中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

154 records (took 0.024 seconds)

    72.
    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.

    73.
    发明专利
    未知

    公开(公告)号：DE4211140A1

    公开(公告)日：1993-10-07

    申请号：DE4211140

    申请日：1992-04-03

    Applicant: BASF AG

    Inventor： BURKHART BERND DR ,  OFTRING ALFRED DR ,  SCHWENDEMANN VOLKER DR ,  GLASER KLAUS

    IPC: C07F9/54 ,  C25D3/12 ,  C25D3/14

    Abstract: Phosphonium salts of formula (I) in which: R to R are C1 to C18 alkyl which may be substituted by carboxyl groups or C1 to C4 alkoxycarbonyl groups or cyano groups, C2 to C12 alkenyl, C2 to C12 alkinyl, C5 to C8 cycloalkyl, C7 to C12 phenylalkyl, phenyl which may be substitued by one or two C1 to C4 alkyl radicals, C1 to C4 alkoxy radicals, halogen atoms, hydroxyl groups, phenyl radicals or C1 to C4 alkoxy carbonyl groups, or mono or di(C1 to C4 alkyl)amino; R and R are hydrogen or C1 to C4 alkyl; A is hydrogen or a group of the formula -OCO-H, -CO-R , -CO-OH, -CO-OR , -CO-CH2-CO-OR , -O-CO-H, O-CO-R , -OR , -SO2-R , -SO2-OH, -SO2-OR , -PO(OH)2, PO(OH)(OR ), -PO(OR )2, -OPO(OH)2, -OPO(OH)(OR ) or -OPO(OR )2; where R is C1 to C12 alkyl, C2 to C12 alkenyl, C2 to C12 alkinyl, C5 to C8 cycloalkyl, C7 to C12 phenylalkyl or phenyl which may be substituted by one or two C1 to C4 alkyl radicals, C1 to C4 alkoxy radicals, halogen atoms, hydroxyl groups, phenyl radicals or C1 to C4 alkoxy carbonyl groups; Y stands for the group -CH=CH- or -C=C-; m is a number from 0 to 10; n is a number from 1 to 4; p is 0 or 1; and q is a number from 0 to 10; and X- is an n-valent inorganic or organic anion improving water solubility. The phosphonium salts I are suitable as brighteners for aqueous-acid galvanic nickel baths.

    75.
    发明专利
    未知

    公开(公告)号：DE4108626A1

    公开(公告)日：1992-09-17

    申请号：DE4108626

    申请日：1991-03-16

    Applicant: BASF AG

    Inventor： KAPPES ELISABETH DR ,  OFTRING ALFRED DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR

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

    Abstract: Esters are disclosed of citric acid or acetylcitric acid anhydride with compounds containing at least 3 OH groups selected in the group formed by polyglycerine, sucrocarboxylic acids, alkylglucosides, derivates of oligosaccharides, aminosorbit, aminodisorbit, glucosamine, triethanolamine and trishydroxyethyl-melamine, in which each OH group of the ester alcohol components is esterified in average with 0.15 to 1 molecule citric acid or acetylcitric acid anhydride. Also disclosed is the use of these citric acid esters as additives to phosphate-poor or phosphate-free washing and cleaning products.

    79.
    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. …

Patent Agency Ranking