Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1982-08-20
1984-11-27
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
8641, 534806, 534810, 534811, 534815, C09B 29045, C09B 3118, C09B 3322, C09B 3524
Patent
active
044850425
ABSTRACT:
Leathers can be advantageously dyed with water-soluble polyazo dyestuffs having, in the form of the free acid, the formula ##STR1## wherein A is a member of the benzene, naphthalene or heterocyclic series;
REFERENCES:
patent: 536431 (1895-03-01), Kahn et al.
patent: 671543 (1901-04-01), Elbel et al.
patent: 1602991 (1926-10-01), Schweitzer et al.
patent: 2094845 (1937-10-01), Krzikalla et al.
patent: 2750375 (1956-06-01), Siebert et al.
patent: 2758109 (1956-08-01), Huss et al.
patent: 2833756 (1958-05-01), Fleischhauer
patent: 2885390 (1959-05-01), Huss et al.
patent: 2885391 (1959-05-01), Huss et al.
Armbrecht Norbert
Bauer Wolfgang
Ribka Joachim
Cassella Aktiengesellschaft
Higel Floyd D.
LandOfFree
Dyestuff containing at least three azo bridges does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dyestuff containing at least three azo bridges, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dyestuff containing at least three azo bridges will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2133764