26.
    发明专利
    未知

    公开(公告)号:BR7020928D0

    公开(公告)日:1973-04-12

    申请号:BR22092870

    申请日:1970-07-28

    Applicant: HOECHST AG

    Inventor: OPITZ K

    Abstract: 1292702 Disperse monoazo dyes FARBWERKE HOECHST AG 30 July 1970 [30 July 1969] 36842/70 Heading C4P The invention comprises monoazo dyes, free from acidic water-solubilizing groups, of formula wherein D is the radical of a benzene diazo component, Y is a H or halogen atom or an alkyl, alkoxy or acylamino group, Z is a H or halogen atom or an alkyl or alkoxy group, R is H or an alkyl group. A is alkylene and B and C are alkoxy or amino. The radical D and groups R, B and C (when amino) may be further substituted. The dyes are prepared by azo coupling and may be used to colour synthetic polyamide, polyester and cellulose acetate fibres in yellow, red and blue shades.

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