69.
    发明专利
    未知

    公开(公告)号:AT253081B

    公开(公告)日:1967-03-28

    申请号:AT977465

    申请日:1965-10-28

    Applicant: BASF AG

    Abstract: The invention provides reactive dyes having the formula in which E is a coupling component which contains at least one sulphonic acid group, X is an anionic group capable of being eliminated, and the phenyl group A may be further substituted. The dyes are obtained by coupling a compound E-H with the diazo compound of an amine of formula In particular, X is a halogen atom preferably chlorine, or an -SO3H, -S.SO3H, -SCN, a quaternary ammonium or isothiuronium salt group, A may be substituted by alkyl, alkoxy or sulphonic acid groups or by a halogen atom. The dyes give blue-yellow-red colours on celluloric materials and also on wool, silk, leather and fur.

    70.
    发明专利
    未知

    公开(公告)号:AT165856T

    公开(公告)日:1998-05-15

    申请号:AT94102025

    申请日:1994-02-10

    Applicant: BASF AG

    Abstract: A process for the recycling of cured amino resins in which cured amino resins, optionally containing fillers, are treated with an aqueous sulphite, hydrogen sulphite or disulphite solution and the resultant low-molecular-weight degradation products are employed in chemical processes. The invention also relates to the low-molecular-weight degradation products of cured amino resins which are obtainable by this process, and to their use for the coating of mouldings, for the tanning of leather and hides, and for the production of mouldings containing or comprising cured amino resins.

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