Patents Represented by Attorney Kevin T. Mansfields

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  • Mixtures of reactive dyes and their use
    Patent number: 5989298
    Abstract: Dye mixtures, which comprise at least one reactive dye of formulae (1) and (2) wherein B, D.sub.1, D.sub.2, (R.sub.1).sub.0-2, R.sub.3, R.sub.4, (R.sub.5).sub.0-2, (R.sub.6).sub.0-2, (R.sub.7).sub.0-2, p, q, V, X.sub.1, X.sub.2, X.sub.3, X.sub.4, X.sub.5, X.sub.6, X.sub.7, Y.sub.1 and Y.sub.3 have the meanings defined in claim 1, give dyeings of good fastness properties on nitrogen-containing or hydroxyl group-containing fiber materials.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: November 23, 1999
    Assignee: Ciba Speciality Chemicals Corporation
    Inventor: Urs Lehmann