Monoazo dispersion dyes from diazotised indazoles - coupled with 2-hydroxy pyridone-6 cpds.

    公开(公告)号:DE2517446A1

    公开(公告)日:1976-10-28

    申请号:DE2517446

    申请日:1975-04-19

    Applicant: BASF AG

    Abstract: Monoazo dispersion dyes of formula nI): (in which A is H or 1-3C alkyl; B is H, 1-8C alkyl, cyclohexyl, benzyl or phenylethyl, all opt. substd. with OH or 1-4C alkoxy, or phenyl opt. substd. with Cl, methyl or methoxy; X is CN or carbamoyl; R2 is H, methyl, ethyl, methoxy, ethoxy or Cl; R1 is as R2 or Br; R is COOH or its ester; or opt. substd. carbamoyl) are used for dyeing acrylonitrile polymers, polyamides, cellulose esters and esp. linear polyesters in yellow to orange shades, and give high colour strength and fastness to light and thermofixing.

    5.
    发明专利
    未知

    公开(公告)号:DE2916697A1

    公开(公告)日:1980-11-13

    申请号:DE2916697

    申请日:1979-04-25

    Applicant: BASF AG

    Abstract: A process for the preparation of insoluble metal complex colorants of the formula (I) where R, R1, R2 and R3 may be identical or different and each is hydrogen, C1-C4-alkyl, C1-C4-alkoxy, chlorine, bromine, trifluoromethyl or phenyl, Me is copper, cobalt or preferably nickel, Z is NH, O or S and A is one equivalent of an anion, by condensing the corresponding 1,3-diiminoisoindoline and thiazolidine derivative in the molar ratio of 1:1 in water, isolating the 1:1 condensation product, reacting the latter with a metal salt MeA2 in an aprotic polar water-miscible solvent and isolating the reaction product. The water-containing press cake of the 1:1 condensation product can be used for the reaction with the metal salt MeA2, in which case the water, together with a part of the solvent, is distilled off during the reaction in which (I) is formed. The process has great economic advantages over the prior art processes.

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