having the carboxylic group directly attached to an aromatic carbocyclic ring

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    Azo compounds, azo pigments, pigment dispersion, coloring compositi...

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    • Nobuo Seto
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    Light-fast disazo dyestuffs

    • Patent number 5,844,101
    • Issue date Dec 1, 1998
    • Bayer Aktiengesellschaft
    • Klaus Kunde
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    Aminomethylnaphthalenecarboxlic acid dyestuffs

    • Patent number 5,795,971
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    • Bayer Aktiengesellschaft
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    Process for the mass coloration of polymers

    • Patent number 4,524,168
    • Issue date Jun 18, 1985
    • Ciba-Geigy Corporation
    • Arnold Wick
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    Water-soluble disazo dyestuffs and process for coloring synthetic p...

    • Patent number 4,194,883
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    • Hoechst Aktiengesellschaft
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    3519429

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    • Issue date Jul 7, 1970
    • C07 - ORGANIC CHEMISTRY
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    3507864

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    3468872

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    3321459

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    3321460

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    3262924

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    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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    3261658

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    3183225

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    3182091

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    3098096

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    2864816

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    2861985

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    2416547

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    2361642

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    1724663

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Patents Applicationslast 30 patents