Process for the production of concentrated solutions of cationic azo dyes

Process for the production of concentrated solutions of cationic azo dyes

Concentrated solutions of cationic azo dyes are prepared directly from sparingly soluble salts of the dye in a one-step reaction by reacting the sparingly soluble dye with a non-chromophoric carboxylate salt, the cation of which forms an insoluble or sparingly soluble salt with the anion of the star...

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Hauptverfasser: BLASS, ULRICH, ENTSCHEL, ROLAND
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMISTRY
DYES
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
POLISHES
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creator BLASS
ULRICH
ENTSCHEL
ROLAND
description Concentrated solutions of cationic azo dyes are prepared directly from sparingly soluble salts of the dye in a one-step reaction by reacting the sparingly soluble dye with a non-chromophoric carboxylate salt, the cation of which forms an insoluble or sparingly soluble salt with the anion of the starting cationic azo dye in the solvent system employed.
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subjects ADHESIVES
CHEMISTRY
DYES
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
POLISHES
title Process for the production of concentrated solutions of cationic azo dyes
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