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    13.
    发明专利
    未知

    公开(公告)号：ES2124519T3

    公开(公告)日：1999-02-01

    申请号：ES95902787

    申请日：1994-12-06

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS ,  SCHORNICK GUNNAR ,  BAUR RICHARD ,  KUD ALEXANDER ,  SCHWENDEMANN VOLKER

    IPC: C11D3/33 ,  C08G69/10 ,  C08G73/10 ,  C11D3/37

    Abstract: PCT No. PCT/EP94/04057 Sec. 371 Date May 20, 1996 Sec. 102(e) Date May 20, 1996 PCT Filed Dec. 6, 1994 PCT Pub. No. WO95/16020 PCT Pub. Date Jun. 15, 1995The use of polyaspartic acid prepared by polycondensation of aspartic acid in the presence of phosphoric acid in a molar ratio of from 1:0.05 to 1:10 at temperatures of at least 120 DEG C. to give polysuccinimide, and subsequent hydrolysis of the polysuccinimide with bases to give at least partially neutralized polyaspartic acid, as additive to detergents and cleaners in amounts of from 0.1 to 10% by weight, and detergents and cleaners which contain polyaspartic acids prepared in the presence of phosphoric acid.

    15.
    发明专利
    未知

    公开(公告)号：DE59402833D1

    公开(公告)日：1997-06-26

    申请号：DE59402833

    申请日：1994-03-05

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS ,  SCHORNICK GUNNAR ,  DENZINGER WALTER ,  BAUR RICHARD ,  KUD ALEXANDER ,  POTTHOFF-KARL BIRGIT ,  SCHWENDEMANN VOLKER

    IPC: C08F8/14 ,  C08F8/30 ,  C08F8/44 ,  C08F8/48 ,  C08G69/10 ,  C08G73/06 ,  C08G73/10 ,  C09K23/00 ,  C09K23/52 ,  C11D3/37

    Abstract: PCT No. PCT/EP94/00660 Sec. 371 Date Sep. 13, 1995 Sec. 102(e) Date Sep. 13, 1995 PCT Filed Mar. 5, 1994 PCT Pub. No. WO94/21695 PCT Pub. Date Sep. 29, 1994Polycocondensates based on aspartic acid which are obtainable by condensing aspartic acid in the presence of polymers containing carboxyl groups, which contain at least 10 mol % of a monoethylenically unsaturated carboxylic acid in copolymerized form and have a molecular weight of at least 300, in the weight ratio from 1,000:1 to 2:1, processes for preparing the polycocondensates and use of the polycocondensates in the form of the free acid groups or in a form neutralized with ammonia, amines, alkali metal or alkaline earth metal bases as an additive to detergents and cleaners, as scale inhibitors or as dispersants for finely divided solids are described.

    16.
    发明专利
    未知

    公开(公告)号：DE59208500D1

    公开(公告)日：1997-06-19

    申请号：DE59208500

    申请日：1992-02-18

    Applicant: BASF AG

    Inventor： FUNHOFF ANGELIKA ,  SEELMANN-EGGEBERT HANS-PETER ,  HARTMANN HEINRICH ,  BAUR RICHARD ,  SCHWENDEMANN VOLKER ,  KUD ALEXANDER ,  BERTLEFF WERNER

    IPC: C08G2/10 ,  C08G2/14 ,  C08G2/18 ,  C11D3/37

    Abstract: PCT No. PCT/EP92/00332 Sec. 371 Date Aug. 20, 1993 Sec. 102(e) Date Aug. 20, 1993 PCT Filed Feb. 18, 1992 PCT Pub. No. WO92/15629 PCT Pub. Date Sep. 17, 1992.Polyacetals useful as detergent additives contain units of the formula where R is hydrogen, C1-C4-alkyl or COOM, M is C1-C4-alkyl or an alkali metal, ammonium or alkanolamine group, and m is from 0 to 9, have K values (determined by the method of H. Fikentscher on the sodium salt in 1% strength by weight aqueous solution at 25 DEG C. and pH 7) of at least 8.5, and are prepared by polymerizing compounds of the formula where R is hydrogen, C1-C4-alkyl or COOM, M is C1-C4-alkyl or an alkali metal, ammonium or alkanolamine group, R2 is C1-C4-alkyl, and m is from 0 to 9, in the presence of initiators and optionally comonomers with or without hydrolysis of the ester groups.

    17.
    发明专利
    未知

    公开(公告)号：ES2088132T3

    公开(公告)日：1996-08-01

    申请号：ES92905644

    申请日：1992-03-07

    Applicant: BASF AG

    Inventor： KAPPES ELISABETH ,  OFTRING ALFRED ,  BAUR RICHARD ,  KUD ALEXANDER ,  BOECKH DIETER ,  HARTMANN HEINRICH

    IPC: C07C67/08 ,  C07C69/704 ,  C07C219/06 ,  C07H13/04 ,  C07H15/04 ,  C11D3/20 ,  C11D3/22 ,  C11D3/30

    Abstract: PCT No. PCT/EP92/00512 Sec. 371 Date Sep. 16, 1993 Sec. 102(e) Date Sep. 16, 1993 PCT Filed Mar. 7, 1992 PCT Pub. No. WO92/16493 PCT Pub. Date Oct. 1, 1992.Esters of citric acid or acetylcitric anhydride with compounds of at least 3 OH groups selected from the group consisting of polyglycerol, sugarcarboxylic acids, alkyl glucosides, derivatives of oligosaccharides, aminosorbitol, aminodisorbitol, glucosamine, triethanolamine and trishydroxyethylmelamine, each OH group of the alcohol component of the esters being esterified on average with from 0.15 to 1 molecule of citric acid or acetylcitric anhydride, are useful as additives in low-phosphate or phosphate-free detergents.

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