Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1996-08-22
1998-02-10
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
534618, 534617, 534631, 534632, 534635, 534642, C09B 6209, C09B 62513, C09B 6208, C09B 62507, D06P 138
Patent
active
057170789
ABSTRACT:
Reactive dyes of the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,
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patent: 5276148 (1994-01-01), Siegel et al.
patent: 5428140 (1995-06-01), Wiesenfeldt et al.
patent: 5449762 (1995-09-01), Wiesenfeldt et al.
Aeschlimann Peter
Tzikas Athanassios
Ciba Specialty Chemicals Corporation
Crichton David R.
Higel Floyd D.
Mansfield Kevin T.
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