Inventor
WESTPHAL JOCHEN
DE4 patents
Patents
4 patentsUS4670548AJun 2, 1987
Sulfo-group-containing trisazo dyestuffs
BAYER AG2 citations59
US4048154ASep 13, 1977
Monoazo dyestuffs derived from p-sulfo-halophenyl diazo moiety and p-amino-O-alkyl coupler moiety
BAYER AG3 citations55
US4978747ADec 18, 1990
Colorants obtained by reacting a NH2 -containing dyestuff with a diisocyanate followed by reaction of this adduct with a diamine
BAYER AG0 citations50
US4339380AJul 13, 1982
Azo dyestuffs
BAYER AG1 citations50