaction addition products of alkylene diamines, polyalkylene polyamines and/or ethylene imine-grafted polyamidoamines, or monoethylenic unsaturated carboxylic acids or their salts, esters, amides or nitriles with at least bifunctional CLAs; (c) amidised polyethylene imines (prepared by reacting polyethylene imines with monobasic carboxylic acids or their esters, anhydrides or amides), optionally reacted with CLAs containing \- 2 functional groups; (d) polyethylene imines, quaternary polyethylene imines, (cross-linked) phosphono-methylated polyethylene imines and/or carboxymethylated (by chain extension reaction) polyethylene imines, or (e) cross-linked alkoxylated polyethylene imines, cross-linked quat. polyethylene imines, cross-linked phosphono-methylated polyethylene imines and/or carboxymethylated (by chain extension reaction) polyethylene imines.
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公开(公告)号：DE19605447A1
公开(公告)日：1997-08-28
申请号：DE19605447
申请日：1996-02-15
Applicant: BASF AG
Inventor： ETTL ROLAND DR , MEIXNER HUBERT DR , HEITZ WALTER PROF DR , NOEDING GUNNAR
Abstract: Stabilisers for aqueous alkyl diketene dispersions comprise amphiphilic alkylated polyethylene imines prepared by partial alkylation of polyethylene imines using alkyl halides containing at least 5C atoms. Also claimed are aqueous alkyl diketene dispersions containing these stabilisers, used as internal sizing agents for paper pulp. Preferably the polyethylene imines have a weight average molecular weight of 500-50000 (700-30000). The alkyl halides contain 5-30C atoms and are preferably 1-22C alkyl bromides. The degree of alkylation is 1-35 (3-33)%.
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公开(公告)号：DE4427512A1
公开(公告)日：1996-02-08
申请号：DE4427512
申请日：1994-08-03
Applicant: BASF AG
Inventor： MEIXNER HUBERT DR , REUTHER WOLFGANG DR , HAHN ERWIN DR , KOENIGSTEIN VOLKER DR
IPC: B01J31/02 , C07B61/00 , C07C45/45 , C07C45/57 , C07C45/59 , C07C45/60 , C07C45/72 , C07C49/12 , C07C49/16 , C07C49/175 , C07C49/213 , C07C49/227 , C07C49/255 , C07C205/45 , C08K5/07 , C08L101/00 , C07C49/92 , C07C49/215 , C09K15/06
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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.
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Patent Agency Ranking
公开(公告)号：DE19654390A1
公开(公告)日：1998-07-02
申请号：DE19654390
申请日：1996-12-27
Applicant: BASF AG
Inventor： AUHORN WERNER , MOENCH DIETMAR DR , SCHOLZ RAINER , BLUM RAINER , MEIXNER HUBERT DR , DYLLICK-BRENZINGER RAINER DR
Abstract: The invention relates to a method for producing paper by dehydrating, on a paper machine, paper pulp containing processing chemicals. According to said method, the paper machine wire is supplied, via a headbox, with a principal stream of paper pulp and a diluting stream consisting of returned water, containing at least 5 weight percent of the processing chemicals and accounting for between 5 and 35 % of the total headbox supply. The papers produced in this way have an excellent formation cross section and outstanding ash distribution.
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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
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).
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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.
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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
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.
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公开(公告)号：DE4438708A1
公开(公告)日：1996-05-02
申请号：DE4438708
申请日：1994-10-29
Applicant: BASF AG
Inventor： LINHART FRIEDRICH DR , STANGE ANDREAS DR , SCHUHMACHER RUDOLF DR , HARTMANN HEINRICH DR , DENZINGER WALTER , NIESSNER MANFRED DR , NILZ CLAUDIA DR , REUTHER WOLFGANG DR , MEIXNER HUBERT DR
IPC: C08B31/12 , C08B31/00 , C08B35/00 , C08G73/02 , C08G81/00 , D21H17/29 , D21H21/18 , D21H21/20 , C08F26/00
Abstract: In a cationic modification process for starch, starch is reacted with polymers that contain amino and/or ammonium groups in an aqueous medium at temperatures from 115 to 180 DEG C under an increased pressure and in the absence of oxidisers, polymerisation initiators and alkali. The reaction is conducted so that maximum 10% by weight starch has its molar weight reduced. Also disclosed is the use of the thus obtained reaction products as dry strength agents for paper.
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