Hydroxynaphthalenecarboxylic acid compounds and azo colorants ma

Details Hydroxynaphthalenecarboxylic acid compounds and azo colorants ma Hydroxynaphthalenecarboxylic acid compounds and azo colorants ma

1994-10-21

1996-07-02

Higel, Floyd D.

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

Organic compounds

Azo

534864, 564180, 106 23K, 106494, C09B 2920, C09B 6722

Patent

active

055323464

ABSTRACT:
A coupling component for use in the synthesis of azo colorants, selected from compounds having the formula: ##STR1## wherein R.sub.1 is Y or arylene-(Y).sub.n, where n is an integer from 1-4; R.sub.2 is H, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl, aryl, or Y; provided that if R.sub.1 is arylene-(Y).sub.n, then R.sub.2 is not aryl; R.sub.3 is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, SO.sub.3 H, Br, Cl, OH, or NO.sub.2 and m is an integer from 0-3; and Y is a poly(oxyalkylene) substituent having from 4-200 oxyalkylene units which are the addition products of compounds selected from the group consisting of ethylene oxide and propylene oxide.

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