Intermediates and colorants having primary hydroxyl enriched pol

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

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534573, 534610, 534611, 534729, C09B 29033, C09B 2909, D06P 324

Patent

active

052909212

ABSTRACT:
The present invention provides primary hydroxyl enhanced colorants having markedly improved reactivities in e.g., polyurethane foams for imparting permanent coloring thereto, the colorants having the formula

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Venkataraman, "The Chemistry of Synthetic Dyes" Academic Press, New York, 1952, pp. 240-247.

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