中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

114 records (took 0.024 seconds)

    5.
    发明专利
    未知

    公开(公告)号：ES2079735T3

    公开(公告)日：1996-01-16

    申请号：ES92109350

    申请日：1992-06-03

    Applicant: BASF AG

    Inventor： HANSEN GUENTER DR ,  ZEIDLER GEORG

    IPC: C09B29/08 ,  C09B29/085 ,  C09B31/043 ,  C09B41/00 ,  C09B43/00 ,  C09B43/28 ,  C10L1/00

    Abstract: Acetalized azo dyes are prepared by diazotizing an amine, coupling with a hydroxyalkyl-containing coupling component and subsequently reacting with a vinyl ether in a process which comprises carrying out the coupling reaction in a two-phase reaction mixture comprising water and an aromatic hydrocarbon, subsequently separating off the aqueous phase and reacting the azo dye, which is present in the organic phase, without intermediate isolation, with a vinyl ether in the presence of a polybasic carboxylic acid as catalyst.

    Metal complex dyes
    8.
    发明专利
    Metal complex dyes 未知

    公开(公告)号：DE3503588A1

    公开(公告)日：1986-08-07

    申请号：DE3503588

    申请日：1985-02-02

    Applicant: BASF AG

    Inventor： HANSEN GUENTER DR ,  BERGMANN UDO DR ,  ZEIDLER GEORG

    IPC: C09B45/24 ,  D06P3/32 ,  C09B35/037 ,  D06P1/10

    Abstract: The invention relates to Fe, Ni, Co, Cr or Cu complexes of compounds which in the form of the free acids correspond to the general formula I in which X is hydrogen, chlorine, bromine or hydroxysulphonyl, Y is chlorine, bromine, nitro, sulphamoyl or hydroxysulphonyl, Z is hydrogen, methyl, methoxy, ethoxy, chlorine or bromine, Z is hydrogen, chlorine or hydroxysulphonyl and n is 1 or 2. The compounds according to the invention are particularly suitable for the dyeing of leather.

    9.
    发明专利
    未知

    公开(公告)号：DE3362374D1

    公开(公告)日：1986-04-10

    申请号：DE3362374

    申请日：1983-03-24

    Applicant: BASF AG

    Inventor： BERGMANN UDO DR ,  HANSEN GUENTER DR ,  ZEIDLER GEORG

    IPC: C09B31/00 ,  C09B33/02 ,  C09B33/24 ,  C09B45/24 ,  D06P3/32

    Abstract: Compounds which in the form of the free acid are of the general formula I I where A is a radical of the formula the radicals Y independently of one another are each hydroxyl or amino, X is hydrogen, hydroxysulfonyl or a radical of the formula D-N=N-, R is a radical of 1-aminonaphthalene-4-, -5-, -6-, -7-or -8-monosulfonic acid or of 1-aminonaphthalene-3-6,-, -3,7-, -3,8-, -4,7- or -4,8-disulfonic acid, or a Cu, Fe, Ni, Co, Mn or Cr complex thereof, and D is phenyl which is unsubstituted or substituted by methyl, methoxy,ethoxy, nitro, chlorine, bromine or sulfo, or is sulfo-substituted naphthyl. These compounds are preferably used for dyeing leather.

Patent Agency Ranking