Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Mixed dyes – noncomplexed
Patent
1989-11-09
1991-07-09
Higel, Floyd D.
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Mixed dyes, noncomplexed
534573, 534745, 534746, 534748, 534575, C09B 6720, C09B 6722, C09B 6748, D06P 144
Patent
active
050302477
ABSTRACT:
Mixtures of azo pigments of the formulae ##STR1## wherein each R.sub.1 is independently C.sub.1-4 alkyl, and
REFERENCES:
patent: 3361736 (1968-01-01), Ribka
patent: 3900459 (1975-08-01), Kawamura et al.
patent: 3997521 (1976-12-01), Forter et al.
patent: 4003886 (1977-01-01), Muller
Higel Floyd D.
Kassenoff Melvyn M.
Sandoz Ltd.
Sharkin Gerald D.
Vila Richard E.
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