Disazo and polyazo compounds containing at least two cationic groups in metal-free or 1:1 or 1:2 metal complex form
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United States of America Patent
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Jun 2, 1987
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N/A
app pub date -
Jun 28, 1984
filing date -
Apr 24, 1982
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Expired
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Abstract
Compounds of the formula ##STR1## in metal-free, 1:1 or 1:2 metal complex form, or in acid addition salt form, where the symbols are defined in the specification, useful as dyes for, for example, regenerated cellulose, cotton, synthetic polyamides and polyesters modified to contain acid groups and polymers and copolymers of acrylonitrile and 1,1-dicyanoethylene.
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