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    25.
    发明专利
    未知

    公开(公告)号：DE59700901D1

    公开(公告)日：2000-01-27

    申请号：DE59700901

    申请日：1997-04-23

    Applicant: BASF AG

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

    IPC: B01J20/22 ,  B01J45/00 ,  C02F1/56 ,  C08G73/02 ,  C08G73/04

    Abstract: PCT No. PCT/EP97/02062 Sec. 371 Date Oct. 22, 1998 Sec. 102(e) Date Oct. 22, 1998 PCT Filed Apr. 23, 1997 PCT Pub. No. WO97/40088 PCT Pub. Date Oct. 30, 1997Process for preparing fine-particle, water-insoluble polymers of aziridines by polymerizing aziridines, preferably ethylenimine, in the presence of crosslinkers which contain at least two functional groups, and in at least one ether, and also modified, water-insoluble polymers of aziridines which can be obtained by reacting fine-particle, water-insoluble, crosslinked polymers of aziridines, in aqueous medium, with carbon disulfide or formaldehyde and a nucleophilic agent from the group consisting of alkali metal cyanides, primary amines, secondary amines, alkali metal sulfites and alkali metal phosphites, and use of the modified and non-modified fine-particle, water-insoluble polymers for immobilizing active compounds, as absorbents for aldehydes, ketones and acids, and also for removing heavy metal ions from wastewaters.

    26.
    发明专利
    未知

    公开(公告)号：ES2198748T3

    公开(公告)日：2004-02-01

    申请号：ES98945254

    申请日：1998-08-17

    Applicant: BASF AG

    Inventor： RAHM RAINER ,  GREINDL THOMAS ,  OFTRING ALFRED ,  OETTER GUNTER ,  DETERING JURGEN ,  BRAUN GEROLD

    IPC: C07C229/08 ,  C07C229/16 ,  C07C253/00 ,  C07C255/25 ,  C07D233/72 ,  C07D233/74

    Abstract: A process for preparing compounds of the formula IIb where R is C6-C30-alkyl or C6-C30-alkenyl, which may additionally have upto 5 hydroxyl groups, formyl groups, C1-C4-alkoxy groups, phenoxy groups or C1-C4-alkoxycarbonyl groups as substituents and may be interrupted by upto 5 nonadjacent oxygen atoms, or alkoxylate groups of the formula -(CH2)k-O-(A1O)m-(A2O)n-Y where A1 and A2 are, independently of one another, 1,2-alkylene groups having 2 to 4 carbon atoms, Y is hydrogen, C1-C12-alkyl, phenyl or C1-C4-alkoxycarbonyl, and k is 1, 2 or 3, and m and n are each numbers from 0 to 50, and the total of m+n must be at least 4,by reacting iminodiacetonitrile with aldehydes of the formula R-CHO and HCN or alkali metal cyanides, the process being carried outa) in the absence of an organic solvent and in the presence of a Lewis or Brönsted acid, orb) in the presence or absence of an organic solvent and in the presence of an emulsifier, orc) in the presence or absence of an organic solvent and under a pressure in the range from 1 to 40 bar.

    27.
    发明专利
    未知

    公开(公告)号：DE59906941D1

    公开(公告)日：2003-10-16

    申请号：DE59906941

    申请日：1999-12-22

    Applicant: BASF AG

    Inventor： KESSEL KNUT ,  KLUGE MICHAEL ,  GREINDL THOMAS ,  BOGENSTAETTER THOMAS ,  SCHERR GUENTER ,  RAULS MATTHIAS ,  VAN GELDER RICHARD

    IPC: C07C277/08 ,  C07C279/14 ,  C07C303/22 ,  C07C309/15 ,  C07F9/38

    Abstract: Preparation of guanidine derivatives (I) comprises reacting O-alkylisourea salts (II) with an amine (III) in the presence of seed crystals of (I). Preparation of guanidine derivatives of formula (I) comprises reacting O-alkylisourea salts of formula (II) with an amine of formula (III) in the presence of seed crystals of (I). R1 = 1-8C alkylene or a divalent 5-10C cycloaliphatic group; R2 = H or 1-8C alkyl; or NR1R2 = 5-6 membered ring substituted by Z; Z = COOR3, SO2OR3 or PO(OR3)(OR4); R3 = H, alkalimetal or an equivalent of an alkaline earth metal; and R4 = as for R3 or 1-6C alkyl; R5 = 1-8C alkyl; X = equivalent of an anion.

    30.
    发明专利
    未知

    公开(公告)号：DE59607631D1

    公开(公告)日：2001-10-11

    申请号：DE59607631

    申请日：1996-01-17

    Applicant: BASF AG

    Inventor： GREINDL THOMAS ,  POTTHOFF-KARL BIRGIT ,  OFTRING ALFRED ,  FETZER THOMAS ,  BAUR RICHARD ,  TRIESELT WOLFGANG

    IPC: C07C217/50 ,  C07C227/02 ,  C07C229/16 ,  C07F9/38 ,  C11D3/33 ,  C11D3/34 ,  C11D3/36 ,  D21C9/10

    Abstract: PCT No. PCT/EP96/00169 Sec. 371 Date Jul. 28, 1997 Sec. 102(e) Date Jul. 28, 1997 PCT Filed Jan. 17, 1996 PCT Pub. No. WO96/22964 PCT Pub. Date Aug. 1, 1996The use of triacids of the formula I where X1 to X3 are, independently of one another, carboxylic acid groups of the formula COOM, sulfonic acid groups of the formula SO3M or phosphonic acid groups of the formula PO3M2, where M is hydrogen, alkali metal, ammonium or substituted ammonium, A1 to A3 are, independently of one another, 1,2-alkylene with 2 to 18 carbon atoms, R1 to R3 are, independently of one another, C1-C8-alkylene, and x, y and z are, independently of one another, a number from 0 to 10, where the total of x+y+z must be greater than or equal to 1, as complexing agents for complexing heavy metals or for preparing heavy metal complexes for changing the redox potential, and as builders in detergents and cleaners.

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