Biscationic azo dyes and intermediates therefor

Details Biscationic azo dyes and intermediates therefor Biscationic azo dyes and intermediates therefor

1993-06-11

1995-06-13

Higel, Floyd D.

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

Organic compounds

Azo

534607, 534608, 546187, 546256, C09B 35031, C09B 4408, C09B 5700, D06P 141

Patent

active

054244048

ABSTRACT:
Biscationic azo dyes useful for dyeing or printing polymeric material have the formula ##STR1## where R.sup.1 is hydrogen or unsubstituted or phenyl-substituted C.sub.1 -C.sub.5 -alkyl,

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patent: 5015292 (1991-05-01), Bruder et al.
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patent: 5037964 (1991-08-01), Moser et al.
patent: 5059683 (1991-10-01), Moser et al.
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