Verfahren zur Herstellung neuer, gelber Pyrazolon-Farbstoffe

1,239,548. Yellow pyrazolone dyes. CROMPTOM & KNOWLES CORP. 2 Feb., 1970 [6 March, 1969], No. 4923/70. Heading C4P. The invention comprises yellow pyrazolone dyes of the general formula wherein M is -H, -Na, -K or -NH 4 and R is -CH 3 or -Cl. The dyes are obtained by coupling diazotized Tobias a...

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Bibliographic Details
Main Author F.,FEEMAN,JAMES
Format Patent
LanguageGerman
Published 15.06.1972
Edition1
Subjects
ADHESIVES
CHEMISTRY
DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM
DYEING OR PRINTING TEXTILES
DYES
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAKES
LAUNDERING
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
POLISHES
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
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Summary:1,239,548. Yellow pyrazolone dyes. CROMPTOM & KNOWLES CORP. 2 Feb., 1970 [6 March, 1969], No. 4923/70. Heading C4P. The invention comprises yellow pyrazolone dyes of the general formula wherein M is -H, -Na, -K or -NH 4 and R is -CH 3 or -Cl. The dyes are obtained by coupling diazotized Tobias acid (2-amino-1- naphthalene sulphonic acid) to a correspondingly structured pyrazolone.
Bibliography:Application Number: CH19700002941