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    41.
    发明专利
    未知

    公开(公告)号：BRPI0415933A

    公开(公告)日：2007-01-23

    申请号：BRPI0415933

    申请日：2004-10-28

    Applicant: BASF AG

    Inventor： SOMOGYI LASZLO ,  ZAMPONI ANDREA ,  STREICHER ROLF ,  KIESOW HARALD ,  ERHARDT RAINER

    IPC: C09B62/44 ,  C09B62/453 ,  C09B62/513 ,  C09B62/515 ,  C14C3/08 ,  C14C9/02 ,  D06P1/38 ,  D06P3/32

    Abstract: The present invention relates to a process for dyeing leather with at least one dye F which has at least one alkaline-activable group of the formula A; where - - - - denotes the bond to the rest of the dye molecule; X is an electron-attracting radical, k is 1, 2 or 3, n is 0 or 1 and B is a CH═CH2 group or a CH2—CH2-Q group, where Q is an alkaline-detachable group, which comprises treating the leather with an aqueous float comprising at least one dye F at a pH of not less than 7.5. The present invention also relates to novel dyes which are particularly useful for reactive dyeing of leather.

    Dyeing leather with dyes containing vinylsulfonyl, or precursor, reactive groups, useful e.g. for making gloves or clothing, by treatment with dye liquor at pH at least 7.5
    42.
    发明专利
    Dyeing leather with dyes containing vinylsulfonyl, or precursor, reactive groups, useful e.g. for making gloves or clothing, by treatment with dye liquor at pH at least 7.5 未知

    公开(公告)号：DE102004041187A1

    公开(公告)日：2006-03-02

    申请号：DE102004041187

    申请日：2004-08-25

    Applicant: BASF AG

    Inventor： SOMOGYI LASZLO ,  ZAMPONI ANDREA ,  STREICHER ROLF ,  KIESOW HARALD ,  ERHARDT RAINER

    IPC: C09B62/012 ,  D06P1/10 ,  D06P1/38

    Abstract: Method for dyeing leather with at least one dye (I) that contains a group (A) activatable under alkaline conditions, comprises treating it with an aqueous liquor containing (I) at pH at least 7.5. Method for dyeing leather with at least one dye (I) that contains a group of formula (A) activatable under alkaline conditions, comprises treating it with an aqueous liquor containing (I) at pH at least 7.5. [Image] X : electron-withdrawing substituent; k : 1-3; n : 0 or 1; B : vinyl or CH 2CH 2Q; Q : group that is cleaved under alkaline conditions; the dotted line indicates the bond to the dye molecule. Independent claims are also included for the following: (1) new dyes of formulae (IIa), (IIIa), (IVa) and (IIb); and (2) leather dyed by the new method. Dk 1>-N=N-Napht 1>-N=N-Tk 1>-[N=N-Kk 1>] k-N=N-Dk 2> (IIa) Dk 1>-N=N-Napht 1>-N=N-Tk 1>-N=N-Kk 1>-N=N-Tk 2>-N=N-Napht 2>-N=N-Dk 2> (IIIa) Dk 1>-N=N-Napht 1>-N=N-Tk 1>-N=N-Napht 2>-N=N-Dk 2> (IVa) A-N=N-Napht 1>-N=N-Tk 1>-N=N-Kk 1>-[N=N-Dk 2>] n (IIb). k and n : 0 or 1; Dk 1> and Dk 2>residue of an aromatic amine or group (A), provided at least one is A; Kk 1>residue of specified couplers; Tk 1> and Tk 2>divalent aromatic residues. The full definitions are given in the DEFINITIONS (Full Definitions) Field.

    Dyeing leather with dyes containing vinylsulfonyl, or precursor, reactive groups, useful e.g. for making gloves or clothing, by treatment with dye liquor at pH at least 7.5
    43.
    发明专利
    Dyeing leather with dyes containing vinylsulfonyl, or precursor, reactive groups, useful e.g. for making gloves or clothing, by treatment with dye liquor at pH at least 7.5 未知

    公开(公告)号：DE10350368A1

    公开(公告)日：2005-06-02

    申请号：DE10350368

    申请日：2003-10-29

    Applicant: BASF AG

    Inventor： SOMOGYI LASZLO ,  ZAMPONI ANDREA ,  STREICHER ROLF ,  KIESOW HARALD ,  ERHARDT RAINER

    IPC: C09B62/44 ,  C09B62/513 ,  C09B62/515 ,  D06P3/32 ,  C09B62/00 ,  D06P3/10

    Abstract: Method for dyeing leather with at least one dye (I) that contains a group (A) activatable under alkaline conditions, comprises treating it with an aqueous liquor containing (I) at pH at least 7.5. Method for dyeing leather with at least one dye (I) that contains a group of formula (A) activatable under alkaline conditions, comprises treating it with an aqueous liquor containing (I) at pH at least 7.5. [Image] X : electron-withdrawing substituent; k : 1-3; n : 0 or 1; B : vinyl or CH 2CH 2Q; Q : group that is cleaved under alkaline conditions; the dotted line indicates the bond to the dye molecule. Independent claims are also included for the following: (1) new dyes of formulae (IIa), (IIIa), (IVa) and (IIb); and (2) leather dyed by the new method. Dk 1>-N=N-Napht 1>-N=N-Tk 1>-[N=N-Kk 1>] k-N=N-Dk 2> (IIa) Dk 1>-N=N-Napht 1>-N=N-Tk 1>-N=N-Kk 1>-N=N-Tk 2>-N=N-Napht 2>-N=N-Dk 2> (IIIa) Dk 1>-N=N-Napht 1>-N=N-Tk 1>-N=N-Napht 2>-N=N-Dk 2> (IVa) A-N=N-Napht 1>-N=N-Tk 1>-N=N-Kk 1>-[N=N-Dk 2>] n (IIb). k and n : 0 or 1; Dk 1> and Dk 2>residue of an aromatic amine or group (A), provided at least one is A; Kk 1>residue of specified couplers; Tk 1> and Tk 2>divalent aromatic residues. The full definitions are given in the DEFINITIONS (Full Definitions) Field.

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