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    3.
    发明专利
    未知

    公开(公告)号：DE59703774D1

    公开(公告)日：2001-07-19

    申请号：DE59703774

    申请日：1997-11-03

    Applicant: BASF AG

    Inventor： SCHOENHERR DR ,  RAULS DR ,  ASCHERL HERMANN ,  LETZELTER THOMAS ,  BAUMANN DIETER ,  POTTHOFF-KARL DR

    IPC: C11D1/04 ,  C07C227/42 ,  C07C229/16 ,  C07C229/24

    Abstract: A method for the preparation of a crystalline solid comprising a glycine-N,N-diacetic acid derivative of formula (I) with a very low hygroscopicity, comprises fixing the water content of the starting material containing (I) at 10-30 wt.% and then carrying out crystallisation: MOOC-CH(R)-N(CH2COOM)2 (I) R = 1-30C alkyl or 2-30C alkenyl (both optionally containing 1-5 OH, formyl, 1-4C alkoxy(carbonyl) or phenoxy groups and/or optionally containing up to 5 non-adjacent O atoms in the chain), alkoxylate groups of formula (II), phenyl-(1-20 C)-alkyl (optionally containing up to 3 1-4C alkyl, OH, carboxyl, sulpho or 1-4C alkoxycarbonyl ring substituents), 5- or 6-membered optionally benzalated heterocyclic ring containing up to 3 N, O or S atoms (optionally containing up to 3 1-4C alkyl, OH, carboxyl, sulpho or 1-4C alkoxycarbonyl substituents) or a group of formula (III): -(CH2)k-O-(A O)m-(A O)n-Y (II) -A-CH(COOM)-N(CH2COOM)2 (III) A , A = 2-4C 1,2-alkylene; Y = H, 1-12C alkyl, phenyl or 1-4C alkoxycarbonyl; k = 1-3; m, n = 0-50; A = 1-12C alkylene or single bond; and M = H, alkali(ne earth) metal or optionally substituted ammonium, with the provision that m+n = at least 4.

    4.
    发明专利
    未知

    公开(公告)号：DE59709000D1

    公开(公告)日：2003-01-30

    申请号：DE59709000

    申请日：1997-10-30

    Applicant: BASF AG

    Inventor： BOECKH DR ,  POTTHOFF-KARL DR ,  BERTLEFF DR ,  NEUMANN DR ,  JAHNS DR ,  BIASTOCH DR ,  WEHLAGE DR

    IPC: B01J13/14 ,  B01J13/18 ,  C11D3/37 ,  C11D3/39 ,  C11D17/00

    Abstract: Microcapsules containing a bleaching assistant obtained by polymerisation of a monomer mixture comprising (total monomer mixture = 100 wt. %) (a) 5-100 wt. % of at least one ethylenically unsaturated carboxylic acid anhydride, (b) 0-95 wt. % of at least one monoethylenically unsaturated monomer different to monomer group (a), (c) 0-80 wt. % crosslinking monomers having at least two non-conjugated monoethylenically unsaturated groups in the molecule and (d) 0-20 wt. % water soluble monoethylenically unsaturated monomers, in the oil phase of a stable oil-in-water emulsion in the presence of radical forming polymerisation initiators, and optionally continuously or periodically increasing the temperature of the polymerisation reaction mixture during the polymerisation are new. The oil phase of the emulsion contains or consists of the bleaching assistant. Also claimed are washing and cleaning agents containing the encapsulated bleaching agent assistants for the cleaning of textile s.

    6.
    发明专利
    未知

    公开(公告)号：DE59604862D1

    公开(公告)日：2000-05-11

    申请号：DE59604862

    申请日：1996-05-21

    Applicant: BASF AG

    Inventor： GREINDL DR ,  OFTRING DR ,  BRAUN DR ,  WILD DR ,  POTTHOFF-KARL DR ,  SCHUH GEORG

    IPC: C07C227/18 ,  C07C227/14 ,  C07C227/16 ,  C07C227/24 ,  C07C227/26 ,  C07C229/16

    Abstract: Prepn. of glycine-N,N-diacetic acid derivs. of formula (I), where R = 1-30C alkyl or 2-30C alkenyl, which can also contain, as substits., up to 5 hydroxyl gps., formyl gps., 1-4C alkoxy gps., phenoxy gps. of 1-4C alkoxycarbonyl gps., and which can be interrupted by up to 5 non-adjacent O atoms, alkoxylate groupings of formula -(CH2)k-O-(A O)m-(A O)n-Y, phenyl alkyl gps. with 1-20C atoms in the alkyl, phenyl, a 5- or 6-membered (un)satd. heterocyclic ring with up to 3 heteroatoms from N, O and S which can also be benzo-condensed, whereby all phenyl cores and heterocyclic rings given for R can also contain as substits. up to 3 1-4C alkyl gps., hydroxyl, gps., carboxyl gps., sulpho gps. or 1-4C alkoxy carbonyl gps., or a gp. of formula (II); A = 1-12C alkylene bridge or a chemical bond; A , A = 2-4C 1,2-alkylene gps.; Y = H, 1-12 C alkyl, phenyl or 1-4 C alkoxycarbonyl; k = 1, 2 or 3; m, n = 0-50; m+n = at least 4; and M = H, alkali metal, alkaline earth metal, ammonium or substd. ammonium in the corresp. stoichiometric quantities, comprises reacting corresp. 2-substd. glycines or 2-substd. glycine nitriles or double glycines of formula (III) or double glycine nitriles of formula (IV) or precursors of the glycine derivs. given as starting materials with formaldehyde and alkali metal cyanide in aq. alkaline medium at a pH of 8-14. The novelty is that 0.5-30 % of the quantity of alkali metal cyanide required for reaction is added to the glycine derivs. or their precursors and then the remaining amt. of alkali metal cyanide and the formaldehyde is added simultaneously over 0.5-12 hrs.

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