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    2.
    发明专利
    未知

    公开(公告)号：DE4404890A1

    公开(公告)日：1995-08-17

    申请号：DE4404890

    申请日：1994-02-16

    Applicant: BASF AG

    Inventor： KNEIP MICHAEL DR ,  DANISCH PETER

    IPC: C08L83/06 ,  C08L83/08 ,  C14C9/00

    Abstract: Leathers and pelts are water-proofed in an aqueous emulsion in the presence of emulsifiers by comb-like carboxylated polysiloxanes in which the carboxyl groups are linked to the main polymer chain by spacer groups in the form of linear or branched C2- to C40-alkylene groups that may be separated by up to 8 non-adjacent oxygen atoms or groups having the formulas -NR -, CO- or -CO-NR and that may additionally bear up to 5 carboxyl groups or carboxylic acid amide groups having the formula -CO-NR R in which the residues R and R stand for hydrogen or C1- to C4-alkyl. The spacer groups are linked to the main polymer chain by a direct bond, an oxygen atom or a group having the formulas -NR -, -CO-, -CO-NR - or -CO-O-.

    Beta-alanine-N,N-di:acetic acid, alkali or ammonium salt complex former in paper mfr. - useful for biodegradable alkaline earth and heavy metal ion complexant in bleaching mechanical wood pulp and printed waste paper de inking
    4.
    发明专利
    Beta-alanine-N,N-di:acetic acid, alkali or ammonium salt complex former in paper mfr. - useful for biodegradable alkaline earth and heavy metal ion complexant in bleaching mechanical wood pulp and printed waste paper de inking 未知

    公开(公告)号：DE4128084A1

    公开(公告)日：1993-02-25

    申请号：DE4128084

    申请日：1991-08-24

    Applicant: BASF AG

    Inventor： KNEIP MICHAEL DR ,  SCHUHMACHER RUDOLF DR

    IPC: D21C5/02 ,  D21C9/10 ,  D21H21/02

    Abstract: Beta-alanine-N,N-diacetic acid (I), alkali metal or ammonium salt, is used as complex former for alkaline earth and heavy metal ions in bleaching wood pulp, mfr. of paper, and deinking of printed waste paper. Prepn. comprises reacting iminodiacetic and acrylic acids in non basic aq. medium (EP 356 972). ADVANTAGE - Improved oxidative or reductive bleaching c.f. nitrilotriacetic acid (I) amt. of waterglass (stabiliser for H2O2) may be reduced, for min. deterioration in dewatering and deposition on paper and felt of paper machine, amt. of H2O2 in deinking may be reduced, and deposition of carbonates, silicates, and phosphates is min.. In an example, 100 g mechanical wood pulp suspension (pulp consistency 20 %, all pts. wt.) was mixed thoroughly with, (on dried wt.) wood pulp, 2 % waterglass, 0.75 % aq. NaOH, 1 % H2O2, and 0.06 % (I) as Na salt and kept at 50 deg. C for 2 hrs.. Paper (surface wt. 400 g/q. m) made from the bleached pulp had whiteness 67.6 % (deg. of remission, Elrepho photometer, wavelength 457 nm( 67.6 %. C.f. process was repeated except that (I) was replaced by (II) as Na salt; whiteness of paper was 66.9%

    5.
    发明专利
    未知

    公开(公告)号：DE19646916C1

    公开(公告)日：1998-04-23

    申请号：DE19646916

    申请日：1996-11-13

    Applicant: BASF AG

    Inventor： FRIEDRICH HOLGER DR ,  KNEIP MICHAEL DR ,  LEUTNER BERND DR

    IPC: C08G77/388 ,  C08L83/08 ,  C09D183/08 ,  C14C9/00 ,  D06M15/643

    Abstract: Certain carboxyamide-polysiloxanes of general formula (IV) or general formula (IVa) having a carboxyl group content from 0.02 to 1.0 meq/g and a mean molar mass (numeric average) [Mn] in a range from 2 x 10 to 60 x 10 g/mol are used for water-proofing materials having a fibrous structure, in particular leather or pelts.

    6.
    发明专利
    未知

    公开(公告)号：DE19629986A1

    公开(公告)日：1998-01-29

    申请号：DE19629986

    申请日：1996-07-25

    Applicant: BASF AG

    Inventor： BRETH MANFRED ,  BIRKHOFER HERMANN DR ,  KNEIP MICHAEL DR ,  DANISCH PETER

    IPC: C14C9/00 ,  C08L83/04 ,  C08L83/08

    Abstract: A process is disclosed for water-proofing leathers and pelts exclusively tanned with tanning polymers and possibly pre-tanned with aldehydes or reactive carbonyl compounds, without vegetable, synthetic and mineral tanning substances. Polysiloxanes are used as water-proofing agents.

    7.
    发明专利
    未知

    公开(公告)号：DE4216560A1

    公开(公告)日：1993-11-25

    申请号：DE4216560

    申请日：1992-05-20

    Applicant: BASF AG

    Inventor： KNEIP MICHAEL DR ,  SCHNEIDER JUERGEN DR ,  OFTRING ALFRED DR

    IPC: C07C227/02 ,  C07C227/00 ,  C07C227/14 ,  C07C227/26 ,  C07C229/16 ,  C11D3/33

    Abstract: The invention relates to a process for producing beta-alanine diacetic acid (Ia) or its alkali metal or ammonium salts (Ib) in which imino diacetic acid is caused to react with acryl nitrile or C1-C4 alkyl acrylic acid esters in a slightly acid to slightly basic aqueous medium and then the nitrile or ester groups are saponified to the acid or a salt. The products made according to the invention are particularly useful as complex formers.

    8.
    发明专利
    未知

    公开(公告)号：DE3925727A1

    公开(公告)日：1991-02-07

    申请号：DE3925727

    申请日：1989-08-03

    Applicant: BASF AG

    Inventor： BAUR RICHARD DR ,  GOUSETIS CHARALAMPOS DR ,  BIRNBACH STEFAN DR ,  KNEIP MICHAEL DR ,  OFTRING ALFRED DR

    IPC: C07H5/04 ,  C07C229/22 ,  C11D3/33 ,  C11D3/37 ,  C11D3/39

    Abstract: The use of 2-hydroxy-3-aminopropionic acid derivatives of the general formula I … … in which X is hydrogen, an alkali metal or ammonium which can be substituted by C1-C4-alkyl groups or C1-C4-hydroxyalkyl groups, and in which the groups Y and Y have the following meanings …… A) omega -substituted alkyl groups of the general formula… -(CH2)m-R … in which R is hydrogen, a hydroxyl group or the groups -COOX, -NH-CH(COOX)-CH2-COOX or -NY Y , and m has values from 1 to 20, with the exception of the value m = 1 in the case where Y and Y are identical and R is the group -COOX, … B) polyether groups of the general formula… -(CH2CH2O)m-R … in which R is hydrogen or a C1-C4-alkyl group, … C) beta -hydroxy-substituted groups of the general formula … … in which R is the groups -COOX, -CH2OH and -CH2-NY Y and n has values from 1 to 5, … D) alpha -carboxy-substituted groups of the general formula … … in which R is hydrogen, a methyl group or a hydroxymethyl group, and R is a hydroxymethyl group or the groups -CH(OH)-COOX or -(CH2)p-COOX where p is 1 or 2, … E) pyranosyl or furanosyl groups of the general formula … … in which q has the value 3 or 2, or … F) polymer residues of polyvinylamine or polyethyleneimine as complexing agents, bleach stabilisers and builders in detergents and cleaners. …

    10.
    发明专利
    未知

    公开(公告)号：DE59010804D1

    公开(公告)日：1998-03-12

    申请号：DE59010804

    申请日：1990-07-24

    Applicant: BASF AG

    Inventor： BAUR RICHARD DR ,  GOUSETIS CHARALAMPOS DR ,  BIRNBACH STEFAN DR ,  KNEIP MICHAEL DR ,  OFTRING ALFRED DR

    IPC: C07H5/04 ,  C07C229/22 ,  C11D3/33 ,  C11D3/37 ,  C11D3/39

    Abstract: The use of 2-hydroxy-3-aminopropionic acid derivatives of the general formula I … … in which X is hydrogen, an alkali metal or ammonium which can be substituted by C1-C4-alkyl groups or C1-C4-hydroxyalkyl groups, and in which the groups Y and Y have the following meanings …… A) omega -substituted alkyl groups of the general formula… -(CH2)m-R … in which R is hydrogen, a hydroxyl group or the groups -COOX, -NH-CH(COOX)-CH2-COOX or -NY Y , and m has values from 1 to 20, with the exception of the value m = 1 in the case where Y and Y are identical and R is the group -COOX, … B) polyether groups of the general formula… -(CH2CH2O)m-R … in which R is hydrogen or a C1-C4-alkyl group, … C) beta -hydroxy-substituted groups of the general formula … … in which R is the groups -COOX, -CH2OH and -CH2-NY Y and n has values from 1 to 5, … D) alpha -carboxy-substituted groups of the general formula … … in which R is hydrogen, a methyl group or a hydroxymethyl group, and R is a hydroxymethyl group or the groups -CH(OH)-COOX or -(CH2)p-COOX where p is 1 or 2, … E) pyranosyl or furanosyl groups of the general formula … … in which q has the value 3 or 2, or … F) polymer residues of polyvinylamine or polyethyleneimine as complexing agents, bleach stabilisers and builders in detergents and cleaners. …

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